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Imported Upstream version 5.18.0.167

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Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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Xamarin Public Jenkins (auto-signing)
2018-10-20 08:25:10 +00:00
parent e19d552987
commit b084638f15
28489 changed files with 184 additions and 3866856 deletions
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38
external/llvm/test/Analysis/MemorySSA/load-invariant.ll vendored
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@ -1,38 +0,0 @@
; RUN: opt -basicaa -print-memoryssa -verify-memoryssa -analyze < %s 2>&1 | FileCheck %s
; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>' -verify-memoryssa -disable-output < %s 2>&1 | FileCheck %s
;
; Invariant loads should be considered live on entry, because, once the
; location is known to be dereferenceable, the value can never change.
@g = external global i32
declare void @clobberAllTheThings()
; CHECK-LABEL: define i32 @foo
define i32 @foo() {
; CHECK: 1 = MemoryDef(liveOnEntry)
; CHECK-NEXT: call void @clobberAllTheThings()
call void @clobberAllTheThings()
; CHECK: MemoryUse(liveOnEntry)
; CHECK-NEXT: %1 = load i32
%1 = load i32, i32* @g, align 4, !invariant.load !0
ret i32 %1
}
; CHECK-LABEL: define i32 @bar
define i32 @bar(i32* %a) {
; CHECK: 1 = MemoryDef(liveOnEntry)
; CHECK-NEXT: call void @clobberAllTheThings()
call void @clobberAllTheThings()
; CHECK: 2 = MemoryDef(1)
; CHECK-NEXT: %1 = load atomic i32
%1 = load atomic i32, i32* %a acquire, align 4, !invariant.load !0
; CHECK: MemoryUse(2)
; CHECK-NEXT: %2 = load i32
%2 = load i32, i32* %a, align 4
ret i32 %2
}
!0 = !{}