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| author | Hans Wennborg <hans@hanshq.net> | 2013-10-18 20:46:28 +0000 |
|---|---|---|
| committer | Hans Wennborg <hans@hanshq.net> | 2013-10-18 20:46:28 +0000 |
| commit | 22f9dd4591e8af6d6feed10a4b6e11a784582edc (patch) | |
| tree | c95ba0547f40c0a5129e40d5e7716867351767f7 /test/MC/COFF/tricky-names.ll | |
| parent | 2d8a1d677c81c8e05d1dbc7832e1ced10cfc629a (diff) | |
| download | external_llvm-22f9dd4591e8af6d6feed10a4b6e11a784582edc.zip external_llvm-22f9dd4591e8af6d6feed10a4b6e11a784582edc.tar.gz external_llvm-22f9dd4591e8af6d6feed10a4b6e11a784582edc.tar.bz2 | |
MC asm parser: allow ?'s in symbol names, and handle @'s in names in MS asm
This is another (final?) stab at making us able to parse our own asm output
on Windows.
Symbols on Windows often contain @'s and ?'s in their names. Our asm parser
didn't like this. ?'s were not allowed, and @'s were intepreted as trying to
reference PLT/GOT/etc.
We can't just add quotes around the bad names, since e.g. for MinGW, we use gas
to assemble, and it doesn't like quotes in some places (notably in .def
directives).
This commit makes us allow ?'s in symbol names, and @'s in symbol names for MS
assembly.
Differential Revision: http://llvm-reviews.chandlerc.com/D1978
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193000 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/MC/COFF/tricky-names.ll')
| -rw-r--r-- | test/MC/COFF/tricky-names.ll | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/test/MC/COFF/tricky-names.ll b/test/MC/COFF/tricky-names.ll new file mode 100644 index 0000000..6e041d3 --- /dev/null +++ b/test/MC/COFF/tricky-names.ll @@ -0,0 +1,38 @@ +; Check how tricky symbols are printed in the asm output. +; RUN: llc -mtriple=i686-pc-win32 %s -o - | FileCheck %s --check-prefix=ASM + +; Check that we can roundtrip these names through our assembler. +; RUN: llc -mtriple=i686-pc-win32 %s -o - | llvm-mc -triple i686-pc-win32 -filetype=obj | llvm-readobj -t | FileCheck %s --check-prefix=READOBJ + + +@"\01??__E_Generic_object@?$_Error_objects@H@std@@YAXXZ" = global i32 0 +@"\01__ZL16ExceptionHandlerP19_EXCEPTION_POINTERS@4" = global i32 0 +@"\01@foo.bar" = global i32 0 + +define weak i32 @"\01??_B?$num_put@_WV?$back_insert_iterator@V?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@@std@@@std@@51"() section ".text" { + %a = load i32* @"\01??__E_Generic_object@?$_Error_objects@H@std@@YAXXZ" + %b = load i32* @"\01__ZL16ExceptionHandlerP19_EXCEPTION_POINTERS@4" + %c = load i32* @"\01@foo.bar" + %x = add i32 %a, %b + %y = add i32 %x, %c + ret i32 %y +} + +; Check that these symbols are not quoted. They occur in output that gets passed to GAS. +; ASM: .globl __ZL16ExceptionHandlerP19_EXCEPTION_POINTERS@4 +; ASM-NOT: .globl "__ZL16ExceptionHandlerP19_EXCEPTION_POINTERS@4" +; ASM: .globl @foo.bar +; ASM-NOT: .globl "@foo.bar" + +; READOBJ: Symbol +; READOBJ: Name: .text$??_B?$num_put@_WV?$back_insert_iterator@V?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@@std@@@std@@51 +; READOBJ: Section: .text$??_B?$num_put@_WV?$back_insert_iterator@V?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@@std@@@std@@51 +; READOBJ: Symbol +; READOBJ: Name: ??_B?$num_put@_WV?$back_insert_iterator@V?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@@std@@@std@@51 +; READOBJ: Section: .text$??_B?$num_put@_WV?$back_insert_iterator@V?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@@std@@@std@@51 +; READOBJ: Symbol +; READOBJ: Name: ??__E_Generic_object@?$_Error_objects@H@std@@YAXXZ +; READOBJ: Symbol +; READOBJ: Name: __ZL16ExceptionHandlerP19_EXCEPTION_POINTERS@4 +; READOBJ: Symbol +; READOBJ: Name: @foo.bar |