diff options
Diffstat (limited to 'deps/v8/src/ppc/macro-assembler-ppc.h')
| -rw-r--r-- | deps/v8/src/ppc/macro-assembler-ppc.h | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/deps/v8/src/ppc/macro-assembler-ppc.h b/deps/v8/src/ppc/macro-assembler-ppc.h index 2e415d6b6b..c0992c9171 100644 --- a/deps/v8/src/ppc/macro-assembler-ppc.h +++ b/deps/v8/src/ppc/macro-assembler-ppc.h @@ -102,7 +102,9 @@ class MacroAssembler : public Assembler { MacroAssembler(Isolate* isolate, void* buffer, int size); - // Returns the size of a call in instructions. + // Returns the size of a call in instructions. Note, the value returned is + // only valid as long as no entries are added to the constant pool between + // checking the call size and emitting the actual call. static int CallSize(Register target); int CallSize(Address target, RelocInfo::Mode rmode, Condition cond = al); static int CallSizeNotPredictableCodeSize(Address target, @@ -1061,11 +1063,16 @@ class MacroAssembler : public Assembler { DCHECK(rangeStart >= rangeEnd && rangeStart < kBitsPerPointer); int rotate = (rangeEnd == 0) ? 0 : kBitsPerPointer - rangeEnd; int width = rangeStart - rangeEnd + 1; + if (rc == SetRC && rangeEnd == 0 && width <= 16) { + andi(dst, src, Operand((1 << width) - 1)); + } else { #if V8_TARGET_ARCH_PPC64 - rldicl(dst, src, rotate, kBitsPerPointer - width, rc); + rldicl(dst, src, rotate, kBitsPerPointer - width, rc); #else - rlwinm(dst, src, rotate, kBitsPerPointer - width, kBitsPerPointer - 1, rc); + rlwinm(dst, src, rotate, kBitsPerPointer - width, kBitsPerPointer - 1, + rc); #endif + } } inline void ExtractBit(Register dst, Register src, uint32_t bitNumber, @@ -1360,7 +1367,11 @@ class MacroAssembler : public Assembler { // --------------------------------------------------------------------------- // Patching helpers. - // Retrieve/patch the relocated value (lis/ori pair). + // Decode offset from constant pool load instruction(s). + // Caller must place the instruction word at <location> in <result>. + void DecodeConstantPoolOffset(Register result, Register location); + + // Retrieve/patch the relocated value (lis/ori pair or constant pool load). void GetRelocatedValue(Register location, Register result, Register scratch); void SetRelocatedValue(Register location, Register scratch, Register new_value); @@ -1449,6 +1460,19 @@ class MacroAssembler : public Assembler { void JumpIfDictionaryInPrototypeChain(Register object, Register scratch0, Register scratch1, Label* found); + // Loads the constant pool pointer (kConstantPoolRegister). + void LoadConstantPoolPointerRegisterFromCodeTargetAddress( + Register code_target_address); + void LoadConstantPoolPointerRegister(); + void LoadConstantPoolPointerRegister(Register base, int code_entry_delta = 0); + + void AbortConstantPoolBuilding() { +#ifdef DEBUG + // Avoid DCHECK(!is_linked()) failure in ~Label() + bind(ConstantPoolPosition()); +#endif + } + private: static const int kSmiShift = kSmiTagSize + kSmiShiftSize; |