Add support for a wider range of CMOV instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12336 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alkis Evlogimenos 2004-03-12 17:59:56 +00:00
parent acd64f3ebe
commit a3f66842b2

View File

@ -292,15 +292,67 @@ def CDQ : I<"cdq", 0x99, RawFrm >, Imp<[EAX],[EDX]>; // EDX:EAX
//
let isTwoAddress = 1 in {
// Conditional moves. These are modelled as X = cmovXX Y, Z. Eventually
// register allocated to cmovXX XY, Z
// Conditional moves
def CMOVB16rr : I <"cmove", 0x42, MRMSrcReg>, TB, OpSize; // if <u, R16 = R16
def CMOVB16rm : Im16<"cmove", 0x42, MRMSrcMem>, TB, OpSize; // if <u, R16 = [mem16]
def CMOVB32rr : I <"cmove", 0x42, MRMSrcReg>, TB; // if <u, R32 = R32
def CMOVB32rm : Im32<"cmove", 0x42, MRMSrcMem>, TB; // if <u, R32 = [mem32]
def CMOVAE16rr: I <"cmove", 0x43, MRMSrcReg>, TB, OpSize; // if >=u, R16 = R16
def CMOVAE16rm: Im16<"cmove", 0x43, MRMSrcMem>, TB, OpSize; // if >=u, R16 = [mem16]
def CMOVAE32rr: I <"cmove", 0x43, MRMSrcReg>, TB; // if >=u, R32 = R32
def CMOVAE32rm: Im32<"cmove", 0x43, MRMSrcMem>, TB; // if >=u, R32 = [mem32]
def CMOVE16rr : I <"cmove", 0x44, MRMSrcReg>, TB, OpSize; // if ==, R16 = R16
def CMOVE16rm : Im16<"cmove", 0x44, MRMSrcMem>, TB, OpSize; // if ==, R16 = [mem16]
def CMOVE32rr : I <"cmove", 0x44, MRMSrcReg>, TB; // if ==, R32 = R32
def CMOVE32rm : Im32<"cmove", 0x44, MRMSrcMem>, TB; // if ==, R32 = [mem32]
def CMOVNE16rr: I <"cmovne",0x45, MRMSrcReg>, TB, OpSize; // if !=, R16 = R16
def CMOVNE16rm: Im16<"cmovne",0x45, MRMSrcMem>, TB, OpSize; // if !=, R16 = [mem16]
def CMOVNE32rr: I <"cmovne",0x45, MRMSrcReg>, TB; // if !=, R32 = R32
def CMOVNE32rm: Im32<"cmovne",0x45, MRMSrcMem>, TB; // if !=, R32 = [mem32]
def CMOVBE16rr: I <"cmovne",0x46, MRMSrcReg>, TB, OpSize; // if <=u, R16 = R16
def CMOVBE16rm: Im16<"cmovne",0x46, MRMSrcMem>, TB, OpSize; // if <=u, R16 = [mem16]
def CMOVBE32rr: I <"cmovne",0x46, MRMSrcReg>, TB; // if <=u, R32 = R32
def CMOVBE32rm: Im32<"cmovne",0x46, MRMSrcMem>, TB; // if <=u, R32 = [mem32]
def CMOVA16rr : I <"cmove", 0x47, MRMSrcReg>, TB, OpSize; // if >u, R16 = R16
def CMOVA16rm : Im16<"cmove", 0x47, MRMSrcMem>, TB, OpSize; // if >u, R16 = [mem16]
def CMOVA32rr : I <"cmove", 0x47, MRMSrcReg>, TB; // if >u, R32 = R32
def CMOVA32rm : Im32<"cmove", 0x47, MRMSrcMem>, TB; // if >u, R32 = [mem32]
def CMOVS16rr : I <"cmovs", 0x48, MRMSrcReg>, TB, OpSize; // if signed, R16 = R16
def CMOVS16rm : Im16<"cmovs", 0x48, MRMSrcMem>, TB, OpSize; // if signed, R16 = [mem16]
def CMOVS32rr : I <"cmovs", 0x48, MRMSrcReg>, TB; // if signed, R32 = R32
def CMOVS32rm : Im32<"cmovs", 0x48, MRMSrcMem>, TB; // if signed, R32 = [mem32]
def CMOVNS16rr: I <"cmovs", 0x49, MRMSrcReg>, TB, OpSize; // if !signed, R16 = R16
def CMOVNS16rm: Im16<"cmovs", 0x49, MRMSrcMem>, TB, OpSize; // if !signed, R16 = [mem16]
def CMOVNS32rr: I <"cmovs", 0x49, MRMSrcReg>, TB; // if !signed, R32 = R32
def CMOVNS32rm: Im32<"cmovs", 0x49, MRMSrcMem>, TB; // if !signed, R32 = [mem32]
def CMOVL16rr : I <"cmove", 0x4C, MRMSrcReg>, TB, OpSize; // if <s, R16 = R16
def CMOVL16rm : Im16<"cmove", 0x4C, MRMSrcMem>, TB, OpSize; // if <s, R16 = [mem16]
def CMOVL32rr : I <"cmove", 0x4C, MRMSrcReg>, TB; // if <s, R32 = R32
def CMOVL32rm : Im32<"cmove", 0x4C, MRMSrcMem>, TB; // if <s, R32 = [mem32]
def CMOVGE16rr: I <"cmove", 0x4D, MRMSrcReg>, TB, OpSize; // if >=s, R16 = R16
def CMOVGE16rm: Im16<"cmove", 0x4D, MRMSrcMem>, TB, OpSize; // if >=s, R16 = [mem16]
def CMOVGE32rr: I <"cmove", 0x4D, MRMSrcReg>, TB; // if >=s, R32 = R32
def CMOVGE32rm: Im32<"cmove", 0x4D, MRMSrcMem>, TB; // if >=s, R32 = [mem32]
def CMOVLE16rr: I <"cmovne",0x4E, MRMSrcReg>, TB, OpSize; // if <=s, R16 = R16
def CMOVLE16rm: Im16<"cmovne",0x4E, MRMSrcMem>, TB, OpSize; // if <=s, R16 = [mem16]
def CMOVLE32rr: I <"cmovne",0x4E, MRMSrcReg>, TB; // if <=s, R32 = R32
def CMOVLE32rm: Im32<"cmovne",0x4E, MRMSrcMem>, TB; // if <=s, R32 = [mem32]
def CMOVG16rr : I <"cmove", 0x4F, MRMSrcReg>, TB, OpSize; // if >s, R16 = R16
def CMOVG16rm : Im16<"cmove", 0x4F, MRMSrcMem>, TB, OpSize; // if >s, R16 = [mem16]
def CMOVG32rr : I <"cmove", 0x4F, MRMSrcReg>, TB; // if >s, R32 = R32
def CMOVG32rm : Im32<"cmove", 0x4F, MRMSrcMem>, TB; // if >s, R32 = [mem32]
// unary instructions
def NEG8r : I <"neg", 0xF6, MRM3r>; // R8 = -R8 = 0-R8
def NEG16r : I <"neg", 0xF7, MRM3r>, OpSize; // R16 = -R16 = 0-R16