If the tied registers are already the same, there is no need to change
them. Move the code to make that change inside the conditional.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80630 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index 738b3c9..d8871f9 100644
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -985,13 +985,13 @@
mi->getOperand(i).getReg() == regB)
mi->getOperand(i).setReg(regA);
}
+
+ assert(mi->getOperand(ti).isDef() && mi->getOperand(si).isUse());
+ mi->getOperand(ti).setReg(mi->getOperand(si).getReg());
+ MadeChange = true;
+
+ DEBUG(errs() << "\t\trewrite to:\t" << *mi);
}
-
- assert(mi->getOperand(ti).isDef() && mi->getOperand(si).isUse());
- mi->getOperand(ti).setReg(mi->getOperand(si).getReg());
- MadeChange = true;
-
- DEBUG(errs() << "\t\trewrite to:\t" << *mi);
}
mi = nmi;