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Always remove an alias when we rename the target.

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Should fix the dragonegg build bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183845 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2013-06-12 16:45:47 +00:00
parent d3f7766f23
commit 100fbdd06b
2 changed files with 13 additions and 4 deletions
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4
lib/Transforms/IPO/GlobalOpt.cpp
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@ -3238,9 +3238,7 @@ bool GlobalOpt::OptimizeGlobalAliases(Module &M) {
if (Used.compilerUsedErase(J)) if (Used.compilerUsedErase(J))
Used.compilerUsedInsert(Target); Used.compilerUsedInsert(Target);
} } else if (mayHaveOtherReferences(*J, Used))
if (mayHaveOtherReferences(*J, Used))
continue; continue;
// Delete the alias. // Delete the alias.

13
test/Transforms/GlobalOpt/alias-resolve.ll
View File

@ -1,4 +1,7 @@
; RUN: opt < %s -globalopt -S | FileCheck %s ; We use a temporary file so that the test fails when opt crashes.
; RUN: opt < %s -globalopt -S > %t
; RUN: FileCheck %s < %t
@foo1 = alias void ()* @foo2 @foo1 = alias void ()* @foo2
; CHECK: @foo1 = alias void ()* @foo2 ; CHECK: @foo1 = alias void ()* @foo2
@ -25,3 +28,11 @@ entry:
ret void ret void
} }
@foo3 = alias void ()* @bar3
; CHECK-NOT: bar3
define internal void @bar3() {
ret void
}
;CHECK: define void @foo3