<rdar://problem/6234798> Assertion failed: (!OpInfo.AssignedRegs.Regs.empty() && "Couldn't allocate input reg!")
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56597 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index 1365d68..ac4a639 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -4940,8 +4940,11 @@
"Don't know how to handle indirect register inputs yet!");
// Copy the input into the appropriate registers.
- assert(!OpInfo.AssignedRegs.Regs.empty() &&
- "Couldn't allocate input reg!");
+ if (OpInfo.AssignedRegs.Regs.empty()) {
+ cerr << "Couldn't allocate output reg for constraint '"
+ << OpInfo.ConstraintCode << "'!\n";
+ exit(1);
+ }
OpInfo.AssignedRegs.getCopyToRegs(InOperandVal, DAG, Chain, &Flag);