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
64 lines
3.4 KiB
LLVM
64 lines
3.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -basic-aa -slp-vectorizer -S |FileCheck %s
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; RUN: opt < %s -aa-pipeline=basic-aa -passes=slp-vectorizer -S |FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-unknown"
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; Test if SLP can handle GEP expressions.
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; The test perform the following action:
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; x->first = y->first + 16
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; x->second = y->second + 16
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define void @foo1 ({ i32*, i32* }* noalias %x, { i32*, i32* }* noalias %y) {
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; CHECK-LABEL: @foo1(
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; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* [[Y:%.*]], i64 0, i32 0
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; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* [[X:%.*]], i64 0, i32 0
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; CHECK-NEXT: [[TMP3:%.*]] = bitcast i32** [[TMP1]] to <2 x i32*>*
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; CHECK-NEXT: [[TMP4:%.*]] = load <2 x i32*>, <2 x i32*>* [[TMP3]], align 8
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; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i32, <2 x i32*> [[TMP4]], <2 x i64> <i64 16, i64 16>
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; CHECK-NEXT: [[TMP6:%.*]] = bitcast i32** [[TMP2]] to <2 x i32*>*
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; CHECK-NEXT: store <2 x i32*> [[TMP5]], <2 x i32*>* [[TMP6]], align 8
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; CHECK-NEXT: ret void
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;
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%1 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 0
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%2 = load i32*, i32** %1, align 8
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%3 = getelementptr inbounds i32, i32* %2, i64 16
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%4 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 0
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store i32* %3, i32** %4, align 8
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%5 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 1
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%6 = load i32*, i32** %5, align 8
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%7 = getelementptr inbounds i32, i32* %6, i64 16
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%8 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 1
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store i32* %7, i32** %8, align 8
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ret void
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}
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; Test that we don't vectorize GEP expressions if indexes are not constants.
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; We can't produce an efficient code in that case.
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define void @foo2 ({ i32*, i32* }* noalias %x, { i32*, i32* }* noalias %y, i32 %i) {
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; CHECK-LABEL: @foo2(
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; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* [[Y:%.*]], i64 0, i32 0
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; CHECK-NEXT: [[TMP2:%.*]] = load i32*, i32** [[TMP1]], align 8
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; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i32, i32* [[TMP2]], i32 [[I:%.*]]
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; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* [[X:%.*]], i64 0, i32 0
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; CHECK-NEXT: store i32* [[TMP3]], i32** [[TMP4]], align 8
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; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* [[Y]], i64 0, i32 1
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; CHECK-NEXT: [[TMP6:%.*]] = load i32*, i32** [[TMP5]], align 8
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; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32, i32* [[TMP6]], i32 [[I]]
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; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* [[X]], i64 0, i32 1
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; CHECK-NEXT: store i32* [[TMP7]], i32** [[TMP8]], align 8
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; CHECK-NEXT: ret void
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;
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%1 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 0
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%2 = load i32*, i32** %1, align 8
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%3 = getelementptr inbounds i32, i32* %2, i32 %i
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%4 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 0
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store i32* %3, i32** %4, align 8
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%5 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %y, i64 0, i32 1
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%6 = load i32*, i32** %5, align 8
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%7 = getelementptr inbounds i32, i32* %6, i32 %i
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%8 = getelementptr inbounds { i32*, i32* }, { i32*, i32* }* %x, i64 0, i32 1
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store i32* %7, i32** %8, align 8
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ret void
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}
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