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Do not mangle in MS-way the globals with magic \001 in the name.

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Based on the patch by David Nadlinger!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179889 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2013-04-19 21:20:56 +00:00
parent a317eb8229
commit 8caffc1e75
3 changed files with 27 additions and 9 deletions
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7
lib/Target/Mangler.cpp
View File

@ -188,7 +188,12 @@ void Mangler::getNameWithPrefix(SmallVectorImpl<char> &OutName,
// If this global has a name, handle it simply.
if (GV->hasName()) {
getNameWithPrefix(OutName, GV->getName(), PrefixTy);
StringRef Name = GV->getName();
getNameWithPrefix(OutName, Name, PrefixTy);
// No need to do anything else if the global has the special "do not mangle"
// flag in the name.
if (Name[0] == 1)
return;
} else {
// Get the ID for the global, assigning a new one if we haven't got one
// already.

5
test/CodeGen/X86/fastcall-correct-mangling.ll
View File

@ -7,3 +7,8 @@ define x86_fastcallcc void @func(i64 %X, i8 %Y, i8 %G, i16 %Z) {
ret void
}
define x86_fastcallcc i32 @"\01DoNotMangle"(i32 %a) {
; CHECK: DoNotMangle:
entry:
ret i32 %a
}

24
test/CodeGen/X86/stdcall.ll
View File

@ -1,16 +1,24 @@
; RUN: llc < %s | FileCheck %s
; RUN: llc -mtriple="i386-pc-mingw32" < %s | FileCheck %s
; PR5851
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f80:128:128-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32"
target triple = "i386-pc-mingw32"
%0 = type { void (...)* }
define internal x86_stdcallcc void @MyFunc() nounwind {
entry:
; CHECK: MyFunc@0:
; CHECK: ret
ret void
}
; PR14410
define x86_stdcallcc i32 @"\01DoNotMangle"(i32 %a) {
; CHECK: DoNotMangle:
; CHECK: ret $4
entry:
ret i32 %a
}
@B = global %0 { void (...)* bitcast (void ()* @MyFunc to void (...)*) }, align 4
; CHECK: _B:
; CHECK: .long _MyFunc@0
define internal x86_stdcallcc void @MyFunc() nounwind {
entry:
ret void
}