Index: llvm/lib/Analysis/IVDescriptors.cpp =================================================================== --- llvm/lib/Analysis/IVDescriptors.cpp +++ llvm/lib/Analysis/IVDescriptors.cpp @@ -274,7 +274,7 @@ } else if (RecurrenceType->isIntegerTy()) { if (!isIntegerRecurrenceKind(Kind)) return false; - if (isArithmeticRecurrenceKind(Kind)) + if (!isMinMaxRecurrenceKind(Kind)) Start = lookThroughAnd(Phi, RecurrenceType, VisitedInsts, CastInsts); } else { // Pointer min/max may exist, but it is not supported as a reduction op. Index: llvm/test/Transforms/LoopVectorize/reduction-inloop-pred.ll =================================================================== --- llvm/test/Transforms/LoopVectorize/reduction-inloop-pred.ll +++ llvm/test/Transforms/LoopVectorize/reduction-inloop-pred.ll @@ -1541,72 +1541,69 @@ ; CHECK: vector.body: ; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_LOAD_CONTINUE6:%.*]] ] ; CHECK-NEXT: [[VEC_IND:%.*]] = phi <4 x i32> [ , [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[PRED_LOAD_CONTINUE6]] ] -; CHECK-NEXT: [[VEC_PHI:%.*]] = phi i32 [ 255, [[VECTOR_PH]] ], [ [[TMP34:%.*]], [[PRED_LOAD_CONTINUE6]] ] +; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x i32> [ , [[VECTOR_PH]] ], [ [[TMP29:%.*]], [[PRED_LOAD_CONTINUE6]] ] ; CHECK-NEXT: [[TMP0:%.*]] = icmp ult <4 x i32> [[VEC_IND]], -; CHECK-NEXT: [[TMP1:%.*]] = select <4 x i1> [[TMP0]], <4 x i32> , <4 x i32> -; CHECK-NEXT: [[TMP2:%.*]] = call i32 @llvm.vector.reduce.and.v4i32(<4 x i32> [[TMP1]]) -; CHECK-NEXT: [[TMP3:%.*]] = and i32 [[TMP2]], [[VEC_PHI]] -; CHECK-NEXT: [[TMP4:%.*]] = extractelement <4 x i1> [[TMP0]], i32 0 -; CHECK-NEXT: br i1 [[TMP4]], label [[PRED_LOAD_IF:%.*]], label [[PRED_LOAD_CONTINUE:%.*]] +; CHECK-NEXT: [[TMP1:%.*]] = extractelement <4 x i1> [[TMP0]], i32 0 +; CHECK-NEXT: br i1 [[TMP1]], label [[PRED_LOAD_IF:%.*]], label [[PRED_LOAD_CONTINUE:%.*]] ; CHECK: pred.load.if: -; CHECK-NEXT: [[TMP5:%.*]] = sext i32 [[INDEX]] to i64 -; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i8, i8* [[A:%.*]], i64 [[TMP5]] -; CHECK-NEXT: [[TMP7:%.*]] = load i8, i8* [[TMP6]], align 4 -; CHECK-NEXT: [[TMP8:%.*]] = insertelement <4 x i8> poison, i8 [[TMP7]], i32 0 +; CHECK-NEXT: [[TMP2:%.*]] = sext i32 [[INDEX]] to i64 +; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i8, i8* [[A:%.*]], i64 [[TMP2]] +; CHECK-NEXT: [[TMP4:%.*]] = load i8, i8* [[TMP3]], align 4 +; CHECK-NEXT: [[TMP5:%.*]] = insertelement <4 x i8> poison, i8 [[TMP4]], i32 0 ; CHECK-NEXT: br label [[PRED_LOAD_CONTINUE]] ; CHECK: pred.load.continue: -; CHECK-NEXT: [[TMP9:%.*]] = phi <4 x i8> [ poison, [[VECTOR_BODY]] ], [ [[TMP8]], [[PRED_LOAD_IF]] ] -; CHECK-NEXT: [[TMP10:%.*]] = extractelement <4 x i1> [[TMP0]], i32 1 -; CHECK-NEXT: br i1 [[TMP10]], label [[PRED_LOAD_IF1:%.*]], label [[PRED_LOAD_CONTINUE2:%.*]] +; CHECK-NEXT: [[TMP6:%.*]] = phi <4 x i8> [ poison, [[VECTOR_BODY]] ], [ [[TMP5]], [[PRED_LOAD_IF]] ] +; CHECK-NEXT: [[TMP7:%.*]] = extractelement <4 x i1> [[TMP0]], i32 1 +; CHECK-NEXT: br i1 [[TMP7]], label [[PRED_LOAD_IF1:%.*]], label [[PRED_LOAD_CONTINUE2:%.*]] ; CHECK: pred.load.if1: -; CHECK-NEXT: [[TMP11:%.*]] = or i32 [[INDEX]], 1 -; CHECK-NEXT: [[TMP12:%.*]] = sext i32 [[TMP11]] to i64 -; CHECK-NEXT: [[TMP13:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 [[TMP12]] -; CHECK-NEXT: [[TMP14:%.*]] = load i8, i8* [[TMP13]], align 4 -; CHECK-NEXT: [[TMP15:%.*]] = insertelement <4 x i8> [[TMP9]], i8 [[TMP14]], i32 1 +; CHECK-NEXT: [[TMP8:%.*]] = or i32 [[INDEX]], 1 +; CHECK-NEXT: [[TMP9:%.*]] = sext i32 [[TMP8]] to i64 +; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 [[TMP9]] +; CHECK-NEXT: [[TMP11:%.*]] = load i8, i8* [[TMP10]], align 4 +; CHECK-NEXT: [[TMP12:%.*]] = insertelement <4 x i8> [[TMP6]], i8 [[TMP11]], i32 1 ; CHECK-NEXT: br label [[PRED_LOAD_CONTINUE2]] ; CHECK: pred.load.continue2: -; CHECK-NEXT: [[TMP16:%.*]] = phi <4 x i8> [ [[TMP9]], [[PRED_LOAD_CONTINUE]] ], [ [[TMP15]], [[PRED_LOAD_IF1]] ] -; CHECK-NEXT: [[TMP17:%.*]] = extractelement <4 x i1> [[TMP0]], i32 2 -; CHECK-NEXT: br i1 [[TMP17]], label [[PRED_LOAD_IF3:%.*]], label [[PRED_LOAD_CONTINUE4:%.*]] +; CHECK-NEXT: [[TMP13:%.*]] = phi <4 x i8> [ [[TMP6]], [[PRED_LOAD_CONTINUE]] ], [ [[TMP12]], [[PRED_LOAD_IF1]] ] +; CHECK-NEXT: [[TMP14:%.*]] = extractelement <4 x i1> [[TMP0]], i32 2 +; CHECK-NEXT: br i1 [[TMP14]], label [[PRED_LOAD_IF3:%.*]], label [[PRED_LOAD_CONTINUE4:%.*]] ; CHECK: pred.load.if3: -; CHECK-NEXT: [[TMP18:%.*]] = or i32 [[INDEX]], 2 -; CHECK-NEXT: [[TMP19:%.*]] = sext i32 [[TMP18]] to i64 -; CHECK-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 [[TMP19]] -; CHECK-NEXT: [[TMP21:%.*]] = load i8, i8* [[TMP20]], align 4 -; CHECK-NEXT: [[TMP22:%.*]] = insertelement <4 x i8> [[TMP16]], i8 [[TMP21]], i32 2 +; CHECK-NEXT: [[TMP15:%.*]] = or i32 [[INDEX]], 2 +; CHECK-NEXT: [[TMP16:%.*]] = sext i32 [[TMP15]] to i64 +; CHECK-NEXT: [[TMP17:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 [[TMP16]] +; CHECK-NEXT: [[TMP18:%.*]] = load i8, i8* [[TMP17]], align 4 +; CHECK-NEXT: [[TMP19:%.*]] = insertelement <4 x i8> [[TMP13]], i8 [[TMP18]], i32 2 ; CHECK-NEXT: br label [[PRED_LOAD_CONTINUE4]] ; CHECK: pred.load.continue4: -; CHECK-NEXT: [[TMP23:%.*]] = phi <4 x i8> [ [[TMP16]], [[PRED_LOAD_CONTINUE2]] ], [ [[TMP22]], [[PRED_LOAD_IF3]] ] -; CHECK-NEXT: [[TMP24:%.*]] = extractelement <4 x i1> [[TMP0]], i32 3 -; CHECK-NEXT: br i1 [[TMP24]], label [[PRED_LOAD_IF5:%.*]], label [[PRED_LOAD_CONTINUE6]] +; CHECK-NEXT: [[TMP20:%.*]] = phi <4 x i8> [ [[TMP13]], [[PRED_LOAD_CONTINUE2]] ], [ [[TMP19]], [[PRED_LOAD_IF3]] ] +; CHECK-NEXT: [[TMP21:%.*]] = extractelement <4 x i1> [[TMP0]], i32 3 +; CHECK-NEXT: br i1 [[TMP21]], label [[PRED_LOAD_IF5:%.*]], label [[PRED_LOAD_CONTINUE6]] ; CHECK: pred.load.if5: -; CHECK-NEXT: [[TMP25:%.*]] = or i32 [[INDEX]], 3 -; CHECK-NEXT: [[TMP26:%.*]] = sext i32 [[TMP25]] to i64 -; CHECK-NEXT: [[TMP27:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 [[TMP26]] -; CHECK-NEXT: [[TMP28:%.*]] = load i8, i8* [[TMP27]], align 4 -; CHECK-NEXT: [[TMP29:%.*]] = insertelement <4 x i8> [[TMP23]], i8 [[TMP28]], i32 3 +; CHECK-NEXT: [[TMP22:%.*]] = or i32 [[INDEX]], 3 +; CHECK-NEXT: [[TMP23:%.*]] = sext i32 [[TMP22]] to i64 +; CHECK-NEXT: [[TMP24:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 [[TMP23]] +; CHECK-NEXT: [[TMP25:%.*]] = load i8, i8* [[TMP24]], align 4 +; CHECK-NEXT: [[TMP26:%.*]] = insertelement <4 x i8> [[TMP20]], i8 [[TMP25]], i32 3 ; CHECK-NEXT: br label [[PRED_LOAD_CONTINUE6]] ; CHECK: pred.load.continue6: -; CHECK-NEXT: [[TMP30:%.*]] = phi <4 x i8> [ [[TMP23]], [[PRED_LOAD_CONTINUE4]] ], [ [[TMP29]], [[PRED_LOAD_IF5]] ] -; CHECK-NEXT: [[TMP31:%.*]] = zext <4 x i8> [[TMP30]] to <4 x i32> -; CHECK-NEXT: [[TMP32:%.*]] = select <4 x i1> [[TMP0]], <4 x i32> [[TMP31]], <4 x i32> -; CHECK-NEXT: [[TMP33:%.*]] = call i32 @llvm.vector.reduce.and.v4i32(<4 x i32> [[TMP32]]) -; CHECK-NEXT: [[TMP34]] = and i32 [[TMP33]], [[TMP3]] +; CHECK-NEXT: [[TMP27:%.*]] = phi <4 x i8> [ [[TMP20]], [[PRED_LOAD_CONTINUE4]] ], [ [[TMP26]], [[PRED_LOAD_IF5]] ] +; CHECK-NEXT: [[TMP28:%.*]] = zext <4 x i8> [[TMP27]] to <4 x i32> +; CHECK-NEXT: [[TMP29]] = and <4 x i32> [[VEC_PHI]], [[TMP28]] ; CHECK-NEXT: [[INDEX_NEXT]] = add i32 [[INDEX]], 4 ; CHECK-NEXT: [[VEC_IND_NEXT]] = add <4 x i32> [[VEC_IND]], -; CHECK-NEXT: [[TMP35:%.*]] = icmp eq i32 [[INDEX_NEXT]], 260 -; CHECK-NEXT: br i1 [[TMP35]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP32:![0-9]+]] +; CHECK-NEXT: [[TMP30:%.*]] = icmp eq i32 [[INDEX_NEXT]], 260 +; CHECK-NEXT: br i1 [[TMP30]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP32:![0-9]+]] ; CHECK: middle.block: +; CHECK-NEXT: [[TMP31:%.*]] = select <4 x i1> [[TMP0]], <4 x i32> [[TMP29]], <4 x i32> [[VEC_PHI]] +; CHECK-NEXT: [[TMP32:%.*]] = trunc <4 x i32> [[TMP31]] to <4 x i8> +; CHECK-NEXT: [[TMP33:%.*]] = call i8 @llvm.vector.reduce.and.v4i8(<4 x i8> [[TMP32]]) ; CHECK-NEXT: br i1 true, label [[DOT_CRIT_EDGE:%.*]], label [[SCALAR_PH]] ; CHECK: scalar.ph: ; CHECK-NEXT: br label [[DOTLR_PH:%.*]] ; CHECK: .lr.ph: ; CHECK-NEXT: br i1 undef, label [[DOT_CRIT_EDGE]], label [[DOTLR_PH]], !llvm.loop [[LOOP33:![0-9]+]] ; CHECK: ._crit_edge: -; CHECK-NEXT: [[SUM_0_LCSSA:%.*]] = phi i32 [ undef, [[DOTLR_PH]] ], [ [[TMP34]], [[MIDDLE_BLOCK]] ] -; CHECK-NEXT: [[RET:%.*]] = trunc i32 [[SUM_0_LCSSA]] to i8 -; CHECK-NEXT: ret i8 [[RET]] +; CHECK-NEXT: [[SUM_0_LCSSA:%.*]] = phi i8 [ undef, [[DOTLR_PH]] ], [ [[TMP33]], [[MIDDLE_BLOCK]] ] +; CHECK-NEXT: ret i8 [[SUM_0_LCSSA]] ; entry: br label %.lr.ph Index: llvm/test/Transforms/LoopVectorize/reduction-inloop.ll =================================================================== --- llvm/test/Transforms/LoopVectorize/reduction-inloop.ll +++ llvm/test/Transforms/LoopVectorize/reduction-inloop.ll @@ -1052,28 +1052,25 @@ ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] ; CHECK: vector.body: ; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] -; CHECK-NEXT: [[VEC_PHI:%.*]] = phi i32 [ 255, [[VECTOR_PH]] ], [ [[TMP6:%.*]], [[VECTOR_BODY]] ] -; CHECK-NEXT: [[TMP0:%.*]] = and i32 [[VEC_PHI]], 255 -; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[INDEX]] to i64 -; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i8, i8* [[A:%.*]], i64 [[TMP1]] -; CHECK-NEXT: [[TMP3:%.*]] = bitcast i8* [[TMP2]] to <4 x i8>* -; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i8>, <4 x i8>* [[TMP3]], align 4 -; CHECK-NEXT: [[TMP4:%.*]] = zext <4 x i8> [[WIDE_LOAD]] to <4 x i32> -; CHECK-NEXT: [[TMP5:%.*]] = call i32 @llvm.vector.reduce.and.v4i32(<4 x i32> [[TMP4]]) -; CHECK-NEXT: [[TMP6]] = and i32 [[TMP5]], [[TMP0]] +; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x i8> [ , [[VECTOR_PH]] ], [ [[TMP3:%.*]], [[VECTOR_BODY]] ] +; CHECK-NEXT: [[TMP0:%.*]] = sext i32 [[INDEX]] to i64 +; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i8, i8* [[A:%.*]], i64 [[TMP0]] +; CHECK-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to <4 x i8>* +; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i8>, <4 x i8>* [[TMP2]], align 4 +; CHECK-NEXT: [[TMP3]] = and <4 x i8> [[VEC_PHI]], [[WIDE_LOAD]] ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4 -; CHECK-NEXT: [[TMP7:%.*]] = icmp eq i32 [[INDEX_NEXT]], 256 -; CHECK-NEXT: br i1 [[TMP7]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP38:![0-9]+]] +; CHECK-NEXT: [[TMP4:%.*]] = icmp eq i32 [[INDEX_NEXT]], 256 +; CHECK-NEXT: br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP38:![0-9]+]] ; CHECK: middle.block: +; CHECK-NEXT: [[TMP5:%.*]] = call i8 @llvm.vector.reduce.and.v4i8(<4 x i8> [[TMP3]]) ; CHECK-NEXT: br i1 true, label [[DOT_CRIT_EDGE:%.*]], label [[SCALAR_PH]] ; CHECK: scalar.ph: ; CHECK-NEXT: br label [[DOTLR_PH:%.*]] ; CHECK: .lr.ph: ; CHECK-NEXT: br i1 undef, label [[DOT_CRIT_EDGE]], label [[DOTLR_PH]], !llvm.loop [[LOOP39:![0-9]+]] ; CHECK: ._crit_edge: -; CHECK-NEXT: [[SUM_0_LCSSA:%.*]] = phi i32 [ undef, [[DOTLR_PH]] ], [ [[TMP6]], [[MIDDLE_BLOCK]] ] -; CHECK-NEXT: [[RET:%.*]] = trunc i32 [[SUM_0_LCSSA]] to i8 -; CHECK-NEXT: ret i8 [[RET]] +; CHECK-NEXT: [[SUM_0_LCSSA:%.*]] = phi i8 [ undef, [[DOTLR_PH]] ], [ [[TMP5]], [[MIDDLE_BLOCK]] ] +; CHECK-NEXT: ret i8 [[SUM_0_LCSSA]] ; entry: br label %.lr.ph Index: llvm/test/Transforms/LoopVectorize/trunc-reductions.ll =================================================================== --- /dev/null +++ llvm/test/Transforms/LoopVectorize/trunc-reductions.ll @@ -0,0 +1,250 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt -loop-vectorize -dce -instcombine -force-vector-interleave=1 -force-vector-width=8 -S < %s | FileCheck %s + +define i8 @reduction_and_trunc(i8* noalias nocapture %ptr) { +; CHECK-LABEL: @reduction_and_trunc( +; 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 i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] +; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <8 x i8> [ , [[VECTOR_PH]] ], [ [[TMP3:%.*]], [[VECTOR_BODY]] ] +; CHECK-NEXT: [[TMP0:%.*]] = sext i32 [[INDEX]] to i64 +; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i8, i8* [[PTR:%.*]], i64 [[TMP0]] +; CHECK-NEXT: [[TMP2:%.*]] = bitcast i8* [[TMP1]] to <8 x i8>* +; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <8 x i8>, <8 x i8>* [[TMP2]], align 1 +; CHECK-NEXT: [[TMP3]] = and <8 x i8> [[VEC_PHI]], [[WIDE_LOAD]] +; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 8 +; CHECK-NEXT: [[TMP4:%.*]] = icmp eq i32 [[INDEX_NEXT]], 256 +; CHECK-NEXT: br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] +; CHECK: middle.block: +; CHECK-NEXT: [[TMP5:%.*]] = call i8 @llvm.vector.reduce.and.v8i8(<8 x i8> [[TMP3]]) +; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] +; CHECK: scalar.ph: +; CHECK-NEXT: br label [[FOR_BODY:%.*]] +; CHECK: for.body: +; CHECK-NEXT: br i1 undef, label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]] +; CHECK: for.end: +; CHECK-NEXT: [[AND_LCSSA_OFF0:%.*]] = phi i8 [ undef, [[FOR_BODY]] ], [ [[TMP5]], [[MIDDLE_BLOCK]] ] +; CHECK-NEXT: ret i8 [[AND_LCSSA_OFF0]] +; +entry: + br label %for.body + +for.body: + %iv = phi i32 [ %iv.next, %for.body ], [ 0, %entry ] + %sum.02p = phi i32 [ %and, %for.body ], [ 0, %entry ] + %sum.02 = and i32 %sum.02p, 255 + %gep = getelementptr inbounds i8, i8* %ptr, i32 %iv + %load = load i8, i8* %gep + %ext = zext i8 %load to i32 + %and = and i32 %sum.02, %ext + %iv.next = add i32 %iv, 1 + %exitcond = icmp eq i32 %iv.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + %ret = trunc i32 %and to i8 + ret i8 %ret +} + +define i16 @reduction_or_trunc(i16* noalias nocapture %ptr) { +; CHECK-LABEL: @reduction_or_trunc( +; 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 i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] +; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <8 x i16> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP3:%.*]], [[VECTOR_BODY]] ] +; CHECK-NEXT: [[TMP0:%.*]] = sext i32 [[INDEX]] to i64 +; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i16, i16* [[PTR:%.*]], i64 [[TMP0]] +; CHECK-NEXT: [[TMP2:%.*]] = bitcast i16* [[TMP1]] to <8 x i16>* +; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <8 x i16>, <8 x i16>* [[TMP2]], align 2 +; CHECK-NEXT: [[TMP3]] = or <8 x i16> [[VEC_PHI]], [[WIDE_LOAD]] +; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 8 +; CHECK-NEXT: [[TMP4:%.*]] = icmp eq i32 [[INDEX_NEXT]], 256 +; CHECK-NEXT: br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]] +; CHECK: middle.block: +; CHECK-NEXT: [[TMP5:%.*]] = call i16 @llvm.vector.reduce.or.v8i16(<8 x i16> [[TMP3]]) +; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] +; CHECK: scalar.ph: +; CHECK-NEXT: br label [[FOR_BODY:%.*]] +; CHECK: for.body: +; CHECK-NEXT: br i1 undef, label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] +; CHECK: for.end: +; CHECK-NEXT: [[XOR_LCSSA_OFF0:%.*]] = phi i16 [ undef, [[FOR_BODY]] ], [ [[TMP5]], [[MIDDLE_BLOCK]] ] +; CHECK-NEXT: ret i16 [[XOR_LCSSA_OFF0]] +; +entry: + br label %for.body + +for.body: + %iv = phi i32 [ %iv.next, %for.body ], [ 0, %entry ] + %sum.02p = phi i32 [ %xor, %for.body ], [ 0, %entry ] + %sum.02 = and i32 %sum.02p, 65535 + %gep = getelementptr inbounds i16, i16* %ptr, i32 %iv + %load = load i16, i16* %gep + %ext = zext i16 %load to i32 + %xor = or i32 %sum.02, %ext + %iv.next = add i32 %iv, 1 + %exitcond = icmp eq i32 %iv.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + %ret = trunc i32 %xor to i16 + ret i16 %ret +} + +define i16 @reduction_xor_trunc(i16* noalias nocapture %ptr) { +; CHECK-LABEL: @reduction_xor_trunc( +; 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 i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] +; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <8 x i16> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP3:%.*]], [[VECTOR_BODY]] ] +; CHECK-NEXT: [[TMP0:%.*]] = sext i32 [[INDEX]] to i64 +; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i16, i16* [[PTR:%.*]], i64 [[TMP0]] +; CHECK-NEXT: [[TMP2:%.*]] = bitcast i16* [[TMP1]] to <8 x i16>* +; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <8 x i16>, <8 x i16>* [[TMP2]], align 2 +; CHECK-NEXT: [[TMP3]] = xor <8 x i16> [[VEC_PHI]], [[WIDE_LOAD]] +; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 8 +; CHECK-NEXT: [[TMP4:%.*]] = icmp eq i32 [[INDEX_NEXT]], 256 +; CHECK-NEXT: br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]] +; CHECK: middle.block: +; CHECK-NEXT: [[TMP5:%.*]] = call i16 @llvm.vector.reduce.xor.v8i16(<8 x i16> [[TMP3]]) +; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] +; CHECK: scalar.ph: +; CHECK-NEXT: br label [[FOR_BODY:%.*]] +; CHECK: for.body: +; CHECK-NEXT: br i1 undef, label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]] +; CHECK: for.end: +; CHECK-NEXT: [[XOR_LCSSA_OFF0:%.*]] = phi i16 [ undef, [[FOR_BODY]] ], [ [[TMP5]], [[MIDDLE_BLOCK]] ] +; CHECK-NEXT: ret i16 [[XOR_LCSSA_OFF0]] +; +entry: + br label %for.body + +for.body: + %iv = phi i32 [ %iv.next, %for.body ], [ 0, %entry ] + %sum.02p = phi i32 [ %xor, %for.body ], [ 0, %entry ] + %sum.02 = and i32 %sum.02p, 65535 + %gep = getelementptr inbounds i16, i16* %ptr, i32 %iv + %load = load i16, i16* %gep + %ext = zext i16 %load to i32 + %xor = xor i32 %sum.02, %ext + %iv.next = add i32 %iv, 1 + %exitcond = icmp eq i32 %iv.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + %ret = trunc i32 %xor to i16 + ret i16 %ret +} + +define i8 @reduction_smin_trunc(i8* noalias nocapture %ptr) { +; CHECK-LABEL: @reduction_smin_trunc( +; CHECK-NOT: vector.body +; CHECK-NOT: <8 x +; CHECK: ret +entry: + br label %for.body + +for.body: + %iv = phi i32 [ %iv.next, %for.body ], [ 0, %entry ] + %sum.02p = phi i32 [ %min, %for.body ], [ 256, %entry ] + %sum.02 = and i32 %sum.02p, 255 + %gep = getelementptr inbounds i8, i8* %ptr, i32 %iv + %load = load i8, i8* %gep + %ext = sext i8 %load to i32 + %icmp = icmp slt i32 %sum.02, %ext + %min = select i1 %icmp, i32 %sum.02, i32 %ext + %iv.next = add i32 %iv, 1 + %exitcond = icmp eq i32 %iv.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + %ret = trunc i32 %min to i8 + ret i8 %ret +} + +define i8 @reduction_umin_trunc(i8* noalias nocapture %ptr) { +; CHECK-LABEL: @reduction_umin_trunc( +; CHECK-NOT: vector.body +; CHECK-NOT: <8 x +; CHECK: ret +entry: + br label %for.body + +for.body: + %iv = phi i32 [ %iv.next, %for.body ], [ 0, %entry ] + %sum.02p = phi i32 [ %min, %for.body ], [ 0, %entry ] + %sum.02 = and i32 %sum.02p, 255 + %gep = getelementptr inbounds i8, i8* %ptr, i32 %iv + %load = load i8, i8* %gep + %ext = zext i8 %load to i32 + %icmp = icmp ult i32 %sum.02, %ext + %min = select i1 %icmp, i32 %sum.02, i32 %ext + %iv.next = add i32 %iv, 1 + %exitcond = icmp eq i32 %iv.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + %ret = trunc i32 %min to i8 + ret i8 %ret +} + +define i16 @reduction_smax_trunc(i16* noalias nocapture %ptr) { +; CHECK-LABEL: @reduction_smax_trunc( +; CHECK-NOT: vector.body +; CHECK-NOT: <8 x +; CHECK: ret +entry: + br label %for.body + +for.body: + %iv = phi i32 [ %iv.next, %for.body ], [ 0, %entry ] + %sum.02p = phi i32 [ %min, %for.body ], [ 0, %entry ] + %sum.02 = and i32 %sum.02p, 65535 + %gep = getelementptr inbounds i16, i16* %ptr, i32 %iv + %load = load i16, i16* %gep + %ext = sext i16 %load to i32 + %icmp = icmp sgt i32 %sum.02, %ext + %min = select i1 %icmp, i32 %sum.02, i32 %ext + %iv.next = add i32 %iv, 1 + %exitcond = icmp eq i32 %iv.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + %ret = trunc i32 %min to i16 + ret i16 %ret +} + +define i16 @reduction_umax_trunc(i16* noalias nocapture %ptr) { +; CHECK-LABEL: @reduction_umax_trunc( +; CHECK-NOT: vector.body +; CHECK-NOT: <8 x +; CHECK: ret +entry: + br label %for.body + +for.body: + %iv = phi i32 [ %iv.next, %for.body ], [ 0, %entry ] + %sum.02p = phi i32 [ %min, %for.body ], [ 0, %entry ] + %sum.02 = and i32 %sum.02p, 65535 + %gep = getelementptr inbounds i16, i16* %ptr, i32 %iv + %load = load i16, i16* %gep + %ext = zext i16 %load to i32 + %icmp = icmp ugt i32 %sum.02, %ext + %min = select i1 %icmp, i32 %sum.02, i32 %ext + %iv.next = add i32 %iv, 1 + %exitcond = icmp eq i32 %iv.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + %ret = trunc i32 %min to i16 + ret i16 %ret +}