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Added anyext, modelled as zext on X86. 

llvm-svn: 24759
This commit is contained in:
Evan Cheng 2005-12-17 01:47:57 +00:00
parent e58ab48ccb
commit b06925d1dd
1 changed files with 5 additions and 0 deletions
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5
llvm/lib/Target/X86/X86InstrInfo.td
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@ -1932,6 +1932,11 @@ def : Pat<(zextloadi32i1 addr:$src), (MOVZX32rm8 addr:$src)>;
// Handling 1 bit extload
def : Pat<(extloadi8i1 addr:$src), (MOV8rm addr:$src)>;
// Modeling anyext as zext
def : Pat<(i16 (anyext R8 :$src)), (MOVZX16rr8 R8 :$src)>;
def : Pat<(i32 (anyext R8 :$src)), (MOVZX32rr8 R8 :$src)>;
def : Pat<(i32 (anyext R16:$src)), (MOVZX32rr16 R16:$src)>;
//===----------------------------------------------------------------------===//
// XMM Floating point support (requires SSE2)
//===----------------------------------------------------------------------===//