7d6e8f2a96
If we vectorize a e.g. store, we leave around a bunch of getelementptrs for the individual scalar stores which we removed. We can go ahead and delete them as well. This is purely for test output quality and readability. It should have no effect in any sane pipeline. Differential Revision: https://reviews.llvm.org/D122493
91 lines
4.8 KiB
LLVM
91 lines
4.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -mattr=sse2 -slp-vectorizer -S | FileCheck %s --check-prefix=SSE
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; RUN: opt < %s -mattr=avx2 -slp-vectorizer -S | FileCheck %s --check-prefix=AVX
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; TODO:
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; With AVX, we are able to vectorize the 1st 4 elements as 256-bit vector ops,
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; but the final 2 elements remain scalar. They should get vectorized using
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; 128-bit ops identically to what happens with SSE.
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define void @PR28457(double* noalias nocapture align 32 %q, double* noalias nocapture readonly align 32 %p) {
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; SSE-LABEL: @PR28457(
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; SSE-NEXT: [[P0:%.*]] = getelementptr inbounds double, double* [[P:%.*]], i64 0
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; SSE-NEXT: [[P2:%.*]] = getelementptr inbounds double, double* [[P]], i64 2
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; SSE-NEXT: [[P4:%.*]] = getelementptr inbounds double, double* [[P]], i64 4
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; SSE-NEXT: [[Q0:%.*]] = getelementptr inbounds double, double* [[Q:%.*]], i64 0
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; SSE-NEXT: [[Q2:%.*]] = getelementptr inbounds double, double* [[Q]], i64 2
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; SSE-NEXT: [[Q4:%.*]] = getelementptr inbounds double, double* [[Q]], i64 4
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; SSE-NEXT: [[TMP1:%.*]] = bitcast double* [[P0]] to <2 x double>*
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; SSE-NEXT: [[TMP2:%.*]] = load <2 x double>, <2 x double>* [[TMP1]], align 8
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; SSE-NEXT: [[TMP3:%.*]] = fadd <2 x double> [[TMP2]], <double 1.000000e+00, double 1.000000e+00>
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; SSE-NEXT: [[TMP4:%.*]] = bitcast double* [[Q0]] to <2 x double>*
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; SSE-NEXT: store <2 x double> [[TMP3]], <2 x double>* [[TMP4]], align 8
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; SSE-NEXT: [[TMP5:%.*]] = bitcast double* [[P2]] to <2 x double>*
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; SSE-NEXT: [[TMP6:%.*]] = load <2 x double>, <2 x double>* [[TMP5]], align 8
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; SSE-NEXT: [[TMP7:%.*]] = fadd <2 x double> [[TMP6]], <double 1.000000e+00, double 1.000000e+00>
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; SSE-NEXT: [[TMP8:%.*]] = bitcast double* [[Q2]] to <2 x double>*
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; SSE-NEXT: store <2 x double> [[TMP7]], <2 x double>* [[TMP8]], align 8
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; SSE-NEXT: [[TMP9:%.*]] = bitcast double* [[P4]] to <2 x double>*
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; SSE-NEXT: [[TMP10:%.*]] = load <2 x double>, <2 x double>* [[TMP9]], align 8
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; SSE-NEXT: [[TMP11:%.*]] = fadd <2 x double> [[TMP10]], <double 1.000000e+00, double 1.000000e+00>
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; SSE-NEXT: [[TMP12:%.*]] = bitcast double* [[Q4]] to <2 x double>*
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; SSE-NEXT: store <2 x double> [[TMP11]], <2 x double>* [[TMP12]], align 8
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; SSE-NEXT: ret void
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;
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; AVX-LABEL: @PR28457(
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; AVX-NEXT: [[P0:%.*]] = getelementptr inbounds double, double* [[P:%.*]], i64 0
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; AVX-NEXT: [[P4:%.*]] = getelementptr inbounds double, double* [[P]], i64 4
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; AVX-NEXT: [[Q0:%.*]] = getelementptr inbounds double, double* [[Q:%.*]], i64 0
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; AVX-NEXT: [[Q4:%.*]] = getelementptr inbounds double, double* [[Q]], i64 4
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; AVX-NEXT: [[TMP1:%.*]] = bitcast double* [[P0]] to <4 x double>*
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; AVX-NEXT: [[TMP2:%.*]] = load <4 x double>, <4 x double>* [[TMP1]], align 8
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; AVX-NEXT: [[TMP3:%.*]] = fadd <4 x double> [[TMP2]], <double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00>
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; AVX-NEXT: [[TMP4:%.*]] = bitcast double* [[Q0]] to <4 x double>*
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; AVX-NEXT: store <4 x double> [[TMP3]], <4 x double>* [[TMP4]], align 8
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; AVX-NEXT: [[TMP5:%.*]] = bitcast double* [[P4]] to <2 x double>*
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; AVX-NEXT: [[TMP6:%.*]] = load <2 x double>, <2 x double>* [[TMP5]], align 8
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; AVX-NEXT: [[TMP7:%.*]] = fadd <2 x double> [[TMP6]], <double 1.000000e+00, double 1.000000e+00>
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; AVX-NEXT: [[TMP8:%.*]] = bitcast double* [[Q4]] to <2 x double>*
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; AVX-NEXT: store <2 x double> [[TMP7]], <2 x double>* [[TMP8]], align 8
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; AVX-NEXT: ret void
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;
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%p0 = getelementptr inbounds double, double* %p, i64 0
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%p1 = getelementptr inbounds double, double* %p, i64 1
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%p2 = getelementptr inbounds double, double* %p, i64 2
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%p3 = getelementptr inbounds double, double* %p, i64 3
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%p4 = getelementptr inbounds double, double* %p, i64 4
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%p5 = getelementptr inbounds double, double* %p, i64 5
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%q0 = getelementptr inbounds double, double* %q, i64 0
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%q1 = getelementptr inbounds double, double* %q, i64 1
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%q2 = getelementptr inbounds double, double* %q, i64 2
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%q3 = getelementptr inbounds double, double* %q, i64 3
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%q4 = getelementptr inbounds double, double* %q, i64 4
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%q5 = getelementptr inbounds double, double* %q, i64 5
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%d0 = load double, double* %p0
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%d1 = load double, double* %p1
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%d2 = load double, double* %p2
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%d3 = load double, double* %p3
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%d4 = load double, double* %p4
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%d5 = load double, double* %p5
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%a0 = fadd double %d0, 1.0
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%a1 = fadd double %d1, 1.0
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%a2 = fadd double %d2, 1.0
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%a3 = fadd double %d3, 1.0
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%a4 = fadd double %d4, 1.0
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%a5 = fadd double %d5, 1.0
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store double %a0, double* %q0
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store double %a1, double* %q1
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store double %a2, double* %q2
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store double %a3, double* %q3
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store double %a4, double* %q4
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store double %a5, double* %q5
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ret void
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}
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