[llvm-commits] [llvm] r164746 - /llvm/trunk/lib/Target/Mips/MipsDSPInstrInfo.td

[Akira Hatanaka]

Author: ahatanak
Date: Wed Sep 26 20:56:38 2012
New Revision: 164746

URL: http://llvm.org/viewvc/llvm-project?rev=164746&view=rev
Log:
MIPS DSP: add bitcast patterns between vectors and int.

No test cases. These patterns will get tested along with dsp intrinsics.

Modified:
    llvm/trunk/lib/Target/Mips/MipsDSPInstrInfo.td

Modified: llvm/trunk/lib/Target/Mips/MipsDSPInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsDSPInstrInfo.td?rev=164746&r1=164745&r2=164746&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MipsDSPInstrInfo.td (original)
+++ llvm/trunk/lib/Target/Mips/MipsDSPInstrInfo.td Wed Sep 26 20:56:38 2012
@@ -23,6 +23,16 @@
 class DSPPat<dag pattern, dag result, Predicate pred = HasDSP> :
   Pat<pattern, result>, Requires<[pred]>;
 
+class BitconvertPat<ValueType DstVT, ValueType SrcVT, RegisterClass DstRC,
+                    RegisterClass SrcRC> :
+   DSPPat<(DstVT (bitconvert (SrcVT SrcRC:$src))),
+          (COPY_TO_REGCLASS SrcRC:$src, DstRC)>;
+
+def : BitconvertPat<i32, v2i16, CPURegs, DSPRegs>;
+def : BitconvertPat<i32, v4i8, CPURegs, DSPRegs>;
+def : BitconvertPat<v2i16, i32, DSPRegs, CPURegs>;
+def : BitconvertPat<v4i8, i32, DSPRegs, CPURegs>;
+
 def : DSPPat<(v2i16 (load addr:$a)),
              (v2i16 (COPY_TO_REGCLASS (LW addr:$a), DSPRegs))>;
 def : DSPPat<(v4i8 (load addr:$a)),