commit 7279f4b00d06238fa2faa378a526eae4704560c0
author Hal Finkel <hfinkel@anl.gov> Wed Mar 26 19:13:54 2014 +0000
committer Hal Finkel <hfinkel@anl.gov> Wed Mar 26 19:13:54 2014 +0000
tree 50c612451294aab97293732957f1ab11748fb4cf
parent 6fc2ec96b83925dc9cf87100aed179d7548792fe

[PowerPC] Use v2f64 <-> v2i64 VSX conversion instructions

llvm-svn: 204843

llvm/lib/Target/PowerPC/PPCISelLowering.cpp

diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index 0aa7677..e09725d 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -584,6 +584,11 @@
       setOperationAction(ISD::STORE, MVT::v2i64, Promote);
       AddPromotedToType (ISD::STORE, MVT::v2i64, MVT::v2f64);
 
+      setOperationAction(ISD::SINT_TO_FP, MVT::v2i64, Legal);
+      setOperationAction(ISD::UINT_TO_FP, MVT::v2i64, Legal);
+      setOperationAction(ISD::FP_TO_SINT, MVT::v2i64, Legal);
+      setOperationAction(ISD::FP_TO_UINT, MVT::v2i64, Legal);
+
       addRegisterClass(MVT::v2i64, &PPC::VSRCRegClass);
     }
   }

llvm/lib/Target/PowerPC/PPCInstrVSX.td

diff --git a/llvm/lib/Target/PowerPC/PPCInstrVSX.td b/llvm/lib/Target/PowerPC/PPCInstrVSX.td
index bc0d180..8410912 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrVSX.td
+++ b/llvm/lib/Target/PowerPC/PPCInstrVSX.td
@@ -512,13 +512,15 @@
                       "xvcvdpsp $XT, $XB", IIC_VecFP, []>;
   def XVCVDPSXDS : XX2Form<60, 472,
                       (outs vsrc:$XT), (ins vsrc:$XB),
-                      "xvcvdpsxds $XT, $XB", IIC_VecFP, []>;
+                      "xvcvdpsxds $XT, $XB", IIC_VecFP,
+                      [(set v2i64:$XT, (fp_to_sint v2f64:$XB))]>;
   def XVCVDPSXWS : XX2Form<60, 216,
                       (outs vsrc:$XT), (ins vsrc:$XB),
                       "xvcvdpsxws $XT, $XB", IIC_VecFP, []>;
   def XVCVDPUXDS : XX2Form<60, 456,
                       (outs vsrc:$XT), (ins vsrc:$XB),
-                      "xvcvdpuxds $XT, $XB", IIC_VecFP, []>;
+                      "xvcvdpuxds $XT, $XB", IIC_VecFP,
+                      [(set v2i64:$XT, (fp_to_uint v2f64:$XB))]>;
   def XVCVDPUXWS : XX2Form<60, 200,
                       (outs vsrc:$XT), (ins vsrc:$XB),
                       "xvcvdpuxws $XT, $XB", IIC_VecFP, []>;
@@ -540,7 +542,8 @@
                       "xvcvspuxws $XT, $XB", IIC_VecFP, []>;
   def XVCVSXDDP : XX2Form<60, 504,
                       (outs vsrc:$XT), (ins vsrc:$XB),
-                      "xvcvsxddp $XT, $XB", IIC_VecFP, []>;
+                      "xvcvsxddp $XT, $XB", IIC_VecFP,
+                      [(set v2f64:$XT, (sint_to_fp v2i64:$XB))]>;
   def XVCVSXDSP : XX2Form<60, 440,
                       (outs vsrc:$XT), (ins vsrc:$XB),
                       "xvcvsxdsp $XT, $XB", IIC_VecFP, []>;
@@ -552,7 +555,8 @@
                       "xvcvsxwsp $XT, $XB", IIC_VecFP, []>;
   def XVCVUXDDP : XX2Form<60, 488,
                       (outs vsrc:$XT), (ins vsrc:$XB),
-                      "xvcvuxddp $XT, $XB", IIC_VecFP, []>;
+                      "xvcvuxddp $XT, $XB", IIC_VecFP,
+                      [(set v2f64:$XT, (uint_to_fp v2i64:$XB))]>;
   def XVCVUXDSP : XX2Form<60, 424,
                       (outs vsrc:$XT), (ins vsrc:$XB),
                       "xvcvuxdsp $XT, $XB", IIC_VecFP, []>;