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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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43
external/llvm/test/Transforms/NewGVN/noalias.ll vendored
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@ -1,43 +0,0 @@
; RUN: opt -scoped-noalias -basicaa -newgvn -S < %s | FileCheck %s
define i32 @test1(i32* %p, i32* %q) {
; CHECK-LABEL: @test1(i32* %p, i32* %q)
; CHECK: load i32, i32* %p
; CHECK-NOT: noalias
; CHECK: %c = add i32 %a, %a
%a = load i32, i32* %p, !noalias !0
%b = load i32, i32* %p
%c = add i32 %a, %b
ret i32 %c
}
define i32 @test2(i32* %p, i32* %q) {
; CHECK-LABEL: @test2(i32* %p, i32* %q)
; CHECK: load i32, i32* %p, !alias.scope !0
; CHECK: %c = add i32 %a, %a
%a = load i32, i32* %p, !alias.scope !0
%b = load i32, i32* %p, !alias.scope !0
%c = add i32 %a, %b
ret i32 %c
}
; FIXME: In this case we can do better than intersecting the scopes, and can
; concatenate them instead. Both loads are in the same basic block, the first
; makes the second safe to speculatively execute, and there are no calls that may
; throw in between.
define i32 @test3(i32* %p, i32* %q) {
; CHECK-LABEL: @test3(i32* %p, i32* %q)
; CHECK: load i32, i32* %p, !alias.scope !1
; CHECK: %c = add i32 %a, %a
%a = load i32, i32* %p, !alias.scope !1
%b = load i32, i32* %p, !alias.scope !2
%c = add i32 %a, %b
ret i32 %c
}
declare i32 @foo(i32*) readonly
!0 = !{!0}
!1 = !{!1}
!2 = !{!0, !1}