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author | Saleem Abdulrasool <compnerd@compnerd.org> | 2013-12-26 01:52:28 +0000 |
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committer | Saleem Abdulrasool <compnerd@compnerd.org> | 2013-12-26 01:52:28 +0000 |
commit | 68418605322b4168a62cc815c154bee29f0904c9 (patch) | |
tree | 6d0a9446aedf7d50b71205c3a3cefaf786a8bb90 /lib/Target/ARM/AsmParser/ARMAsmParser.cpp | |
parent | 76a1dca38dbea9009cc16b6055e53497d3f756e4 (diff) | |
download | llvm-68418605322b4168a62cc815c154bee29f0904c9.tar.gz llvm-68418605322b4168a62cc815c154bee29f0904c9.tar.bz2 llvm-68418605322b4168a62cc815c154bee29f0904c9.tar.xz |
ARM IAS: support .even directive
The .even directive aligns content to an evan-numbered address. This is an ARM
specific directive applicable to any section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198031 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/AsmParser/ARMAsmParser.cpp')
-rw-r--r-- | lib/Target/ARM/AsmParser/ARMAsmParser.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp index d3b6c78e17..209741aaae 100644 --- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp +++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp @@ -31,6 +31,7 @@ #include "llvm/MC/MCInst.h" #include "llvm/MC/MCInstrDesc.h" #include "llvm/MC/MCInstrInfo.h" +#include "llvm/MC/MCSection.h" #include "llvm/MC/MCParser/MCAsmLexer.h" #include "llvm/MC/MCParser/MCAsmParser.h" #include "llvm/MC/MCParser/MCParsedAsmOperand.h" @@ -227,6 +228,7 @@ class ARMAsmParser : public MCTargetAsmParser { bool parseDirectiveRegSave(SMLoc L, bool IsVector); bool parseDirectiveInst(SMLoc L, char Suffix = '\0'); bool parseDirectiveLtorg(SMLoc L); + bool parseDirectiveEven(SMLoc L); StringRef splitMnemonic(StringRef Mnemonic, unsigned &PredicationCode, bool &CarrySetting, unsigned &ProcessorIMod, @@ -7912,6 +7914,8 @@ bool ARMAsmParser::ParseDirective(AsmToken DirectiveID) { return parseDirectiveInst(DirectiveID.getLoc(), 'w'); else if (IDVal == ".ltorg" || IDVal == ".pool") return parseDirectiveLtorg(DirectiveID.getLoc()); + else if (IDVal == ".even") + return parseDirectiveEven(DirectiveID.getLoc()); return true; } @@ -8476,6 +8480,27 @@ bool ARMAsmParser::parseDirectiveLtorg(SMLoc L) { return false; } +bool ARMAsmParser::parseDirectiveEven(SMLoc L) { + const MCSection *Section = getStreamer().getCurrentSection().first; + + if (getLexer().isNot(AsmToken::EndOfStatement)) { + TokError("unexpected token in directive"); + return false; + } + + if (!Section) { + getStreamer().InitToTextSection(); + Section = getStreamer().getCurrentSection().first; + } + + if (Section->UseCodeAlign()) + getStreamer().EmitCodeAlignment(2, 0); + else + getStreamer().EmitValueToAlignment(2, 0, 1, 0); + + return false; +} + /// Force static initialization. extern "C" void LLVMInitializeARMAsmParser() { RegisterMCAsmParser<ARMAsmParser> X(TheARMTarget); |