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RECAPITALIZE all the names of pseudo-instructions, and add a comment explaining

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the convention.

:-)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6791 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Brian Gaeke 2003-06-19 19:41:13 +00:00
parent 96b07e54dd
commit 088fa1162d
1 changed files with 16 additions and 13 deletions
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29
lib/Target/X86/X86InstrInfo.def
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@ -48,7 +48,10 @@ IMPREGSLIST(O_ST0, X86::ST0, 0)
// Arguments to be passed into the I macro
// #1: Enum name - This ends up being the opcode symbol in the X86 namespace
// #2: Opcode name, as used by the gnu assembler
// #2: Opcode name, as used by the Intel assembler. This should be in
// ALL CAPS for pseudo-instructions (which the assembler should never
// see), or all lowercase for real instructions (which the assembler
// should see).
// #3: The base opcode for the instruction
// #4: Instruction Flags - This should be a field or'd together that contains
// constants from the TargetInstrInfo.h file.
@ -60,7 +63,7 @@ IMPREGSLIST(O_ST0, X86::ST0, 0)
//
// The first instruction must always be the PHI instruction:
I(PHI , "phi", 0, 0, X86II::Pseudo , NoIR, NoIR)
I(PHI , "PHI", 0, 0, X86II::Pseudo , NoIR, NoIR)
// The second instruction must always be the noop instruction:
I(NOOP , "nop", 0x90, 0, X86II::RawFrm | X86II::Void, NoIR, NoIR) // nop
@ -72,18 +75,18 @@ I(NOOP , "nop", 0x90, 0, X86II::RawFrm | X86II::Void, NoIR,
// instruction turns into a noop, but if the frame pointer is retained, this
// turns into a 'sub ESP, <amount>'.
//
I(ADJCALLSTACKDOWN, "adjcallstackdown", 0, 0, X86II::Pseudo, NoIR, NoIR)
I(ADJCALLSTACKDOWN, "ADJCALLSTACKDOWN", 0, 0, X86II::Pseudo, NoIR, NoIR)
// This instruction is used to mark readjustment of the stack after a function
// call. If the frame pointer is retained, this becomes a 'add ESP, <amount>'
// instruction after the call.
I(ADJCALLSTACKUP , "adjcallstackup" , 0, 0, X86II::Pseudo, NoIR, NoIR)
I(ADJCALLSTACKUP , "ADJCALLSTACKUP" , 0, 0, X86II::Pseudo, NoIR, NoIR)
// This pseudo-instruction is used to record implicit uses of physical registers
// at the end of the function. This ensures that bad things aren't done to
// registes that are live on exit from the function (for example, EAX).
//
I(IMPLICIT_USE, "implicit_use", 0, 0, X86II::Pseudo, NoIR, NoIR)
I(IMPLICIT_USE, "IMPLICIT_USE", 0, 0, X86II::Pseudo, NoIR, NoIR)
// Flow control instructions
@ -288,15 +291,15 @@ I(MOVZXr32r16 , "movzx", 0xB7, 0, X86II::MRMSrcReg | X86II::TB, NoIR
// FIXME: These need to indicate mod/ref sets for FP regs... & FP 'TOP'
// Floating point pseudo instructions...
I(FpMOV , "fmov" , 0, M_PSEUDO_FLAG, X86II::ArgF80 | X86II::Pseudo | X86II::SpecialFP, NoIR, NoIR) // f1 = fmov f2
I(FpADD , "fadd" , 0, M_PSEUDO_FLAG, X86II::ArgF80 | X86II::Pseudo | X86II::TwoArgFP , NoIR, NoIR) // f1 = fadd f2, f3
I(FpSUB , "fsub" , 0, M_PSEUDO_FLAG, X86II::ArgF80 | X86II::Pseudo | X86II::TwoArgFP , NoIR, NoIR) // f1 = fsub f2, f3
I(FpMUL , "fmul" , 0, M_PSEUDO_FLAG, X86II::ArgF80 | X86II::Pseudo | X86II::TwoArgFP , NoIR, NoIR) // f1 = fmul f2, f3
I(FpDIV , "fdiv" , 0, M_PSEUDO_FLAG, X86II::ArgF80 | X86II::Pseudo | X86II::TwoArgFP , NoIR, NoIR) // f1 = fdiv f2, f3
I(FpUCOM , "fucom", 0, M_PSEUDO_FLAG, X86II::Void | X86II::ArgF80 | X86II::Pseudo | X86II::TwoArgFP , NoIR, NoIR) // FPSW = fucom f1, f2
I(FpMOV , "FMOV" , 0, M_PSEUDO_FLAG, X86II::ArgF80 | X86II::Pseudo | X86II::SpecialFP, NoIR, NoIR) // f1 = fmov f2
I(FpADD , "FADD" , 0, M_PSEUDO_FLAG, X86II::ArgF80 | X86II::Pseudo | X86II::TwoArgFP , NoIR, NoIR) // f1 = fadd f2, f3
I(FpSUB , "FSUB" , 0, M_PSEUDO_FLAG, X86II::ArgF80 | X86II::Pseudo | X86II::TwoArgFP , NoIR, NoIR) // f1 = fsub f2, f3
I(FpMUL , "FMUL" , 0, M_PSEUDO_FLAG, X86II::ArgF80 | X86II::Pseudo | X86II::TwoArgFP , NoIR, NoIR) // f1 = fmul f2, f3
I(FpDIV , "FDIV" , 0, M_PSEUDO_FLAG, X86II::ArgF80 | X86II::Pseudo | X86II::TwoArgFP , NoIR, NoIR) // f1 = fdiv f2, f3
I(FpUCOM , "FUCOM", 0, M_PSEUDO_FLAG, X86II::Void | X86II::ArgF80 | X86II::Pseudo | X86II::TwoArgFP , NoIR, NoIR) // FPSW = fucom f1, f2
I(FpGETRESULT , "fgetresult",0, M_PSEUDO_FLAG, X86II::Pseudo | X86II::SpecialFP, NoIR, NoIR) // FPR = ST(0)
I(FpSETRESULT , "fsetresult",0, M_PSEUDO_FLAG | M_TERMINATOR_FLAG, X86II::Void | X86II::Pseudo | X86II::SpecialFP, NoIR, NoIR) // ST(0) = FPR
I(FpGETRESULT , "FGETRESULT",0, M_PSEUDO_FLAG, X86II::Pseudo | X86II::SpecialFP, NoIR, NoIR) // FPR = ST(0)
I(FpSETRESULT , "FSETRESULT",0, M_PSEUDO_FLAG | M_TERMINATOR_FLAG, X86II::Void | X86II::Pseudo | X86II::SpecialFP, NoIR, NoIR) // ST(0) = FPR
// Floating point loads & stores... PREFIX ARGTYPE ENCODING FP INST TYPE REF MOD
I(FLDr32 , "fld", 0xD9, 0, X86II::ArgF32 | X86II::MRMS0m | X86II::ZeroArgFP, NoIR, NoIR) // load float