108 lines
4.7 KiB
LLVM
108 lines
4.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -mtriple=s390x-unknown-linux -mcpu=z13 -loop-vectorize -dce \
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; RUN: -instcombine -force-vector-width=2 < %s | FileCheck %s
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;
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; Test that loop vectorizer does not generate vector addresses that must then
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; always be extracted.
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; Check that the addresses for a scalarized memory access is not extracted
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; from a vector register.
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define i32 @foo(i32* nocapture %A) {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
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; CHECK: vector.ph:
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; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
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; CHECK: vector.body:
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; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[TMP0:%.*]] = shl nsw i64 [[INDEX]], 2
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; CHECK-NEXT: [[TMP1:%.*]] = shl i64 [[INDEX]], 2
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; CHECK-NEXT: [[TMP2:%.*]] = or i64 [[TMP1]], 4
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; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 [[TMP0]]
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; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP2]]
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; CHECK-NEXT: store i32 4, i32* [[TMP3]], align 4
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; CHECK-NEXT: store i32 4, i32* [[TMP4]], align 4
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; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
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; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], 10000
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; CHECK-NEXT: br i1 [[TMP5]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; CHECK: middle.block:
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; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]]
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; CHECK: scalar.ph:
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: br i1 poison, label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]]
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; CHECK: for.end:
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; CHECK-NEXT: ret i32 poison
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;
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entry:
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br label %for.body
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for.body:
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%0 = shl nsw i64 %indvars.iv, 2
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %0
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store i32 4, i32* %arrayidx, align 4
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%indvars.iv.next = add i64 %indvars.iv, 1
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32
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%exitcond = icmp eq i32 %lftr.wideiv, 10000
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br i1 %exitcond, label %for.end, label %for.body
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for.end:
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ret i32 poison
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}
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; Check that a load of address is scalarized.
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define i32 @foo1(i32* nocapture noalias %A, i32** nocapture %PtrPtr) {
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; CHECK-LABEL: @foo1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
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; CHECK: vector.ph:
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; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
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; CHECK: vector.body:
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; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[TMP0:%.*]] = or i64 [[INDEX]], 1
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; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32*, i32** [[PTRPTR:%.*]], i64 [[INDEX]]
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; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32*, i32** [[PTRPTR]], i64 [[TMP0]]
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; CHECK-NEXT: [[TMP3:%.*]] = load i32*, i32** [[TMP1]], align 8
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; CHECK-NEXT: [[TMP4:%.*]] = load i32*, i32** [[TMP2]], align 8
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; CHECK-NEXT: [[TMP5:%.*]] = load i32, i32* [[TMP3]], align 4
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; CHECK-NEXT: [[TMP6:%.*]] = load i32, i32* [[TMP4]], align 4
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; CHECK-NEXT: [[TMP7:%.*]] = insertelement <2 x i32> poison, i32 [[TMP5]], i64 0
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; CHECK-NEXT: [[TMP8:%.*]] = insertelement <2 x i32> [[TMP7]], i32 [[TMP6]], i64 1
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; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 [[INDEX]]
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; CHECK-NEXT: [[TMP10:%.*]] = bitcast i32* [[TMP9]] to <2 x i32>*
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; CHECK-NEXT: store <2 x i32> [[TMP8]], <2 x i32>* [[TMP10]], align 4
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; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
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; CHECK-NEXT: [[TMP11:%.*]] = icmp eq i64 [[INDEX_NEXT]], 10000
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; CHECK-NEXT: br i1 [[TMP11]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
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; CHECK: middle.block:
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; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]]
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; CHECK: scalar.ph:
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: br i1 poison, label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
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; CHECK: for.end:
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; CHECK-NEXT: ret i32 poison
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;
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entry:
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br label %for.body
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for.body:
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%ptr = getelementptr inbounds i32*, i32** %PtrPtr, i64 %indvars.iv
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%el = load i32*, i32** %ptr
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%v = load i32, i32* %el
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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store i32 %v, i32* %arrayidx, align 4
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%indvars.iv.next = add i64 %indvars.iv, 1
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32
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%exitcond = icmp eq i32 %lftr.wideiv, 10000
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br i1 %exitcond, label %for.end, label %for.body
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for.end:
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ret i32 poison
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}
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