Changes in directory llvm/lib/Target/X86:
X86InstrSSE.td updated: 1.7 -> 1.8
---
Log message:
Vector undef's
---
Diffs of the changes: (+21 -0)
X86InstrSSE.td | 21 +++++++++++++++++++++
1 files changed, 21 insertions(+)
Index: llvm/lib/Target/X86/X86InstrSSE.td
diff -u llvm/lib/Target/X86/X86InstrSSE.td:1.7
llvm/lib/Target/X86/X86InstrSSE.td:1.8
--- llvm/lib/Target/X86/X86InstrSSE.td:1.7 Fri Mar 17 19:23:20 2006
+++ llvm/lib/Target/X86/X86InstrSSE.td Sun Mar 19 03:38:54 2006
@@ -341,6 +341,14 @@
// 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, $src}", []>;
@@ -686,6 +694,19 @@
// SSE integer instructions
//===----------------------------------------------------------------------===//
+// Some 'special' instructions
+def IMPLICIT_DEF_VR64 : I<0, Pseudo, (ops VR64:$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}", []>;
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