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Add support for 8 bit immediates with 16/32 bit cmp instructions

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26966 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nate Begeman 2006-03-23 01:29:48 +00:00
parent 7e358908b8
commit ce9448218a
1 changed files with 16 additions and 0 deletions
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16
lib/Target/X86/X86InstrInfo.td
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@ -2203,6 +2203,22 @@ def CMP32mi : Ii32<0x81, MRM7m,
(ops i32mem:$src1, i32imm:$src2),
"cmp{l} {$src2, $src1|$src1, $src2}",
[(X86cmp (loadi32 addr:$src1), imm:$src2)]>;
def CMP16ri8 : Ii16<0x83, MRM7r,
(ops R16:$src1, i16i8imm:$src2),
"cmp{w} {$src2, $src1|$src1, $src2}",
[(X86cmp R16:$src1, i16immSExt8:$src2)]>, OpSize;
def CMP16mi8 : Ii16<0x83, MRM7m,
(ops i16mem:$src1, i16i8imm:$src2),
"cmp{w} {$src2, $src1|$src1, $src2}",
[(X86cmp (loadi16 addr:$src1), i16immSExt8:$src2)]>, OpSize;
def CMP32mi8 : Ii32<0x83, MRM7m,
(ops i32mem:$src1, i32i8imm:$src2),
"cmp{l} {$src2, $src1|$src1, $src2}",
[(X86cmp (loadi32 addr:$src1), i32immSExt8:$src2)]>;
def CMP32ri8 : Ii32<0x83, MRM7r,
(ops R32:$src1, i32i8imm:$src2),
"cmp{l} {$src2, $src1|$src1, $src2}",
[(X86cmp R32:$src1, i32immSExt8:$src2)]>;
// Sign/Zero extenders
def MOVSX16rr8 : I<0xBE, MRMSrcReg, (ops R16:$dst, R8 :$src),