[InferAlignment] Enable InferAlignment pass by default

[0xdc03]

Summary

This gives an improvement of 0.6%:
https://llvm-compile-time-tracker.com/compare.php?from=7d35fe6d08e2b9b786e1c8454cd2391463832167&to=0456c8e8a42be06b62ad4c3e3cf34b21f2633d1e&stat=instructions:u

[0xdc03]

• Move pipeline tests to the correct place

[0xdc03]

• Rebase on main

[0xdc03]

• Move test changes

[aeubanks]

llvm/test/Transforms/PhaseOrdering/X86/excessive-unrolling.ll

135 ↗

(On Diff #556286)

any idea why this regressed?

[0xdc03]

llvm/test/Transforms/PhaseOrdering/X86/excessive-unrolling.ll

135 ↗

(On Diff #556286)

Loop unrolling causes generation of instructions after InferAlignment runs, so this is not caught by it.

[0xdc03]

• Rebase on main
• Update tests following change in D158529

[aeubanks]

llvm/lib/Passes/PassBuilderPipelines.cpp

1285

can this also be replaced with the new pass?

[0xdc03]

llvm/lib/Passes/PassBuilderPipelines.cpp

1285

I do not believe so, because this uses SCEV information whereas the InferAlignment pass does not. It can probably be implemented in a later patch though.

[0xdc03]

• Fix broken test cases

[nikic]

LGTM -- based on stats this should be low impact, so let's try it. This very runs the pass two times (before and after unrolling), which is probably more than we need longer term but for now should hopefully avoid regressions.

[nlopes]

I'm confused...

This pass regresses alignment information in a lot of tests. I've also observed in when compiling real programs.
What's the reason for enabling this?

[nikic]

In D158600#4649040, @nlopes wrote:

I'm confused...

This pass regresses alignment information in a lot of tests. I've also observed in when compiling real programs.

The test regressions in this diff are just an artifact of inference moving into a different pass (the tests run instcombine as part of the pipeline, while is no longer responsible for alignment inference). If you see end-to-end regressions in alignment information, that would be a problem though. Do you have an example?

[nlopes]

In D158600#4649041, @nikic wrote:

In D158600#4649040, @nlopes wrote:

I'm confused...

This pass regresses alignment information in a lot of tests. I've also observed in when compiling real programs.

The test regressions in this diff are just an artifact of inference moving into a different pass (the tests run instcombine as part of the pipeline, while is no longer responsible for alignment inference). If you see end-to-end regressions in alignment information, that would be a problem though. Do you have an example?

Ah, I see.
No, didn't see end-to-end regressions. I was looking somewhere in the middle of the pipeline only.
But this may impact alias analysis, depending on how often and there this new pass runs. Instcombine runs more often than this pass. We need to monitor for regressions.

[alexfh]

We've started seeing ubsan unaligned access errors after this commit. I'm not yet sure the code is correct, so just a heads up for now.

llvm/lib/Passes/PassBuilderPipelines.cpp

cl::values(clEnumValN(AttributorRunOption::ALL, "all",
                clEnumValN(AttributorRunOption::NONE, "none",
                           "disable attributor runs")));
 
 cl::opt<bool> EnableMemProfContextDisambiguation(
     "enable-memprof-context-disambiguation", cl::init(false), cl::Hidden,
     cl::ZeroOrMore, cl::desc("Enable MemProf context disambiguation"));
 
 cl::opt<bool> EnableInferAlignmentPass(
-    "enable-infer-alignment-pass", cl::init(false), cl::Hidden, cl::ZeroOrMore,
+    "enable-infer-alignment-pass", cl::init(true), cl::Hidden, cl::ZeroOrMore,
     cl::desc("Enable the InferAlignment pass, disabling alignment inference in "
              "InstCombine"));
 
 PipelineTuningOptions::PipelineTuningOptions() {
   LoopInterleaving = true;
   LoopVectorization = true;
   SLPVectorization = false;
   LoopUnrolling = true;
void PassBuilder::addVectorPasses(OptimizationLevel Level,
   //      unroll pass when IsFullLTO=false.
   FPM.addPass(createFunctionToLoopPassAdaptor(
       LICMPass(PTO.LicmMssaOptCap, PTO.LicmMssaNoAccForPromotionCap,
                /*AllowSpeculation=*/true),
       /*UseMemorySSA=*/true, /*UseBlockFrequencyInfo=*/false));
 
   // Now that we've vectorized and unrolled loops, we may have more refined
   // alignment information, try to re-derive it here.
   FPM.addPass(AlignmentFromAssumptionsPass());
 }
 
 ModulePassManager
 PassBuilder::buildModuleOptimizationPipeline(OptimizationLevel Level,
                                              ThinOrFullLTOPhase LTOPhase) {
   const bool LTOPreLink = isLTOPreLink(LTOPhase);
   ModulePassManager MPM;
 

llvm/test/Analysis/BasicAA/featuretest.ll

 define i32 @gep_distance_test3(ptr %A) {
 ; NO_ASSUME-LABEL: @gep_distance_test3(
 ; NO_ASSUME-NEXT:    [[C:%.*]] = getelementptr i8, ptr [[A:%.*]], i64 4
 ; NO_ASSUME-NEXT:    store i8 42, ptr [[C]], align 1
 ; NO_ASSUME-NEXT:    ret i32 0
 ;
 ; USE_ASSUME-LABEL: @gep_distance_test3(
 ; USE_ASSUME-NEXT:    [[C:%.*]] = getelementptr i8, ptr [[A:%.*]], i64 4
-; USE_ASSUME-NEXT:    store i8 42, ptr [[C]], align 4
+; USE_ASSUME-NEXT:    store i8 42, ptr [[C]], align 1
 ; USE_ASSUME-NEXT:    call void @llvm.assume(i1 true) [ "dereferenceable"(ptr [[A]], i64 4), "nonnull"(ptr [[A]]), "align"(ptr [[A]], i64 4) ]
 ; USE_ASSUME-NEXT:    ret i32 0
 ;
   %X = load i32, ptr %A
   %C = getelementptr i8, ptr %A, i64 4
   store i8 42, ptr %C
   %Y = load i32, ptr %A
   %R = sub i32 %X, %Y

llvm/test/Analysis/ValueTracking/assume.ll

 ; CHECK-LABEL: @test4a(
 ; CHECK-NEXT:    call void @llvm.assume(i1 true) [ "dereferenceable"(ptr [[TMP0:%.*]], i32 4), "align"(ptr [[TMP0]], i32 8) ]
 ; CHECK-NEXT:    br i1 [[COND:%.*]], label [[A:%.*]], label [[B:%.*]]
 ; CHECK:       B:
 ; CHECK-NEXT:    br label [[A]]
 ; CHECK:       A:
 ; CHECK-NEXT:    br i1 false, label [[TMP4:%.*]], label [[TMP2:%.*]]
 ; CHECK:       2:
-; CHECK-NEXT:    [[TMP3:%.*]] = load i32, ptr [[TMP0]], align 8
+; CHECK-NEXT:    [[TMP3:%.*]] = load i32, ptr [[TMP0]], align 4
 ; CHECK-NEXT:    br label [[TMP4]]
 ; CHECK:       4:
 ; CHECK-NEXT:    [[TMP5:%.*]] = phi i32 [ [[TMP3]], [[TMP2]] ], [ poison, [[A]] ]
 ; CHECK-NEXT:    ret i32 [[TMP5]]
 ;
   call void @llvm.assume(i1 true) ["dereferenceable"(ptr %0, i32 4), "align"(ptr %0, i32 8)]
   br i1 %cond, label %A, label %B
 

llvm/test/CodeGen/AMDGPU/implicit-arg-v5-opt.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=amdgpu-lower-kernel-attributes,instcombine %s | FileCheck -enable-var-scope -check-prefix=GCN %s
+; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=amdgpu-lower-kernel-attributes,instcombine,infer-alignment %s | FileCheck -enable-var-scope -check-prefix=GCN %s
 
 ; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
 define amdgpu_kernel void @get_local_size_x(ptr addrspace(1) %out) #0 {
 ; GCN-LABEL: @get_local_size_x(
 ; GCN-NEXT:    [[IMPLICITARG_PTR:%.*]] = tail call ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
 ; GCN-NEXT:    [[GEP_LOCAL_SIZE:%.*]] = getelementptr inbounds i8, ptr addrspace(4) [[IMPLICITARG_PTR]], i64 12
 ; GCN-NEXT:    [[LOCAL_SIZE:%.*]] = load i16, ptr addrspace(4) [[GEP_LOCAL_SIZE]], align 4
 ; GCN-NEXT:    store i16 [[LOCAL_SIZE]], ptr addrspace(1) [[OUT:%.*]], align 2

llvm/test/CodeGen/AMDGPU/reqd-work-group-size.ll

-; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=amdgpu-lower-kernel-attributes,instcombine %s | FileCheck -enable-var-scope %s
-; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=amdgpu-lower-kernel-attributes,instcombine %s | FileCheck -enable-var-scope %s
+; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=amdgpu-lower-kernel-attributes,instcombine,infer-alignment %s | FileCheck -enable-var-scope %s
+; RUN: opt -mtriple=amdgcn-amd-amdhsa -S -passes=amdgpu-lower-kernel-attributes,instcombine,infer-alignment %s | FileCheck -enable-var-scope %s
 
 target datalayout = "n32"
 
 ; CHECK-LABEL: @invalid_reqd_work_group_size(
 ; CHECK: load i16,
 define amdgpu_kernel void @invalid_reqd_work_group_size(ptr addrspace(1) %out) #0 !reqd_work_group_size !1 {
   %dispatch.ptr = tail call ptr addrspace(4) @llvm.amdgcn.dispatch.ptr()
   %gep.group.size.x = getelementptr inbounds i8, ptr addrspace(4) %dispatch.ptr, i64 4

llvm/test/Other/new-pm-defaults.ll

 ; CHECK-O-NEXT: Running pass: LoopSimplifyPass
 ; CHECK-O-NEXT: Running pass: LCSSAPass
 ; CHECK-O-NEXT: Running pass: LoopRotatePass
 ; CHECK-O-NEXT: Running pass: LoopDeletionPass
 ; CHECK-O-NEXT: Running pass: LoopDistributePass
 ; CHECK-O-NEXT: Running analysis: LoopAccessAnalysis on foo
 ; CHECK-O-NEXT: Running pass: InjectTLIMappings
 ; CHECK-O-NEXT: Running pass: LoopVectorizePass
+; CHECK-O-NEXT: Running pass: InferAlignmentPass
 ; CHECK-O-NEXT: Running pass: LoopLoadEliminationPass
 ; CHECK-O-NEXT: Running pass: InstCombinePass
 ; CHECK-O-NEXT: Running pass: SimplifyCFGPass
 ; CHECK-O2-NEXT: Running pass: SLPVectorizerPass
 ; CHECK-O3-NEXT: Running pass: SLPVectorizerPass
 ; CHECK-Os-NEXT: Running pass: SLPVectorizerPass
 ; CHECK-O-NEXT: Running pass: VectorCombinePass
 ; CHECK-O-NEXT: Running pass: InstCombinePass
 ; CHECK-O-NEXT: Running pass: LoopUnrollPass
 ; CHECK-O-NEXT: Running pass: WarnMissedTransformationsPass
 ; CHECK-O-NEXT: Running pass: SROAPass
+; CHECK-O-NEXT: Running pass: InferAlignmentPass
 ; CHECK-O-NEXT: Running pass: InstCombinePass
 ; CHECK-O-NEXT: Running pass: LoopSimplifyPass
 ; CHECK-O-NEXT: Running pass: LCSSAPass
 ; CHECK-O-NEXT: Running pass: LICMPass
 ; CHECK-O-NEXT: Running pass: AlignmentFromAssumptionsPass
 ; CHECK-O-NEXT: Running pass: LoopSinkPass
 ; CHECK-O-NEXT: Running pass: InstSimplifyPass
 ; CHECK-O-NEXT: Running pass: DivRemPairsPass

llvm/test/Other/new-pm-lto-defaults.ll

 ; CHECK-O23SZ-NEXT: Running pass: LCSSAPass on foo
 ; CHECK-O23SZ-NEXT: Running pass: IndVarSimplifyPass on loop
 ; CHECK-O23SZ-NEXT: Running pass: LoopDeletionPass on loop
 ; CHECK-O23SZ-NEXT: Running pass: LoopFullUnrollPass on loop
 ; CHECK-O23SZ-NEXT: Running pass: LoopDistributePass on foo
 ; CHECK-O23SZ-NEXT: Running analysis: LoopAccessAnalysis on foo
 ; CHECK-O23SZ-NEXT: Running pass: LoopVectorizePass on foo
 ; CHECK-O23SZ-NEXT: Running analysis: DemandedBitsAnalysis on foo
+; CHECK-O23SZ-NEXT: Running pass: InferAlignmentPass on foo
 ; CHECK-O23SZ-NEXT: Running pass: LoopUnrollPass on foo
 ; CHECK-O23SZ-NEXT: WarnMissedTransformationsPass on foo
 ; CHECK-O23SZ-NEXT: Running pass: SROAPass on foo
 ; CHECK-O23SZ-NEXT: Running pass: InstCombinePass on foo
 ; CHECK-O23SZ-NEXT: Running pass: SimplifyCFGPass on foo
 ; CHECK-O23SZ-NEXT: Running pass: SCCPPass on foo
 ; CHECK-O23SZ-NEXT: Running pass: InstCombinePass on foo
 ; CHECK-O23SZ-NEXT: Running pass: BDCEPass on foo
 ; CHECK-O2-NEXT: Running pass: SLPVectorizerPass on foo
 ; CHECK-O3-NEXT: Running pass: SLPVectorizerPass on foo
 ; CHECK-OS-NEXT: Running pass: SLPVectorizerPass on foo
 ; CHECK-O23SZ-NEXT: Running pass: VectorCombinePass on foo
+; CHECK-O23SZ-NEXT: Running pass: InferAlignmentPass on foo
 ; CHECK-O23SZ-NEXT: Running pass: InstCombinePass on foo
 ; CHECK-O23SZ-NEXT: Running pass: LoopSimplifyPass
 ; CHECK-O23SZ-NEXT: Running pass: LCSSAPass
 ; CHECK-O23SZ-NEXT: Running pass: LICMPass
 ; CHECK-O23SZ-NEXT: Running pass: AlignmentFromAssumptionsPass on foo
 ; CHECK-EP-Peephole-NEXT: Running pass: NoOpFunctionPass on foo
 ; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass on foo
 ; CHECK-O23SZ-NEXT: Running pass: LowerTypeTestsPass

llvm/test/Other/new-pm-thinlto-postlink-defaults.ll

 ; CHECK-POSTLINK-O-NEXT: Running pass: LoopSimplifyPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: LCSSAPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: LoopRotatePass
 ; CHECK-POSTLINK-O-NEXT: Running pass: LoopDeletionPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: LoopDistributePass
 ; CHECK-POSTLINK-O-NEXT: Running analysis: LoopAccessAnalysis on foo
 ; CHECK-POSTLINK-O-NEXT: Running pass: InjectTLIMappings
 ; CHECK-POSTLINK-O-NEXT: Running pass: LoopVectorizePass
+; CHECK-POSTLINK-O-NEXT: Running pass: InferAlignmentPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: LoopLoadEliminationPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: InstCombinePass
 ; CHECK-POSTLINK-O-NEXT: Running pass: SimplifyCFGPass
 ; CHECK-POSTLINK-O2-NEXT: Running pass: SLPVectorizerPass
 ; CHECK-POSTLINK-O3-NEXT: Running pass: SLPVectorizerPass
 ; CHECK-POSTLINK-Os-NEXT: Running pass: SLPVectorizerPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: VectorCombinePass
 ; CHECK-POSTLINK-O-NEXT: Running pass: InstCombinePass
 ; CHECK-POSTLINK-O-NEXT: Running pass: LoopUnrollPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: WarnMissedTransformationsPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: SROAPass
+; CHECK-POSTLINK-O-NEXT: Running pass: InferAlignmentPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: InstCombinePass
 ; CHECK-POSTLINK-O-NEXT: Running pass: LoopSimplifyPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: LCSSAPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: LICMPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: AlignmentFromAssumptionsPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: LoopSinkPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: InstSimplifyPass
 ; CHECK-POSTLINK-O-NEXT: Running pass: DivRemPairsPass

llvm/test/Other/new-pm-thinlto-postlink-pgo-defaults.ll

 ; CHECK-O-NEXT: Running pass: LoopSimplifyPass on foo
 ; CHECK-O-NEXT: Running pass: LCSSAPass on foo
 ; CHECK-O-NEXT: Running pass: LoopRotatePass
 ; CHECK-O-NEXT: Running pass: LoopDeletionPass
 ; CHECK-O-NEXT: Running pass: LoopDistributePass
 ; CHECK-O-NEXT: Running analysis: LoopAccessAnalysis on foo
 ; CHECK-O-NEXT: Running pass: InjectTLIMappings
 ; CHECK-O-NEXT: Running pass: LoopVectorizePass
+; CHECK-O-NEXT: Running pass: InferAlignmentPass
 ; CHECK-O-NEXT: Running pass: LoopLoadEliminationPass
 ; CHECK-O-NEXT: Running pass: InstCombinePass
 ; CHECK-O-NEXT: Running pass: SimplifyCFGPass
 ; CHECK-O2-NEXT: Running pass: SLPVectorizerPass
 ; CHECK-O3-NEXT: Running pass: SLPVectorizerPass
 ; CHECK-Os-NEXT: Running pass: SLPVectorizerPass
 ; CHECK-O-NEXT: Running pass: VectorCombinePass
 ; CHECK-O-NEXT: Running pass: InstCombinePass
 ; CHECK-O-NEXT: Running pass: LoopUnrollPass
 ; CHECK-O-NEXT: Running pass: WarnMissedTransformationsPass
 ; CHECK-O-NEXT: Running pass: SROAPass
+; CHECK-O-NEXT: Running pass: InferAlignmentPass
 ; CHECK-O-NEXT: Running pass: InstCombinePass
 ; CHECK-O-NEXT: Running pass: LoopSimplifyPass
 ; CHECK-O-NEXT: Running pass: LCSSAPass
 ; CHECK-O-NEXT: Running pass: LICMPass
 ; CHECK-O-NEXT: Running pass: AlignmentFromAssumptionsPass
 ; CHECK-O-NEXT: Running pass: LoopSinkPass
 ; CHECK-O-NEXT: Running pass: InstSimplifyPass
 ; CHECK-O-NEXT: Running pass: DivRemPairsPass

llvm/test/Other/new-pm-thinlto-postlink-samplepgo-defaults.ll

 ; CHECK-O-NEXT: Running pass: LoopSimplifyPass
 ; CHECK-O-NEXT: Running pass: LCSSAPass
 ; CHECK-O-NEXT: Running pass: LoopRotatePass
 ; CHECK-O-NEXT: Running pass: LoopDeletionPass
 ; CHECK-O-NEXT: Running pass: LoopDistributePass
 ; CHECK-O-NEXT: Running analysis: LoopAccessAnalysis
 ; CHECK-O-NEXT: Running pass: InjectTLIMappings
 ; CHECK-O-NEXT: Running pass: LoopVectorizePass
+; CHECK-O-NEXT: Running pass: InferAlignmentPass
 ; CHECK-O-NEXT: Running pass: LoopLoadEliminationPass
 ; CHECK-O-NEXT: Running pass: InstCombinePass
 ; CHECK-O-NEXT: Running pass: SimplifyCFGPass
 ; CHECK-O2-NEXT: Running pass: SLPVectorizerPass
 ; CHECK-O3-NEXT: Running pass: SLPVectorizerPass
 ; CHECK-Os-NEXT: Running pass: SLPVectorizerPass
 ; CHECK-O-NEXT: Running pass: VectorCombinePass
 ; CHECK-O-NEXT: Running pass: InstCombinePass
 ; CHECK-O-NEXT: Running pass: LoopUnrollPass
 ; CHECK-O-NEXT: Running pass: WarnMissedTransformationsPass
 ; CHECK-O-NEXT: Running pass: SROAPass
+; CHECK-O-NEXT: Running pass: InferAlignmentPass
 ; CHECK-O-NEXT: Running pass: InstCombinePass
 ; CHECK-O-NEXT: Running pass: LoopSimplifyPass
 ; CHECK-O-NEXT: Running pass: LCSSAPass
 ; CHECK-O-NEXT: Running pass: LICMPass
 ; CHECK-O-NEXT: Running pass: AlignmentFromAssumptionsPass
 ; CHECK-O-NEXT: Running pass: LoopSinkPass
 ; CHECK-O-NEXT: Running pass: InstSimplifyPass
 ; CHECK-O-NEXT: Running pass: DivRemPairsPass

llvm/test/Transforms/InstCombine/2009-01-08-AlignAlloca.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -passes=instcombine -S | FileCheck %s
 
 ; rdar://6480438
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
 target triple = "i386-apple-darwin9.6"
   %struct.Key = type { { i32, i32 } }
   %struct.anon = type <{ i8, [3 x i8], i32 }>
 
 define i32 @bar(i64 %key_token2) nounwind {
 ; CHECK-LABEL: @bar(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[IOSPEC:%.*]] = alloca [[STRUCT_KEY:%.*]], align 8
 ; CHECK-NEXT:    [[RET:%.*]] = alloca i32, align 4
-; CHECK-NEXT:    store i32 0, ptr [[IOSPEC]], align 8
+; CHECK-NEXT:    store i32 0, ptr [[IOSPEC]], align 4
 ; CHECK-NEXT:    [[TMP0:%.*]] = getelementptr inbounds { i32, i32 }, ptr [[IOSPEC]], i32 0, i32 1
 ; CHECK-NEXT:    store i32 0, ptr [[TMP0]], align 4
-; CHECK-NEXT:    store i64 [[KEY_TOKEN2:%.*]], ptr [[IOSPEC]], align 8
+; CHECK-NEXT:    store i64 [[KEY_TOKEN2:%.*]], ptr [[IOSPEC]], align 4
 ; CHECK-NEXT:    [[TMP1:%.*]] = call i32 (...) @foo(ptr nonnull byval([[STRUCT_KEY]]) align 4 [[IOSPEC]], ptr nonnull [[RET]]) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    [[TMP2:%.*]] = load i32, ptr [[RET]], align 4
 ; CHECK-NEXT:    ret i32 [[TMP2]]
 ;
 entry:
   %iospec = alloca %struct.Key    ; <ptr> [#uses=3]
   %ret = alloca i32   ; <ptr> [#uses=2]
   %"alloca point" = bitcast i32 0 to i32    ; <i32> [#uses=0]

llvm/test/Transforms/InstCombine/2009-02-20-InstCombine-SROA.ll

 ; IC-NEXT:  entry:
 ; IC-NEXT:    [[__FIRST_ADDR_I_I:%.*]] = alloca %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >", align 8
 ; IC-NEXT:    [[__LAST_ADDR_I_I:%.*]] = alloca %"struct.__gnu_cxx::__normal_iterator<int*,std::vector<int, std::allocator<int> > >", align 8
 ; IC-NEXT:    [[TMP0:%.*]] = alloca i32, align 4
 ; IC-NEXT:    store i32 42, ptr [[TMP0]], align 4
 ; IC-NEXT:    [[TMP1:%.*]] = getelementptr %"struct.std::_Vector_base<int,std::allocator<int> >::_Vector_impl", ptr [[X:%.*]], i32 0, i32 1
 ; IC-NEXT:    [[TMP2:%.*]] = load ptr, ptr [[TMP1]], align 4
 ; IC-NEXT:    [[TMP3:%.*]] = load ptr, ptr [[X]], align 4
-; IC-NEXT:    store ptr [[TMP3]], ptr [[__FIRST_ADDR_I_I]], align 8
-; IC-NEXT:    store ptr [[TMP2]], ptr [[__LAST_ADDR_I_I]], align 8
+; IC-NEXT:    store ptr [[TMP3]], ptr [[__FIRST_ADDR_I_I]], align 4
+; IC-NEXT:    store ptr [[TMP2]], ptr [[__LAST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP4:%.*]] = ptrtoint ptr [[TMP2]] to i32
 ; IC-NEXT:    [[TMP5:%.*]] = ptrtoint ptr [[TMP3]] to i32
 ; IC-NEXT:    [[TMP6:%.*]] = sub i32 [[TMP4]], [[TMP5]]
 ; IC-NEXT:    [[TMP7:%.*]] = ashr i32 [[TMP6]], 4
 ; IC-NEXT:    br label [[BB12_I_I:%.*]]
 ; IC:       bb.i.i:
-; IC-NEXT:    [[TMP8:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP8:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP9:%.*]] = load i32, ptr [[TMP8]], align 4
 ; IC-NEXT:    [[TMP10:%.*]] = load i32, ptr [[TMP0]], align 4
 ; IC-NEXT:    [[TMP11:%.*]] = icmp eq i32 [[TMP9]], [[TMP10]]
 ; IC-NEXT:    br i1 [[TMP11]], label [[BB1_I_I:%.*]], label [[BB2_I_I:%.*]]
 ; IC:       bb1.i.i:
-; IC-NEXT:    [[TMP12:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP12:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    br label [[_ZST4FINDIN9__GNU_CXX17__NORMAL_ITERATORIPIST6VECTORIISAIIEEEEIET_S7_S7_RKT0__EXIT:%.*]]
 ; IC:       bb2.i.i:
-; IC-NEXT:    [[TMP13:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP13:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP14:%.*]] = getelementptr i32, ptr [[TMP13]], i32 1
-; IC-NEXT:    store ptr [[TMP14]], ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    store ptr [[TMP14]], ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP15:%.*]] = load i32, ptr [[TMP14]], align 4
 ; IC-NEXT:    [[TMP16:%.*]] = load i32, ptr [[TMP0]], align 4
 ; IC-NEXT:    [[TMP17:%.*]] = icmp eq i32 [[TMP15]], [[TMP16]]
 ; IC-NEXT:    br i1 [[TMP17]], label [[BB4_I_I:%.*]], label [[BB5_I_I:%.*]]
 ; IC:       bb4.i.i:
-; IC-NEXT:    [[TMP18:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP18:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    br label [[_ZST4FINDIN9__GNU_CXX17__NORMAL_ITERATORIPIST6VECTORIISAIIEEEEIET_S7_S7_RKT0__EXIT]]
 ; IC:       bb5.i.i:
-; IC-NEXT:    [[TMP19:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP19:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP20:%.*]] = getelementptr i32, ptr [[TMP19]], i32 1
-; IC-NEXT:    store ptr [[TMP20]], ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    store ptr [[TMP20]], ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP21:%.*]] = load i32, ptr [[TMP20]], align 4
 ; IC-NEXT:    [[TMP22:%.*]] = load i32, ptr [[TMP0]], align 4
 ; IC-NEXT:    [[TMP23:%.*]] = icmp eq i32 [[TMP21]], [[TMP22]]
 ; IC-NEXT:    br i1 [[TMP23]], label [[BB7_I_I:%.*]], label [[BB8_I_I:%.*]]
 ; IC:       bb7.i.i:
-; IC-NEXT:    [[TMP24:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP24:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    br label [[_ZST4FINDIN9__GNU_CXX17__NORMAL_ITERATORIPIST6VECTORIISAIIEEEEIET_S7_S7_RKT0__EXIT]]
 ; IC:       bb8.i.i:
-; IC-NEXT:    [[TMP25:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP25:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP26:%.*]] = getelementptr i32, ptr [[TMP25]], i32 1
-; IC-NEXT:    store ptr [[TMP26]], ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    store ptr [[TMP26]], ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP27:%.*]] = load i32, ptr [[TMP26]], align 4
 ; IC-NEXT:    [[TMP28:%.*]] = load i32, ptr [[TMP0]], align 4
 ; IC-NEXT:    [[TMP29:%.*]] = icmp eq i32 [[TMP27]], [[TMP28]]
 ; IC-NEXT:    br i1 [[TMP29]], label [[BB10_I_I:%.*]], label [[BB11_I_I:%.*]]
 ; IC:       bb10.i.i:
-; IC-NEXT:    [[TMP30:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP30:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    br label [[_ZST4FINDIN9__GNU_CXX17__NORMAL_ITERATORIPIST6VECTORIISAIIEEEEIET_S7_S7_RKT0__EXIT]]
 ; IC:       bb11.i.i:
-; IC-NEXT:    [[TMP31:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP31:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP32:%.*]] = getelementptr i32, ptr [[TMP31]], i32 1
-; IC-NEXT:    store ptr [[TMP32]], ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    store ptr [[TMP32]], ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP33:%.*]] = add i32 [[__TRIP_COUNT_0_I_I:%.*]], -1
 ; IC-NEXT:    br label [[BB12_I_I]]
 ; IC:       bb12.i.i:
 ; IC-NEXT:    [[__TRIP_COUNT_0_I_I]] = phi i32 [ [[TMP7]], [[ENTRY:%.*]] ], [ [[TMP33]], [[BB11_I_I]] ]
 ; IC-NEXT:    [[TMP34:%.*]] = icmp sgt i32 [[__TRIP_COUNT_0_I_I]], 0
 ; IC-NEXT:    br i1 [[TMP34]], label [[BB_I_I:%.*]], label [[BB13_I_I:%.*]]
 ; IC:       bb13.i.i:
-; IC-NEXT:    [[TMP35:%.*]] = load ptr, ptr [[__LAST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP35:%.*]] = load ptr, ptr [[__LAST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP36:%.*]] = ptrtoint ptr [[TMP35]] to i32
-; IC-NEXT:    [[TMP37:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP37:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP38:%.*]] = ptrtoint ptr [[TMP37]] to i32
 ; IC-NEXT:    [[TMP39:%.*]] = sub i32 [[TMP36]], [[TMP38]]
 ; IC-NEXT:    [[TMP40:%.*]] = ashr i32 [[TMP39]], 2
 ; IC-NEXT:    switch i32 [[TMP40]], label [[BB26_I_I:%.*]] [
 ; IC-NEXT:    i32 1, label [[BB22_I_I:%.*]]
 ; IC-NEXT:    i32 2, label [[BB18_I_I:%.*]]
 ; IC-NEXT:    i32 3, label [[BB14_I_I:%.*]]
 ; IC-NEXT:    ]
 ; IC:       bb14.i.i:
-; IC-NEXT:    [[TMP41:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP41:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP42:%.*]] = load i32, ptr [[TMP41]], align 4
 ; IC-NEXT:    [[TMP43:%.*]] = load i32, ptr [[TMP0]], align 4
 ; IC-NEXT:    [[TMP44:%.*]] = icmp eq i32 [[TMP42]], [[TMP43]]
 ; IC-NEXT:    br i1 [[TMP44]], label [[BB16_I_I:%.*]], label [[BB17_I_I:%.*]]
 ; IC:       bb16.i.i:
-; IC-NEXT:    [[TMP45:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP45:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    br label [[_ZST4FINDIN9__GNU_CXX17__NORMAL_ITERATORIPIST6VECTORIISAIIEEEEIET_S7_S7_RKT0__EXIT]]
 ; IC:       bb17.i.i:
-; IC-NEXT:    [[TMP46:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP46:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP47:%.*]] = getelementptr i32, ptr [[TMP46]], i32 1
-; IC-NEXT:    store ptr [[TMP47]], ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    store ptr [[TMP47]], ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    br label [[BB18_I_I]]
 ; IC:       bb18.i.i:
-; IC-NEXT:    [[TMP48:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP48:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP49:%.*]] = load i32, ptr [[TMP48]], align 4
 ; IC-NEXT:    [[TMP50:%.*]] = load i32, ptr [[TMP0]], align 4
 ; IC-NEXT:    [[TMP51:%.*]] = icmp eq i32 [[TMP49]], [[TMP50]]
 ; IC-NEXT:    br i1 [[TMP51]], label [[BB20_I_I:%.*]], label [[BB21_I_I:%.*]]
 ; IC:       bb20.i.i:
-; IC-NEXT:    [[TMP52:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP52:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    br label [[_ZST4FINDIN9__GNU_CXX17__NORMAL_ITERATORIPIST6VECTORIISAIIEEEEIET_S7_S7_RKT0__EXIT]]
 ; IC:       bb21.i.i:
-; IC-NEXT:    [[TMP53:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP53:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP54:%.*]] = getelementptr i32, ptr [[TMP53]], i32 1
-; IC-NEXT:    store ptr [[TMP54]], ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    store ptr [[TMP54]], ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    br label [[BB22_I_I]]
 ; IC:       bb22.i.i:
-; IC-NEXT:    [[TMP55:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP55:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP56:%.*]] = load i32, ptr [[TMP55]], align 4
 ; IC-NEXT:    [[TMP57:%.*]] = load i32, ptr [[TMP0]], align 4
 ; IC-NEXT:    [[TMP58:%.*]] = icmp eq i32 [[TMP56]], [[TMP57]]
 ; IC-NEXT:    br i1 [[TMP58]], label [[BB24_I_I:%.*]], label [[BB25_I_I:%.*]]
 ; IC:       bb24.i.i:
-; IC-NEXT:    [[TMP59:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP59:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    br label [[_ZST4FINDIN9__GNU_CXX17__NORMAL_ITERATORIPIST6VECTORIISAIIEEEEIET_S7_S7_RKT0__EXIT]]
 ; IC:       bb25.i.i:
-; IC-NEXT:    [[TMP60:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP60:%.*]] = load ptr, ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    [[TMP61:%.*]] = getelementptr i32, ptr [[TMP60]], i32 1
-; IC-NEXT:    store ptr [[TMP61]], ptr [[__FIRST_ADDR_I_I]], align 8
+; IC-NEXT:    store ptr [[TMP61]], ptr [[__FIRST_ADDR_I_I]], align 4
 ; IC-NEXT:    br label [[BB26_I_I]]
 ; IC:       bb26.i.i:
-; IC-NEXT:    [[TMP62:%.*]] = load ptr, ptr [[__LAST_ADDR_I_I]], align 8
+; IC-NEXT:    [[TMP62:%.*]] = load ptr, ptr [[__LAST_ADDR_I_I]], align 4
 ; IC-NEXT:    br label [[_ZST4FINDIN9__GNU_CXX17__NORMAL_ITERATORIPIST6VECTORIISAIIEEEEIET_S7_S7_RKT0__EXIT]]
 ; IC:       _ZSt4findIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEiET_S7_S7_RKT0_.exit:
 ; IC-NEXT:    [[DOT0_0_I_I:%.*]] = phi ptr [ [[TMP62]], [[BB26_I_I]] ], [ [[TMP59]], [[BB24_I_I]] ], [ [[TMP52]], [[BB20_I_I]] ], [ [[TMP45]], [[BB16_I_I]] ], [ [[TMP30]], [[BB10_I_I]] ], [ [[TMP24]], [[BB7_I_I]] ], [ [[TMP18]], [[BB4_I_I]] ], [ [[TMP12]], [[BB1_I_I]] ]
 ; IC-NEXT:    br label [[RETURN:%.*]]
 ; IC:       return:
 ; IC-NEXT:    ret ptr [[DOT0_0_I_I]]
 ;
 ; IC_SROA-LABEL: @_Z3fooRSt6vectorIiSaIiEE(

llvm/test/Transforms/InstCombine/addrspacecast.ll

loop.body:
   br i1 %cmp, label %loop.body, label %end
 
 end:
   ret i32 %sum.inc
 }
 
 define void @constant_fold_null() #0 {
 ; CHECK-LABEL: @constant_fold_null(
-; CHECK-NEXT:    store i32 7, ptr addrspace(4) addrspacecast (ptr addrspace(3) null to ptr addrspace(4)), align 4294967296
+; CHECK-NEXT:    store i32 7, ptr addrspace(4) addrspacecast (ptr addrspace(3) null to ptr addrspace(4)), align 4
 ; CHECK-NEXT:    ret void
 ;
   %cast = addrspacecast ptr addrspace(3) null to ptr addrspace(4)
   store i32 7, ptr addrspace(4) %cast
   ret void
 }
 
 define ptr addrspace(4) @constant_fold_undef() #0 {

llvm/test/Transforms/InstCombine/align-2d-gep.ll

-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -passes=instcombine -S | FileCheck %s
-target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
-
-; A multi-dimensional array in a nested loop doing vector stores that
-; aren't yet aligned. Instcombine can understand the addressing in the
-; Nice case to prove 16 byte alignment. In the Awkward case, the inner
-; array dimension is not even, so the stores to it won't always be
-; aligned. Instcombine should prove alignment in exactly one of the two
-; stores.
-
-@Nice    = global [1001 x [20000 x double]] zeroinitializer, align 32
-@Awkward = global [1001 x [20001 x double]] zeroinitializer, align 32
-
-define void @foo() nounwind  {
-; CHECK-LABEL: @foo(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    br label [[BB7_OUTER:%.*]]
-; CHECK:       bb7.outer:
-; CHECK-NEXT:    [[I:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVAR_NEXT26:%.*]], [[BB11:%.*]] ]
-; CHECK-NEXT:    br label [[BB1:%.*]]
-; CHECK:       bb1:
-; CHECK-NEXT:    [[J:%.*]] = phi i64 [ 0, [[BB7_OUTER]] ], [ [[INDVAR_NEXT:%.*]], [[BB1]] ]
-; CHECK-NEXT:    [[T4:%.*]] = getelementptr [1001 x [20000 x double]], ptr @Nice, i64 0, i64 [[I]], i64 [[J]]
-; CHECK-NEXT:    store <2 x double> zeroinitializer, ptr [[T4]], align 16
-; CHECK-NEXT:    [[S4:%.*]] = getelementptr [1001 x [20001 x double]], ptr @Awkward, i64 0, i64 [[I]], i64 [[J]]
-; CHECK-NEXT:    store <2 x double> zeroinitializer, ptr [[S4]], align 8
-; CHECK-NEXT:    [[INDVAR_NEXT]] = add i64 [[J]], 2
-; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], 556
-; CHECK-NEXT:    br i1 [[EXITCOND]], label [[BB11]], label [[BB1]]
-; CHECK:       bb11:
-; CHECK-NEXT:    [[INDVAR_NEXT26]] = add i64 [[I]], 1
-; CHECK-NEXT:    [[EXITCOND27:%.*]] = icmp eq i64 [[INDVAR_NEXT26]], 991
-; CHECK-NEXT:    br i1 [[EXITCOND27]], label [[RETURN_SPLIT:%.*]], label [[BB7_OUTER]]
-; CHECK:       return.split:
-; CHECK-NEXT:    ret void
-;
-entry:
-  br label %bb7.outer
-
-bb7.outer:
-  %i = phi i64 [ 0, %entry ], [ %indvar.next26, %bb11 ]
-  br label %bb1
-
-bb1:
-  %j = phi i64 [ 0, %bb7.outer ], [ %indvar.next, %bb1 ]
-
-  %t4 = getelementptr [1001 x [20000 x double]], ptr @Nice, i64 0, i64 %i, i64 %j
-  store <2 x double><double 0.0, double 0.0>, ptr %t4, align 8
-
-  %s4 = getelementptr [1001 x [20001 x double]], ptr @Awkward, i64 0, i64 %i, i64 %j
-  store <2 x double><double 0.0, double 0.0>, ptr %s4, align 8
-
-  %indvar.next = add i64 %j, 2
-  %exitcond = icmp eq i64 %indvar.next, 556
-  br i1 %exitcond, label %bb11, label %bb1
-
-bb11:
-  %indvar.next26 = add i64 %i, 1
-  %exitcond27 = icmp eq i64 %indvar.next26, 991
-  br i1 %exitcond27, label %return.split, label %bb7.outer
-
-return.split:
-  ret void
-}

llvm/test/Transforms/InstCombine/align-addr.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -passes=instcombine -S | FileCheck %s
 target datalayout = "E-p:64:64:64-p1:32:32:32-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
 
-; Instcombine should be able to prove vector alignment in the
-; presence of a few mild address computation tricks.
-
 define void @test0(ptr %b, i64 %n, i64 %u, i64 %y) nounwind  {
 ; CHECK-LABEL: @test0(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[C:%.*]] = ptrtoint ptr [[B:%.*]] to i64
 ; CHECK-NEXT:    [[D:%.*]] = and i64 [[C]], -16
 ; CHECK-NEXT:    [[E:%.*]] = inttoptr i64 [[D]] to ptr
 ; CHECK-NEXT:    [[V:%.*]] = shl i64 [[U:%.*]], 1
 ; CHECK-NEXT:    [[Z:%.*]] = and i64 [[Y:%.*]], -2
 ; CHECK-NEXT:    [[T1421:%.*]] = icmp eq i64 [[N:%.*]], 0
 ; CHECK-NEXT:    br i1 [[T1421]], label [[RETURN:%.*]], label [[BB:%.*]]
 ; CHECK:       bb:
 ; CHECK-NEXT:    [[I:%.*]] = phi i64 [ [[INDVAR_NEXT:%.*]], [[BB]] ], [ 20, [[ENTRY:%.*]] ]
 ; CHECK-NEXT:    [[J:%.*]] = mul i64 [[I]], [[V]]
 ; CHECK-NEXT:    [[H:%.*]] = add i64 [[J]], [[Z]]
 ; CHECK-NEXT:    [[T8:%.*]] = getelementptr double, ptr [[E]], i64 [[H]]
-; CHECK-NEXT:    store <2 x double> zeroinitializer, ptr [[T8]], align 16
+; CHECK-NEXT:    store <2 x double> zeroinitializer, ptr [[T8]], align 8
 ; CHECK-NEXT:    [[INDVAR_NEXT]] = add i64 [[I]], 1
 ; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[N]]
 ; CHECK-NEXT:    br i1 [[EXITCOND]], label [[RETURN]], label [[BB]]
 ; CHECK:       return:
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %c = ptrtoint ptr %b to i64

 ; When we see a unaligned load from an insufficiently aligned global or
 ; alloca, increase the alignment of the load, turning it into an aligned load.
 
 @GLOBAL = internal global [4 x i32] zeroinitializer
 
 define <16 x i8> @test1(<2 x i64> %x) {
 ; CHECK-LABEL: @test1(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP:%.*]] = load <16 x i8>, ptr @GLOBAL, align 16
+; CHECK-NEXT:    [[TMP:%.*]] = load <16 x i8>, ptr @GLOBAL, align 1
 ; CHECK-NEXT:    ret <16 x i8> [[TMP]]
 ;
 entry:
   %tmp = load <16 x i8>, ptr @GLOBAL, align 1
   ret <16 x i8> %tmp
 }
 
 @GLOBAL_as1 = internal addrspace(1) global [4 x i32] zeroinitializer
 
 define <16 x i8> @test1_as1(<2 x i64> %x) {
 ; CHECK-LABEL: @test1_as1(
-; CHECK-NEXT:    [[TMP:%.*]] = load <16 x i8>, ptr addrspace(1) @GLOBAL_as1, align 16
+; CHECK-NEXT:    [[TMP:%.*]] = load <16 x i8>, ptr addrspace(1) @GLOBAL_as1, align 1
 ; CHECK-NEXT:    ret <16 x i8> [[TMP]]
 ;
   %tmp = load <16 x i8>, ptr addrspace(1) @GLOBAL_as1, align 1
   ret <16 x i8> %tmp
 }
 
 @GLOBAL_as1_gep = internal addrspace(1) global [8 x i32] zeroinitializer
 
 define <16 x i8> @test1_as1_gep(<2 x i64> %x) {
 ; CHECK-LABEL: @test1_as1_gep(
-; CHECK-NEXT:    [[TMP:%.*]] = load <16 x i8>, ptr addrspace(1) getelementptr inbounds ([8 x i32], ptr addrspace(1) @GLOBAL_as1_gep, i32 0, i32 4), align 16
+; CHECK-NEXT:    [[TMP:%.*]] = load <16 x i8>, ptr addrspace(1) getelementptr inbounds ([8 x i32], ptr addrspace(1) @GLOBAL_as1_gep, i32 0, i32 4), align 1
 ; CHECK-NEXT:    ret <16 x i8> [[TMP]]
 ;
   %tmp = load <16 x i8>, ptr addrspace(1) getelementptr ([8 x i32], ptr addrspace(1) @GLOBAL_as1_gep, i16 0, i16 4), align 1
   ret <16 x i8> %tmp
 }
 
 
 ; When a load or store lacks an explicit alignment, add one.
;
   %aligned = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 %mask)
   %load = load <16 x i8>, ptr %aligned, align 1
   ret <16 x i8> %load
 }
 
 define <16 x i8> @ptrmask_align_unknown_ptr_align8(ptr align 8 %ptr, i64 %mask) {
 ; CHECK-LABEL: @ptrmask_align_unknown_ptr_align8(
 ; CHECK-NEXT:    [[ALIGNED:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR:%.*]], i64 [[MASK:%.*]])
-; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 8
+; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 1
 ; CHECK-NEXT:    ret <16 x i8> [[LOAD]]
 ;
   %aligned = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 %mask)
   %load = load <16 x i8>, ptr %aligned, align 1
   ret <16 x i8> %load
 }
 
 ; Increase load align from 1 to 2
 define <16 x i8> @ptrmask_align2_ptr_align1(ptr align 1 %ptr) {
 ; CHECK-LABEL: @ptrmask_align2_ptr_align1(
 ; CHECK-NEXT:    [[ALIGNED:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR:%.*]], i64 -2)
-; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 2
+; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 1
 ; CHECK-NEXT:    ret <16 x i8> [[LOAD]]
 ;
   %aligned = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 -2)
   %load = load <16 x i8>, ptr %aligned, align 1
   ret <16 x i8> %load
 }
 
 ; Increase load align from 1 to 4
 define <16 x i8> @ptrmask_align4_ptr_align1(ptr align 1 %ptr) {
 ; CHECK-LABEL: @ptrmask_align4_ptr_align1(
 ; CHECK-NEXT:    [[ALIGNED:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR:%.*]], i64 -4)
-; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 4
+; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 1
 ; CHECK-NEXT:    ret <16 x i8> [[LOAD]]
 ;
   %aligned = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 -4)
   %load = load <16 x i8>, ptr %aligned, align 1
   ret <16 x i8> %load
 }
 
 ; Increase load align from 1 to 8
 define <16 x i8> @ptrmask_align8_ptr_align1(ptr align 1 %ptr) {
 ; CHECK-LABEL: @ptrmask_align8_ptr_align1(
 ; CHECK-NEXT:    [[ALIGNED:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR:%.*]], i64 -8)
-; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 8
+; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 1
 ; CHECK-NEXT:    ret <16 x i8> [[LOAD]]
 ;
   %aligned = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 -8)
   %load = load <16 x i8>, ptr %aligned, align 1
   ret <16 x i8> %load
 }
 
 ; Underlying alignment already the same as forced alignment by ptrmask
 ; TODO: Should be able to drop the ptrmask
 define <16 x i8> @ptrmask_align8_ptr_align8(ptr align 8 %ptr) {
 ; CHECK-LABEL: @ptrmask_align8_ptr_align8(
 ; CHECK-NEXT:    [[ALIGNED:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR:%.*]], i64 -8)
-; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 8
+; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 1
 ; CHECK-NEXT:    ret <16 x i8> [[LOAD]]
 ;
   %aligned = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 -8)
   %load = load <16 x i8>, ptr %aligned, align 1
   ret <16 x i8> %load
 }
 
 ; Underlying alignment greater than alignment forced by ptrmask
 ; TODO: Should be able to drop the ptrmask
 define <16 x i8> @ptrmask_align8_ptr_align16(ptr align 16 %ptr) {
 ; CHECK-LABEL: @ptrmask_align8_ptr_align16(
 ; CHECK-NEXT:    [[ALIGNED:%.*]] = call ptr @llvm.ptrmask.p0.i64(ptr [[PTR:%.*]], i64 -8)
-; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 16
+; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 1
 ; CHECK-NEXT:    ret <16 x i8> [[LOAD]]
 ;
   %aligned = call ptr @llvm.ptrmask.p0.i64(ptr %ptr, i64 -8)
   %load = load <16 x i8>, ptr %aligned, align 1
   ret <16 x i8> %load
 }
 
 ; Increase load align from 1 to 8, and the mask type is smaller
 ; than the pointer size.
 define <16 x i8> @ptrmask_align8_ptr_align1_smallmask(ptr align 1 %ptr) {
 ; CHECK-LABEL: @ptrmask_align8_ptr_align1_smallmask(
 ; CHECK-NEXT:    [[ALIGNED:%.*]] = call ptr @llvm.ptrmask.p0.i32(ptr [[PTR:%.*]], i32 -8)
-; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 8
+; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 1
 ; CHECK-NEXT:    ret <16 x i8> [[LOAD]]
 ;
   %aligned = call ptr @llvm.ptrmask.p0.i32(ptr %ptr, i32 -8)
   %load = load <16 x i8>, ptr %aligned, align 1
   ret <16 x i8> %load
 }
 
 ; Increase load align from 1 to 8, and the mask type is larger
 ; than the pointer size.
 define <16 x i8> @ptrmask_align8_ptr_align1_bigmask(ptr align 1 %ptr) {
 ; CHECK-LABEL: @ptrmask_align8_ptr_align1_bigmask(
 ; CHECK-NEXT:    [[ALIGNED:%.*]] = call ptr @llvm.ptrmask.p0.i128(ptr [[PTR:%.*]], i128 -8)
-; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 8
+; CHECK-NEXT:    [[LOAD:%.*]] = load <16 x i8>, ptr [[ALIGNED]], align 1
 ; CHECK-NEXT:    ret <16 x i8> [[LOAD]]
 ;
   %aligned = call ptr @llvm.ptrmask.p0.i128(ptr %ptr, i128 -8)
   %load = load <16 x i8>, ptr %aligned, align 1
   ret <16 x i8> %load
 }

llvm/test/Transforms/InstCombine/align-attr.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -passes=instcombine -S | FileCheck %s
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"
 
 ; Function Attrs: nounwind uwtable
 define i32 @foo1(ptr align 32 %a) #0 {
 ; CHECK-LABEL: @foo1(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[A:%.*]], align 32
+; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[A:%.*]], align 4
 ; CHECK-NEXT:    ret i32 [[TMP0]]
 ;
 entry:
   %0 = load i32, ptr %a, align 4
   ret i32 %0
 
 }
 
 define i32 @foo2(ptr align 32 %a) #0 {
 ; CHECK-LABEL: @foo2(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[V:%.*]] = call ptr @func1(ptr [[A:%.*]])
-; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[A]], align 32
+; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[A]], align 4
 ; CHECK-NEXT:    ret i32 [[TMP0]]
 ;
 entry:
   %v = call ptr @func1(ptr %a)
   %0 = load i32, ptr %v, align 4
   ret i32 %0
 
 }
 
 declare ptr @func1(ptr returned) nounwind
 

llvm/test/Transforms/InstCombine/alloca-cast-debuginfo.ll

 target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-pc-windows-msvc19.11.25508"
 
 %struct.Foo = type { i32, i32 }
 
 define void @f(ptr %p) !dbg !11 {
 ; CHECK-LABEL: @f(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[LOCAL:%.*]] = alloca [[STRUCT_FOO:%.*]], align 8
+; CHECK-NEXT:    [[LOCAL:%.*]] = alloca [[STRUCT_FOO:%.*]], align 4
 ; CHECK-NEXT:    call void @llvm.dbg.declare(metadata ptr [[LOCAL]], metadata [[META22:![0-9]+]], metadata !DIExpression()), !dbg [[DBG23:![0-9]+]]
 ; CHECK-NEXT:    [[TMP0:%.*]] = load i64, ptr [[P:%.*]], align 8, !dbg [[DBG24:![0-9]+]], !tbaa [[TBAA25:![0-9]+]]
-; CHECK-NEXT:    store i64 [[TMP0]], ptr [[LOCAL]], align 8, !dbg [[DBG29:![0-9]+]], !tbaa [[TBAA25]]
+; CHECK-NEXT:    store i64 [[TMP0]], ptr [[LOCAL]], align 4, !dbg [[DBG29:![0-9]+]], !tbaa [[TBAA25]]
 ; CHECK-NEXT:    call void @escape(ptr nonnull [[LOCAL]]), !dbg [[DBG30:![0-9]+]]
 ; CHECK-NEXT:    ret void, !dbg [[DBG31:![0-9]+]]
 ;
 entry:
   %local = alloca %struct.Foo, align 4
   call void @llvm.dbg.declare(metadata ptr %local, metadata !22, metadata !DIExpression()), !dbg !25
   %0 = load i64, ptr %p, align 8, !dbg !26, !tbaa !27
   store i64 %0, ptr %local, align 4, !dbg !32, !tbaa !27

llvm/test/Transforms/InstCombine/alloca.ll

 ; P32-NEXT:    store volatile i32 123, ptr [[A]], align 4
 ; P32-NEXT:    tail call void @f(ptr nonnull [[B]])
 ; P32-NEXT:    ret void
 ;
 ; NODL-LABEL: @test6(
 ; NODL-NEXT:  entry:
 ; NODL-NEXT:    [[A:%.*]] = alloca { i32 }, align 8
 ; NODL-NEXT:    [[B:%.*]] = alloca i32, align 4
-; NODL-NEXT:    store volatile i32 123, ptr [[A]], align 8
+; NODL-NEXT:    store volatile i32 123, ptr [[A]], align 4
 ; NODL-NEXT:    tail call void @f(ptr nonnull [[B]])
 ; NODL-NEXT:    ret void
 ;
 
 entry:
   %a = alloca { i32 }
   %b = alloca i32
   store volatile i32 123, ptr %a

 
 ; PR19569
 %struct_type = type { i32, i32 }
 declare void @test9_aux(ptr inalloca(<{ %struct_type }>))
 declare ptr @llvm.stacksave()
 declare void @llvm.stackrestore(ptr)
 
 define void @test9(ptr %a) {
-; ALL-LABEL: @test9(
-; ALL-NEXT:  entry:
-; ALL-NEXT:    [[ARGMEM:%.*]] = alloca inalloca <{ [[STRUCT_TYPE:%.*]] }>, align 8
-; ALL-NEXT:    [[TMP0:%.*]] = load i64, ptr [[A:%.*]], align 4
-; ALL-NEXT:    store i64 [[TMP0]], ptr [[ARGMEM]], align 8
-; ALL-NEXT:    call void @test9_aux(ptr nonnull inalloca(<{ [[STRUCT_TYPE]] }>) [[ARGMEM]])
-; ALL-NEXT:    ret void
+; CHECK-LABEL: @test9(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[ARGMEM:%.*]] = alloca inalloca <{ [[STRUCT_TYPE:%.*]] }>, align 1
+; CHECK-NEXT:    [[TMP0:%.*]] = load i64, ptr [[A:%.*]], align 4
+; CHECK-NEXT:    store i64 [[TMP0]], ptr [[ARGMEM]], align 4
+; CHECK-NEXT:    call void @test9_aux(ptr nonnull inalloca(<{ [[STRUCT_TYPE]] }>) [[ARGMEM]])
+; CHECK-NEXT:    ret void
+;
+; P32-LABEL: @test9(
+; P32-NEXT:  entry:
+; P32-NEXT:    [[ARGMEM:%.*]] = alloca inalloca <{ [[STRUCT_TYPE:%.*]] }>, align 1
+; P32-NEXT:    [[TMP0:%.*]] = load i64, ptr [[A:%.*]], align 4
+; P32-NEXT:    store i64 [[TMP0]], ptr [[ARGMEM]], align 4
+; P32-NEXT:    call void @test9_aux(ptr nonnull inalloca(<{ [[STRUCT_TYPE]] }>) [[ARGMEM]])
+; P32-NEXT:    ret void
+;
+; NODL-LABEL: @test9(
+; NODL-NEXT:  entry:
+; NODL-NEXT:    [[ARGMEM:%.*]] = alloca inalloca <{ [[STRUCT_TYPE:%.*]] }>, align 8
+; NODL-NEXT:    [[TMP0:%.*]] = load i64, ptr [[A:%.*]], align 4
+; NODL-NEXT:    store i64 [[TMP0]], ptr [[ARGMEM]], align 8
+; NODL-NEXT:    call void @test9_aux(ptr nonnull inalloca(<{ [[STRUCT_TYPE]] }>) [[ARGMEM]])
+; NODL-NEXT:    ret void
 ;
 entry:
   %inalloca.save = call ptr @llvm.stacksave()
   %argmem = alloca inalloca <{ %struct_type }>
   call void @llvm.memcpy.p0.p0.i32(ptr align 4 %argmem, ptr align 4 %a, i32 8, i1 false)
   call void @test9_aux(ptr inalloca(<{ %struct_type }>) %argmem)
   call void @llvm.stackrestore(ptr %inalloca.save)
   ret void

llvm/test/Transforms/InstCombine/apint-shift.ll

;
   ret i40 %D
 }
 
 ; OSS-Fuzz #9880
 ; https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9880
 define i177 @ossfuzz_9880(i177 %X) {
 ; CHECK-LABEL: @ossfuzz_9880(
 ; CHECK-NEXT:    [[A:%.*]] = alloca i177, align 8
-; CHECK-NEXT:    [[L1:%.*]] = load i177, ptr [[A]], align 8
+; CHECK-NEXT:    [[L1:%.*]] = load i177, ptr [[A]], align 4
 ; CHECK-NEXT:    [[TMP1:%.*]] = icmp eq i177 [[L1]], -1
 ; CHECK-NEXT:    [[B5_NEG:%.*]] = sext i1 [[TMP1]] to i177
 ; CHECK-NEXT:    [[B14:%.*]] = add i177 [[L1]], [[B5_NEG]]
 ; CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i177 [[B14]], -1
 ; CHECK-NEXT:    [[B1:%.*]] = zext i1 [[TMP2]] to i177
 ; CHECK-NEXT:    ret i177 [[B1]]
 ;
   %A = alloca i177

llvm/test/Transforms/InstCombine/assume-align.ll

 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    call void @llvm.assume(i1 true) [ "align"(ptr [[A:%.*]], i64 32, i32 24) ]
 ; CHECK-NEXT:    [[TMP0:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 8
 ; CHECK-NEXT:    [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i64
 ; CHECK-NEXT:    [[TMP2:%.*]] = and i64 [[TMP1]], 8
 ; CHECK-NEXT:    [[TMP3:%.*]] = icmp eq i64 [[TMP2]], 0
 ; CHECK-NEXT:    br i1 [[TMP3]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
 ; CHECK:       if.then:
-; CHECK-NEXT:    store i64 16, ptr [[TMP0]], align 8
+; CHECK-NEXT:    store i64 16, ptr [[TMP0]], align 4
 ; CHECK-NEXT:    br label [[IF_END:%.*]]
 ; CHECK:       if.else:
-; CHECK-NEXT:    store i8 1, ptr [[TMP0]], align 8
+; CHECK-NEXT:    store i8 1, ptr [[TMP0]], align 1
 ; CHECK-NEXT:    br label [[IF_END]]
 ; CHECK:       if.end:
 ; CHECK-NEXT:    ret void
 ;
 entry:
   call void @llvm.assume(i1 true) [ "align"(ptr %a, i64 32, i32 24) ]
   %0 = getelementptr inbounds i8, ptr %a, i64 8
   %1 = ptrtoint ptr %0 to i64

llvm/test/Transforms/InstCombine/assume-loop-align.ll

 ; CHECK-NEXT:    [[PTRINT1:%.*]] = ptrtoint ptr [[B:%.*]] to i64
 ; CHECK-NEXT:    [[MASKEDPTR2:%.*]] = and i64 [[PTRINT1]], 63
 ; CHECK-NEXT:    [[MASKCOND3:%.*]] = icmp eq i64 [[MASKEDPTR2]], 0
 ; CHECK-NEXT:    tail call void @llvm.assume(i1 [[MASKCOND3]])
 ; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
 ; CHECK:       for.body:
 ; CHECK-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
 ; CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[INDVARS_IV]]
-; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[ARRAYIDX]], align 64
+; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[ARRAYIDX]], align 4
 ; CHECK-NEXT:    [[ADD:%.*]] = add nsw i32 [[TMP0]], 1
 ; CHECK-NEXT:    [[ARRAYIDX5:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV]]
-; CHECK-NEXT:    store i32 [[ADD]], ptr [[ARRAYIDX5]], align 64
+; CHECK-NEXT:    store i32 [[ADD]], ptr [[ARRAYIDX5]], align 4
 ; CHECK-NEXT:    [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 16
 ; CHECK-NEXT:    [[TMP1:%.*]] = trunc i64 [[INDVARS_IV_NEXT]] to i32
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 [[TMP1]], 1648
 ; CHECK-NEXT:    br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END:%.*]]
 ; CHECK:       for.end:
 ; CHECK-NEXT:    ret void
 ;
 entry:

llvm/test/Transforms/InstCombine/assume.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -passes=instcombine -S  -instcombine-infinite-loop-threshold=2  | FileCheck --check-prefixes=CHECK,DEFAULT %s
 ; RUN: opt < %s -passes=instcombine --enable-knowledge-retention -S  -instcombine-infinite-loop-threshold=2  | FileCheck --check-prefixes=CHECK,BUNDLES %s
 
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"
 
 declare void @llvm.assume(i1) #1
 
-; Check that the alignment has been upgraded and that the assume has not
-; been removed:
+; Check that the assume has not been removed:
 
 define i32 @foo1(ptr %a) #0 {
 ; DEFAULT-LABEL: @foo1(
-; DEFAULT-NEXT:    [[T0:%.*]] = load i32, ptr [[A:%.*]], align 32
+; DEFAULT-NEXT:    [[T0:%.*]] = load i32, ptr [[A:%.*]], align 4
 ; DEFAULT-NEXT:    [[PTRINT:%.*]] = ptrtoint ptr [[A]] to i64
 ; DEFAULT-NEXT:    [[MASKEDPTR:%.*]] = and i64 [[PTRINT]], 31
 ; DEFAULT-NEXT:    [[MASKCOND:%.*]] = icmp eq i64 [[MASKEDPTR]], 0
 ; DEFAULT-NEXT:    tail call void @llvm.assume(i1 [[MASKCOND]])
 ; DEFAULT-NEXT:    ret i32 [[T0]]
 ;
 ; BUNDLES-LABEL: @foo1(
-; BUNDLES-NEXT:    [[T0:%.*]] = load i32, ptr [[A:%.*]], align 32
+; BUNDLES-NEXT:    [[T0:%.*]] = load i32, ptr [[A:%.*]], align 4
 ; BUNDLES-NEXT:    call void @llvm.assume(i1 true) [ "align"(ptr [[A]], i64 32) ]
 ; BUNDLES-NEXT:    ret i32 [[T0]]
 ;
   %t0 = load i32, ptr %a, align 4
   %ptrint = ptrtoint ptr %a to i64
   %maskedptr = and i64 %ptrint, 31
   %maskcond = icmp eq i64 %maskedptr, 0
   tail call void @llvm.assume(i1 %maskcond)
   ret i32 %t0
 }
 
 ; Same check as in @foo1, but make sure it works if the assume is first too.
 
 define i32 @foo2(ptr %a) #0 {
 ; DEFAULT-LABEL: @foo2(
 ; DEFAULT-NEXT:    [[PTRINT:%.*]] = ptrtoint ptr [[A:%.*]] to i64
 ; DEFAULT-NEXT:    [[MASKEDPTR:%.*]] = and i64 [[PTRINT]], 31
 ; DEFAULT-NEXT:    [[MASKCOND:%.*]] = icmp eq i64 [[MASKEDPTR]], 0
 ; DEFAULT-NEXT:    tail call void @llvm.assume(i1 [[MASKCOND]])
-; DEFAULT-NEXT:    [[T0:%.*]] = load i32, ptr [[A]], align 32
+; DEFAULT-NEXT:    [[T0:%.*]] = load i32, ptr [[A]], align 4
 ; DEFAULT-NEXT:    ret i32 [[T0]]
 ;
 ; BUNDLES-LABEL: @foo2(
 ; BUNDLES-NEXT:    call void @llvm.assume(i1 true) [ "align"(ptr [[A:%.*]], i64 32) ]
-; BUNDLES-NEXT:    [[T0:%.*]] = load i32, ptr [[A]], align 32
+; BUNDLES-NEXT:    [[T0:%.*]] = load i32, ptr [[A]], align 4
 ; BUNDLES-NEXT:    ret i32 [[T0]]
 ;
   %ptrint = ptrtoint ptr %a to i64
   %maskedptr = and i64 %ptrint, 31
   %maskcond = icmp eq i64 %maskedptr, 0
   tail call void @llvm.assume(i1 %maskcond)
   %t0 = load i32, ptr %a, align 4
   ret i32 %t0

 ;
   tail call void @llvm.assume(i1 true) ["ignore"(ptr undef)]
   %load = load i32, ptr %P
   ret i32 %load
 }
 
 define i1 @nonnull1(ptr %a) {
 ; CHECK-LABEL: @nonnull1(
-; CHECK-NEXT:    [[LOAD:%.*]] = load ptr, ptr [[A:%.*]], align 8, !nonnull [[META6:![0-9]+]], !noundef [[META6]]
+; CHECK-NEXT:    [[LOAD:%.*]] = load ptr, ptr [[A:%.*]], align 8, !nonnull !6, !noundef !6
 ; CHECK-NEXT:    tail call void @escape(ptr nonnull [[LOAD]])
 ; CHECK-NEXT:    ret i1 false
 ;
   %load = load ptr, ptr %a
   %cmp = icmp ne ptr %load, null
   tail call void @llvm.assume(i1 %cmp)
   tail call void @escape(ptr %load)
   %rval = icmp eq ptr %load, null

llvm/test/Transforms/InstCombine/assume_inevitable.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -passes=instcombine -S | FileCheck %s
 
 ; Check that assume is propagated backwards through all
 ; operations that are `isGuaranteedToTransferExecutionToSuccessor`
-; (it should reach the load and mark it as `align 32`).
 define i32 @assume_inevitable(ptr %a, ptr %b, ptr %c) {
 ; CHECK-LABEL: @assume_inevitable(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[M:%.*]] = alloca i64, align 8
-; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[A:%.*]], align 32
+; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[A:%.*]], align 4
 ; CHECK-NEXT:    [[LOADRES:%.*]] = load i32, ptr [[B:%.*]], align 4
 ; CHECK-NEXT:    [[LOADRES2:%.*]] = call i32 @llvm.annotation.i32.p0(i32 [[LOADRES]], ptr nonnull @.str, ptr nonnull @.str1, i32 2)
-; CHECK-NEXT:    store i32 [[LOADRES2]], ptr [[A]], align 32
+; CHECK-NEXT:    store i32 [[LOADRES2]], ptr [[A]], align 4
 ; CHECK-NEXT:    [[DUMMY_EQ:%.*]] = icmp ugt i32 [[LOADRES]], 42
 ; CHECK-NEXT:    tail call void @llvm.assume(i1 [[DUMMY_EQ]])
 ; CHECK-NEXT:    [[M_A:%.*]] = call ptr @llvm.ptr.annotation.p0.p0(ptr nonnull [[M]], ptr nonnull @.str, ptr nonnull @.str1, i32 2, ptr null)
 ; CHECK-NEXT:    [[OBJSZ:%.*]] = call i64 @llvm.objectsize.i64.p0(ptr [[C:%.*]], i1 false, i1 false, i1 false)
 ; CHECK-NEXT:    store i64 [[OBJSZ]], ptr [[M_A]], align 4
 ; CHECK-NEXT:    [[PTRINT:%.*]] = ptrtoint ptr [[A]] to i64
 ; CHECK-NEXT:    [[MASKEDPTR:%.*]] = and i64 [[PTRINT]], 31
 ; CHECK-NEXT:    [[MASKCOND:%.*]] = icmp eq i64 [[MASKEDPTR]], 0

llvm/test/Transforms/InstCombine/atomic.ll

 ; CHECK-NEXT:    ret i32 poison
 ;
   %x = load atomic i32, ptr null unordered, align 4
   ret i32 %x
 }
 
 define i32 @test9_no_null_opt() #0 {
 ; CHECK-LABEL: @test9_no_null_opt(
-; CHECK-NEXT:    [[X:%.*]] = load atomic i32, ptr null unordered, align 4294967296
+; CHECK-NEXT:    [[X:%.*]] = load atomic i32, ptr null unordered, align 4
 ; CHECK-NEXT:    ret i32 [[X]]
 ;
   %x = load atomic i32, ptr null unordered, align 4
   ret i32 %x
 }
 
 ; FIXME: Could also fold
 define i32 @test10() {
 ; CHECK-LABEL: @test10(
-; CHECK-NEXT:    [[X:%.*]] = load atomic i32, ptr null monotonic, align 4294967296
+; CHECK-NEXT:    [[X:%.*]] = load atomic i32, ptr null monotonic, align 4
 ; CHECK-NEXT:    ret i32 [[X]]
 ;
   %x = load atomic i32, ptr null monotonic, align 4
   ret i32 %x
 }
 
 define i32 @test10_no_null_opt() #0 {
 ; CHECK-LABEL: @test10_no_null_opt(
-; CHECK-NEXT:    [[X:%.*]] = load atomic i32, ptr null monotonic, align 4294967296
+; CHECK-NEXT:    [[X:%.*]] = load atomic i32, ptr null monotonic, align 4
 ; CHECK-NEXT:    ret i32 [[X]]
 ;
   %x = load atomic i32, ptr null monotonic, align 4
   ret i32 %x
 }
 
 ; Would this be legal to fold?  Probably?
 define i32 @test11() {
 ; CHECK-LABEL: @test11(
-; CHECK-NEXT:    [[X:%.*]] = load atomic i32, ptr null seq_cst, align 4294967296
+; CHECK-NEXT:    [[X:%.*]] = load atomic i32, ptr null seq_cst, align 4
 ; CHECK-NEXT:    ret i32 [[X]]
 ;
   %x = load atomic i32, ptr null seq_cst, align 4
   ret i32 %x
 }
 
 define i32 @test11_no_null_opt() #0 {
 ; CHECK-LABEL: @test11_no_null_opt(
-; CHECK-NEXT:    [[X:%.*]] = load atomic i32, ptr null seq_cst, align 4294967296
+; CHECK-NEXT:    [[X:%.*]] = load atomic i32, ptr null seq_cst, align 4
 ; CHECK-NEXT:    ret i32 [[X]]
 ;
   %x = load atomic i32, ptr null seq_cst, align 4
   ret i32 %x
 }
 
 ; An unordered access to null is still unreachable.  There's no
 ; ordering imposed.
 define i32 @test12() {
 ; CHECK-LABEL: @test12(
-; CHECK-NEXT:    store atomic i32 poison, ptr null unordered, align 4294967296
+; CHECK-NEXT:    store atomic i32 poison, ptr null unordered, align 4
 ; CHECK-NEXT:    ret i32 0
 ;
   store atomic i32 0, ptr null unordered, align 4
   ret i32 0
 }
 
 define i32 @test12_no_null_opt() #0 {
 ; CHECK-LABEL: @test12_no_null_opt(
-; CHECK-NEXT:    store atomic i32 0, ptr null unordered, align 4294967296
+; CHECK-NEXT:    store atomic i32 0, ptr null unordered, align 4
 ; CHECK-NEXT:    ret i32 0
 ;
   store atomic i32 0, ptr null unordered, align 4
   ret i32 0
 }
 
 ; FIXME: Could also fold
 define i32 @test13() {
 ; CHECK-LABEL: @test13(
-; CHECK-NEXT:    store atomic i32 0, ptr null monotonic, align 4294967296
+; CHECK-NEXT:    store atomic i32 0, ptr null monotonic, align 4
 ; CHECK-NEXT:    ret i32 0
 ;
   store atomic i32 0, ptr null monotonic, align 4
   ret i32 0
 }
 
 define i32 @test13_no_null_opt() #0 {
 ; CHECK-LABEL: @test13_no_null_opt(
-; CHECK-NEXT:    store atomic i32 0, ptr null monotonic, align 4294967296
+; CHECK-NEXT:    store atomic i32 0, ptr null monotonic, align 4
 ; CHECK-NEXT:    ret i32 0
 ;
   store atomic i32 0, ptr null monotonic, align 4
   ret i32 0
 }
 
 ; Would this be legal to fold?  Probably?
 define i32 @test14() {
 ; CHECK-LABEL: @test14(
-; CHECK-NEXT:    store atomic i32 0, ptr null seq_cst, align 4294967296
+; CHECK-NEXT:    store atomic i32 0, ptr null seq_cst, align 4
 ; CHECK-NEXT:    ret i32 0
 ;
   store atomic i32 0, ptr null seq_cst, align 4
   ret i32 0
 }
 
 define i32 @test14_no_null_opt() #0 {
 ; CHECK-LABEL: @test14_no_null_opt(
-; CHECK-NEXT:    store atomic i32 0, ptr null seq_cst, align 4294967296
+; CHECK-NEXT:    store atomic i32 0, ptr null seq_cst, align 4
 ; CHECK-NEXT:    ret i32 0
 ;
   store atomic i32 0, ptr null seq_cst, align 4
   ret i32 0
 }
 
 @a = external global i32
 @b = external global i32

llvm/test/Transforms/InstCombine/constant-fold-address-space-pointer.ll

 ; CHECK-NEXT:    ret i32 [[A]]
 ;
   %a = load i32, ptr addrspace(3) @g_float_as3, align 4
   ret i32 %a
 }
 
 define <4 x float> @constant_fold_bitcast_vector_as() {
 ; CHECK-LABEL: @constant_fold_bitcast_vector_as(
-; CHECK-NEXT:    [[A:%.*]] = load <4 x float>, ptr addrspace(3) @g_v4f_as3, align 16
+; CHECK-NEXT:    [[A:%.*]] = load <4 x float>, ptr addrspace(3) @g_v4f_as3, align 4
 ; CHECK-NEXT:    ret <4 x float> [[A]]
 ;
   %a = load <4 x float>, ptr addrspace(3) @g_v4f_as3, align 4
   ret <4 x float> %a
 }
 
 @i32_array_as3 = addrspace(3) global [10 x i32] zeroinitializer
 
 define i32 @test_cast_gep_small_indices_as() {
 ; CHECK-LABEL: @test_cast_gep_small_indices_as(
-; CHECK-NEXT:    [[X:%.*]] = load i32, ptr addrspace(3) @i32_array_as3, align 16
+; CHECK-NEXT:    [[X:%.*]] = load i32, ptr addrspace(3) @i32_array_as3, align 4
 ; CHECK-NEXT:    ret i32 [[X]]
 ;
   %x = load i32, ptr addrspace(3) @i32_array_as3, align 4
   ret i32 %x
 }
 
 %struct.foo = type { float, float, [4 x i32], ptr addrspace(3) }
 
 @constant_fold_global_ptr = addrspace(3) global %struct.foo {
   float 0.0,
   float 0.0,
   [4 x i32] zeroinitializer,
   ptr addrspace(3) @i32_array_as3
 }
 
 define i32 @test_cast_gep_large_indices_as() {
 ; CHECK-LABEL: @test_cast_gep_large_indices_as(
-; CHECK-NEXT:    [[X:%.*]] = load i32, ptr addrspace(3) @i32_array_as3, align 16
+; CHECK-NEXT:    [[X:%.*]] = load i32, ptr addrspace(3) @i32_array_as3, align 4
 ; CHECK-NEXT:    ret i32 [[X]]
 ;
   %x = load i32, ptr addrspace(3) @i32_array_as3, align 4
   ret i32 %x
 }
 
 define i32 @test_constant_cast_gep_struct_indices_as() {
 ; CHECK-LABEL: @test_constant_cast_gep_struct_indices_as(
-; CHECK-NEXT:    [[Y:%.*]] = load i32, ptr addrspace(3) getelementptr inbounds ([[STRUCT_FOO:%.*]], ptr addrspace(3) @constant_fold_global_ptr, i16 0, i32 2, i16 2), align 16
+; CHECK-NEXT:    [[Y:%.*]] = load i32, ptr addrspace(3) getelementptr inbounds ([[STRUCT_FOO:%.*]], ptr addrspace(3) @constant_fold_global_ptr, i16 0, i32 2, i16 2), align 4
 ; CHECK-NEXT:    ret i32 [[Y]]
 ;
   %x = getelementptr %struct.foo, ptr addrspace(3) @constant_fold_global_ptr, i18 0, i32 2, i12 2
   %y = load i32, ptr addrspace(3) %x, align 4
   ret i32 %y
 }
 
 @constant_data_as3 = addrspace(3) constant [5 x i32] [i32 1, i32 2, i32 3, i32 4, i32 5]

llvm/test/Transforms/InstCombine/constant-fold-gep.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -passes='require<loops>,instcombine' -S | FileCheck %s
 target datalayout = "E-p:64:64:64-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64"
 
 ; Constant folding should fix notionally out-of-bounds indices
 ; and add inbounds keywords.
 
 %struct.X = type { [3 x i32], [3 x i32] }
 
 @Y = internal global [3 x %struct.X] zeroinitializer
 
 define void @frob() {
 ; CHECK-LABEL: @frob(
-; CHECK-NEXT:    store i32 1, ptr @Y, align 16
+; CHECK-NEXT:    store i32 1, ptr @Y, align 4
 ; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 0, i32 0, i64 1), align 4
-; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 0, i32 0, i64 2), align 8
+; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 0, i32 0, i64 2), align 4
 ; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 0, i32 1, i64 0), align 4
-; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 0, i32 1, i64 1), align 16
+; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 0, i32 1, i64 1), align 4
 ; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 0, i32 1, i64 2), align 4
-; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 1, i32 0, i64 0), align 8
+; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 1, i32 0, i64 0), align 4
 ; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 1, i32 0, i64 1), align 4
-; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 1, i32 0, i64 2), align 16
+; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 1, i32 0, i64 2), align 4
 ; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 1, i32 1, i64 0), align 4
-; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 1, i32 1, i64 1), align 8
+; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 1, i32 1, i64 1), align 4
 ; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 1, i32 1, i64 2), align 4
-; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 2, i32 0, i64 0), align 16
+; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 2, i32 0, i64 0), align 4
 ; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 2, i32 0, i64 1), align 4
 ; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 2, i32 0, i64 2), align 8
 ; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 2, i32 1, i64 0), align 4
-; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 2, i32 1, i64 1), align 16
+; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 2, i32 1, i64 1), align 8
 ; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 2, i32 1, i64 2), align 4
 ; CHECK-NEXT:    store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 1, i64 0, i32 0, i64 0), align 8
-; CHECK-NEXT:    store i32 1, ptr getelementptr ([3 x %struct.X], ptr @Y, i64 2, i64 0, i32 0, i64 0), align 16
+; CHECK-NEXT:    store i32 1, ptr getelementptr ([3 x %struct.X], ptr @Y, i64 2, i64 0, i32 0, i64 0), align 8
 ; CHECK-NEXT:    store i32 1, ptr getelementptr ([3 x %struct.X], ptr @Y, i64 1, i64 0, i32 0, i64 1), align 8
 ; CHECK-NEXT:    ret void
 ;
   store i32 1, ptr @Y, align 4
   store i32 1, ptr getelementptr ([3 x %struct.X], ptr @Y, i64 0, i64 0, i32 0, i64 1), align 4
   store i32 1, ptr getelementptr ([3 x %struct.X], ptr @Y, i64 0, i64 0, i32 0, i64 2), align 4
   store i32 1, ptr getelementptr ([3 x %struct.X], ptr @Y, i64 0, i64 0, i32 0, i64 3), align 4
   store i32 1, ptr getelementptr ([3 x %struct.X], ptr @Y, i64 0, i64 0, i32 0, i64 4), align 4
entry:
   %B2 = ptrtoint ptr addrspace(1) @X_as1 to i16
   %C = sub i16 0, %B2
   %D = getelementptr i8, ptr addrspace(1) %A, i16 %C
   %E = ptrtoint ptr addrspace(1) %D to i16
 
   ret i16 %E
 }
 
-; Check that we improve the alignment information.
-; The base pointer is 16-byte aligned and we access the field at
-; an offset of 8-byte.
-; Every element in the @CallerInfos array is 16-byte aligned so
-; any access from the following gep is 8-byte aligned.
-%struct.CallerInfo = type { ptr, i32 }
-@CallerInfos = global [128 x %struct.CallerInfo] zeroinitializer, align 16
-
-define i32 @test_gep_in_struct(i64 %idx) {
-; CHECK-LABEL: @test_gep_in_struct(
-; CHECK-NEXT:    [[NS7:%.*]] = getelementptr inbounds [128 x %struct.CallerInfo], ptr @CallerInfos, i64 0, i64 [[IDX:%.*]], i32 1
-; CHECK-NEXT:    [[RES:%.*]] = load i32, ptr [[NS7]], align 8
-; CHECK-NEXT:    ret i32 [[RES]]
-;
-  %NS7 = getelementptr inbounds [128 x %struct.CallerInfo], ptr @CallerInfos, i64 0, i64 %idx, i32 1
-  %res = load i32, ptr %NS7, align 1
-  ret i32 %res
-}
-
 @g = external global i8
 @g2 = external global i8
 
 declare i64 @get.i64()
 declare void @use.ptr(ptr)
 
 define ptr @gep_sub_self() {
 ; CHECK-LABEL: @gep_sub_self(

llvm/test/Transforms/InstCombine/dbg-scalable-store-fixed-frag.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -passes='instcombine' -S | FileCheck %s
 
 define i32 @foo(<vscale x 2 x i32> %x) {
 ; CHECK-LABEL: @foo(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[ARR:%.*]] = alloca i32, align 8
+; CHECK-NEXT:    [[ARR:%.*]] = alloca i32, align 4
 ; CHECK-NEXT:    call void @llvm.dbg.value(metadata <vscale x 2 x i32> undef, metadata [[META8:![0-9]+]], metadata !DIExpression()), !dbg [[DBG14:![0-9]+]]
-; CHECK-NEXT:    store <vscale x 2 x i32> [[X:%.*]], ptr [[ARR]], align 8
-; CHECK-NEXT:    [[RES:%.*]] = load i32, ptr [[ARR]], align 8
+; CHECK-NEXT:    store <vscale x 2 x i32> [[X:%.*]], ptr [[ARR]], align 4
+; CHECK-NEXT:    [[RES:%.*]] = load i32, ptr [[ARR]], align 4
 ; CHECK-NEXT:    ret i32 [[RES]]
 ;
 entry:
   %arr = alloca i32, align 4
   call void @llvm.dbg.declare(metadata ptr %arr, metadata !8, metadata !DIExpression()), !dbg !14
   store <vscale x 2 x i32> %x, ptr %arr, align 4
   %res = load i32, ptr %arr
   ret i32 %res
 }
 
 define i32 @foo2(<vscale x 2 x i32> %x) {
 ; CHECK-LABEL: @foo2(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[ARR:%.*]] = alloca [4 x i32], align 8
+; CHECK-NEXT:    [[ARR:%.*]] = alloca [4 x i32], align 4
 ; CHECK-NEXT:    call void @llvm.dbg.declare(metadata ptr [[ARR]], metadata [[META15:![0-9]+]], metadata !DIExpression()), !dbg [[DBG17:![0-9]+]]
-; CHECK-NEXT:    store <vscale x 2 x i32> [[X:%.*]], ptr [[ARR]], align 8
-; CHECK-NEXT:    [[RES:%.*]] = load i32, ptr [[ARR]], align 8
+; CHECK-NEXT:    store <vscale x 2 x i32> [[X:%.*]], ptr [[ARR]], align 4
+; CHECK-NEXT:    [[RES:%.*]] = load i32, ptr [[ARR]], align 4
 ; CHECK-NEXT:    ret i32 [[RES]]
 ;
 entry:
   %arr = alloca [4 x i32], align 4
   call void @llvm.dbg.declare(metadata ptr %arr, metadata !15, metadata !DIExpression()), !dbg !17
   store <vscale x 2 x i32> %x, ptr %arr, align 4
   %res = load i32, ptr %arr
   ret i32 %res

llvm/test/Transforms/InstCombine/fcmp-denormals-are-zero.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -S -passes=instcombine %s | FileCheck %s
 
 @var = external global i32, align 4
 
 ; fcmp olt fabs(x), smallest_normalized_number -> fcmp oeq x, 0.0
 ; https://alive2.llvm.org/ce/z/fib8cf
 define void @denormal_input_preserve_sign_fcmp_olt_smallest_normalized(float %f32, double %f64, half %f16) #0 {
 ; CHECK-LABEL: @denormal_input_preserve_sign_fcmp_olt_smallest_normalized(
 ; CHECK-NEXT:    [[CMPF32:%.*]] = fcmp oeq float [[F32:%.*]], 0.000000e+00
-; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF64:%.*]] = fcmp oeq double [[F64:%.*]], 0.000000e+00
-; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF16:%.*]] = fcmp oeq half [[F16:%.*]], 0xH0000
-; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF32_FLAGS:%.*]] = fcmp oeq float [[F32]], 0.000000e+00
-; CHECK-NEXT:    store volatile i1 [[CMPF32_FLAGS]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF32_FLAGS]], ptr @var, align 1
 ; CHECK-NEXT:    ret void
 ;
   %f32.fabs = call float @llvm.fabs.f32(float %f32)
   %cmpf32 = fcmp olt float %f32.fabs, 0x3810000000000000
   store volatile i1 %cmpf32, ptr @var
 
   %f64.fabs = call double @llvm.fabs.f64(double %f64)
   %cmpf64 = fcmp olt double %f64.fabs, 0x10000000000000
;
   ret void
 }
 
 ; fcmp uge fabs(x), smallest_normalized_number -> fcmp une x, 0.0
 ; https://alive2.llvm.org/ce/z/xmqBXx
 define void @denormal_input_preserve_sign_fcmp_uge_smallest_normalized(float %f32, double %f64, half %f16) #0 {
 ; CHECK-LABEL: @denormal_input_preserve_sign_fcmp_uge_smallest_normalized(
 ; CHECK-NEXT:    [[CMPF32:%.*]] = fcmp une float [[F32:%.*]], 0.000000e+00
-; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF64:%.*]] = fcmp une double [[F64:%.*]], 0.000000e+00
-; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF16:%.*]] = fcmp une half [[F16:%.*]], 0xH0000
-; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 1
 ; CHECK-NEXT:    ret void
 ;
   %f32.fabs = call float @llvm.fabs.f32(float %f32)
   %cmpf32 = fcmp uge float %f32.fabs, 0x3810000000000000
   store volatile i1 %cmpf32, ptr @var
 
   %f64.fabs = call double @llvm.fabs.f64(double %f64)
   %cmpf64 = fcmp uge double %f64.fabs, 0x10000000000000
   store volatile i1 %cmpf64, ptr @var
 
   %f16.fabs = call half @llvm.fabs.f16(half %f16)
   %cmpf16 = fcmp uge half %f16.fabs, 0xH0400
   store volatile i1 %cmpf16, ptr @var
   ret void
 }
 
 ; fcmp oge fabs(x), smallest_normalized_number -> fcmp one x, 0.0
 ; https://alive2.llvm.org/ce/z/ZucNzF
 define void @denormal_input_preserve_sign_fcmp_oge_smallest_normalized(float %f32, double %f64, half %f16) #0 {
 ; CHECK-LABEL: @denormal_input_preserve_sign_fcmp_oge_smallest_normalized(
 ; CHECK-NEXT:    [[CMPF32:%.*]] = fcmp one float [[F32:%.*]], 0.000000e+00
-; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF64:%.*]] = fcmp one double [[F64:%.*]], 0.000000e+00
-; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF16:%.*]] = fcmp one half [[F16:%.*]], 0xH0000
-; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 1
 ; CHECK-NEXT:    ret void
 ;
   %f32.fabs = call float @llvm.fabs.f32(float %f32)
   %cmpf32 = fcmp oge float %f32.fabs, 0x3810000000000000
   store volatile i1 %cmpf32, ptr @var
 
   %f64.fabs = call double @llvm.fabs.f64(double %f64)
   %cmpf64 = fcmp oge double %f64.fabs, 0x10000000000000
   store volatile i1 %cmpf64, ptr @var
 
   %f16.fabs = call half @llvm.fabs.f16(half %f16)
   %cmpf16 = fcmp oge half %f16.fabs, 0xH0400
   store volatile i1 %cmpf16, ptr @var
   ret void
 }
 
 ; fcmp ult fabs(x), smallest_normalized_number -> fcmp ueq x, 0.0
 ; https://alive2.llvm.org/ce/z/csAhZ2
 define void @denormal_input_preserve_sign_fcmp_ult_smallest_normalized(float %f32, double %f64, half %f16) #0 {
 ; CHECK-LABEL: @denormal_input_preserve_sign_fcmp_ult_smallest_normalized(
 ; CHECK-NEXT:    [[CMPF32:%.*]] = fcmp ueq float [[F32:%.*]], 0.000000e+00
-; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF64:%.*]] = fcmp ueq double [[F64:%.*]], 0.000000e+00
-; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF16:%.*]] = fcmp ueq half [[F16:%.*]], 0xH0000
-; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 1
 ; CHECK-NEXT:    ret void
 ;
   %f32.fabs = call float @llvm.fabs.f32(float %f32)
   %cmpf32 = fcmp ult float %f32.fabs, 0x3810000000000000
   store volatile i1 %cmpf32, ptr @var
 
   %f64.fabs = call double @llvm.fabs.f64(double %f64)
   %cmpf64 = fcmp ult double %f64.fabs, 0x10000000000000
   store volatile i1 %cmpf64, ptr @var
 
   %f16.fabs = call half @llvm.fabs.f16(half %f16)
   %cmpf16 = fcmp ult half %f16.fabs, 0xH0400
   store volatile i1 %cmpf16, ptr @var
   ret void
 }
 
 define void @denormal_input_preserve_sign_vector_fcmp_olt_smallest_normalized(<2 x float> %f32, <2 x double> %f64, <2 x half> %f16) #0 {
 ; CHECK-LABEL: @denormal_input_preserve_sign_vector_fcmp_olt_smallest_normalized(
 ; CHECK-NEXT:    [[CMPF32:%.*]] = fcmp oeq <2 x float> [[F32:%.*]], zeroinitializer
-; CHECK-NEXT:    store volatile <2 x i1> [[CMPF32]], ptr @var, align 4
+; CHECK-NEXT:    store volatile <2 x i1> [[CMPF32]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF64:%.*]] = fcmp oeq <2 x double> [[F64:%.*]], zeroinitializer
-; CHECK-NEXT:    store volatile <2 x i1> [[CMPF64]], ptr @var, align 4
+; CHECK-NEXT:    store volatile <2 x i1> [[CMPF64]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF16:%.*]] = fcmp oeq <2 x half> [[F16:%.*]], zeroinitializer
-; CHECK-NEXT:    store volatile <2 x i1> [[CMPF16]], ptr @var, align 4
+; CHECK-NEXT:    store volatile <2 x i1> [[CMPF16]], ptr @var, align 1
 ; CHECK-NEXT:    ret void
 ;
   %f32.fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %f32)
   %cmpf32 = fcmp olt <2 x float> %f32.fabs, <float 0x3810000000000000, float 0x3810000000000000>
   store volatile <2 x i1> %cmpf32, ptr @var
 
   %f64.fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %f64)
   %cmpf64 = fcmp olt <2 x double> %f64.fabs, <double 0x10000000000000, double 0x10000000000000>
   store volatile <2 x i1> %cmpf64, ptr @var
 
   %f16.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %f16)
   %cmpf16 = fcmp olt <2 x half> %f16.fabs, <half 0xH0400, half 0xH0400>
   store volatile <2 x i1> %cmpf16, ptr @var
   ret void
 }
 
 define void @denormal_input_preserve_sign_vector_fcmp_uge_smallest_normalized(<2 x float> %f32, <2 x double> %f64, <2 x half> %f16) #0 {
 ; CHECK-LABEL: @denormal_input_preserve_sign_vector_fcmp_uge_smallest_normalized(
 ; CHECK-NEXT:    [[CMPF32:%.*]] = fcmp une <2 x float> [[F32:%.*]], zeroinitializer
-; CHECK-NEXT:    store volatile <2 x i1> [[CMPF32]], ptr @var, align 4
+; CHECK-NEXT:    store volatile <2 x i1> [[CMPF32]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF64:%.*]] = fcmp une <2 x double> [[F64:%.*]], zeroinitializer
-; CHECK-NEXT:    store volatile <2 x i1> [[CMPF64]], ptr @var, align 4
+; CHECK-NEXT:    store volatile <2 x i1> [[CMPF64]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF16:%.*]] = fcmp une <2 x half> [[F16:%.*]], zeroinitializer
-; CHECK-NEXT:    store volatile <2 x i1> [[CMPF16]], ptr @var, align 4
+; CHECK-NEXT:    store volatile <2 x i1> [[CMPF16]], ptr @var, align 1
 ; CHECK-NEXT:    ret void
 ;
   %f32.fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %f32)
   %cmpf32 = fcmp uge <2 x float> %f32.fabs, <float 0x3810000000000000, float 0x3810000000000000>
   store volatile <2 x i1> %cmpf32, ptr @var
 
   %f64.fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %f64)
   %cmpf64 = fcmp uge <2 x double> %f64.fabs, <double 0x10000000000000, double 0x10000000000000>
   store volatile <2 x i1> %cmpf64, ptr @var
 
   %f16.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %f16)
   %cmpf16 = fcmp uge <2 x half> %f16.fabs, <half 0xH0400, half 0xH0400>
   store volatile <2 x i1> %cmpf16, ptr @var
   ret void
 }
 
 define void @denormal_input_preserve_sign_vector_fcmp_oge_smallest_normalized(<2 x float> %f32, <2 x double> %f64, <2 x half> %f16) #0 {
 ; CHECK-LABEL: @denormal_input_preserve_sign_vector_fcmp_oge_smallest_normalized(
 ; CHECK-NEXT:    [[CMPF32:%.*]] = fcmp one <2 x float> [[F32:%.*]], zeroinitializer
-; CHECK-NEXT:    store volatile <2 x i1> [[CMPF32]], ptr @var, align 4
+; CHECK-NEXT:    store volatile <2 x i1> [[CMPF32]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF64:%.*]] = fcmp one <2 x double> [[F64:%.*]], zeroinitializer
-; CHECK-NEXT:    store volatile <2 x i1> [[CMPF64]], ptr @var, align 4
+; CHECK-NEXT:    store volatile <2 x i1> [[CMPF64]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF16:%.*]] = fcmp one <2 x half> [[F16:%.*]], zeroinitializer
-; CHECK-NEXT:    store volatile <2 x i1> [[CMPF16]], ptr @var, align 4
+; CHECK-NEXT:    store volatile <2 x i1> [[CMPF16]], ptr @var, align 1
 ; CHECK-NEXT:    ret void
 ;
   %f32.fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %f32)
   %cmpf32 = fcmp oge <2 x float> %f32.fabs, <float 0x3810000000000000, float 0x3810000000000000>
   store volatile <2 x i1> %cmpf32, ptr @var
 
   %f64.fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %f64)
   %cmpf64 = fcmp oge <2 x double> %f64.fabs, <double 0x10000000000000, double 0x10000000000000>
   store volatile <2 x i1> %cmpf64, ptr @var
 
   %f16.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %f16)
   %cmpf16 = fcmp oge <2 x half> %f16.fabs, <half 0xH0400, half 0xH0400>
   store volatile <2 x i1> %cmpf16, ptr @var
   ret void
 }
 
 define void @denormal_input_preserve_sign_vector_fcmp_ult_smallest_normalized(<2 x float> %f32, <2 x double> %f64, <2 x half> %f16) #0 {
 ; CHECK-LABEL: @denormal_input_preserve_sign_vector_fcmp_ult_smallest_normalized(
 ; CHECK-NEXT:    [[CMPF32:%.*]] = fcmp ueq <2 x float> [[F32:%.*]], zeroinitializer
-; CHECK-NEXT:    store volatile <2 x i1> [[CMPF32]], ptr @var, align 4
+; CHECK-NEXT:    store volatile <2 x i1> [[CMPF32]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF64:%.*]] = fcmp ueq <2 x double> [[F64:%.*]], zeroinitializer
-; CHECK-NEXT:    store volatile <2 x i1> [[CMPF64]], ptr @var, align 4
+; CHECK-NEXT:    store volatile <2 x i1> [[CMPF64]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF16:%.*]] = fcmp ueq <2 x half> [[F16:%.*]], zeroinitializer
-; CHECK-NEXT:    store volatile <2 x i1> [[CMPF16]], ptr @var, align 4
+; CHECK-NEXT:    store volatile <2 x i1> [[CMPF16]], ptr @var, align 1
 ; CHECK-NEXT:    ret void
 ;
   %f32.fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %f32)
   %cmpf32 = fcmp ult <2 x float> %f32.fabs, <float 0x3810000000000000, float 0x3810000000000000>
   store volatile <2 x i1> %cmpf32, ptr @var
 
   %f64.fabs = call <2 x double> @llvm.fabs.v2f64(<2 x double> %f64)
   %cmpf64 = fcmp ult <2 x double> %f64.fabs, <double 0x10000000000000, double 0x10000000000000>
   store volatile <2 x i1> %cmpf64, ptr @var
 
   %f16.fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %f16)
   %cmpf16 = fcmp ult <2 x half> %f16.fabs, <half 0xH0400, half 0xH0400>
   store volatile <2 x i1> %cmpf16, ptr @var
   ret void
 }
 
 ; fcmp olt fabs(x), smallest_normalized_number -> fcmp oeq x, 0.0
 ; https://alive2.llvm.org/ce/z/mpduXS
 define void @denormal_input_positive_zero_fcmp_olt_smallest_normalized(float %f32, double %f64, half %f16) #1 {
 ; CHECK-LABEL: @denormal_input_positive_zero_fcmp_olt_smallest_normalized(
 ; CHECK-NEXT:    [[CMPF32:%.*]] = fcmp oeq float [[F32:%.*]], 0.000000e+00
-; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF64:%.*]] = fcmp oeq double [[F64:%.*]], 0.000000e+00
-; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF16:%.*]] = fcmp oeq half [[F16:%.*]], 0xH0000
-; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 1
 ; CHECK-NEXT:    ret void
 ;
   %f32.fabs = call float @llvm.fabs.f32(float %f32)
   %cmpf32 = fcmp olt float %f32.fabs, 0x3810000000000000
   store volatile i1 %cmpf32, ptr @var
 
   %f64.fabs = call double @llvm.fabs.f64(double %f64)
   %cmpf64 = fcmp olt double %f64.fabs, 0x10000000000000
   store volatile i1 %cmpf64, ptr @var
 
   %f16.fabs = call half @llvm.fabs.f16(half %f16)
   %cmpf16 = fcmp olt half %f16.fabs, 0xH0400
   store volatile i1 %cmpf16, ptr @var
   ret void
 }
 
 ; Should not fold with IEEE inputs.
 define void @denormal_input_ieee(float %f32, double %f64, half %f16) #2 {
 ; CHECK-LABEL: @denormal_input_ieee(
 ; CHECK-NEXT:    [[F32_FABS:%.*]] = call float @llvm.fabs.f32(float [[F32:%.*]])
 ; CHECK-NEXT:    [[CMPF32:%.*]] = fcmp olt float [[F32_FABS]], 0x3810000000000000
-; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 1
 ; CHECK-NEXT:    [[F64_FABS:%.*]] = call double @llvm.fabs.f64(double [[F64:%.*]])
 ; CHECK-NEXT:    [[CMPF64:%.*]] = fcmp olt double [[F64_FABS]], 0x10000000000000
-; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 1
 ; CHECK-NEXT:    [[F16_FABS:%.*]] = call half @llvm.fabs.f16(half [[F16:%.*]])
 ; CHECK-NEXT:    [[CMPF16:%.*]] = fcmp olt half [[F16_FABS]], 0xH0400
-; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 1
 ; CHECK-NEXT:    ret void
 ;
   %f32.fabs = call float @llvm.fabs.f32(float %f32)
   %cmpf32 = fcmp olt float %f32.fabs, 0x3810000000000000
   store volatile i1 %cmpf32, ptr @var
 
   %f64.fabs = call double @llvm.fabs.f64(double %f64)
   %cmpf64 = fcmp olt double %f64.fabs, 0x10000000000000
   store volatile i1 %cmpf64, ptr @var
 
   %f16.fabs = call half @llvm.fabs.f16(half %f16)
   %cmpf16 = fcmp olt half %f16.fabs, 0xH0400
   store volatile i1 %cmpf16, ptr @var
   ret void
 }
 
 ; Only f32 case should fold.
 define void @denormal_input_preserve_sign_f32_only(float %f32, double %f64, half %f16) #3 {
 ; CHECK-LABEL: @denormal_input_preserve_sign_f32_only(
 ; CHECK-NEXT:    [[CMPF32:%.*]] = fcmp oeq float [[F32:%.*]], 0.000000e+00
-; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 1
 ; CHECK-NEXT:    [[F64_FABS:%.*]] = call double @llvm.fabs.f64(double [[F64:%.*]])
 ; CHECK-NEXT:    [[CMPF64:%.*]] = fcmp olt double [[F64_FABS]], 0x10000000000000
-; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 1
 ; CHECK-NEXT:    [[F16_FABS:%.*]] = call half @llvm.fabs.f16(half [[F16:%.*]])
 ; CHECK-NEXT:    [[CMPF16:%.*]] = fcmp olt half [[F16_FABS]], 0xH0400
-; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 1
 ; CHECK-NEXT:    ret void
 ;
   %f32.fabs = call float @llvm.fabs.f32(float %f32)
   %cmpf32 = fcmp olt float %f32.fabs, 0x3810000000000000
   store volatile i1 %cmpf32, ptr @var
 
   %f64.fabs = call double @llvm.fabs.f64(double %f64)
   %cmpf64 = fcmp olt double %f64.fabs, 0x10000000000000
   store volatile i1 %cmpf64, ptr @var
 
   %f16.fabs = call half @llvm.fabs.f16(half %f16)
   %cmpf16 = fcmp olt half %f16.fabs, 0xH0400
   store volatile i1 %cmpf16, ptr @var
   ret void
 }
 
 define void @wrong_fcmp_type_ole(float %f32, double %f64, half %f16) #0 {
 ; CHECK-LABEL: @wrong_fcmp_type_ole(
 ; CHECK-NEXT:    [[F32_FABS:%.*]] = call float @llvm.fabs.f32(float [[F32:%.*]])
 ; CHECK-NEXT:    [[CMPF32:%.*]] = fcmp ole float [[F32_FABS]], 0x3810000000000000
-; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 1
 ; CHECK-NEXT:    [[F64_FABS:%.*]] = call double @llvm.fabs.f64(double [[F64:%.*]])
 ; CHECK-NEXT:    [[CMPF64:%.*]] = fcmp ole double [[F64_FABS]], 0x10000000000000
-; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 1
 ; CHECK-NEXT:    [[F16_FABS:%.*]] = call half @llvm.fabs.f16(half [[F16:%.*]])
 ; CHECK-NEXT:    [[CMPF16:%.*]] = fcmp ole half [[F16_FABS]], 0xH0400
-; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 1
 ; CHECK-NEXT:    ret void
 ;
   %f32.fabs = call float @llvm.fabs.f32(float %f32)
   %cmpf32 = fcmp ole float %f32.fabs, 0x3810000000000000
   store volatile i1 %cmpf32, ptr @var
 
   %f64.fabs = call double @llvm.fabs.f64(double %f64)
   %cmpf64 = fcmp ole double %f64.fabs, 0x10000000000000
   store volatile i1 %cmpf64, ptr @var
 
   %f16.fabs = call half @llvm.fabs.f16(half %f16)
   %cmpf16 = fcmp ole half %f16.fabs, 0xH0400
   store volatile i1 %cmpf16, ptr @var
   ret void
 }
 
 define void @missing_fabs(float %f32, double %f64, half %f16) #0 {
 ; CHECK-LABEL: @missing_fabs(
 ; CHECK-NEXT:    [[CMPF32:%.*]] = fcmp olt float [[F32:%.*]], 0x3810000000000000
-; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF32]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF64:%.*]] = fcmp olt double [[F64:%.*]], 0x10000000000000
-; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF64]], ptr @var, align 1
 ; CHECK-NEXT:    [[CMPF16:%.*]] = fcmp olt half [[F16:%.*]], 0xH0400
-; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 4
+; CHECK-NEXT:    store volatile i1 [[CMPF16]], ptr @var, align 1
 ; CHECK-NEXT:    ret void
 ;
   %cmpf32 = fcmp olt float %f32, 0x3810000000000000
   store volatile i1 %cmpf32, ptr @var
 
   %cmpf64 = fcmp olt double %f64, 0x10000000000000
   store volatile i1 %cmpf64, ptr @var
 

llvm/test/Transforms/InstCombine/fp-ret-bitcast.ll

 
 @"\01L_OBJC_METH_VAR_NAME_112" = internal global [15 x i8] c"whiteComponent\00", section "__TEXT,__cstring,cstring_literals"
 @"\01L_OBJC_SELECTOR_REFERENCES_81" = internal global ptr @"\01L_OBJC_METH_VAR_NAME_112", section "__OBJC,__message_refs,literal_pointers,no_dead_strip"
 
 define void @bork() nounwind  {
 ; CHECK-LABEL: @bork(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[COLOR:%.*]] = alloca ptr, align 8
-; CHECK-NEXT:    [[TMP103:%.*]] = load ptr, ptr [[COLOR]], align 8
-; CHECK-NEXT:    [[TMP105:%.*]] = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_81", align 8
+; CHECK-NEXT:    [[TMP103:%.*]] = load ptr, ptr [[COLOR]], align 4
+; CHECK-NEXT:    [[TMP105:%.*]] = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_81", align 4
 ; CHECK-NEXT:    [[TMP107:%.*]] = call float @objc_msgSend_fpret(ptr [[TMP103]], ptr [[TMP105]]) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    br label [[EXIT:%.*]]
 ; CHECK:       exit:
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %color = alloca ptr
   %color.466 = alloca ptr

llvm/test/Transforms/InstCombine/gep-custom-dl.ll

;
   store ptr addrspace(2) %B, ptr addrspace(1) @global_as1_as2_ptr
   ret void
 }
 
 @arst = addrspace(1) global [4 x ptr addrspace(2)] zeroinitializer
 
 define void @test_evaluate_gep_as_ptrs_array(ptr addrspace(2) %B) {
 ; CHECK-LABEL: @test_evaluate_gep_as_ptrs_array(
-; CHECK-NEXT:    store ptr addrspace(2) [[B:%.*]], ptr addrspace(1) getelementptr inbounds ([4 x ptr addrspace(2)], ptr addrspace(1) @arst, i32 0, i32 2), align 16
+; CHECK-NEXT:    store ptr addrspace(2) [[B:%.*]], ptr addrspace(1) getelementptr inbounds ([4 x ptr addrspace(2)], ptr addrspace(1) @arst, i32 0, i32 2), align 8
 ; CHECK-NEXT:    ret void
 ;
 
   %A = getelementptr [4 x ptr addrspace(2)], ptr addrspace(1) @arst, i16 0, i16 2
   store ptr addrspace(2) %B, ptr addrspace(1) %A
   ret void
 }
 

llvm/test/Transforms/InstCombine/getelementptr.ll

 %as2_ptr_struct = type { ptr addrspace(2) }
 
 @global_as2 = addrspace(2) global i32 zeroinitializer
 @global_as1_as2_ptr = addrspace(1) global %as2_ptr_struct { ptr addrspace(2) @global_as2 }
 
 ; This should be turned into a constexpr instead of being an instruction
 define void @test_evaluate_gep_nested_as_ptrs(ptr addrspace(2) %B) {
 ; CHECK-LABEL: @test_evaluate_gep_nested_as_ptrs(
-; CHECK-NEXT:    store ptr addrspace(2) [[B:%.*]], ptr addrspace(1) @global_as1_as2_ptr, align 8
+; CHECK-NEXT:    store ptr addrspace(2) [[B:%.*]], ptr addrspace(1) @global_as1_as2_ptr, align 4
 ; CHECK-NEXT:    ret void
 ;
   store ptr addrspace(2) %B, ptr addrspace(1) @global_as1_as2_ptr
   ret void
 }
 
 @arst = addrspace(1) global [4 x ptr addrspace(2)] zeroinitializer
 
;
   %t7 = zext i1 %t6 to i32
   ret i32 %t7
 }
 
 
 define i32 @test21() {
 ; CHECK-LABEL: @test21(
 ; CHECK-NEXT:    [[PBOB1:%.*]] = alloca [[INTSTRUCT:%.*]], align 8
-; CHECK-NEXT:    [[RVAL:%.*]] = load i32, ptr [[PBOB1]], align 8
+; CHECK-NEXT:    [[RVAL:%.*]] = load i32, ptr [[PBOB1]], align 4
 ; CHECK-NEXT:    ret i32 [[RVAL]]
 ;
   %pbob1 = alloca %intstruct
   %pbob2 = getelementptr %intstruct, ptr %pbob1
   %rval = load i32, ptr %pbob2
   ret i32 %rval
 }
 
;
   ret i1 %V
 }
 
 
 ; PR1345
 define ptr @test32(ptr %v) {
 ; CHECK-LABEL: @test32(
 ; CHECK-NEXT:    [[A:%.*]] = alloca [4 x ptr], align 16
-; CHECK-NEXT:    store ptr null, ptr [[A]], align 16
+; CHECK-NEXT:    store ptr null, ptr [[A]], align 8
 ; CHECK-NEXT:    [[D:%.*]] = getelementptr inbounds { [16 x i8] }, ptr [[A]], i64 0, i32 0, i64 8
 ; CHECK-NEXT:    store ptr [[V:%.*]], ptr [[D]], align 8
 ; CHECK-NEXT:    [[F:%.*]] = getelementptr inbounds [4 x ptr], ptr [[A]], i64 0, i64 2
-; CHECK-NEXT:    [[G:%.*]] = load ptr, ptr [[F]], align 16
+; CHECK-NEXT:    [[G:%.*]] = load ptr, ptr [[F]], align 8
 ; CHECK-NEXT:    ret ptr [[G]]
 ;
   %A = alloca [4 x ptr], align 16
   store ptr null, ptr %A
   %D = getelementptr { [16 x i8] }, ptr %A, i32 0, i32 0, i32 8
   store ptr %v, ptr %D
   %F = getelementptr [4 x ptr], ptr %A, i32 0, i32 2
   %G = load ptr, ptr %F

llvm/test/Transforms/InstCombine/load-cmp.ll

;
   %q = load i32, ptr %p
   %r = icmp eq i32 %q, 9
   ret i1 %r
 }
 
 define i1 @test10_struct_noinbounds(i32 %x) {
 ; CHECK-LABEL: @test10_struct_noinbounds(
 ; CHECK-NEXT:    [[P:%.*]] = getelementptr [[FOO:%.*]], ptr @GS, i32 [[X:%.*]], i32 0
-; CHECK-NEXT:    [[Q:%.*]] = load i32, ptr [[P]], align 8
+; CHECK-NEXT:    [[Q:%.*]] = load i32, ptr [[P]], align 4
 ; CHECK-NEXT:    [[R:%.*]] = icmp eq i32 [[Q]], 9
 ; CHECK-NEXT:    ret i1 [[R]]
 ;
   %p = getelementptr %Foo, ptr @GS, i32 %x, i32 0
   %q = load i32, ptr %p
   %r = icmp eq i32 %q, 9
   ret i1 %r
 }
;
   %r = icmp eq i32 %q, 0
   ret i1 %r
 }
 
 define i1 @test10_struct_noinbounds_i16(i16 %x) {
 ; CHECK-LABEL: @test10_struct_noinbounds_i16(
 ; CHECK-NEXT:    [[TMP1:%.*]] = sext i16 [[X:%.*]] to i32
 ; CHECK-NEXT:    [[P:%.*]] = getelementptr [[FOO:%.*]], ptr @GS, i32 [[TMP1]], i32 0
-; CHECK-NEXT:    [[Q:%.*]] = load i32, ptr [[P]], align 8
+; CHECK-NEXT:    [[Q:%.*]] = load i32, ptr [[P]], align 4
 ; CHECK-NEXT:    [[R:%.*]] = icmp eq i32 [[Q]], 0
 ; CHECK-NEXT:    ret i1 [[R]]
 ;
   %p = getelementptr %Foo, ptr @GS, i16 %x, i32 0
   %q = load i32, ptr %p
   %r = icmp eq i32 %q, 0
   ret i1 %r
 }

llvm/test/Transforms/InstCombine/load-combine-metadata-dominance.ll

 
 define void @combine_metadata_dominance6(ptr %p) {
 ; CHECK-LABEL: define void @combine_metadata_dominance6
 ; CHECK-SAME: (ptr [[P:%.*]]) {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    br label [[BB1:%.*]]
 ; CHECK:       bb1:
 ; CHECK-NEXT:    [[A:%.*]] = load ptr, ptr [[P]], align 8, !align !2, !noundef !0
-; CHECK-NEXT:    store i32 0, ptr [[A]], align 8
+; CHECK-NEXT:    store i32 0, ptr [[A]], align 4
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %a = load ptr, ptr %p, !align !2, !noundef !1
   br label %bb1
 
 bb1:
   %b = load ptr, ptr %p, !align !3

llvm/test/Transforms/InstCombine/load.ll

 ; intervening store if %y. However, the intervening store occurs with a different
 ; type and size and to a different pointer value. This is ensuring that none of
 ; those confuse the analysis into thinking that the second store does not alias
 ; the first.
 
 define i8 @test14(i8 %x, i32 %y) {
 ; CHECK-LABEL: @test14(
 ; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
-; CHECK-NEXT:    store i8 [[X:%.*]], ptr [[A]], align 4
+; CHECK-NEXT:    store i8 [[X:%.*]], ptr [[A]], align 1
 ; CHECK-NEXT:    store i32 [[Y:%.*]], ptr [[A]], align 4
-; CHECK-NEXT:    [[R:%.*]] = load i8, ptr [[A]], align 4
+; CHECK-NEXT:    [[R:%.*]] = load i8, ptr [[A]], align 1
 ; CHECK-NEXT:    ret i8 [[R]]
 ;
   %a = alloca i32
   store i8 %x, ptr %a
   store i32 %y, ptr %a
   %r = load i8, ptr %a
   ret i8 %r
 }
 
 @test15_global = external global i32
 
 ; Same test as @test14 essentially, but using a global instead of an alloca.
 
 define i8 @test15(i8 %x, i32 %y) {
 ; CHECK-LABEL: @test15(
-; CHECK-NEXT:    store i8 [[X:%.*]], ptr @test15_global, align 4
+; CHECK-NEXT:    store i8 [[X:%.*]], ptr @test15_global, align 1
 ; CHECK-NEXT:    store i32 [[Y:%.*]], ptr @test15_global, align 4
-; CHECK-NEXT:    [[R:%.*]] = load i8, ptr @test15_global, align 4
+; CHECK-NEXT:    [[R:%.*]] = load i8, ptr @test15_global, align 1
 ; CHECK-NEXT:    ret i8 [[R]]
 ;
   store i8 %x, ptr @test15_global
   store i32 %y, ptr @test15_global
   %r = load i8, ptr @test15_global
   ret i8 %r
 }
 

 }
 
 ; TODO: For non-byte-sized vectors, current implementation assumes there is
 ; padding to the next byte boundary between elements.
 @foo = constant <2 x i4> <i4 u0x1, i4 u0x2>, align 8
 
 define i4 @test_vector_load_i4_non_byte_sized() {
 ; CHECK-LABEL: @test_vector_load_i4_non_byte_sized(
-; CHECK-NEXT:    [[RES0:%.*]] = load i4, ptr @foo, align 8
+; CHECK-NEXT:    [[RES0:%.*]] = load i4, ptr @foo, align 1
 ; CHECK-NEXT:    ret i4 [[RES0]]
 ;
   %ptr0 = getelementptr i8, ptr @foo, i64 0
   %res0 = load i4, ptr %ptr0, align 1
   ret i4 %res0
 }

llvm/test/Transforms/InstCombine/loadstore-alignment.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -passes=instcombine -S < %s | FileCheck %s
 target datalayout = "E-p:64:64:64-p1:64:64:64-p2:32:32:32-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
 
 @x = external global <2 x i64>, align 16
 @xx = external global [13 x <2 x i64>], align 16
 
 @x.as2 = external addrspace(2) global <2 x i64>, align 16
 
 define <2 x i64> @static_hem() {
 ; CHECK-LABEL: @static_hem(
-; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x i64>, ptr getelementptr (<2 x i64>, ptr @x, i64 7), align 16
+; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x i64>, ptr getelementptr (<2 x i64>, ptr @x, i64 7), align 1
 ; CHECK-NEXT:    ret <2 x i64> [[TMP1]]
 ;
   %t = getelementptr <2 x i64>, ptr @x, i32 7
   %tmp1 = load <2 x i64>, ptr %t, align 1
   ret <2 x i64> %tmp1
 }
 
 define <2 x i64> @hem(i32 %i) {
 ; CHECK-LABEL: @hem(
 ; CHECK-NEXT:    [[TMP1:%.*]] = sext i32 [[I:%.*]] to i64
 ; CHECK-NEXT:    [[T:%.*]] = getelementptr <2 x i64>, ptr @x, i64 [[TMP1]]
-; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x i64>, ptr [[T]], align 16
+; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x i64>, ptr [[T]], align 1
 ; CHECK-NEXT:    ret <2 x i64> [[TMP1]]
 ;
   %t = getelementptr <2 x i64>, ptr @x, i32 %i
   %tmp1 = load <2 x i64>, ptr %t, align 1
   ret <2 x i64> %tmp1
 }
 
 define <2 x i64> @hem_2d(i32 %i, i32 %j) {
 ; CHECK-LABEL: @hem_2d(
 ; CHECK-NEXT:    [[TMP1:%.*]] = sext i32 [[I:%.*]] to i64
 ; CHECK-NEXT:    [[TMP2:%.*]] = sext i32 [[J:%.*]] to i64
 ; CHECK-NEXT:    [[T:%.*]] = getelementptr [13 x <2 x i64>], ptr @xx, i64 [[TMP1]], i64 [[TMP2]]
-; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x i64>, ptr [[T]], align 16
+; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x i64>, ptr [[T]], align 1
 ; CHECK-NEXT:    ret <2 x i64> [[TMP1]]
 ;
   %t = getelementptr [13 x <2 x i64>], ptr @xx, i32 %i, i32 %j
   %tmp1 = load <2 x i64>, ptr %t, align 1
   ret <2 x i64> %tmp1
 }
 
 define <2 x i64> @foo() {
 ; CHECK-LABEL: @foo(
-; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x i64>, ptr @x, align 16
+; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x i64>, ptr @x, align 1
 ; CHECK-NEXT:    ret <2 x i64> [[TMP1]]
 ;
   %tmp1 = load <2 x i64>, ptr @x, align 1
   ret <2 x i64> %tmp1
 }
 
 define <2 x i64> @bar() {
 ; CHECK-LABEL: @bar(
 ; CHECK-NEXT:    [[T:%.*]] = alloca <2 x i64>, align 16
 ; CHECK-NEXT:    call void @kip(ptr nonnull [[T]])
-; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x i64>, ptr [[T]], align 16
+; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x i64>, ptr [[T]], align 1
 ; CHECK-NEXT:    ret <2 x i64> [[TMP1]]
 ;
   %t = alloca <2 x i64>
   call void @kip(ptr %t)
   %tmp1 = load <2 x i64>, ptr %t, align 1
   ret <2 x i64> %tmp1
 }
 
 define void @static_hem_store(<2 x i64> %y) {
 ; CHECK-LABEL: @static_hem_store(
-; CHECK-NEXT:    store <2 x i64> [[Y:%.*]], ptr getelementptr (<2 x i64>, ptr @x, i64 7), align 16
+; CHECK-NEXT:    store <2 x i64> [[Y:%.*]], ptr getelementptr (<2 x i64>, ptr @x, i64 7), align 1
 ; CHECK-NEXT:    ret void
 ;
   %t = getelementptr <2 x i64>, ptr @x, i32 7
   store <2 x i64> %y, ptr %t, align 1
   ret void
 }
 
 define void @hem_store(i32 %i, <2 x i64> %y) {
 ; CHECK-LABEL: @hem_store(
 ; CHECK-NEXT:    [[TMP1:%.*]] = sext i32 [[I:%.*]] to i64
 ; CHECK-NEXT:    [[T:%.*]] = getelementptr <2 x i64>, ptr @x, i64 [[TMP1]]
-; CHECK-NEXT:    store <2 x i64> [[Y:%.*]], ptr [[T]], align 16
+; CHECK-NEXT:    store <2 x i64> [[Y:%.*]], ptr [[T]], align 1
 ; CHECK-NEXT:    ret void
 ;
   %t = getelementptr <2 x i64>, ptr @x, i32 %i
   store <2 x i64> %y, ptr %t, align 1
   ret void
 }
 
 define void @hem_2d_store(i32 %i, i32 %j, <2 x i64> %y) {
 ; CHECK-LABEL: @hem_2d_store(
 ; CHECK-NEXT:    [[TMP1:%.*]] = sext i32 [[I:%.*]] to i64
 ; CHECK-NEXT:    [[TMP2:%.*]] = sext i32 [[J:%.*]] to i64
 ; CHECK-NEXT:    [[T:%.*]] = getelementptr [13 x <2 x i64>], ptr @xx, i64 [[TMP1]], i64 [[TMP2]]
-; CHECK-NEXT:    store <2 x i64> [[Y:%.*]], ptr [[T]], align 16
+; CHECK-NEXT:    store <2 x i64> [[Y:%.*]], ptr [[T]], align 1
 ; CHECK-NEXT:    ret void
 ;
   %t = getelementptr [13 x <2 x i64>], ptr @xx, i32 %i, i32 %j
   store <2 x i64> %y, ptr %t, align 1
   ret void
 }
 
 define void @foo_store(<2 x i64> %y) {
 ; CHECK-LABEL: @foo_store(
-; CHECK-NEXT:    store <2 x i64> [[Y:%.*]], ptr @x, align 16
+; CHECK-NEXT:    store <2 x i64> [[Y:%.*]], ptr @x, align 1
 ; CHECK-NEXT:    ret void
 ;
   store <2 x i64> %y, ptr @x, align 1
   ret void
 }
 
 define void @bar_store(<2 x i64> %y) {
 ; CHECK-LABEL: @bar_store(
 ; CHECK-NEXT:    [[T:%.*]] = alloca <2 x i64>, align 16
 ; CHECK-NEXT:    call void @kip(ptr nonnull [[T]])
-; CHECK-NEXT:    store <2 x i64> [[Y:%.*]], ptr [[T]], align 16
+; CHECK-NEXT:    store <2 x i64> [[Y:%.*]], ptr [[T]], align 1
 ; CHECK-NEXT:    ret void
 ;
   %t = alloca <2 x i64>
   call void @kip(ptr %t)
   store <2 x i64> %y, ptr %t, align 1
   ret void
 }
 
 declare void @kip(ptr %t)

llvm/test/Transforms/InstCombine/memcpy-from-global.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -passes=instcombine -S | FileCheck %s
 target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64"
 @C.0.1248 = internal constant [128 x float] [ float -1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00 ], align 32    ; <ptr> [#uses=1]
 
 define float @test1(i32 %hash, float %x, float %y, float %z, float %w) {
 ; CHECK-LABEL: @test1(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[TMP3:%.*]] = shl i32 [[HASH:%.*]], 2
 ; CHECK-NEXT:    [[TMP5:%.*]] = and i32 [[TMP3]], 124
 ; CHECK-NEXT:    [[TMP0:%.*]] = zext i32 [[TMP5]] to i64
 ; CHECK-NEXT:    [[TMP753:%.*]] = getelementptr [128 x float], ptr @C.0.1248, i64 0, i64 [[TMP0]]
-; CHECK-NEXT:    [[TMP9:%.*]] = load float, ptr [[TMP753]], align 16
+; CHECK-NEXT:    [[TMP9:%.*]] = load float, ptr [[TMP753]], align 4
 ; CHECK-NEXT:    [[TMP11:%.*]] = fmul float [[TMP9]], [[X:%.*]]
 ; CHECK-NEXT:    [[TMP13:%.*]] = fadd float [[TMP11]], 0.000000e+00
 ; CHECK-NEXT:    [[TMP17_SUM52:%.*]] = or i32 [[TMP5]], 1
 ; CHECK-NEXT:    [[TMP1:%.*]] = zext i32 [[TMP17_SUM52]] to i64
 ; CHECK-NEXT:    [[TMP1851:%.*]] = getelementptr [128 x float], ptr @C.0.1248, i64 0, i64 [[TMP1]]
 ; CHECK-NEXT:    [[TMP19:%.*]] = load float, ptr [[TMP1851]], align 4
 ; CHECK-NEXT:    [[TMP21:%.*]] = fmul float [[TMP19]], [[Y:%.*]]
 ; CHECK-NEXT:    [[TMP23:%.*]] = fadd float [[TMP21]], [[TMP13]]
 ; CHECK-NEXT:    [[TMP27_SUM50:%.*]] = or i32 [[TMP5]], 2
 ; CHECK-NEXT:    [[TMP2:%.*]] = zext i32 [[TMP27_SUM50]] to i64
 ; CHECK-NEXT:    [[TMP2849:%.*]] = getelementptr [128 x float], ptr @C.0.1248, i64 0, i64 [[TMP2]]
-; CHECK-NEXT:    [[TMP29:%.*]] = load float, ptr [[TMP2849]], align 8
+; CHECK-NEXT:    [[TMP29:%.*]] = load float, ptr [[TMP2849]], align 4
 ; CHECK-NEXT:    [[TMP31:%.*]] = fmul float [[TMP29]], [[Z:%.*]]
 ; CHECK-NEXT:    [[TMP33:%.*]] = fadd float [[TMP31]], [[TMP23]]
 ; CHECK-NEXT:    [[TMP37_SUM48:%.*]] = or i32 [[TMP5]], 3
 ; CHECK-NEXT:    [[TMP3:%.*]] = zext i32 [[TMP37_SUM48]] to i64
 ; CHECK-NEXT:    [[TMP3847:%.*]] = getelementptr [128 x float], ptr @C.0.1248, i64 0, i64 [[TMP3]]
 ; CHECK-NEXT:    [[TMP39:%.*]] = load float, ptr [[TMP3847]], align 4
 ; CHECK-NEXT:    [[TMP41:%.*]] = fmul float [[TMP39]], [[W:%.*]]
 ; CHECK-NEXT:    [[TMP43:%.*]] = fadd float [[TMP41]], [[TMP33]]

llvm/test/Transforms/InstCombine/merging-multiple-stores-into-successor.ll

 ; CHECK-NEXT:    [[I2:%.*]] = load i32, ptr @var_1, align 4
 ; CHECK-NEXT:    [[I3:%.*]] = icmp eq i32 [[I2]], 0
 ; CHECK-NEXT:    [[I6:%.*]] = load i64, ptr @var_5, align 8
 ; CHECK-NEXT:    [[I5:%.*]] = sext i16 [[I4]] to i64
 ; CHECK-NEXT:    [[I7:%.*]] = select i1 [[I3]], i64 [[I6]], i64 [[I5]]
 ; CHECK-NEXT:    [[I11:%.*]] = trunc i64 [[I7]] to i32
 ; CHECK-NEXT:    br label [[BB12]]
 ; CHECK:       bb12:
-; CHECK-NEXT:    [[STOREMERGE1:%.*]] = phi i32 [ [[I11]], [[BB10]] ], [ 1, [[BB9]] ]
 ; CHECK-NEXT:    [[STOREMERGE:%.*]] = phi i32 [ 1, [[BB9]] ], [ [[I11]], [[BB10]] ]
-; CHECK-NEXT:    store i32 [[STOREMERGE1]], ptr @arr_2, align 4
+; CHECK-NEXT:    store i32 [[STOREMERGE]], ptr @arr_2, align 4
 ; CHECK-NEXT:    store i16 [[I4]], ptr @arr_4, align 2
 ; CHECK-NEXT:    [[I8:%.*]] = sext i16 [[I4]] to i32
-; CHECK-NEXT:    store i32 [[I8]], ptr @arr_3, align 16
+; CHECK-NEXT:    store i32 [[I8]], ptr @arr_3, align 4
 ; CHECK-NEXT:    store i32 [[STOREMERGE]], ptr getelementptr inbounds ([0 x i32], ptr @arr_2, i64 0, i64 1), align 4
 ; CHECK-NEXT:    store i16 [[I4]], ptr getelementptr inbounds ([0 x i16], ptr @arr_4, i64 0, i64 1), align 2
 ; CHECK-NEXT:    store i32 [[I8]], ptr getelementptr inbounds ([8 x i32], ptr @arr_3, i64 0, i64 1), align 4
 ; CHECK-NEXT:    ret void
 ;
 bb:
   %i = load i8, ptr @var_7, align 1
   %i1 = icmp eq i8 %i, -1

 }
 
 define i32 @diff_types_diff_width_no_merge(i1 %cond, i32 %a, i64 %b) {
 ; CHECK-LABEL: @diff_types_diff_width_no_merge(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[ALLOCA:%.*]] = alloca i64, align 8
 ; CHECK-NEXT:    br i1 [[COND:%.*]], label [[A:%.*]], label [[B:%.*]]
 ; CHECK:       A:
-; CHECK-NEXT:    store i32 [[A:%.*]], ptr [[ALLOCA]], align 8
+; CHECK-NEXT:    store i32 [[A:%.*]], ptr [[ALLOCA]], align 4
 ; CHECK-NEXT:    br label [[SINK:%.*]]
 ; CHECK:       B:
-; CHECK-NEXT:    store i64 [[B:%.*]], ptr [[ALLOCA]], align 8
+; CHECK-NEXT:    store i64 [[B:%.*]], ptr [[ALLOCA]], align 4
 ; CHECK-NEXT:    br label [[SINK]]
 ; CHECK:       sink:
-; CHECK-NEXT:    [[VAL:%.*]] = load i32, ptr [[ALLOCA]], align 8
+; CHECK-NEXT:    [[VAL:%.*]] = load i32, ptr [[ALLOCA]], align 4
 ; CHECK-NEXT:    ret i32 [[VAL]]
 ;
 entry:
   %alloca = alloca i64
   br i1 %cond, label %A, label %B
 A:
   store i32 %a, ptr %alloca
   br label %sink
 B:
   store i64 %b, ptr %alloca
   br label %sink
 sink:
   %val = load i32, ptr %alloca
   ret i32 %val
 }
 
 define <4 x i32> @vec_no_merge(i1 %cond, <2 x i32> %a, <4 x i32> %b) {
 ; CHECK-LABEL: @vec_no_merge(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[ALLOCA:%.*]] = alloca i64, align 16
+; CHECK-NEXT:    [[ALLOCA:%.*]] = alloca i64, align 8
 ; CHECK-NEXT:    br i1 [[COND:%.*]], label [[A:%.*]], label [[B:%.*]]
 ; CHECK:       A:
-; CHECK-NEXT:    store <2 x i32> [[A:%.*]], ptr [[ALLOCA]], align 16
+; CHECK-NEXT:    store <2 x i32> [[A:%.*]], ptr [[ALLOCA]], align 8
 ; CHECK-NEXT:    br label [[SINK:%.*]]
 ; CHECK:       B:
 ; CHECK-NEXT:    store <4 x i32> [[B:%.*]], ptr [[ALLOCA]], align 16
 ; CHECK-NEXT:    br label [[SINK]]
 ; CHECK:       sink:
 ; CHECK-NEXT:    [[VAL:%.*]] = load <4 x i32>, ptr [[ALLOCA]], align 16
 ; CHECK-NEXT:    ret <4 x i32> [[VAL]]
 ;

 %struct.tup = type { half, i32 };
 
 define %struct.tup @multi_elem_struct_no_merge(i1 %cond, %struct.tup %a, half %b) {
 ; CHECK-LABEL: @multi_elem_struct_no_merge(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[ALLOCA:%.*]] = alloca i64, align 8
 ; CHECK-NEXT:    br i1 [[COND:%.*]], label [[A:%.*]], label [[B:%.*]]
 ; CHECK:       A:
-; CHECK-NEXT:    store [[STRUCT_TUP:%.*]] [[A:%.*]], ptr [[ALLOCA]], align 8
+; CHECK-NEXT:    store [[STRUCT_TUP:%.*]] [[A:%.*]], ptr [[ALLOCA]], align 4
 ; CHECK-NEXT:    br label [[SINK:%.*]]
 ; CHECK:       B:
-; CHECK-NEXT:    store half [[B:%.*]], ptr [[ALLOCA]], align 8
+; CHECK-NEXT:    store half [[B:%.*]], ptr [[ALLOCA]], align 2
 ; CHECK-NEXT:    br label [[SINK]]
 ; CHECK:       sink:
-; CHECK-NEXT:    [[VAL:%.*]] = load [[STRUCT_TUP]], ptr [[ALLOCA]], align 8
+; CHECK-NEXT:    [[VAL:%.*]] = load [[STRUCT_TUP]], ptr [[ALLOCA]], align 4
 ; CHECK-NEXT:    ret [[STRUCT_TUP]] [[VAL]]
 ;
 entry:
   %alloca = alloca i64
   br i1 %cond, label %A, label %B
 A:
   store %struct.tup %a, ptr %alloca
   br label %sink

 ; CHECK-NEXT:    br i1 [[COND:%.*]], label [[BB0:%.*]], label [[BB1:%.*]]
 ; CHECK:       BB0:
 ; CHECK-NEXT:    store i16 [[A:%.*]], ptr [[ALLOCA]], align 8
 ; CHECK-NEXT:    br label [[SINK:%.*]]
 ; CHECK:       BB1:
 ; CHECK-NEXT:    store i16 [[B:%.*]], ptr [[ALLOCA]], align 4
 ; CHECK-NEXT:    br label [[SINK]]
 ; CHECK:       sink:
-; CHECK-NEXT:    [[VAL:%.*]] = load i16, ptr [[ALLOCA]], align 4
+; CHECK-NEXT:    [[VAL:%.*]] = load i16, ptr [[ALLOCA]], align 2
 ; CHECK-NEXT:    ret i16 [[VAL]]
 ;
 entry:
   %alloca = alloca i16, align 4
   br i1 %cond, label %BB0, label %BB1
 BB0:
   store i16 %a, ptr %alloca, align 8
   br label %sink
 BB1:
   store i16 %b, ptr %alloca, align 4
   br label %sink
 sink:
   %val = load i16, ptr %alloca
   ret i16 %val
 }
 
 define i64 @ptrtoint_merge(i1 %cond, i64 %a, ptr %b) {
 ; CHECK-LABEL: @ptrtoint_merge(
 ; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[ALLOCA:%.*]] = alloca ptr, align 8
 ; CHECK-NEXT:    br i1 [[COND:%.*]], label [[BB0:%.*]], label [[BB1:%.*]]
 ; CHECK:       BB0:
+; CHECK-NEXT:    store i64 [[A:%.*]], ptr [[ALLOCA]], align 4
 ; CHECK-NEXT:    br label [[SINK:%.*]]
 ; CHECK:       BB1:
-; CHECK-NEXT:    [[TMP0:%.*]] = ptrtoint ptr [[B:%.*]] to i64
+; CHECK-NEXT:    store ptr [[B:%.*]], ptr [[ALLOCA]], align 8
 ; CHECK-NEXT:    br label [[SINK]]
 ; CHECK:       sink:
-; CHECK-NEXT:    [[STOREMERGE:%.*]] = phi i64 [ [[A:%.*]], [[BB0]] ], [ [[TMP0]], [[BB1]] ]
-; CHECK-NEXT:    ret i64 [[STOREMERGE]]
+; CHECK-NEXT:    [[VAL:%.*]] = load i64, ptr [[ALLOCA]], align 4
+; CHECK-NEXT:    ret i64 [[VAL]]
 ;
 entry:
   %alloca = alloca ptr
   br i1 %cond, label %BB0, label %BB1
 BB0:
   store i64 %a, ptr %alloca
   br label %sink
 BB1:

llvm/test/Transforms/InstCombine/phi.ll

end:
   ret i64 %g
 }
 
 ; PR6512 - Shouldn't merge loads from different addr spaces.
 define i32 @test16(ptr addrspace(1) %pointer1, i32 %flag, ptr %pointer2)
 ; CHECK-LABEL: @test16(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[RETVAL:%.*]] = alloca i32, align 4
-; CHECK-NEXT:    [[POINTER1_ADDR:%.*]] = alloca ptr addrspace(1), align 8
-; CHECK-NEXT:    [[POINTER2_ADDR:%.*]] = alloca ptr, align 8
+; CHECK-NEXT:    [[POINTER1_ADDR:%.*]] = alloca ptr addrspace(1), align 4
+; CHECK-NEXT:    [[POINTER2_ADDR:%.*]] = alloca ptr, align 4
 ; CHECK-NEXT:    store ptr addrspace(1) [[POINTER1:%.*]], ptr [[POINTER1_ADDR]], align 8
 ; CHECK-NEXT:    store ptr [[POINTER2:%.*]], ptr [[POINTER2_ADDR]], align 8
 ; CHECK-NEXT:    [[TOBOOL_NOT:%.*]] = icmp eq i32 [[FLAG:%.*]], 0
 ; CHECK-NEXT:    br i1 [[TOBOOL_NOT]], label [[IF_ELSE:%.*]], label [[IF_THEN:%.*]]
 ; CHECK:       return:
 ; CHECK-NEXT:    [[T7:%.*]] = load i32, ptr [[RETVAL]], align 4
 ; CHECK-NEXT:    ret i32 [[T7]]
 ; CHECK:       if.end:

llvm/test/Transforms/InstCombine/pr33689_same_bitwidth.ll

 ; CHECK-NEXT:  bb0:
 ; CHECK-NEXT:    [[T1:%.*]] = alloca i64, align 8
 ; CHECK-NEXT:    br i1 [[COND:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
 ; CHECK:       bb1:
 ; CHECK-NEXT:    unreachable
 ; CHECK:       bb2:
 ; CHECK-NEXT:    [[T9:%.*]] = load ptr, ptr @b, align 2
 ; CHECK-NEXT:    store i16 0, ptr [[T9]], align 2
-; CHECK-NEXT:    [[T10:%.*]] = load i32, ptr [[T1]], align 8
+; CHECK-NEXT:    [[T10:%.*]] = load i32, ptr [[T1]], align 4
 ; CHECK-NEXT:    [[T11:%.*]] = add i32 [[T10]], -1
-; CHECK-NEXT:    store i32 [[T11]], ptr [[T1]], align 8
+; CHECK-NEXT:    store i32 [[T11]], ptr [[T1]], align 4
 ; CHECK-NEXT:    ret void
 ;
 bb0:
   %t1 = alloca %i64_t
   %useless4 = getelementptr inbounds i16, ptr %t1, i16 undef
   br i1 %cond, label %bb1, label %bb2
 
 bb1:                                              ; preds = %bb0

llvm/test/Transforms/InstCombine/pr44552.ll

 @g_313_5 = internal global i16 0, align 1
 @g_313_6 = internal global i16 0, align 1
 @g_316 = internal global %struct.S3 zeroinitializer, align 1
 @g_316_1_0 = internal global i16 0, align 1
 
 define i16 @main() {
 ; CHECK-LABEL: @main(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    store i64 0, ptr @csmith_sink_, align 8
+; CHECK-NEXT:    store i64 0, ptr @csmith_sink_, align 1
 ; CHECK-NEXT:    ret i16 0
 ;
 entry:
   store i64 0, ptr @csmith_sink_, align 1
   %0 = load i16, ptr @g_313_0, align 1
   %conv2 = sext i16 %0 to i64
   store i64 %conv2, ptr @csmith_sink_, align 1
   %1 = load i32, ptr @g_313_1, align 1

llvm/test/Transforms/InstCombine/pr59613.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -passes=instcombine -S | FileCheck %s
 
 ; This used to crash, depending on the particular worklist iteration order.
 define void @pr59613(<6 x i16> %0) {
 ; CHECK-LABEL: @pr59613(
-; CHECK-NEXT:    store <6 x i16> poison, ptr null, align 4294967296
+; CHECK-NEXT:    store <6 x i16> poison, ptr null, align 16
 ; CHECK-NEXT:    ret void
 ;
   %cmp1 = icmp ne <6 x i16> %0, zeroinitializer
   %or = or <6 x i1> <i1 true, i1 false, i1 false, i1 false, i1 undef, i1 undef>, %cmp1
   %sext = sext <6 x i1> %or to <6 x i16>
   %not = xor <6 x i16> %sext, <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1>
   store <6 x i16> %not, ptr null, align 16
   ret void
 }

llvm/test/Transforms/InstCombine/scalable-cast-of-alloc.ll

entry:
   %reload = load volatile <vscale x 4 x i32>, ptr %tmp, align 16
   store <vscale x 4 x i32> %reload, ptr %out, align 16
   ret void
 }
 
 define void @scalable4i32_to_fixed16i32(ptr %out) {
 ; CHECK-LABEL: @scalable4i32_to_fixed16i32(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP:%.*]] = alloca <vscale x 4 x i32>, align 64
-; CHECK-NEXT:    store <16 x i32> zeroinitializer, ptr [[TMP]], align 64
-; CHECK-NEXT:    [[RELOAD:%.*]] = load volatile <16 x i32>, ptr [[TMP]], align 64
+; CHECK-NEXT:    [[TMP:%.*]] = alloca <vscale x 4 x i32>, align 16
+; CHECK-NEXT:    store <16 x i32> zeroinitializer, ptr [[TMP]], align 16
+; CHECK-NEXT:    [[RELOAD:%.*]] = load volatile <16 x i32>, ptr [[TMP]], align 16
 ; CHECK-NEXT:    store <16 x i32> [[RELOAD]], ptr [[OUT:%.*]], align 16
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %tmp = alloca <vscale x 4 x i32>, align 16
   store <16 x i32> zeroinitializer, ptr %tmp, align 16
   %reload = load volatile <16 x i32>, ptr %tmp, align 16
   store <16 x i32> %reload, ptr %out, align 16
entry:
   %reload = load volatile <vscale x 4 x i32>, ptr %tmp, align 16
   store <vscale x 4 x i32> %reload, ptr %out, align 16
   ret void
 }
 
 define void @scalable16i32_to_fixed16i32(ptr %out) {
 ; CHECK-LABEL: @scalable16i32_to_fixed16i32(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP:%.*]] = alloca <vscale x 16 x i32>, align 64
-; CHECK-NEXT:    store volatile <16 x i32> zeroinitializer, ptr [[TMP]], align 64
-; CHECK-NEXT:    [[RELOAD:%.*]] = load volatile <16 x i32>, ptr [[TMP]], align 64
+; CHECK-NEXT:    [[TMP:%.*]] = alloca <vscale x 16 x i32>, align 16
+; CHECK-NEXT:    store volatile <16 x i32> zeroinitializer, ptr [[TMP]], align 16
+; CHECK-NEXT:    [[RELOAD:%.*]] = load volatile <16 x i32>, ptr [[TMP]], align 16
 ; CHECK-NEXT:    store <16 x i32> [[RELOAD]], ptr [[OUT:%.*]], align 16
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %tmp = alloca <vscale x 16 x i32>, align 16
   store volatile <16 x i32> zeroinitializer, ptr %tmp, align 16
   %reload = load volatile <16 x i32>, ptr %tmp, align 16
   store <16 x i32> %reload, ptr %out, align 16
   ret void
 }
 
 define void @scalable32i32_to_scalable16i32(ptr %out) {
 ; CHECK-LABEL: @scalable32i32_to_scalable16i32(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP:%.*]] = alloca <vscale x 32 x i32>, align 64
-; CHECK-NEXT:    store volatile <vscale x 16 x i32> zeroinitializer, ptr [[TMP]], align 64
-; CHECK-NEXT:    [[RELOAD:%.*]] = load volatile <vscale x 16 x i32>, ptr [[TMP]], align 64
+; CHECK-NEXT:    [[TMP:%.*]] = alloca <vscale x 32 x i32>, align 16
+; CHECK-NEXT:    store volatile <vscale x 16 x i32> zeroinitializer, ptr [[TMP]], align 16
+; CHECK-NEXT:    [[RELOAD:%.*]] = load volatile <vscale x 16 x i32>, ptr [[TMP]], align 16
 ; CHECK-NEXT:    store <vscale x 16 x i32> [[RELOAD]], ptr [[OUT:%.*]], align 16
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %tmp = alloca <vscale x 32 x i32>, align 16
   store volatile <vscale x 16 x i32> zeroinitializer, ptr %tmp, align 16
   %reload = load volatile <vscale x 16 x i32>, ptr %tmp, align 16
   store <vscale x 16 x i32> %reload, ptr %out, align 16
   ret void
 }
 
 define void @scalable32i16_to_scalable16i32(ptr %out) {
 ; CHECK-LABEL: @scalable32i16_to_scalable16i32(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP:%.*]] = alloca <vscale x 32 x i16>, align 64
-; CHECK-NEXT:    store volatile <vscale x 16 x i32> zeroinitializer, ptr [[TMP]], align 64
-; CHECK-NEXT:    [[RELOAD:%.*]] = load volatile <vscale x 16 x i32>, ptr [[TMP]], align 64
+; CHECK-NEXT:    [[TMP:%.*]] = alloca <vscale x 32 x i16>, align 16
+; CHECK-NEXT:    store volatile <vscale x 16 x i32> zeroinitializer, ptr [[TMP]], align 16
+; CHECK-NEXT:    [[RELOAD:%.*]] = load volatile <vscale x 16 x i32>, ptr [[TMP]], align 16
 ; CHECK-NEXT:    store <vscale x 16 x i32> [[RELOAD]], ptr [[OUT:%.*]], align 16
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %tmp = alloca <vscale x 32 x i16>, align 16
   store volatile <vscale x 16 x i32> zeroinitializer, ptr %tmp, align 16
   %reload = load volatile <vscale x 16 x i32>, ptr %tmp, align 16
   store <vscale x 16 x i32> %reload, ptr %out, align 16
   ret void
 }
 
 define void @scalable32i16_to_scalable16i32_multiuse(ptr %out, ptr %out2) {
 ; CHECK-LABEL: @scalable32i16_to_scalable16i32_multiuse(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP:%.*]] = alloca <vscale x 32 x i16>, align 64
-; CHECK-NEXT:    store volatile <vscale x 16 x i32> zeroinitializer, ptr [[TMP]], align 64
-; CHECK-NEXT:    [[RELOAD:%.*]] = load volatile <vscale x 16 x i32>, ptr [[TMP]], align 64
+; CHECK-NEXT:    [[TMP:%.*]] = alloca <vscale x 32 x i16>, align 16
+; CHECK-NEXT:    store volatile <vscale x 16 x i32> zeroinitializer, ptr [[TMP]], align 16
+; CHECK-NEXT:    [[RELOAD:%.*]] = load volatile <vscale x 16 x i32>, ptr [[TMP]], align 16
 ; CHECK-NEXT:    store <vscale x 16 x i32> [[RELOAD]], ptr [[OUT:%.*]], align 16
-; CHECK-NEXT:    [[RELOAD2:%.*]] = load volatile <vscale x 32 x i16>, ptr [[TMP]], align 64
+; CHECK-NEXT:    [[RELOAD2:%.*]] = load volatile <vscale x 32 x i16>, ptr [[TMP]], align 16
 ; CHECK-NEXT:    store <vscale x 32 x i16> [[RELOAD2]], ptr [[OUT2:%.*]], align 16
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %tmp = alloca <vscale x 32 x i16>, align 16
   store volatile <vscale x 16 x i32> zeroinitializer, ptr %tmp, align 16
   %reload = load volatile <vscale x 16 x i32>, ptr %tmp, align 16
   store <vscale x 16 x i32> %reload, ptr %out, align 16
   %reload2 = load volatile <vscale x 32 x i16>, ptr %tmp, align 16
   store <vscale x 32 x i16> %reload2, ptr %out2, align 16
   ret void
 }

llvm/test/Transforms/InstCombine/select.ll

 ; Test that we can speculate the load around the select even though they use
 ; differently typed pointers and requires inttoptr casts.
 define ptr @test83(i1 %flag) {
 ; CHECK-LABEL: @test83(
 ; CHECK-NEXT:    [[X:%.*]] = alloca ptr, align 8
 ; CHECK-NEXT:    [[Y:%.*]] = alloca i64, align 8
 ; CHECK-NEXT:    call void @scribble_on_i64(ptr nonnull [[X]])
 ; CHECK-NEXT:    call void @scribble_on_i64(ptr nonnull [[Y]])
-; CHECK-NEXT:    [[T:%.*]] = load i64, ptr [[X]], align 8
-; CHECK-NEXT:    store i64 [[T]], ptr [[Y]], align 8
+; CHECK-NEXT:    [[T:%.*]] = load i64, ptr [[X]], align 4
+; CHECK-NEXT:    store i64 [[T]], ptr [[Y]], align 4
 ; CHECK-NEXT:    [[V:%.*]] = inttoptr i64 [[T]] to ptr
 ; CHECK-NEXT:    ret ptr [[V]]
 ;
   %x = alloca ptr
   %y = alloca i64
   call void @scribble_on_i64(ptr %x)
   call void @scribble_on_i64(ptr %y)
   %t = load i64, ptr %x

 ; pointer doesn't load all of the stored integer bits. We could fix this, but it
 ; would require endianness checks and other nastiness.
 define ptr @test85(i1 %flag) {
 ; CHECK-LABEL: @test85(
 ; CHECK-NEXT:    [[X:%.*]] = alloca [2 x ptr], align 8
 ; CHECK-NEXT:    [[Y:%.*]] = alloca i128, align 8
 ; CHECK-NEXT:    call void @scribble_on_i128(ptr nonnull [[X]])
 ; CHECK-NEXT:    call void @scribble_on_i128(ptr nonnull [[Y]])
-; CHECK-NEXT:    [[T:%.*]] = load i128, ptr [[X]], align 8
-; CHECK-NEXT:    store i128 [[T]], ptr [[Y]], align 8
+; CHECK-NEXT:    [[T:%.*]] = load i128, ptr [[X]], align 4
+; CHECK-NEXT:    store i128 [[T]], ptr [[Y]], align 4
 ; CHECK-NEXT:    [[X_VAL:%.*]] = load ptr, ptr [[X]], align 8
 ; CHECK-NEXT:    [[Y_VAL:%.*]] = load ptr, ptr [[Y]], align 8
 ; CHECK-NEXT:    [[V:%.*]] = select i1 [[FLAG:%.*]], ptr [[X_VAL]], ptr [[Y_VAL]]
 ; CHECK-NEXT:    ret ptr [[V]]
 ;
   %x = alloca [2 x ptr]
   %y = alloca i128
   call void @scribble_on_i128(ptr %x)

 define i128 @test86(i1 %flag) {
 ; CHECK-LABEL: @test86(
 ; CHECK-NEXT:    [[X:%.*]] = alloca [2 x ptr], align 8
 ; CHECK-NEXT:    [[Y:%.*]] = alloca i128, align 8
 ; CHECK-NEXT:    call void @scribble_on_i128(ptr nonnull [[X]])
 ; CHECK-NEXT:    call void @scribble_on_i128(ptr nonnull [[Y]])
 ; CHECK-NEXT:    [[T:%.*]] = load ptr, ptr [[X]], align 8
 ; CHECK-NEXT:    store ptr [[T]], ptr [[Y]], align 8
-; CHECK-NEXT:    [[X_VAL:%.*]] = load i128, ptr [[X]], align 8
-; CHECK-NEXT:    [[Y_VAL:%.*]] = load i128, ptr [[Y]], align 8
+; CHECK-NEXT:    [[X_VAL:%.*]] = load i128, ptr [[X]], align 4
+; CHECK-NEXT:    [[Y_VAL:%.*]] = load i128, ptr [[Y]], align 4
 ; CHECK-NEXT:    [[V:%.*]] = select i1 [[FLAG:%.*]], i128 [[X_VAL]], i128 [[Y_VAL]]
 ; CHECK-NEXT:    ret i128 [[V]]
 ;
   %x = alloca [2 x ptr]
   %y = alloca i128
   call void @scribble_on_i128(ptr %x)
   call void @scribble_on_i128(ptr %y)
   %t = load ptr, ptr %x

llvm/test/Transforms/InstCombine/store.ll

 ; CHECK-NEXT:    ret void
 ;
   store i32 123, ptr undef
   ret void
 }
 
 define void @store_into_null(ptr %P) {
 ; CHECK-LABEL: @store_into_null(
-; CHECK-NEXT:    store i32 poison, ptr null, align 4294967296
+; CHECK-NEXT:    store i32 poison, ptr null, align 4
 ; CHECK-NEXT:    ret void
 ;
   store i32 124, ptr null
   ret void
 }
 
 define void @test2(ptr %P) {
 ; CHECK-LABEL: @test2(

llvm/test/Transforms/InstCombine/trivial-dse-calls.ll

;
   %a2 = alloca i32, align 4
   call void @f2(ptr nocapture writeonly %a, ptr %a2) argmemonly nounwind willreturn
   ret void
 }
 
 define i32 @test_neg_captured_by_call() {
 ; CHECK-LABEL: @test_neg_captured_by_call(
 ; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
-; CHECK-NEXT:    [[A2:%.*]] = alloca ptr, align 8
+; CHECK-NEXT:    [[A2:%.*]] = alloca ptr, align 4
 ; CHECK-NEXT:    call void @f2(ptr nonnull writeonly [[A]], ptr nonnull [[A2]]) #[[ATTR3]]
 ; CHECK-NEXT:    [[A_COPY_CAST:%.*]] = load ptr, ptr [[A2]], align 8
 ; CHECK-NEXT:    [[RES:%.*]] = load i32, ptr [[A_COPY_CAST]], align 4
 ; CHECK-NEXT:    ret i32 [[RES]]
 ;
   %a = alloca i32, align 4
   %a2 = alloca ptr, align 4
   call void @f2(ptr writeonly %a, ptr %a2) argmemonly nounwind willreturn

llvm/test/Transforms/InstCombine/vscale_gep.ll

 }
 
 ; These tests serve to verify code changes when underlying gep ptr is alloca.
 ; This test is to verify 'inbounds' is added when it's valid to accumulate constant offset.
 define i32 @gep_alloca_inbounds_vscale_zero() {
 ; CHECK-LABEL: @gep_alloca_inbounds_vscale_zero(
 ; CHECK-NEXT:    [[A:%.*]] = alloca <vscale x 4 x i32>, align 16
 ; CHECK-NEXT:    [[TMP:%.*]] = getelementptr inbounds <vscale x 4 x i32>, ptr [[A]], i64 0, i64 2
-; CHECK-NEXT:    [[LOAD:%.*]] = load i32, ptr [[TMP]], align 8
+; CHECK-NEXT:    [[LOAD:%.*]] = load i32, ptr [[TMP]], align 4
 ; CHECK-NEXT:    ret i32 [[LOAD]]
 ;
   %a = alloca <vscale x 4 x i32>
   %tmp = getelementptr <vscale x 4 x i32>, ptr %a, i32 0, i32 2
   %load = load i32, ptr %tmp
   ret i32 %load
 }
 
 ; This test is to verify 'inbounds' is not added when a constant offset can not be determined at compile-time.
 define i32 @gep_alloca_inbounds_vscale_nonzero() {
 ; CHECK-LABEL: @gep_alloca_inbounds_vscale_nonzero(
 ; CHECK-NEXT:    [[A:%.*]] = alloca <vscale x 4 x i32>, align 16
 ; CHECK-NEXT:    [[TMP:%.*]] = getelementptr <vscale x 4 x i32>, ptr [[A]], i64 1, i64 2
-; CHECK-NEXT:    [[LOAD:%.*]] = load i32, ptr [[TMP]], align 8
+; CHECK-NEXT:    [[LOAD:%.*]] = load i32, ptr [[TMP]], align 4
 ; CHECK-NEXT:    ret i32 [[LOAD]]
 ;
   %a = alloca <vscale x 4 x i32>
   %tmp = getelementptr <vscale x 4 x i32>, ptr %a, i32 1, i32 2
   %load = load i32, ptr %tmp
   ret i32 %load
 }

llvm/test/Transforms/LoopVectorize/X86/pr42674.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt %s -passes=loop-vectorize,instcombine,simplifycfg -simplifycfg-require-and-preserve-domtree=1 -mtriple=x86_64-unknown-linux-gnu -mattr=avx512vl,avx512dq,avx512bw -S | FileCheck %s
 
 @bytes = global [128 x i8] zeroinitializer, align 16
 
 ; Make sure we end up with vector code for this loop. We used to try to create
 ; a VF=64,UF=4 loop, but the scalar trip count is only 128 so
 ; the vector loop was dead code leaving only a scalar remainder.
 define zeroext i8 @sum() {
 ; CHECK-LABEL: @sum(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[WIDE_LOAD2:%.*]] = load <64 x i8>, ptr getelementptr inbounds ([128 x i8], ptr @bytes, i64 0, i64 64), align 16
-; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <64 x i8>, ptr @bytes, align 16
+; CHECK-NEXT:    [[WIDE_LOAD2:%.*]] = load <64 x i8>, ptr getelementptr inbounds ([128 x i8], ptr @bytes, i64 0, i64 64), align 1
+; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <64 x i8>, ptr @bytes, align 1
 ; CHECK-NEXT:    [[BIN_RDX:%.*]] = add <64 x i8> [[WIDE_LOAD2]], [[WIDE_LOAD]]
 ; CHECK-NEXT:    [[TMP0:%.*]] = call i8 @llvm.vector.reduce.add.v64i8(<64 x i8> [[BIN_RDX]])
 ; CHECK-NEXT:    ret i8 [[TMP0]]
 ;
 entry:
   br label %for.body
 
 for.body:                                         ; preds = %for.body, %entry

llvm/test/Transforms/LoopVectorize/X86/small-size.ll

 define void @example1() optsize {
 ; CHECK-LABEL: @example1(
 ; CHECK-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
 ; CHECK:       vector.ph:
 ; CHECK-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; CHECK:       vector.body:
 ; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr inbounds [2048 x i32], ptr @b, i64 0, i64 [[INDEX]]
-; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i32>, ptr [[TMP1]], align 16
+; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i32>, ptr [[TMP1]], align 4
 ; CHECK-NEXT:    [[TMP2:%.*]] = getelementptr inbounds [2048 x i32], ptr @c, i64 0, i64 [[INDEX]]
-; CHECK-NEXT:    [[WIDE_LOAD1:%.*]] = load <4 x i32>, ptr [[TMP2]], align 16
+; CHECK-NEXT:    [[WIDE_LOAD1:%.*]] = load <4 x i32>, ptr [[TMP2]], align 4
 ; CHECK-NEXT:    [[TMP3:%.*]] = add nsw <4 x i32> [[WIDE_LOAD1]], [[WIDE_LOAD]]
 ; CHECK-NEXT:    [[TMP4:%.*]] = getelementptr inbounds [2048 x i32], ptr @a, i64 0, i64 [[INDEX]]
-; CHECK-NEXT:    store <4 x i32> [[TMP3]], ptr [[TMP4]], align 16
+; CHECK-NEXT:    store <4 x i32> [[TMP3]], ptr [[TMP4]], align 4
 ; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
 ; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], 256
 ; CHECK-NEXT:    br i1 [[TMP5]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br i1 true, label [[TMP7:%.*]], label [[SCALAR_PH]]
 ; CHECK:       scalar.ph:
 ; CHECK-NEXT:    br label [[TMP6:%.*]]
 ; CHECK:       6:

 ; CHECK:       vector.body:
 ; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_STORE_CONTINUE6:%.*]] ]
 ; CHECK-NEXT:    [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[PRED_STORE_CONTINUE6]] ]
 ; CHECK-NEXT:    [[TMP3:%.*]] = icmp ule <4 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
 ; CHECK-NEXT:    [[TMP4:%.*]] = extractelement <4 x i1> [[TMP3]], i64 0
 ; CHECK-NEXT:    br i1 [[TMP4]], label [[PRED_STORE_IF:%.*]], label [[PRED_STORE_CONTINUE:%.*]]
 ; CHECK:       pred.store.if:
 ; CHECK-NEXT:    [[TMP5:%.*]] = getelementptr inbounds [2048 x i32], ptr @b, i64 0, i64 [[INDEX]]
-; CHECK-NEXT:    store i32 [[X:%.*]], ptr [[TMP5]], align 16
+; CHECK-NEXT:    store i32 [[X:%.*]], ptr [[TMP5]], align 4
 ; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE]]
 ; CHECK:       pred.store.continue:
 ; CHECK-NEXT:    [[TMP6:%.*]] = extractelement <4 x i1> [[TMP3]], i64 1
 ; CHECK-NEXT:    br i1 [[TMP6]], label [[PRED_STORE_IF1:%.*]], label [[PRED_STORE_CONTINUE2:%.*]]
 ; CHECK:       pred.store.if1:
 ; CHECK-NEXT:    [[TMP7:%.*]] = or i64 [[INDEX]], 1
 ; CHECK-NEXT:    [[TMP8:%.*]] = getelementptr inbounds [2048 x i32], ptr @b, i64 0, i64 [[TMP7]]
 ; CHECK-NEXT:    store i32 [[X]], ptr [[TMP8]], align 4
 ; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE2]]
 ; CHECK:       pred.store.continue2:
 ; CHECK-NEXT:    [[TMP9:%.*]] = extractelement <4 x i1> [[TMP3]], i64 2
 ; CHECK-NEXT:    br i1 [[TMP9]], label [[PRED_STORE_IF3:%.*]], label [[PRED_STORE_CONTINUE4:%.*]]
 ; CHECK:       pred.store.if3:
 ; CHECK-NEXT:    [[TMP10:%.*]] = or i64 [[INDEX]], 2
 ; CHECK-NEXT:    [[TMP11:%.*]] = getelementptr inbounds [2048 x i32], ptr @b, i64 0, i64 [[TMP10]]
-; CHECK-NEXT:    store i32 [[X]], ptr [[TMP11]], align 8
+; CHECK-NEXT:    store i32 [[X]], ptr [[TMP11]], align 4
 ; CHECK-NEXT:    br label [[PRED_STORE_CONTINUE4]]
 ; CHECK:       pred.store.continue4:
 ; CHECK-NEXT:    [[TMP12:%.*]] = extractelement <4 x i1> [[TMP3]], i64 3
 ; CHECK-NEXT:    br i1 [[TMP12]], label [[PRED_STORE_IF5:%.*]], label [[PRED_STORE_CONTINUE6]]
 ; CHECK:       pred.store.if5:
 ; CHECK-NEXT:    [[TMP13:%.*]] = or i64 [[INDEX]], 3
 ; CHECK-NEXT:    [[TMP14:%.*]] = getelementptr inbounds [2048 x i32], ptr @b, i64 0, i64 [[TMP13]]
 ; CHECK-NEXT:    store i32 [[X]], ptr [[TMP14]], align 4

llvm/test/Transforms/LoopVectorize/multiple-address-spaces.ll

 ; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
 ; CHECK:       vector.ph:
 ; CHECK-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; CHECK:       vector.body:
 ; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-NEXT:    [[TMP0:%.*]] = getelementptr inbounds [40000 x i8], ptr addrspace(1) @Y, i64 0, i64 [[INDEX]]
-; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i8>, ptr addrspace(1) [[TMP0]], align 4
+; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i8>, ptr addrspace(1) [[TMP0]], align 1
 ; CHECK-NEXT:    [[TMP1:%.*]] = add <4 x i8> [[WIDE_LOAD]], <i8 1, i8 1, i8 1, i8 1>
 ; CHECK-NEXT:    [[TMP2:%.*]] = getelementptr inbounds [40000 x i8], ptr @X, i64 0, i64 [[INDEX]]
-; CHECK-NEXT:    store <4 x i8> [[TMP1]], ptr [[TMP2]], align 4
+; CHECK-NEXT:    store <4 x i8> [[TMP1]], ptr [[TMP2]], align 1
 ; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
 ; CHECK-NEXT:    [[TMP3:%.*]] = icmp eq i64 [[INDEX_NEXT]], 40000
 ; CHECK-NEXT:    br i1 [[TMP3]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]]
 ; CHECK:       scalar.ph:
 ; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
 ; CHECK:       for.body:

llvm/test/Transforms/LoopVectorize/non-const-n.ll

 ; CHECK-NEXT:    [[TMP0:%.*]] = add i32 [[N4]], -4
 ; CHECK-NEXT:    [[TMP1:%.*]] = zext i32 [[TMP0]] to i64
 ; CHECK-NEXT:    br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
 ; CHECK:       vector.ph:
 ; CHECK-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; CHECK:       vector.body:
 ; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
 ; CHECK-NEXT:    [[TMP2:%.*]] = getelementptr inbounds [2048 x i32], ptr @b, i64 0, i64 [[INDEX]]
-; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i32>, ptr [[TMP2]], align 16
+; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <4 x i32>, ptr [[TMP2]], align 4
 ; CHECK-NEXT:    [[TMP3:%.*]] = getelementptr inbounds [2048 x i32], ptr @c, i64 0, i64 [[INDEX]]
-; CHECK-NEXT:    [[WIDE_LOAD1:%.*]] = load <4 x i32>, ptr [[TMP3]], align 16
+; CHECK-NEXT:    [[WIDE_LOAD1:%.*]] = load <4 x i32>, ptr [[TMP3]], align 4
 ; CHECK-NEXT:    [[TMP4:%.*]] = add nsw <4 x i32> [[WIDE_LOAD1]], [[WIDE_LOAD]]
 ; CHECK-NEXT:    [[TMP5:%.*]] = getelementptr inbounds [2048 x i32], ptr @a, i64 0, i64 [[INDEX]]
-; CHECK-NEXT:    store <4 x i32> [[TMP4]], ptr [[TMP5]], align 16
+; CHECK-NEXT:    store <4 x i32> [[TMP4]], ptr [[TMP5]], align 4
 ; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
 ; CHECK-NEXT:    [[TMP6:%.*]] = icmp eq i64 [[INDEX]], [[TMP1]]
 ; CHECK-NEXT:    br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
 ; CHECK:       middle.block:
 ; CHECK-NEXT:    br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
 ; CHECK:       scalar.ph:
 ; CHECK-NEXT:    br label [[LOOP:%.*]]
 ; CHECK:       loop:

llvm/test/Transforms/PhaseOrdering/inlining-alignment-assumptions.ll

define internal i1 @callee1(i1 %c, ptr align 8 %ptr) {
   ret i1 %c
 }
 
 define void @caller1(i1 %c, ptr align 1 %ptr) {
 ; ASSUMPTIONS-OFF-LABEL: @caller1(
 ; ASSUMPTIONS-OFF-NEXT:    br i1 [[C:%.*]], label [[COMMON_RET:%.*]], label [[FALSE2:%.*]]
 ; ASSUMPTIONS-OFF:       common.ret:
 ; ASSUMPTIONS-OFF-NEXT:    [[DOTSINK:%.*]] = phi i64 [ 3, [[FALSE2]] ], [ 2, [[TMP0:%.*]] ]
-; ASSUMPTIONS-OFF-NEXT:    store volatile i64 0, ptr [[PTR:%.*]], align 8
+; ASSUMPTIONS-OFF-NEXT:    store volatile i64 0, ptr [[PTR:%.*]], align 4
 ; ASSUMPTIONS-OFF-NEXT:    store volatile i64 -1, ptr [[PTR]], align 4
 ; ASSUMPTIONS-OFF-NEXT:    store volatile i64 -1, ptr [[PTR]], align 4
 ; ASSUMPTIONS-OFF-NEXT:    store volatile i64 -1, ptr [[PTR]], align 4
 ; ASSUMPTIONS-OFF-NEXT:    store volatile i64 -1, ptr [[PTR]], align 4
 ; ASSUMPTIONS-OFF-NEXT:    store volatile i64 -1, ptr [[PTR]], align 4
 ; ASSUMPTIONS-OFF-NEXT:    store volatile i64 [[DOTSINK]], ptr [[PTR]], align 4
 ; ASSUMPTIONS-OFF-NEXT:    ret void
 ; ASSUMPTIONS-OFF:       false2: