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Differential D72182 Diff 236201 llvm/test/Transforms/DeadStoreElimination/non-escaping-ptr.ll

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llvm/test/Transforms/DeadStoreElimination/non-escaping-ptr.ll

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt %s -basicaa -dse -enable-dse-memoryssa -S | FileCheck %s
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
declare i32* @return_first(i32* returned, i32*)
declare i32* @return_second(i32*, i32* returned)
declare noalias i8* @malloc(i32)
define void @test1() {
; CHECK-LABEL: @test1(
; CHECK-NEXT: ret void
;
%P = alloca i32, i32 1, align 1
store i32 0, i32* %P
ret void
}
define void @test2() {
; CHECK-LABEL: @test2(
; CHECK-NEXT: ret void
;
%P = alloca i32, i32 1, align 1
%P1 = bitcast i32* %P to i8*
store i8 0, i8* %P1
ret void
}
define void @test3() {
; CHECK-LABEL: @test3(
; CHECK-NEXT: ret void
;
%P = alloca i32, i32 4, align 1
%P1 = bitcast i32* %P to i8*
%P2 = bitcast i8* %P1 to i32*
%P2.gep = getelementptr i32, i32* %P2, i32 4
%P3 = bitcast i32* %P2.gep to i8*
%P4 = bitcast i8* %P3 to i32*
%P5 = bitcast i32* %P4 to i8*
store i8 0, i8* %P5
ret void
}
define void @test4() {
; CHECK-LABEL: @test4(
; CHECK-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: ret void
;
%P = alloca i32, i32 4, align 1
%P1 = bitcast i32* %P to i8*
%P2 = bitcast i8* %P1 to i32*
%P2.gep = getelementptr i32, i32* %P2, i32 4
br i1 true, label %bb1, label %bb2
bb1:
%P3.1 = bitcast i32* %P2.gep to i8*
br label %bb3
bb2:
%P3.2 = bitcast i32* %P2.gep to i8*
br label %bb3
bb3:
%P3 = phi i8* [ %P3.1, %bb1 ], [%P3.2, %bb2 ]
%P4 = bitcast i8* %P3 to i32*
%P5 = bitcast i32* %P4 to i8*
store i8 0, i8* %P5
ret void
}
define void @test5() {
; CHECK-LABEL: @test5(
; CHECK-NEXT: [[P:%.*]] = alloca i32, i32 4, align 1
; CHECK-NEXT: [[P1:%.*]] = bitcast i32* [[P]] to i8*
; CHECK-NEXT: [[P2:%.*]] = bitcast i8* [[P1]] to i32*
; CHECK-NEXT: [[P2_GEP:%.*]] = getelementptr i32, i32* [[P2]], i32 4
; CHECK-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[P3_3:%.*]] = call i32* @return_first(i32* [[P2_GEP]], i32* null)
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: [[P3_3_I:%.*]] = call i32* @return_second(i32* null, i32* [[P2_GEP]])
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: ret void
;
%P = alloca i32, i32 4, align 1
%P1 = bitcast i32* %P to i8*
%P2 = bitcast i8* %P1 to i32*
%P2.gep = getelementptr i32, i32* %P2, i32 4
br i1 true, label %bb1, label %bb2
bb1:
%P3.3 = call i32* @return_first(i32* %P2.gep, i32* null)
%P3.1 = bitcast i32* %P3.3 to i8*
br label %bb3
bb2:
%P3.3.i = call i32* @return_second(i32* null, i32* %P2.gep)
%P3.1.i = bitcast i32* %P3.3.i to i8*
br label %bb3
bb3:
%P3 = phi i8* [ %P3.1, %bb1 ], [%P3.1.i, %bb2 ]
%P4 = bitcast i8* %P3 to i32*
%P5 = bitcast i32* %P4 to i8*
store i8 0, i8* %P5
ret void
}
define i8* @test28() {
; CHECK-LABEL: @test28(
; CHECK-NEXT: bb0:
; CHECK-NEXT: [[M:%.*]] = call noalias i8* @malloc(i32 10)
; CHECK-NEXT: [[MC0:%.*]] = bitcast i8* [[M]] to i8*
; CHECK-NEXT: [[MC1:%.*]] = bitcast i8* [[MC0]] to i8*
; CHECK-NEXT: [[MC2:%.*]] = bitcast i8* [[MC1]] to i8*
; CHECK-NEXT: [[MC3:%.*]] = bitcast i8* [[MC2]] to i8*
; CHECK-NEXT: [[MC4:%.*]] = bitcast i8* [[MC3]] to i8*
; CHECK-NEXT: [[MC5:%.*]] = bitcast i8* [[MC4]] to i8*
; CHECK-NEXT: [[MC6:%.*]] = bitcast i8* [[MC5]] to i8*
; CHECK-NEXT: [[M0:%.*]] = bitcast i8* [[MC6]] to i8*
; CHECK-NEXT: store i8 2, i8* [[M0]]
; CHECK-NEXT: ret i8* [[M0]]
;
bb0:
%m = call noalias i8* @malloc(i32 10)
%mc0 = bitcast i8* %m to i8*
%mc1 = bitcast i8* %mc0 to i8*
%mc2 = bitcast i8* %mc1 to i8*
%mc3 = bitcast i8* %mc2 to i8*
%mc4 = bitcast i8* %mc3 to i8*
%mc5 = bitcast i8* %mc4 to i8*
%mc6 = bitcast i8* %mc5 to i8*
%m0 = bitcast i8* %mc6 to i8*
store i8 2, i8* %m0
ret i8* %m0
}
define i8* @test28A() {
; CHECK-LABEL: @test28A(
; CHECK-NEXT: bb0:
; CHECK-NEXT: ret i8* null
;
bb0:
%m = call noalias i8* @malloc(i32 10)
%mc0 = bitcast i8* %m to i8*
%mc1 = bitcast i8* %mc0 to i8*
%mc2 = bitcast i8* %mc1 to i8*
%mc3 = bitcast i8* %mc2 to i8*
%mc4 = bitcast i8* %mc3 to i8*
%mc5 = bitcast i8* %mc4 to i8*
%mc6 = bitcast i8* %mc5 to i8*
%m0 = bitcast i8* %mc6 to i8*
store i8 2, i8* %m0
ret i8* null
}
define void @test6() {
; CHECK-LABEL: @test6(
; CHECK-NEXT: [[P:%.*]] = alloca i32, i32 4, align 1
; CHECK-NEXT: [[P1:%.*]] = bitcast i32* [[P]] to i8*
; CHECK-NEXT: [[P2:%.*]] = bitcast i8* [[P1]] to i32*
; CHECK-NEXT: [[P2_GEP:%.*]] = getelementptr i32, i32* [[P2]], i32 4
; CHECK-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[P3_3:%.*]] = call i32* @return_first(i32* [[P2_GEP]], i32* null)
; CHECK-NEXT: [[P3_1:%.*]] = bitcast i32* [[P3_3]] to i8*
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: [[P3_3_I:%.*]] = call i32* @return_second(i32* [[P2_GEP]], i32* null)
; CHECK-NEXT: [[P3_1_I:%.*]] = bitcast i32* [[P3_3_I]] to i8*
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: [[P3:%.*]] = phi i8* [ [[P3_1]], [[BB1]] ], [ [[P3_1_I]], [[BB2]] ]
; CHECK-NEXT: [[P4:%.*]] = bitcast i8* [[P3]] to i32*
; CHECK-NEXT: [[P5:%.*]] = bitcast i32* [[P4]] to i8*
; CHECK-NEXT: store i8 0, i8* [[P5]]
; CHECK-NEXT: ret void
;
%P = alloca i32, i32 4, align 1
%P1 = bitcast i32* %P to i8*
%P2 = bitcast i8* %P1 to i32*
%P2.gep = getelementptr i32, i32* %P2, i32 4
br i1 true, label %bb1, label %bb2
bb1:
%P3.3 = call i32* @return_first(i32* %P2.gep, i32* null)
%P3.1 = bitcast i32* %P3.3 to i8*
br label %bb3
bb2:
%P3.3.i = call i32* @return_second(i32* %P2.gep, i32* null)
%P3.1.i = bitcast i32* %P3.3.i to i8*
br label %bb3
bb3:
%P3 = phi i8* [ %P3.1, %bb1 ], [%P3.1.i, %bb2 ]
%P4 = bitcast i8* %P3 to i32*
%P5 = bitcast i32* %P4 to i8*
store i8 0, i8* %P5
ret void
}
define void @testA1(i32* %P) {
; CHECK-LABEL: @testA1(
; CHECK-NEXT: store i32 0, i32* [[P:%.*]]
; CHECK-NEXT: ret void
;
store i32 0, i32* %P
ret void
}
define void @testA2(i32* %P) {
; CHECK-LABEL: @testA2(
; CHECK-NEXT: [[P1:%.*]] = bitcast i32* [[P:%.*]] to i8*
; CHECK-NEXT: store i8 0, i8* [[P1]]
; CHECK-NEXT: ret void
;
%P1 = bitcast i32* %P to i8*
store i8 0, i8* %P1
ret void
}
define void @testA3(i32* %P) {
; CHECK-LABEL: @testA3(
; CHECK-NEXT: [[P1:%.*]] = bitcast i32* [[P:%.*]] to i8*
; CHECK-NEXT: [[P2:%.*]] = bitcast i8* [[P1]] to i32*
; CHECK-NEXT: [[P2_GEP:%.*]] = getelementptr i32, i32* [[P2]], i32 4
; CHECK-NEXT: [[P3:%.*]] = bitcast i32* [[P2_GEP]] to i8*
; CHECK-NEXT: [[P4:%.*]] = bitcast i8* [[P3]] to i32*
; CHECK-NEXT: [[P5:%.*]] = bitcast i32* [[P4]] to i8*
; CHECK-NEXT: store i8 0, i8* [[P5]]
; CHECK-NEXT: ret void
;
%P1 = bitcast i32* %P to i8*
%P2 = bitcast i8* %P1 to i32*
%P2.gep = getelementptr i32, i32* %P2, i32 4
%P3 = bitcast i32* %P2.gep to i8*
%P4 = bitcast i8* %P3 to i32*
%P5 = bitcast i32* %P4 to i8*
store i8 0, i8* %P5
ret void
}
define void @testA4(i32* %P) {
; CHECK-LABEL: @testA4(
; CHECK-NEXT: [[P1:%.*]] = bitcast i32* [[P:%.*]] to i8*
; CHECK-NEXT: [[P2:%.*]] = bitcast i8* [[P1]] to i32*
; CHECK-NEXT: [[P2_GEP:%.*]] = getelementptr i32, i32* [[P2]], i32 4
; CHECK-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[P3_1:%.*]] = bitcast i32* [[P2_GEP]] to i8*
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: [[P3_2:%.*]] = bitcast i32* [[P2_GEP]] to i8*
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: [[P3:%.*]] = phi i8* [ [[P3_1]], [[BB1]] ], [ [[P3_2]], [[BB2]] ]
; CHECK-NEXT: [[P4:%.*]] = bitcast i8* [[P3]] to i32*
; CHECK-NEXT: [[P5:%.*]] = bitcast i32* [[P4]] to i8*
; CHECK-NEXT: store i8 0, i8* [[P5]]
; CHECK-NEXT: ret void
;
%P1 = bitcast i32* %P to i8*
%P2 = bitcast i8* %P1 to i32*
%P2.gep = getelementptr i32, i32* %P2, i32 4
br i1 true, label %bb1, label %bb2
bb1:
%P3.1 = bitcast i32* %P2.gep to i8*
br label %bb3
bb2:
%P3.2 = bitcast i32* %P2.gep to i8*
br label %bb3
bb3:
%P3 = phi i8* [ %P3.1, %bb1 ], [%P3.2, %bb2 ]
%P4 = bitcast i8* %P3 to i32*
%P5 = bitcast i32* %P4 to i8*
store i8 0, i8* %P5
ret void
}
define void @testA5(i32* %P) {
; CHECK-LABEL: @testA5(
; CHECK-NEXT: [[P1:%.*]] = bitcast i32* [[P:%.*]] to i8*
; CHECK-NEXT: [[P2:%.*]] = bitcast i8* [[P1]] to i32*
; CHECK-NEXT: [[P2_GEP:%.*]] = getelementptr i32, i32* [[P2]], i32 4
; CHECK-NEXT: br i1 true, label [[BB1:%.*]], label [[BB2:%.*]]
; CHECK: bb1:
; CHECK-NEXT: [[P3_3:%.*]] = call i32* @return_first(i32* [[P2_GEP]], i32* null)
; CHECK-NEXT: [[P3_1:%.*]] = bitcast i32* [[P3_3]] to i8*
; CHECK-NEXT: br label [[BB3:%.*]]
; CHECK: bb2:
; CHECK-NEXT: [[P3_3_I:%.*]] = call i32* @return_second(i32* null, i32* [[P2_GEP]])
; CHECK-NEXT: [[P3_1_I:%.*]] = bitcast i32* [[P3_3_I]] to i8*
; CHECK-NEXT: br label [[BB3]]
; CHECK: bb3:
; CHECK-NEXT: [[P3:%.*]] = phi i8* [ [[P3_1]], [[BB1]] ], [ [[P3_1_I]], [[BB2]] ]
; CHECK-NEXT: [[P4:%.*]] = bitcast i8* [[P3]] to i32*
; CHECK-NEXT: [[P5:%.*]] = bitcast i32* [[P4]] to i8*
; CHECK-NEXT: store i8 0, i8* [[P5]]
; CHECK-NEXT: ret void
;
%P1 = bitcast i32* %P to i8*
%P2 = bitcast i8* %P1 to i32*
%P2.gep = getelementptr i32, i32* %P2, i32 4
br i1 true, label %bb1, label %bb2
bb1:
%P3.3 = call i32* @return_first(i32* %P2.gep, i32* null)
%P3.1 = bitcast i32* %P3.3 to i8*
br label %bb3
bb2:
%P3.3.i = call i32* @return_second(i32* null, i32* %P2.gep)
%P3.1.i = bitcast i32* %P3.3.i to i8*
br label %bb3
bb3:
%P3 = phi i8* [ %P3.1, %bb1 ], [%P3.1.i, %bb2 ]
%P4 = bitcast i8* %P3 to i32*
%P5 = bitcast i32* %P4 to i8*
store i8 0, i8* %P5
ret void
}