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| author | Anton Korobeynikov <asl@math.spbu.ru> | 2013-04-19 21:20:56 +0000 |
|---|---|---|
| committer | Anton Korobeynikov <asl@math.spbu.ru> | 2013-04-19 21:20:56 +0000 |
| commit | 8caffc1e75b34d97bbb225322243e5bad0f379bf (patch) | |
| tree | 3726c69aeee821c34951e75460fbc03efcc836d1 | |
| parent | a317eb822905397b0e1c9ba0c343306ff96c3d4d (diff) | |
| download | external_llvm-8caffc1e75b34d97bbb225322243e5bad0f379bf.zip external_llvm-8caffc1e75b34d97bbb225322243e5bad0f379bf.tar.gz external_llvm-8caffc1e75b34d97bbb225322243e5bad0f379bf.tar.bz2 | |
Do not mangle in MS-way the globals with magic \001 in the name.
Based on the patch by David Nadlinger!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179889 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/Mangler.cpp | 7 | ||||
| -rw-r--r-- | test/CodeGen/X86/fastcall-correct-mangling.ll | 5 | ||||
| -rw-r--r-- | test/CodeGen/X86/stdcall.ll | 24 |
3 files changed, 27 insertions, 9 deletions
diff --git a/lib/Target/Mangler.cpp b/lib/Target/Mangler.cpp index edfd421..d31efa8 100644 --- a/lib/Target/Mangler.cpp +++ b/lib/Target/Mangler.cpp @@ -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. diff --git a/test/CodeGen/X86/fastcall-correct-mangling.ll b/test/CodeGen/X86/fastcall-correct-mangling.ll index 33b18bb..3569d36 100644 --- a/test/CodeGen/X86/fastcall-correct-mangling.ll +++ b/test/CodeGen/X86/fastcall-correct-mangling.ll @@ -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 +} diff --git a/test/CodeGen/X86/stdcall.ll b/test/CodeGen/X86/stdcall.ll index a7c2517..73826ed 100644 --- a/test/CodeGen/X86/stdcall.ll +++ b/test/CodeGen/X86/stdcall.ll @@ -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 (...)* } -@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: +; 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 + |