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| author | Alex Bradbury <asb@lowrisc.org> | 2017-12-07 13:19:57 +0000 |
|---|---|---|
| committer | Alex Bradbury <asb@lowrisc.org> | 2017-12-07 13:19:57 +0000 |
| commit | f8f4b905448ae242ea08c84c0a36abc0431dc98b (patch) | |
| tree | 87bd86c19960e3e11d24595ddf18a06a049e201d /llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp | |
| parent | 9f6aec4b7aab9a0c0d33bff634af0e148ed580ef (diff) | |
| download | bcm5719-llvm-f8f4b905448ae242ea08c84c0a36abc0431dc98b.tar.gz bcm5719-llvm-f8f4b905448ae242ea08c84c0a36abc0431dc98b.zip | |
[RISCV] MC layer support for the jump/branch instructions of the RVC extension
Differential Revision: https://reviews.llvm.org/D40002
Patch by Shiva Chen.
llvm-svn: 320038
Diffstat (limited to 'llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp')
| -rw-r--r-- | llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp b/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp index c4a3116b33a..cde00f5d515 100644 --- a/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp +++ b/llvm/lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp @@ -249,6 +249,8 @@ public: VK == RISCVMCExpr::VK_RISCV_None; } + bool isSImm9Lsb0() const { return isBareSimmNLsb0<9>(); } + bool isUImm9Lsb000() const { int64_t Imm; RISCVMCExpr::VariantKind VK; @@ -272,6 +274,8 @@ public: (VK == RISCVMCExpr::VK_RISCV_None || VK == RISCVMCExpr::VK_RISCV_LO); } + bool isSImm12Lsb0() const { return isBareSimmNLsb0<12>(); } + bool isUImm12() const { int64_t Imm; RISCVMCExpr::VariantKind VK; @@ -552,6 +556,10 @@ bool RISCVAsmParser::MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode, return generateImmOutOfRangeError( Operands, ErrorInfo, 0, (1 << 8) - 8, "immediate must be a multiple of 8 bytes in the range"); + case Match_InvalidSImm9Lsb0: + return generateImmOutOfRangeError( + Operands, ErrorInfo, -(1 << 8), (1 << 8) - 2, + "immediate must be a multiple of 2 bytes in the range"); case Match_InvalidUImm9Lsb000: return generateImmOutOfRangeError( Operands, ErrorInfo, 0, (1 << 9) - 8, @@ -559,6 +567,10 @@ bool RISCVAsmParser::MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode, case Match_InvalidSImm12: return generateImmOutOfRangeError(Operands, ErrorInfo, -(1 << 11), (1 << 11) - 1); + case Match_InvalidSImm12Lsb0: + return generateImmOutOfRangeError( + Operands, ErrorInfo, -(1 << 11), (1 << 11) - 2, + "immediate must be a multiple of 2 bytes in the range"); case Match_InvalidUImm12: return generateImmOutOfRangeError(Operands, ErrorInfo, 0, (1 << 12) - 1); case Match_InvalidSImm13Lsb0: |
