Coalesing bug fix - now checks for the same regType instead of the same
regClass since FP class has two reg Types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1236 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAlloc/LiveRangeInfo.cpp b/lib/CodeGen/RegAlloc/LiveRangeInfo.cpp
index a4c3aab..c072275 100644
--- a/lib/CodeGen/RegAlloc/LiveRangeInfo.cpp
+++ b/lib/CodeGen/RegAlloc/LiveRangeInfo.cpp
@@ -253,7 +253,7 @@
for each machine instruction (inst)
for each definition (def) in inst
for each operand (op) of inst that is a use
- if the def and op are of the same register class
+ if the def and op are of the same register type
if the def and op do not interfere //i.e., not simultaneously live
if (degree(LR of def) + degree(LR of op)) <= # avail regs
if both LRs do not have suggested colors
@@ -312,9 +312,12 @@
if( LROfUse == LROfDef) // nothing to merge if they are same
continue;
- RegClass *const RCOfUse = LROfUse->getRegClass();
+ //RegClass *const RCOfUse = LROfUse->getRegClass();
+ //if( RCOfDef == RCOfUse ) { // if the reg classes are the same
- if( RCOfDef == RCOfUse ) { // if the reg classes are the same
+ if( MRI.getRegType(LROfDef) == MRI.getRegType(LROfUse) ) {
+
+ // If the two RegTypes are the same
if( ! RCOfDef->getInterference(LROfDef, LROfUse) ) {