diff options
| -rw-r--r-- | lib/Target/X86/X86InstrSSE.td | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td index e8bbcb31a0..66daddbb78 100644 --- a/lib/Target/X86/X86InstrSSE.td +++ b/lib/Target/X86/X86InstrSSE.td @@ -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}", []>; |