Bill Wendling 5b85a9b5ad Merging r181524:
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r181524 | rafael | 2013-05-09 10:22:59 -0700 (Thu, 09 May 2013) | 4 lines

Don't replace an alias in llvm.used with its target.

When we replace an internal alias with its target, be careful not to
replace the entry in llvm.used (and llvm.compiler_used).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_33@181909 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-15 18:16:42 +00:00

43 lines
1.3 KiB
LLVM

; RUN: opt < %s -globalopt -S | FileCheck %s
@c = global i8 42
@llvm.used = appending global [3 x i8*] [i8* bitcast (void ()* @fa to i8*), i8* bitcast (void ()* @f to i8*), i8* @ca], section "llvm.metadata"
; CHECK: @llvm.used = appending global [3 x i8*] [i8* bitcast (void ()* @fa to i8*), i8* bitcast (void ()* @f to i8*), i8* @ca], section "llvm.metadata"
@llvm.compiler_used = appending global [2 x i8*] [i8* bitcast (void ()* @fa to i8*), i8* bitcast (void ()* @fa3 to i8*)], section "llvm.metadata"
@sameAsUsed = global [3 x i8*] [i8* bitcast (void ()* @fa to i8*), i8* bitcast (void ()* @f to i8*), i8* @ca]
; CHECK: @sameAsUsed = global [3 x i8*] [i8* bitcast (void ()* @f to i8*), i8* bitcast (void ()* @f to i8*), i8* @c]
@other = global i32* bitcast (void ()* @fa to i32*)
; CHECK: @other = global i32* bitcast (void ()* @f to i32*)
@fa = alias internal void ()* @f
; CHECK: @fa = alias internal void ()* @f
@fa2 = alias internal void ()* @f
; CHECK-NOT: @fa2
@fa3 = alias internal void ()* @f
; CHECK: @fa3
@ca = alias internal i8* @c
; CHECK: @ca = alias internal i8* @c
define void @f() {
ret void
}
define i8* @g() {
ret i8* bitcast (void ()* @fa to i8*);
}
define i8* @g2() {
ret i8* bitcast (void ()* @fa2 to i8*);
}
define i8* @h() {
ret i8* @ca
}