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Vector undef's

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26870 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-03-19 09:38:54 +00:00
parent dcfccac13b
commit c12e6c488e
1 changed files with 21 additions and 0 deletions
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21
lib/Target/X86/X86InstrSSE.td
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@ -341,6 +341,14 @@ def FsANDNPDrm : PDI<0x55, MRMSrcMem, (ops FR64:$dst, FR64:$src1, f128mem:$src2)
// SSE packed FP Instructions
//===----------------------------------------------------------------------===//
// Some 'special' instructions
def IMPLICIT_DEF_VR128 : I<0, Pseudo, (ops VR128:$dst),
"#IMPLICIT_DEF $dst",
[(set VR128:$dst, (v4f32 (undef)))]>,
Requires<[HasSSE1]>;
def : Pat<(v2f64 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
// Move Instructions
def MOVAPSrr : PSI<0x28, MRMSrcReg, (ops VR128:$dst, VR128:$src),
"movaps {$src, $dst|$dst, $src}", []>;
@ -686,6 +694,19 @@ def UNPCKLPDrm : PDI<0x14, MRMSrcMem,
// SSE integer instructions
//===----------------------------------------------------------------------===//
// Some 'special' instructions
def IMPLICIT_DEF_VR64 : I<0, Pseudo, (ops VR64:$dst),
"#IMPLICIT_DEF $dst",
[(set VR64:$dst, (v8i8 (undef)))]>,
Requires<[HasMMX]>;
def : Pat<(v4i16 (undef)), (IMPLICIT_DEF_VR64)>, Requires<[HasMMX]>;
def : Pat<(v2i32 (undef)), (IMPLICIT_DEF_VR64)>, Requires<[HasMMX]>;
def : Pat<(v16i8 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
def : Pat<(v8i16 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
def : Pat<(v4i32 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
def : Pat<(v2i64 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>;
// Move Instructions
def MOVD128rr : PDI<0x6E, MRMSrcReg, (ops VR128:$dst, R32:$src),
"movd {$src, $dst|$dst, $src}", []>;