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Imported Upstream version 5.18.0.234

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Former-commit-id: 8071ec1a8c5eaa9be24b41745add19297608001f
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Xamarin Public Jenkins (auto-signing)
2019-01-08 08:22:36 +00:00
parent f32dbaf0b2
commit 212f6bafcb
28494 changed files with 359 additions and 3867025 deletions
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28
external/llvm/test/Transforms/InstCombine/invariant.ll vendored
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@ -1,28 +0,0 @@
; Test to make sure unused llvm.invariant.start calls are not trivially eliminated
; RUN: opt < %s -instcombine -S | FileCheck %s
declare void @g(i8*)
declare void @g_addr1(i8 addrspace(1)*)
declare {}* @llvm.invariant.start.p0i8(i64, i8* nocapture) nounwind readonly
declare {}* @llvm.invariant.start.p1i8(i64, i8 addrspace(1)* nocapture) nounwind readonly
define i8 @f() {
%a = alloca i8 ; <i8*> [#uses=4]
store i8 0, i8* %a
%i = call {}* @llvm.invariant.start.p0i8(i64 1, i8* %a) ; <{}*> [#uses=0]
; CHECK: call {}* @llvm.invariant.start.p0i8
call void @g(i8* %a)
%r = load i8, i8* %a ; <i8> [#uses=1]
ret i8 %r
}
; make sure llvm.invariant.call in non-default addrspace are also not eliminated.
define i8 @f_addrspace1(i8 addrspace(1)* %a) {
store i8 0, i8 addrspace(1)* %a
%i = call {}* @llvm.invariant.start.p1i8(i64 1, i8 addrspace(1)* %a) ; <{}*> [#uses=0]
; CHECK: call {}* @llvm.invariant.start.p1i8
call void @g_addr1(i8 addrspace(1)* %a)
%r = load i8, i8 addrspace(1)* %a ; <i8> [#uses=1]
ret i8 %r
}