Use the dwarf->llvm mapping to print register names in the cfi
directives.
Fixes PR9826.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132317 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCFrameLowering.cpp b/lib/Target/PowerPC/PPCFrameLowering.cpp
index 9d8ef5f..375e000 100644
--- a/lib/Target/PowerPC/PPCFrameLowering.cpp
+++ b/lib/Target/PowerPC/PPCFrameLowering.cpp
@@ -487,6 +487,14 @@
int Offset = MFI->getObjectOffset(CSI[I].getFrameIdx());
unsigned Reg = CSI[I].getReg();
if (Reg == PPC::LR || Reg == PPC::LR8 || Reg == PPC::RM) continue;
+
+ // This is a bit of a hack: CR2LT, CR2GT, CR2EQ and CR2UN are just
+ // subregisters of CR2. We just need to emit a move of CR2.
+ if (Reg == PPC::CR2LT || Reg == PPC::CR2GT || Reg == PPC::CR2EQ)
+ continue;
+ if (Reg == PPC::CR2UN)
+ Reg = PPC::CR2;
+
MachineLocation CSDst(MachineLocation::VirtualFP, Offset);
MachineLocation CSSrc(Reg);
Moves.push_back(MachineMove(Label, CSDst, CSSrc));