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llvm-mirror/test/Transforms/GlobalOpt/alias-resolve.ll
Arthur Eubanks 21048e7590 [GlobalOpt] Don't replace alias with aliasee if aliasee is interposable
Both the alias and aliasee linkage are important.

PR27866 provides some background.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D99629
2021-04-22 13:12:34 -07:00

59 lines
1.4 KiB
LLVM

; RUN: opt < %s -globalopt -S | FileCheck %s
@foo1 = alias void (), void ()* @foo2
; CHECK: @foo1 = alias void (), void ()* @bar2
@foo2 = alias void(), void()* @bar1
; CHECK: @foo2 = alias void (), void ()* @bar2
@bar1 = alias void (), void ()* @bar2
; CHECK: @bar1 = alias void (), void ()* @bar2
@weak1 = weak alias void (), void ()* @bar2
; CHECK: @weak1 = weak alias void (), void ()* @bar2
@bar4 = private unnamed_addr constant [2 x i8*] zeroinitializer
@foo4 = weak_odr unnamed_addr alias i8*, getelementptr inbounds ([2 x i8*], [2 x i8*]* @bar4, i32 0, i32 1)
; CHECK: @foo4 = weak_odr unnamed_addr alias i8*, getelementptr inbounds ([2 x i8*], [2 x i8*]* @bar4, i32 0, i32 1)
@priva = private alias void (), void ()* @bar5
; CHECK: @priva = private alias void (), void ()* @bar5
define void @bar2() {
ret void
}
; CHECK: define void @bar2()
define weak void @bar5() {
ret void
}
; CHECK: define weak void @bar5()
define void @baz() {
entry:
call void @foo1()
; CHECK: call void @bar2()
call void @foo2()
; CHECK: call void @bar2()
call void @bar1()
; CHECK: call void @bar2()
call void @weak1()
; CHECK: call void @weak1()
call void @priva()
; CHECK: call void @priva()
ret void
}
@foo3 = alias void (), void ()* @bar3
; CHECK-NOT: bar3
define internal void @bar3() {
ret void
}
;CHECK: define void @foo3