b505fd559d
Gather nodes are vectorized as simply vector of the scalars instead of relying on the actual node. It leads to the fact that in some cases we may miss incorrect transformation (non-matching set of scalars is just ended as a gather node instead of possible vector/gather node). Better to rely on the actual nodes, it allows to improve stability and better detect missed cases. Differential Revision: https://reviews.llvm.org/D135174
38 lines
1.9 KiB
LLVM
38 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -slp-vectorizer -dce -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
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; int foo(double * restrict A, double * restrict B, double G) {
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; A[0] = (B[10] ? G : 1);
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; A[1] = (B[11] ? G : 1);
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; }
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define i32 @foo(double* noalias nocapture %A, double* noalias nocapture %B, double %G) {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double, double* [[B:%.*]], i64 10
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; CHECK-NEXT: [[TMP0:%.*]] = bitcast double* [[ARRAYIDX]] to <2 x double>*
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; CHECK-NEXT: [[TMP1:%.*]] = load <2 x double>, <2 x double>* [[TMP0]], align 8
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; CHECK-NEXT: [[TMP2:%.*]] = fcmp une <2 x double> [[TMP1]], zeroinitializer
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; CHECK-NEXT: [[TMP3:%.*]] = insertelement <2 x double> poison, double [[G:%.*]], i32 0
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; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <2 x double> [[TMP3]], <2 x double> poison, <2 x i32> zeroinitializer
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; CHECK-NEXT: [[TMP4:%.*]] = select <2 x i1> [[TMP2]], <2 x double> [[SHUFFLE]], <2 x double> <double 1.000000e+00, double 1.000000e+00>
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; CHECK-NEXT: [[TMP5:%.*]] = bitcast double* [[A:%.*]] to <2 x double>*
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; CHECK-NEXT: store <2 x double> [[TMP4]], <2 x double>* [[TMP5]], align 8
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; CHECK-NEXT: ret i32 undef
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;
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entry:
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%arrayidx = getelementptr inbounds double, double* %B, i64 10
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%0 = load double, double* %arrayidx, align 8
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%tobool = fcmp une double %0, 0.000000e+00
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%cond = select i1 %tobool, double %G, double 1.000000e+00
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store double %cond, double* %A, align 8
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%arrayidx2 = getelementptr inbounds double, double* %B, i64 11
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%1 = load double, double* %arrayidx2, align 8
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%tobool3 = fcmp une double %1, 0.000000e+00
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%cond7 = select i1 %tobool3, double %G, double 1.000000e+00
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%arrayidx8 = getelementptr inbounds double, double* %A, i64 1
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store double %cond7, double* %arrayidx8, align 8
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ret i32 undef
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}
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