diff options
Diffstat (limited to 'llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCCodeEmitter.cpp')
| -rw-r--r-- | llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCCodeEmitter.cpp | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCCodeEmitter.cpp b/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCCodeEmitter.cpp index dfed3451e45b..55bf5d14fdac 100644 --- a/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCCodeEmitter.cpp +++ b/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCCodeEmitter.cpp @@ -62,12 +62,16 @@ void WebAssemblyMCCodeEmitter::encodeInstruction( uint64_t Start = OS.tell(); uint64_t Binary = getBinaryCodeForInstr(MI, Fixups, STI); - if (Binary <= UINT8_MAX) { + if (Binary < (1 << 8)) { OS << uint8_t(Binary); - } else { - assert(Binary <= UINT16_MAX && "Several-byte opcodes not supported yet"); + } else if (Binary < (1 << 16)) { OS << uint8_t(Binary >> 8); encodeULEB128(uint8_t(Binary), OS); + } else if (Binary < (1 << 24)) { + OS << uint8_t(Binary >> 16); + encodeULEB128(uint16_t(Binary), OS); + } else { + llvm_unreachable("Very large (prefix + 3 byte) opcodes not supported"); } // For br_table instructions, encode the size of the table. In the MCInst, @@ -102,6 +106,7 @@ void WebAssemblyMCCodeEmitter::encodeInstruction( encodeSLEB128(int64_t(MO.getImm()), OS); break; case WebAssembly::OPERAND_SIGNATURE: + case WebAssembly::OPERAND_HEAPTYPE: OS << uint8_t(MO.getImm()); break; case WebAssembly::OPERAND_VEC_I8IMM: @@ -151,6 +156,7 @@ void WebAssemblyMCCodeEmitter::encodeInstruction( PaddedSize = 10; break; case WebAssembly::OPERAND_FUNCTION32: + case WebAssembly::OPERAND_TABLE: case WebAssembly::OPERAND_OFFSET32: case WebAssembly::OPERAND_SIGNATURE: case WebAssembly::OPERAND_TYPEINDEX: |