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
83 lines
3.6 KiB
LLVM
83 lines
3.6 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 -mcpu=corei7-avx | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.8.0"
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define i32 @foo(i32* nocapture %A, i32 %n) {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP62:%.*]] = icmp sgt i32 [[N:%.*]], 0
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; CHECK-NEXT: br i1 [[CMP62]], label [[FOR_BODY:%.*]], label [[FOR_END:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ], [ 0, [[ENTRY:%.*]] ]
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; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 [[INDVARS_IV]]
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; CHECK-NEXT: [[TMP0:%.*]] = bitcast i32* [[ARRAYIDX]] to <8 x i32>*
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; CHECK-NEXT: [[TMP1:%.*]] = load <8 x i32>, <8 x i32>* [[TMP0]], align 4
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; CHECK-NEXT: [[TMP2:%.*]] = insertelement <8 x i32> poison, i32 [[N]], i32 0
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; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <8 x i32> [[TMP2]], <8 x i32> poison, <8 x i32> zeroinitializer
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; CHECK-NEXT: [[TMP3:%.*]] = add nsw <8 x i32> [[TMP1]], [[SHUFFLE]]
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; CHECK-NEXT: [[TMP4:%.*]] = bitcast i32* [[ARRAYIDX]] to <8 x i32>*
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; CHECK-NEXT: store <8 x i32> [[TMP3]], <8 x i32>* [[TMP4]], align 4
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; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add i64 [[INDVARS_IV]], 8
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; CHECK-NEXT: [[TMP5:%.*]] = trunc i64 [[INDVARS_IV_NEXT]] to i32
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[TMP5]], [[N]]
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; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END]]
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; CHECK: for.end:
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; CHECK-NEXT: ret i32 undef
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;
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entry:
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%cmp62 = icmp sgt i32 %n, 0
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br i1 %cmp62, label %for.body, label %for.end
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for.body:
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%0 = load i32, i32* %arrayidx, align 4
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%add1 = add nsw i32 %0, %n
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store i32 %add1, i32* %arrayidx, align 4
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%1 = or i64 %indvars.iv, 1
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%arrayidx4 = getelementptr inbounds i32, i32* %A, i64 %1
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%2 = load i32, i32* %arrayidx4, align 4
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%add5 = add nsw i32 %2, %n
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store i32 %add5, i32* %arrayidx4, align 4
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%3 = or i64 %indvars.iv, 2
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%arrayidx8 = getelementptr inbounds i32, i32* %A, i64 %3
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%4 = load i32, i32* %arrayidx8, align 4
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%add9 = add nsw i32 %4, %n
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store i32 %add9, i32* %arrayidx8, align 4
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%5 = or i64 %indvars.iv, 3
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%arrayidx12 = getelementptr inbounds i32, i32* %A, i64 %5
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%6 = load i32, i32* %arrayidx12, align 4
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%add13 = add nsw i32 %6, %n
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store i32 %add13, i32* %arrayidx12, align 4
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%7 = or i64 %indvars.iv, 4
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%arrayidx16 = getelementptr inbounds i32, i32* %A, i64 %7
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%8 = load i32, i32* %arrayidx16, align 4
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%add17 = add nsw i32 %8, %n
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store i32 %add17, i32* %arrayidx16, align 4
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%9 = or i64 %indvars.iv, 5
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%arrayidx20 = getelementptr inbounds i32, i32* %A, i64 %9
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%10 = load i32, i32* %arrayidx20, align 4
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%add21 = add nsw i32 %10, %n
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store i32 %add21, i32* %arrayidx20, align 4
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%11 = or i64 %indvars.iv, 6
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%arrayidx24 = getelementptr inbounds i32, i32* %A, i64 %11
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%12 = load i32, i32* %arrayidx24, align 4
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%add25 = add nsw i32 %12, %n
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store i32 %add25, i32* %arrayidx24, align 4
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%13 = or i64 %indvars.iv, 7
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%arrayidx28 = getelementptr inbounds i32, i32* %A, i64 %13
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%14 = load i32, i32* %arrayidx28, align 4
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%add29 = add nsw i32 %14, %n
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store i32 %add29, i32* %arrayidx28, align 4
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%indvars.iv.next = add i64 %indvars.iv, 8
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%15 = trunc i64 %indvars.iv.next to i32
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%cmp = icmp slt i32 %15, %n
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br i1 %cmp, label %for.body, label %for.end
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for.end:
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ret i32 undef
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}
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