ghc-9.10.1: The GHC API
Safe HaskellNone
LanguageGHC2021

GHC.CmmToAsm.PPC.Instr

Synopsis

Documentation

data Instr Source #

Constructors

COMMENT FastString 
LOCATION Int Int Int String 
LDATA Section RawCmmStatics 
NEWBLOCK BlockId 
DELTA Int 
LD Format Reg AddrMode 
LDFAR Format Reg AddrMode 
LDR Format Reg AddrMode 
LA Format Reg AddrMode 
ST Format Reg AddrMode 
STFAR Format Reg AddrMode 
STU Format Reg AddrMode 
STC Format Reg AddrMode 
LIS Reg Imm 
LI Reg Imm 
MR Reg Reg 
CMP Format Reg RI 
CMPL Format Reg RI 
BCC Cond BlockId (Maybe Bool) 
BCCFAR Cond BlockId (Maybe Bool) 
JMP CLabel [Reg] 
MTCTR Reg 
BCTR [Maybe BlockId] (Maybe CLabel) [Reg] 
BL CLabel [Reg] 
BCTRL [Reg] 
ADD Reg Reg RI 
ADDO Reg Reg Reg 
ADDC Reg Reg Reg 
ADDE Reg Reg Reg 
ADDZE Reg Reg 
ADDIS Reg Reg Imm 
SUBF Reg Reg Reg 
SUBFO Reg Reg Reg 
SUBFC Reg Reg RI 
SUBFE Reg Reg Reg 
MULL Format Reg Reg RI 
MULLO Format Reg Reg Reg 
MFOV Format Reg 
MULHU Format Reg Reg Reg 
DIV Format Bool Reg Reg Reg 
AND Reg Reg RI 
ANDC Reg Reg Reg 
NAND Reg Reg Reg 
OR Reg Reg RI 
ORIS Reg Reg Imm 
XOR Reg Reg RI 
XORIS Reg Reg Imm 
EXTS Format Reg Reg 
CNTLZ Format Reg Reg 
NEG Reg Reg 
NOT Reg Reg 
SL Format Reg Reg RI 
SR Format Reg Reg RI 
SRA Format Reg Reg RI 
RLWINM Reg Reg Int Int Int 
CLRLI Format Reg Reg Int 
CLRRI Format Reg Reg Int 
FADD Format Reg Reg Reg 
FSUB Format Reg Reg Reg 
FMUL Format Reg Reg Reg 
FDIV Format Reg Reg Reg 
FABS Reg Reg 
FNEG Reg Reg 
FMADD FMASign Format Reg Reg Reg Reg

Fused multiply-add instructions.

  • FMADD: rd = (ra * rb) + rd
  • FMSUB: rd = ra * rb - rd
  • FNMADD: rd = -(ra * rb + rd)
  • FNMSUB: rd = -(ra * rb - rd)
FCMP Reg Reg 
FCTIWZ Reg Reg 
FCTIDZ Reg Reg 
FCFID Reg Reg 
FRSP Reg Reg 
CRNOR Int Int Int 
MFCR Reg 
MFLR Reg 
FETCHPC Reg 
HWSYNC 
ISYNC 
LWSYNC 
NOP 

data RI Source #

Constructors

RIReg Reg 
RIImm Imm 

stackFrameHeaderSize :: Platform -> Int Source #

The size of a minimal stackframe header including minimal parameter save area.

maxSpillSlots :: NCGConfig -> Int Source #

The number of spill slots available without allocating more.

mkJumpInstr :: BlockId -> [Instr] Source #

Make an unconditional jump instruction.

mkSpillInstr :: NCGConfig -> Reg -> Int -> Int -> [Instr] Source #

An instruction to spill a register into a spill slot.

patchJumpInstr :: Instr -> (BlockId -> BlockId) -> Instr Source #

Change the destination of this jump instruction. Used in the linear allocator when adding fixup blocks for join points.

patchRegsOfInstr :: Instr -> (Reg -> Reg) -> Instr Source #

Apply a given mapping to all the register references in this instruction.

jumpDestsOfInstr :: Instr -> [BlockId] Source #

Checks whether this instruction is a jump/branch instruction. One that can change the flow of control in a way that the register allocator needs to worry about.

takeRegRegMoveInstr :: Instr -> Maybe (Reg, Reg) Source #

Take the source and destination from this reg -> reg move instruction or Nothing if it's not one

takeDeltaInstr :: Instr -> Maybe Int Source #

See if this instruction is telling us the current C stack delta

mkRegRegMoveInstr :: Reg -> Reg -> Instr Source #

Copy the value in a register to another one. Must work for all register classes.

regUsageOfInstr :: Platform -> Instr -> RegUsage Source #

Get the registers that are being used by this instruction. regUsage doesn't need to do any trickery for jumps and such. Just state precisely the regs read and written by that insn. The consequences of control flow transfers, as far as register allocation goes, are taken care of by the register allocator.

isJumpishInstr :: Instr -> Bool Source #

Checks whether this instruction is a jump/branch instruction. One that can change the flow of control in a way that the register allocator needs to worry about.