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c6c7bfc4d2bc37f55f57504c19d47deb7645dd76
clang-p2996/llvm/test/Transforms/SLPVectorizer/X86/undef_vect.ll
Alexey Bataev 022cc6c41e [SLP] Fix crash on propagate IR flags for undef operands of min/max 
reductions.

If both operands of the newly created SelectInst are Undefs the
resulting operation is also Undef, not SelectInst. It may cause crashes
when trying to propagate IR flags because function expects exactly
SelectInst instruction, nothing else.

llvm-svn: 314323
2017-09-27 17:42:49 +00:00

87 lines
8.1 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -slp-vectorizer -slp-vectorize-hor -slp-vectorize-hor-store -S < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=bdver2 | FileCheck %s
%"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76" = type { i32, i32 }
define void @_Z2azv() local_unnamed_addr {
; CHECK-LABEL: @_Z2azv(
; CHECK-NEXT: for.body.lr.ph:
; CHECK-NEXT: [[DOTSROA_CAST_4:%.*]] = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 4, i32 0
; CHECK-NEXT: [[DOTSROA_RAW_IDX_4:%.*]] = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 4, i32 1
; CHECK-NEXT: [[DOTSROA_CAST_5:%.*]] = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 5, i32 0
; CHECK-NEXT: [[DOTSROA_RAW_IDX_5:%.*]] = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 5, i32 1
; CHECK-NEXT: [[DOTSROA_CAST_6:%.*]] = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 6, i32 0
; CHECK-NEXT: [[DOTSROA_RAW_IDX_6:%.*]] = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 6, i32 1
; CHECK-NEXT: [[DOTSROA_CAST_7:%.*]] = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 7, i32 0
; CHECK-NEXT: [[DOTSROA_RAW_IDX_7:%.*]] = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 7, i32 1
; CHECK-NEXT: [[TMP0:%.*]] = bitcast i32* [[DOTSROA_CAST_4]] to <8 x i32>*
; CHECK-NEXT: [[TMP1:%.*]] = load <8 x i32>, <8 x i32>* [[TMP0]], align 4
; CHECK-NEXT: [[CMP_I1_4:%.*]] = icmp slt i32 undef, undef
; CHECK-NEXT: [[DOTSROA_SPECULATED_4:%.*]] = select i1 [[CMP_I1_4]], i32 undef, i32 undef
; CHECK-NEXT: [[CMP_I1_5:%.*]] = icmp slt i32 [[DOTSROA_SPECULATED_4]], undef
; CHECK-NEXT: [[DOTSROA_SPECULATED_5:%.*]] = select i1 [[CMP_I1_5]], i32 undef, i32 [[DOTSROA_SPECULATED_4]]
; CHECK-NEXT: [[CMP_I1_6:%.*]] = icmp slt i32 [[DOTSROA_SPECULATED_5]], undef
; CHECK-NEXT: [[DOTSROA_SPECULATED_6:%.*]] = select i1 [[CMP_I1_6]], i32 undef, i32 [[DOTSROA_SPECULATED_5]]
; CHECK-NEXT: [[CMP_I1_7:%.*]] = icmp slt i32 [[DOTSROA_SPECULATED_6]], undef
; CHECK-NEXT: [[DOTSROA_SPECULATED_7:%.*]] = select i1 [[CMP_I1_7]], i32 undef, i32 [[DOTSROA_SPECULATED_6]]
; CHECK-NEXT: [[CMP_I1_8:%.*]] = icmp slt i32 undef, undef
; CHECK-NEXT: [[RDX_SHUF:%.*]] = shufflevector <8 x i32> [[TMP1]], <8 x i32> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
; CHECK-NEXT: [[RDX_MINMAX_CMP:%.*]] = icmp sgt <8 x i32> [[TMP1]], [[RDX_SHUF]]
; CHECK-NEXT: [[RDX_MINMAX_SELECT:%.*]] = select <8 x i1> [[RDX_MINMAX_CMP]], <8 x i32> [[TMP1]], <8 x i32> [[RDX_SHUF]]
; CHECK-NEXT: [[RDX_SHUF1:%.*]] = shufflevector <8 x i32> [[RDX_MINMAX_SELECT]], <8 x i32> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
; CHECK-NEXT: [[RDX_MINMAX_CMP2:%.*]] = icmp sgt <8 x i32> [[RDX_MINMAX_SELECT]], [[RDX_SHUF1]]
; CHECK-NEXT: [[RDX_MINMAX_SELECT3:%.*]] = select <8 x i1> [[RDX_MINMAX_CMP2]], <8 x i32> [[RDX_MINMAX_SELECT]], <8 x i32> [[RDX_SHUF1]]
; CHECK-NEXT: [[RDX_SHUF4:%.*]] = shufflevector <8 x i32> [[RDX_MINMAX_SELECT3]], <8 x i32> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
; CHECK-NEXT: [[RDX_MINMAX_CMP5:%.*]] = icmp sgt <8 x i32> [[RDX_MINMAX_SELECT3]], [[RDX_SHUF4]]
; CHECK-NEXT: [[RDX_MINMAX_SELECT6:%.*]] = select <8 x i1> [[RDX_MINMAX_CMP5]], <8 x i32> [[RDX_MINMAX_SELECT3]], <8 x i32> [[RDX_SHUF4]]
; CHECK-NEXT: [[TMP2:%.*]] = extractelement <8 x i32> [[RDX_MINMAX_SELECT6]], i32 0
; CHECK-NEXT: [[TMP3:%.*]] = icmp sgt i32 [[TMP2]], undef
; CHECK-NEXT: [[OP_EXTRA:%.*]] = select i1 [[TMP3]], i32 [[TMP2]], i32 undef
; CHECK-NEXT: [[TMP4:%.*]] = icmp sgt i32 [[OP_EXTRA]], undef
; CHECK-NEXT: [[OP_EXTRA7:%.*]] = select i1 [[TMP4]], i32 [[OP_EXTRA]], i32 undef
; CHECK-NEXT: [[DOTSROA_SPECULATED_8:%.*]] = select i1 [[CMP_I1_8]], i32 undef, i32 undef
; CHECK-NEXT: [[DOTSROA_SPECULATED_9:%.*]] = select i1 undef, i32 undef, i32 [[OP_EXTRA7]]
; CHECK-NEXT: [[CMP_I1_10:%.*]] = icmp slt i32 [[DOTSROA_SPECULATED_9]], undef
; CHECK-NEXT: ret void
;
for.body.lr.ph:
%.sroa_cast.4 = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 4, i32 0
%retval.sroa.0.0.copyload.i5.4 = load i32, i32* %.sroa_cast.4, align 4
%.sroa_raw_idx.4 = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 4, i32 1
%retval.sroa.0.0.copyload.i7.4 = load i32, i32* %.sroa_raw_idx.4, align 4
%cmp.i2.4 = icmp slt i32 %retval.sroa.0.0.copyload.i5.4, %retval.sroa.0.0.copyload.i7.4
%0 = select i1 %cmp.i2.4, i32 %retval.sroa.0.0.copyload.i7.4, i32 %retval.sroa.0.0.copyload.i5.4
%cmp.i1.4 = icmp slt i32 undef, %0
%.sroa.speculated.4 = select i1 %cmp.i1.4, i32 %0, i32 undef
%.sroa_cast.5 = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 5, i32 0
%retval.sroa.0.0.copyload.i5.5 = load i32, i32* %.sroa_cast.5, align 4
%.sroa_raw_idx.5 = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 5, i32 1
%retval.sroa.0.0.copyload.i7.5 = load i32, i32* %.sroa_raw_idx.5, align 4
%cmp.i2.5 = icmp slt i32 %retval.sroa.0.0.copyload.i5.5, %retval.sroa.0.0.copyload.i7.5
%1 = select i1 %cmp.i2.5, i32 %retval.sroa.0.0.copyload.i7.5, i32 %retval.sroa.0.0.copyload.i5.5
%cmp.i1.5 = icmp slt i32 %.sroa.speculated.4, %1
%.sroa.speculated.5 = select i1 %cmp.i1.5, i32 %1, i32 %.sroa.speculated.4
%.sroa_cast.6 = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 6, i32 0
%retval.sroa.0.0.copyload.i5.6 = load i32, i32* %.sroa_cast.6, align 4
%.sroa_raw_idx.6 = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 6, i32 1
%retval.sroa.0.0.copyload.i7.6 = load i32, i32* %.sroa_raw_idx.6, align 4
%cmp.i2.6 = icmp slt i32 %retval.sroa.0.0.copyload.i5.6, %retval.sroa.0.0.copyload.i7.6
%2 = select i1 %cmp.i2.6, i32 %retval.sroa.0.0.copyload.i7.6, i32 %retval.sroa.0.0.copyload.i5.6
%cmp.i1.6 = icmp slt i32 %.sroa.speculated.5, %2
%.sroa.speculated.6 = select i1 %cmp.i1.6, i32 %2, i32 %.sroa.speculated.5
%.sroa_cast.7 = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 7, i32 0
%retval.sroa.0.0.copyload.i5.7 = load i32, i32* %.sroa_cast.7, align 4
%.sroa_raw_idx.7 = getelementptr inbounds %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76", %"struct.std::h.0.4.8.12.16.20.24.28.248.0.1.2.3.76"* undef, i64 7, i32 1
%retval.sroa.0.0.copyload.i7.7 = load i32, i32* %.sroa_raw_idx.7, align 4
%cmp.i2.7 = icmp slt i32 %retval.sroa.0.0.copyload.i5.7, %retval.sroa.0.0.copyload.i7.7
%3 = select i1 %cmp.i2.7, i32 %retval.sroa.0.0.copyload.i7.7, i32 %retval.sroa.0.0.copyload.i5.7
%cmp.i1.7 = icmp slt i32 %.sroa.speculated.6, %3
%.sroa.speculated.7 = select i1 %cmp.i1.7, i32 %3, i32 %.sroa.speculated.6
%cmp.i1.8 = icmp slt i32 %.sroa.speculated.7, undef
%.sroa.speculated.8 = select i1 %cmp.i1.8, i32 undef, i32 %.sroa.speculated.7
%.sroa.speculated.9 = select i1 undef, i32 undef, i32 %.sroa.speculated.8
%cmp.i1.10 = icmp slt i32 %.sroa.speculated.9, undef
ret void
}
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