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[Compiler-rt][AArch64] Workaround for .cfi_startproc assembler parser bug. 

Put .cfi_startproc on a new line to avoid hitting the assembly parser bug in MasmParser::parseDirectiveCFIStartProc().

Reviewed By: tambre

Differential Revision: https://reviews.llvm.org/D93236
This commit is contained in:
Raul Tambre 2020-12-15 08:12:44 +02:00
parent dc82890a77
commit 3000c19df6
2 changed files with 12 additions and 5 deletions
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9
compiler-rt/lib/builtins/aarch64/lse.S
View File

@ -113,7 +113,8 @@ HIDDEN(__aarch64_have_lse_atomics)
.endm
#ifdef L_cas
DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED(NAME(cas))
DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED_START(NAME(cas))
DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED_END(NAME(cas))
JUMP_IF_NOT_LSE 8f
#if SIZE < 16
#ifdef HAS_ASM_LSE
@ -166,7 +167,8 @@ END_COMPILERRT_OUTLINE_FUNCTION(NAME(cas))
#else
#define SWP .inst 0x38208020 + B + N
#endif
DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED(NAME(swp))
DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED_START(NAME(swp))
DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED_END(NAME(swp))
JUMP_IF_NOT_LSE 8f
SWP // s(0), s(0), [x1]
ret
@ -209,7 +211,8 @@ END_COMPILERRT_OUTLINE_FUNCTION(NAME(swp))
#define LDOP .inst 0x38200020 + OPN + B + N
#endif
DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED(NAME(LDNM))
DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED_START(NAME(LDNM))
DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED_END(NAME(LDNM))
JUMP_IF_NOT_LSE 8f
LDOP // s(0), s(0), [x1]
ret

8
compiler-rt/lib/builtins/assembly.h
View File

@ -243,12 +243,16 @@
DECLARE_FUNC_ENCODING \
name:
#define DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED(name) \
// TODO(ilinpv) START & END parts will be merged when assembly parser bug
// (kristina) in MasmParser::parseDirectiveCFIStartProc() is fixed.
#define DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED_START(name) \
DEFINE_CODE_STATE \
FUNC_ALIGN \
.globl name SEPARATOR \
SYMBOL_IS_FUNC(name) SEPARATOR \
DECLARE_SYMBOL_VISIBILITY(name) SEPARATOR \
DECLARE_SYMBOL_VISIBILITY(name)
#define DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED_END(name) \
CFI_START SEPARATOR \
DECLARE_FUNC_ENCODING \
name: SEPARATOR BTI_C