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; Test to make sure loop vectorizer metadata is automatically upgraded.
;
; Run using opt as well to ensure that the metadata is upgraded when parsing
; assembly.
;
; RUN: llvm-as < %s | llvm-dis | FileCheck %s
; RUN: opt -S < %s | FileCheck %s
define void @_Z28loop_with_vectorize_metadatav() {
entry:
%i = alloca i32, align 4
store i32 0, i32* %i, align 4
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%0 = load i32* %i, align 4
%cmp = icmp slt i32 %0, 16
br i1 %cmp, label %for.body, label %for.end, !llvm.loop !1
for.body: ; preds = %for.cond
br label %for.inc
for.inc: ; preds = %for.body
%1 = load i32* %i, align 4
%inc = add nsw i32 %1, 1
store i32 %inc, i32* %i, align 4
br label %for.cond
for.end: ; preds = %for.cond
ret void
}
; CHECK: !{metadata !"llvm.loop.vectorize.unroll", i32 4}
; CHECK: !{metadata !"llvm.loop.vectorize.width", i32 8}
; CHECK: !{metadata !"llvm.loop.vectorize.enable", i1 true}
!0 = metadata !{metadata !"clang version 3.5.0 (trunk 211528)"}
!1 = metadata !{metadata !1, metadata !2, metadata !3, metadata !4, metadata !4}
!2 = metadata !{metadata !"llvm.vectorizer.unroll", i32 4}
!3 = metadata !{metadata !"llvm.vectorizer.width", i32 8}
!4 = metadata !{metadata !"llvm.vectorizer.enable", i1 true}
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