24 lines
687 B
LLVM
24 lines
687 B
LLVM
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; RUN: opt -mtriple=x86_64-apple-darwin -mattr=+sse2 -loop-vectorize -debug-only=loop-vectorize -S < %s 2>&1 | FileCheck %s
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; REQUIRES: asserts
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; CHECK: "foo"
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; CHECK: LV: Found an estimated cost of 1 for VF 4 For instruction: %shift = ashr i32 %val, %k
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define void @foo(i32* nocapture %p, i32 %k) local_unnamed_addr #0 {
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entry:
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br label %body
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body:
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%i = phi i64 [ 0, %entry ], [ %next, %body ]
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%ptr = getelementptr inbounds i32, i32* %p, i64 %i
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%val = load i32, i32* %ptr, align 4
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%shift = ashr i32 %val, %k
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store i32 %shift, i32* %ptr, align 4
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%next = add nuw nsw i64 %i, 1
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%cmp = icmp eq i64 %next, 16
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br i1 %cmp, label %exit, label %body
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exit:
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ret void
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}
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