diff options
Diffstat (limited to 'llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h')
| -rw-r--r-- | llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h b/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h index a87d743fed5..df541f8c499 100644 --- a/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h +++ b/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h @@ -45,7 +45,9 @@ enum OperandType { /// Basic block label in a branch construct. OPERAND_BASIC_BLOCK = MCOI::OPERAND_FIRST_TARGET, /// Floating-point immediate. - OPERAND_FPIMM + OPERAND_FPIMM, + /// p2align immediate for load and store address alignment. + OPERAND_P2ALIGN }; /// WebAssembly-specific directive identifiers. @@ -86,4 +88,47 @@ enum { #define GET_SUBTARGETINFO_ENUM #include "WebAssemblyGenSubtargetInfo.inc" +namespace llvm { +namespace WebAssembly { + +/// Return the default p2align value for a load or store with the given opcode. +inline unsigned GetDefaultP2Align(unsigned Opcode) { + switch (Opcode) { + case WebAssembly::LOAD8_S_I32: + case WebAssembly::LOAD8_U_I32: + case WebAssembly::LOAD8_S_I64: + case WebAssembly::LOAD8_U_I64: + case WebAssembly::STORE8_I32: + case WebAssembly::STORE8_I64: + return 0; + case WebAssembly::LOAD16_S_I32: + case WebAssembly::LOAD16_U_I32: + case WebAssembly::LOAD16_S_I64: + case WebAssembly::LOAD16_U_I64: + case WebAssembly::STORE16_I32: + case WebAssembly::STORE16_I64: + return 1; + case WebAssembly::LOAD_I32: + case WebAssembly::LOAD_F32: + case WebAssembly::STORE_I32: + case WebAssembly::STORE_F32: + case WebAssembly::LOAD32_S_I64: + case WebAssembly::LOAD32_U_I64: + case WebAssembly::STORE32_I64: + return 2; + case WebAssembly::LOAD_I64: + case WebAssembly::LOAD_F64: + case WebAssembly::STORE_I64: + case WebAssembly::STORE_F64: + return 3; + default: llvm_unreachable("Only loads and stores have p2align values"); + } +} + +/// The operand number of the stored value in a store instruction. +static const unsigned StoreValueOperandNo = 4; + +} // end namespace WebAssembly +} // end namespace llvm + #endif |
