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Add basic support for 16 and 32 bit function arguments! 

llvm-svn: 7755
This commit is contained in:
Chris Lattner 2003-08-11 21:30:00 +00:00
parent 6088a0b4cb
commit 7606fa0d41
1 changed files with 14 additions and 2 deletions
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16
llvm/lib/Target/X86/X86InstrInfo.td
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@ -175,8 +175,10 @@ def MOVim16 : X86Inst<"mov", 0xC7, MRMS0m , Arg16>, OpSize; // [mem] = imm
def MOVim32 : X86Inst<"mov", 0xC7, MRMS0m , Arg32>; // [mem] = imm32
def MOVmr8 : X86Inst<"mov", 0x8A, MRMSrcMem , Arg8>; // R8 = [mem]
def MOVmr16 : X86Inst<"mov", 0x8B, MRMSrcMem , Arg16>, OpSize; // R16 = [mem]
def MOVmr32 : X86Inst<"mov", 0x8B, MRMSrcMem , Arg32>; // R32 = [mem]
def MOVmr16 : X86Inst<"mov", 0x8B, MRMSrcMem , Arg16>, OpSize, // R16 = [mem]
Pattern<(set R16, (load (plus R32, (plus (times imm, R32), imm))))>;
def MOVmr32 : X86Inst<"mov", 0x8B, MRMSrcMem , Arg32>, // R32 = [mem]
Pattern<(set R32, (load (plus R32, (plus (times imm, R32), imm))))>;
def MOVrm8 : X86Inst<"mov", 0x88, MRMDestMem, Arg8>; // [mem] = R8
def MOVrm16 : X86Inst<"mov", 0x89, MRMDestMem, Arg16>, OpSize; // [mem] = R16
@ -439,3 +441,13 @@ def FLDCWm16 : X86Inst<"fldcw" , 0xD9, MRMS5m , Arg16 >;
def RET_R32 : Expander<(ret R32:$reg),
[(MOVrr32 EAX, R32:$reg),
(RET)]>;
// FIXME: This should eventually just be implemented by defining a frameidx as a
// value address for a load.
def LOAD_FI16 : Expander<(set R16:$dest, (load frameidx:$fi)),
[(MOVmr16 R16:$dest, frameidx:$fi, 1, 0/*NoReg*/, 0)]>;
def LOAD_FI32 : Expander<(set R32:$dest, (load frameidx:$fi)),
[(MOVmr32 R32:$dest, frameidx:$fi, 1, 0/*NoReg*/, 0)]>;