diff options
| -rw-r--r-- | lib/CodeGen/RegisterScavenging.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp index 07cf027691..16c5898e16 100644 --- a/lib/CodeGen/RegisterScavenging.cpp +++ b/lib/CodeGen/RegisterScavenging.cpp @@ -205,7 +205,12 @@ void RegScavenger::forward() { SubUsed = true; break; } - assert(SubUsed && "Using an undefined register!"); +#ifndef NDEBUG + if (!SubUsed) { + MBB->getParent()->verify(NULL, "In Register Scavenger"); + llvm_unreachable("Using an undefined register!"); + } +#endif (void)SubUsed; } assert((!EarlyClobberRegs.test(Reg) || MI->isRegTiedToDefOperand(i)) && |