41 lines
1.4 KiB
LLVM
41 lines
1.4 KiB
LLVM
; RUN: opt -loop-vectorize -force-vector-width=4 -S -o - < %s | FileCheck %s
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%arrayt = type [64 x i32]
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@v_146 = external global %arrayt, align 1
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; Since the program has well defined behavior, it should not introduce store poison
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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: store <4 x i32> zeroinitializer,
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; CHECK: br i1 %{{.*}}, label %middle.block, label %vector.body
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define void @foo() {
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entry:
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br label %for.cond
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for.cond: ; preds = %cond.end, %entry
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%storemerge = phi i16 [ 0, %entry ], [ %inc, %cond.end ]
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%cmp = icmp slt i16 %storemerge, 15
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br i1 %cmp, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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br i1 true, label %cond.false, label %land.rhs
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land.rhs: ; preds = %for.body
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br i1 poison, label %cond.end, label %cond.false
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cond.false: ; preds = %for.body, %land.rhs
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br label %cond.end
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cond.end: ; preds = %land.rhs, %cond.false
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%cond = phi i32 [ 0, %cond.false ], [ 1, %land.rhs ]
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%arrayidx = getelementptr inbounds %arrayt, %arrayt* @v_146, i16 0, i16 %storemerge
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store i32 %cond, i32* %arrayidx, align 1
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%inc = add nsw i16 %storemerge, 1
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br label %for.cond
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for.end: ; preds = %for.cond
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ret void
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}
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