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-rw-r--r--llvm/lib/CodeGen/TargetRegisterInfo.cpp7
1 files changed, 5 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/TargetRegisterInfo.cpp b/llvm/lib/CodeGen/TargetRegisterInfo.cpp
index 721761eef61..f4e5583cbe7 100644
--- a/llvm/lib/CodeGen/TargetRegisterInfo.cpp
+++ b/llvm/lib/CodeGen/TargetRegisterInfo.cpp
@@ -94,11 +94,14 @@ Printable printReg(unsigned Reg, const TargetRegisterInfo *TRI,
OS << "SS#" << TargetRegisterInfo::stackSlot2Index(Reg);
else if (TargetRegisterInfo::isVirtualRegister(Reg))
OS << '%' << TargetRegisterInfo::virtReg2Index(Reg);
- else if (TRI && Reg < TRI->getNumRegs()) {
+ else if (!TRI)
+ OS << '%' << "physreg" << Reg;
+ else if (Reg < TRI->getNumRegs()) {
OS << '%';
printLowerCase(TRI->getName(Reg), OS);
} else
- OS << "%physreg" << Reg;
+ llvm_unreachable("Register kind is unsupported.");
+
if (SubIdx) {
if (TRI)
OS << ':' << TRI->getSubRegIndexName(SubIdx);
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