diff options
Diffstat (limited to 'src/arm/macro-assembler-arm.h')
| -rw-r--r-- | src/arm/macro-assembler-arm.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/arm/macro-assembler-arm.h b/src/arm/macro-assembler-arm.h index 48a80599..8bd134c3 100644 --- a/src/arm/macro-assembler-arm.h +++ b/src/arm/macro-assembler-arm.h @@ -264,6 +264,14 @@ class MacroAssembler: public Assembler { void LoadContext(Register dst, int context_chain_length); + void LoadGlobalFunction(int index, Register function); + + // Load the initial map from the global function. The registers + // function and map can be the same, function is then overwritten. + void LoadGlobalFunctionInitialMap(Register function, + Register map, + Register scratch); + // --------------------------------------------------------------------------- // JavaScript invokes @@ -319,6 +327,40 @@ class MacroAssembler: public Assembler { Register scratch, Label* miss); + inline void MarkCode(NopMarkerTypes type) { + nop(type); + } + + // Check if the given instruction is a 'type' marker. + // ie. check if is is a mov r<type>, r<type> (referenced as nop(type)) + // These instructions are generated to mark special location in the code, + // like some special IC code. + static inline bool IsMarkedCode(Instr instr, int type) { + ASSERT((FIRST_IC_MARKER <= type) && (type < LAST_CODE_MARKER)); + return IsNop(instr, type); + } + + + static inline int GetCodeMarker(Instr instr) { + int dst_reg_offset = 12; + int dst_mask = 0xf << dst_reg_offset; + int src_mask = 0xf; + int dst_reg = (instr & dst_mask) >> dst_reg_offset; + int src_reg = instr & src_mask; + uint32_t non_register_mask = ~(dst_mask | src_mask); + uint32_t mov_mask = al | 13 << 21; + + // Return <n> if we have a mov rn rn, else return -1. + int type = ((instr & non_register_mask) == mov_mask) && + (dst_reg == src_reg) && + (FIRST_IC_MARKER <= dst_reg) && (dst_reg < LAST_CODE_MARKER) + ? src_reg + : -1; + ASSERT((type == -1) || + ((FIRST_IC_MARKER <= type) && (type < LAST_CODE_MARKER))); + return type; + } + // --------------------------------------------------------------------------- // Allocation support @@ -727,6 +769,16 @@ class CodePatcher { // ----------------------------------------------------------------------------- // Static helper functions. +static MemOperand ContextOperand(Register context, int index) { + return MemOperand(context, Context::SlotOffset(index)); +} + + +static inline MemOperand GlobalObjectOperand() { + return ContextOperand(cp, Context::GLOBAL_INDEX); +} + + #ifdef GENERATED_CODE_COVERAGE #define CODE_COVERAGE_STRINGIFY(x) #x #define CODE_COVERAGE_TOSTRING(x) CODE_COVERAGE_STRINGIFY(x) |