During two-address lowering, rescheduling an instruction does not untie
operands. Make TryInstructionTransform return false to reflect this.
Fixes PR11861.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153892 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index 24b8bc2..789617b 100644
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -1248,7 +1248,7 @@
// re-schedule this MI below it.
if (RescheduleMIBelowKill(mbbi, mi, nmi, regB)) {
++NumReSchedDowns;
- return true;
+ return false;
}
if (TargetRegisterInfo::isVirtualRegister(regA))
@@ -1270,7 +1270,7 @@
// re-schedule it before this MI if it's legal.
if (RescheduleKillAboveMI(mbbi, mi, nmi, regB)) {
++NumReSchedUps;
- return true;
+ return false;
}
// If this is an instruction with a load folded into it, try unfolding