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Imported Upstream version 5.18.0.161

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Former-commit-id: 4db48158d3a35497b8f118ab21b5f08ac3d86d98
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Xamarin Public Jenkins (auto-signing)
2018-10-19 08:34:24 +00:00
parent 37fbf886a3
commit e19d552987
28702 changed files with 3868076 additions and 803 deletions
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26
external/llvm/test/Analysis/BasicAA/invariant_load.ll vendored Normal file
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@@ -0,0 +1,26 @@
; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
; The input *.ll is obtained by manually annotating "invariant.load" to the
; two loads. With "invariant.load" metadata, the second load is redundant.
;
; int foo(int *p, char *q) {
; *q = (char)*p;
; return *p + 1;
; }
define i32 @foo(i32* nocapture %p, i8* nocapture %q) {
entry:
%0 = load i32, i32* %p, align 4, !invariant.load !3
%conv = trunc i32 %0 to i8
store i8 %conv, i8* %q, align 1
%1 = load i32, i32* %p, align 4, !invariant.load !3
%add = add nsw i32 %1, 1
ret i32 %add
; CHECK: foo
; CHECK: %0 = load i32, i32* %p
; CHECK: store i8 %conv, i8* %q,
; CHECK: %add = add nsw i32 %0, 1
}
!3 = !{}