Changes in directory llvm/lib/Target/X86:
X86InstrSSE.td updated: 1.127 -> 1.128 --- Log message: Should just use xorps to clear XMM registers for all data types. pxor is also one byte longer. --- Diffs of the changes: (+10 -14) X86InstrSSE.td | 24 ++++++++++-------------- 1 files changed, 10 insertions(+), 14 deletions(-) Index: llvm/lib/Target/X86/X86InstrSSE.td diff -u llvm/lib/Target/X86/X86InstrSSE.td:1.127 llvm/lib/Target/X86/X86InstrSSE.td:1.128 --- llvm/lib/Target/X86/X86InstrSSE.td:1.127 Wed Jun 28 19:34:23 2006 +++ llvm/lib/Target/X86/X86InstrSSE.td Thu Jun 29 13:04:54 2006 @@ -2109,15 +2109,9 @@ // Alias instructions that map zero vector to pxor / xorp* for sse. // FIXME: remove when we can teach regalloc that xor reg, reg is ok. -def V_SET0_PI : PDI<0xEF, MRMInitReg, (ops VR128:$dst), - "pxor $dst, $dst", - [(set VR128:$dst, (v2i64 immAllZerosV))]>; -def V_SET0_PS : PSI<0x57, MRMInitReg, (ops VR128:$dst), - "xorps $dst, $dst", - [(set VR128:$dst, (v4f32 immAllZerosV))]>; -def V_SET0_PD : PDI<0x57, MRMInitReg, (ops VR128:$dst), - "xorps $dst, $dst", - [(set VR128:$dst, (v2f64 immAllZerosV))]>; +def V_SET0 : PSI<0x57, MRMInitReg, (ops VR128:$dst), + "xorps $dst, $dst", + [(set VR128:$dst, (v4f32 immAllZerosV))]>; def V_SETALLONES : PDI<0x76, MRMInitReg, (ops VR128:$dst), "pcmpeqd $dst, $dst", @@ -2265,9 +2259,11 @@ def : Pat<(v2i64 (undef)), (IMPLICIT_DEF_VR128)>, Requires<[HasSSE2]>; // 128-bit vector all zero's. -def : Pat<(v16i8 immAllZerosV), (V_SET0_PI)>, Requires<[HasSSE2]>; -def : Pat<(v8i16 immAllZerosV), (V_SET0_PI)>, Requires<[HasSSE2]>; -def : Pat<(v4i32 immAllZerosV), (V_SET0_PI)>, Requires<[HasSSE2]>; +def : Pat<(v16i8 immAllZerosV), (V_SET0)>, Requires<[HasSSE2]>; +def : Pat<(v8i16 immAllZerosV), (V_SET0)>, Requires<[HasSSE2]>; +def : Pat<(v4i32 immAllZerosV), (V_SET0)>, Requires<[HasSSE2]>; +def : Pat<(v2i64 immAllZerosV), (V_SET0)>, Requires<[HasSSE2]>; +def : Pat<(v2f64 immAllZerosV), (V_SET0)>, Requires<[HasSSE2]>; // 128-bit vector all one's. def : Pat<(v16i8 immAllOnesV), (V_SETALLONES)>, Requires<[HasSSE2]>; @@ -2365,10 +2361,10 @@ // Zeroing a VR128 then do a MOVS{S|D} to the lower bits. def : Pat<(v2f64 (vector_shuffle immAllZerosV, (v2f64 (scalar_to_vector FR64:$src)), MOVL_shuffle_mask)), - (MOVLSD2PDrr (V_SET0_PD), FR64:$src)>, Requires<[HasSSE2]>; + (MOVLSD2PDrr (V_SET0), FR64:$src)>, Requires<[HasSSE2]>; def : Pat<(v4f32 (vector_shuffle immAllZerosV, (v4f32 (scalar_to_vector FR32:$src)), MOVL_shuffle_mask)), - (MOVLSS2PSrr (V_SET0_PS), FR32:$src)>, Requires<[HasSSE2]>; + (MOVLSS2PSrr (V_SET0), FR32:$src)>, Requires<[HasSSE2]>; } // Splat v2f64 / v2i64 _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits