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Imported Upstream version 5.18.0.179

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Former-commit-id: 67aa10e65b237e1c4537630979ee99ebe1374215
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Xamarin Public Jenkins (auto-signing)
2018-10-25 08:34:57 +00:00
parent d6bde52373
commit 8625704ad8
28485 changed files with 3866843 additions and 50 deletions
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33
external/llvm/test/Transforms/InstCombine/deadcode.ll vendored Normal file
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; RUN: opt < %s -instcombine -S | grep "ret i32 %A"
; RUN: opt < %s -die -S | not grep call.*llvm
define i32 @test(i32 %A) {
%X = or i1 false, false
br i1 %X, label %T, label %C
T: ; preds = %0
%B = add i32 %A, 1
br label %C
C: ; preds = %T, %0
%C.upgrd.1 = phi i32 [ %B, %T ], [ %A, %0 ]
ret i32 %C.upgrd.1
}
define i32* @test2(i32 %width) {
%tmp = call i8* @llvm.stacksave( )
%tmp14 = alloca i32, i32 %width
ret i32* %tmp14
}
declare i8* @llvm.stacksave()
declare void @llvm.lifetime.start.p0i8(i64, i8*)
declare void @llvm.lifetime.end.p0i8(i64, i8*)
define void @test3() {
call void @llvm.lifetime.start.p0i8(i64 -1, i8* undef)
call void @llvm.lifetime.end.p0i8(i64 -1, i8* undef)
ret void
}