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author | Akira Hatanaka <ahatanaka@mips.com> | 2012-04-03 02:20:58 +0000 |
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committer | Akira Hatanaka <ahatanaka@mips.com> | 2012-04-03 02:20:58 +0000 |
commit | 885020a7a7299c0cfc12f691bc298e0f41d02190 (patch) | |
tree | 349647d7856d054e2c63f7f627eb0553ac31ed25 /lib/Target/Mips/MCTargetDesc | |
parent | 5aeda3f07684e555f19813e41b7fc101434cfe64 (diff) | |
download | external_llvm-885020a7a7299c0cfc12f691bc298e0f41d02190.zip external_llvm-885020a7a7299c0cfc12f691bc298e0f41d02190.tar.gz external_llvm-885020a7a7299c0cfc12f691bc298e0f41d02190.tar.bz2 |
MIPS disassembler support.
Patch by Vladimir Medic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153924 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/MCTargetDesc')
-rw-r--r-- | lib/Target/Mips/MCTargetDesc/MipsMCTargetDesc.cpp | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/lib/Target/Mips/MCTargetDesc/MipsMCTargetDesc.cpp b/lib/Target/Mips/MCTargetDesc/MipsMCTargetDesc.cpp index 3c544f6..f634f08 100644 --- a/lib/Target/Mips/MCTargetDesc/MipsMCTargetDesc.cpp +++ b/lib/Target/Mips/MCTargetDesc/MipsMCTargetDesc.cpp @@ -34,6 +34,38 @@ using namespace llvm; +static std::string ParseMipsTriple(StringRef TT, StringRef CPU) { + std::string MipsArchFeature; + size_t DashPosition = 0; + StringRef TheTriple; + + // Let's see if there is a dash, like mips-unknown-linux. + DashPosition = TT.find('-'); + + if (DashPosition == StringRef::npos) { + // No dash, we check the string size. + TheTriple = TT.substr(0); + } else { + // We are only interested in substring before dash. + TheTriple = TT.substr(0,DashPosition); + } + + if (TheTriple == "mips" || TheTriple == "mipsel") { + if (CPU.empty() || CPU == "mips32") { + MipsArchFeature = "+mips32"; + } else if (CPU == "mips32r2") { + MipsArchFeature = "+mips32r2"; + } + } else { + if (CPU.empty() || CPU == "mips64") { + MipsArchFeature = "+mips64"; + } else if (CPU == "mips64r2") { + MipsArchFeature = "+mips64r2"; + } + } + return MipsArchFeature; +} + static MCInstrInfo *createMipsMCInstrInfo() { MCInstrInfo *X = new MCInstrInfo(); InitMipsMCInstrInfo(X); @@ -48,8 +80,15 @@ static MCRegisterInfo *createMipsMCRegisterInfo(StringRef TT) { static MCSubtargetInfo *createMipsMCSubtargetInfo(StringRef TT, StringRef CPU, StringRef FS) { + std::string ArchFS = ParseMipsTriple(TT,CPU); + if (!FS.empty()) { + if (!ArchFS.empty()) + ArchFS = ArchFS + "," + FS.str(); + else + ArchFS = FS; + } MCSubtargetInfo *X = new MCSubtargetInfo(); - InitMipsMCSubtargetInfo(X, TT, CPU, FS); + InitMipsMCSubtargetInfo(X, TT, CPU, ArchFS); return X; } |