Bitcasts between FP and INT values using direct moves

This patch corresponds to review:
http://reviews.llvm.org/D15286

This patch was meant to land in revision 255246, but I accidentally uploaded
the patch that corresponds to http://reviews.llvm.org/D15372 in that revision
accidentally.

Thereby, this patch is the actual Bitcasts using direct moves patch, whereas
http://reviews.llvm.org/rL255246 actually corresponds to
http://reviews.llvm.org/D15372.

llvm-svn: 255649

1 files changed, 6 insertions, 0 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCVSXCopy.cpp b/llvm/lib/Target/PowerPC/PPCVSXCopy.cpp
index 11ee305..782583c 100644
--- a/llvm/lib/Target/PowerPC/PPCVSXCopy.cpp
+++ b/llvm/lib/Target/PowerPC/PPCVSXCopy.cpp
@@ -81,6 +81,10 @@ namespace {
       return IsRegInClass(Reg, &PPC::VSFRCRegClass, MRI);
     }
 
+    bool IsVSSReg(unsigned Reg, MachineRegisterInfo &MRI) {
+      return IsRegInClass(Reg, &PPC::VSSRCRegClass, MRI);
+    }
+
 protected:
     bool processBlock(MachineBasicBlock &MBB) {
       bool Changed = false;
@@ -105,6 +109,7 @@ protected:
                                            &PPC::VSLRCRegClass;
           assert((IsF8Reg(SrcMO.getReg(), MRI) ||
                   IsVRReg(SrcMO.getReg(), MRI) ||
+                  IsVSSReg(SrcMO.getReg(), MRI) ||
                   IsVSFReg(SrcMO.getReg(), MRI)) &&
                  "Unknown source for a VSX copy");
 
@@ -129,6 +134,7 @@ protected:
                                            &PPC::VSLRCRegClass;
           assert((IsF8Reg(DstMO.getReg(), MRI) ||
                   IsVSFReg(DstMO.getReg(), MRI) ||
+                  IsVSSReg(DstMO.getReg(), MRI) ||
                   IsVRReg(DstMO.getReg(), MRI)) &&
                  "Unknown destination for a VSX copy");