llvm-project/llvm/lib/MC
Reid Kleckner 953bdce68d [MC] Separate masm integer literal lexer support from inline asm
Summary:
This renames the IsParsingMSInlineAsm member variable of AsmLexer to
LexMasmIntegers and moves it up to MCAsmLexer. This is the only behavior
controlled by that variable. I added a public setter, so that it can be
set from outside or from the llvm-mc command line. We may need to
arrange things so that users can get this behavior from clang, but
that's future work.

I also put additional hex literal lexing functionality under this flag
to fix PR32973. It appears that this hex literal parsing wasn't intended
to be enabled in non-masm-style blocks.

Now, masm integers (0b1101 and 0ABCh) work in __asm blocks from clang,
but 0b label references work when using .intel_syntax in standalone .s
files.

However, 0b label references will *not* work from __asm blocks in clang.
They will work from GCC inline asm blocks, which it sounds like is
important for Crypto++ as mentioned in PR36144.

Essentially, we only lex masm literals for inline asm blobs that use
intel syntax. If the .intel_syntax directive is used inside a gnu-style
inline asm statement, masm literals will not be lexed, which is
compatible with gas and llvm-mc standalone .s assembly.

This fixes PR36144 and PR32973.

Reviewers: Gerolf, avt77

Subscribers: eraman, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D53535

llvm-svn: 345189
2018-10-24 20:23:57 +00:00
..
MCDisassembler Remove trailing space 2018-07-30 19:41:25 +00:00
MCParser [MC] Separate masm integer literal lexer support from inline asm 2018-10-24 20:23:57 +00:00
CMakeLists.txt Revert BTF commit series. 2018-10-12 19:41:05 +00:00
ConstantPools.cpp [MC] - ConstantPools.cpp: Style consistency, remove redundant braces. NFC. 2018-09-03 03:48:39 +00:00
ELFObjectWriter.cpp The initial .text section generated in object files was missing the 2018-09-06 22:09:31 +00:00
LLVMBuild.txt [WebAssembly] Move toString helpers to BinaryFormat 2018-05-14 22:42:07 +00:00
MCAsmBackend.cpp [RISCV] Add symbol diff relocation support for RISC-V 2018-05-23 12:36:18 +00:00
MCAsmInfo.cpp [DEBUGINFO] Add option that allows to disable emission of flags in .loc directives. 2018-04-03 17:28:55 +00:00
MCAsmInfoCOFF.cpp Revert "[COFF] Use comdat shared constants for MinGW as well" 2018-07-26 10:48:20 +00:00
MCAsmInfoDarwin.cpp
MCAsmInfoELF.cpp
MCAsmInfoWasm.cpp [WebAssembly] clang-format (NFC) 2018-09-05 01:27:38 +00:00
MCAsmMacro.cpp [Asm] Fix another layering violation in assmebly macro dumping 2018-03-06 16:51:17 +00:00
MCAsmStreamer.cpp [DEBUGINFO, NVPTX] Try to pack bytes data into a single string. 2018-10-24 14:04:00 +00:00
MCAssembler.cpp [DebugInfo] Fix build failed in clang-x86_64-linux-selfhost-modules. 2018-08-01 04:17:41 +00:00
MCCodeEmitter.cpp
MCCodePadder.cpp [MC] Adding code padding for performance stability - infrastructure. NFC. 2017-10-24 06:16:03 +00:00
MCCodeView.cpp [codeview] Clean up machinery for deferring .cv_loc emission 2018-08-28 23:25:59 +00:00
MCContext.cpp Revert BTF commit series. 2018-10-12 19:41:05 +00:00
MCDwarf.cpp Revert r343317 2018-09-28 17:01:50 +00:00
MCELFObjectTargetWriter.cpp The initial .text section generated in object files was missing the 2018-09-06 22:09:31 +00:00
MCELFStreamer.cpp [MC] Error on a .zerofill directive in a non-virtual section 2018-07-02 17:29:43 +00:00
MCExpr.cpp [mips][micromips] Fix how values in .gcc_except_table are calculated 2018-10-16 08:27:28 +00:00
MCFragment.cpp Fix typoed cast to avoid assertion in MCFragment::dump. 2018-06-18 16:26:11 +00:00
MCInst.cpp IWYU for llvm-config.h in llvm, additions. 2018-04-30 14:59:11 +00:00
MCInstPrinter.cpp
MCInstrAnalysis.cpp [TableGen][SubtargetEmitter] Add the ability for processor models to describe dependency breaking instructions. 2018-09-19 15:57:45 +00:00
MCInstrDesc.cpp
MCLabel.cpp IWYU for llvm-config.h in llvm, additions. 2018-04-30 14:59:11 +00:00
MCLinkerOptimizationHint.cpp MC: Change object writers to use endian::Writer. NFCI. 2018-05-21 18:17:42 +00:00
MCMachOStreamer.cpp [MC] Error on a .zerofill directive in a non-virtual section 2018-07-02 17:29:43 +00:00
MCMachObjectTargetWriter.cpp
MCNullStreamer.cpp [MC] Error on a .zerofill directive in a non-virtual section 2018-07-02 17:29:43 +00:00
MCObjectFileInfo.cpp Add missed file from previous commit (r344838) 2018-10-20 08:55:51 +00:00
MCObjectStreamer.cpp Revert BTF commit series. 2018-10-12 19:41:05 +00:00
MCObjectWriter.cpp
MCRegisterInfo.cpp [MC] Improve error message when a codeview register is unknown 2018-08-17 21:35:14 +00:00
MCSchedule.cpp [CodeGen] assume max/default throughput for unspecified instructions 2018-06-05 23:34:45 +00:00
MCSection.cpp The initial .text section generated in object files was missing the 2018-09-06 22:09:31 +00:00
MCSectionCOFF.cpp [COFF] Fix assembly output of comdat sections without an attached symbol 2018-07-23 22:15:19 +00:00
MCSectionELF.cpp [MC] Add assembler support for .cg_profile. 2018-06-02 16:33:01 +00:00
MCSectionMachO.cpp
MCSectionWasm.cpp Remove redundant includes from lib/MC. 2017-12-13 21:30:54 +00:00
MCStreamer.cpp [DEBUGINFO, NVPTX] Try to pack bytes data into a single string. 2018-10-24 14:04:00 +00:00
MCSubtargetInfo.cpp [MC] fix documentation comments; NFC 2018-03-22 15:23:21 +00:00
MCSymbol.cpp IWYU for llvm-config.h in llvm, additions. 2018-04-30 14:59:11 +00:00
MCSymbolELF.cpp Remove redundant includes from lib/MC. 2017-12-13 21:30:54 +00:00
MCTargetOptions.cpp
MCValue.cpp IWYU for llvm-config.h in llvm, additions. 2018-04-30 14:59:11 +00:00
MCWasmObjectTargetWriter.cpp [WebAssembly] Remove unused headers in MCWasmObjectWriter 2018-05-16 22:13:18 +00:00
MCWasmStreamer.cpp [WebAssembly] Cleanup of the way globals and global flags are handled 2018-08-03 14:33:37 +00:00
MCWin64EH.cpp Remove redundant includes from lib/MC. 2017-12-13 21:30:54 +00:00
MCWinCOFFStreamer.cpp [MC] Add support for the .rva assembler directive for COFF targets 2018-07-26 20:11:26 +00:00
MCWinEH.cpp
MachObjectWriter.cpp llvm::sort(C.begin(), C.end(), ...) -> llvm::sort(C, ...) 2018-09-27 02:13:45 +00:00
StringTableBuilder.cpp [DWARFv5] Emit .debug_line_str (in a non-DWO file). 2018-02-06 20:29:21 +00:00
SubtargetFeature.cpp IWYU for llvm-config.h in llvm, additions. 2018-04-30 14:59:11 +00:00
WasmObjectWriter.cpp Revert "[WebAssembly] LSDA info generation" 2018-10-16 18:50:09 +00:00
WinCOFFObjectWriter.cpp llvm::sort(C.begin(), C.end(), ...) -> llvm::sort(C, ...) 2018-09-27 02:13:45 +00:00