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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
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@ -253,7 +253,7 @@ void LiveRangeInfo::coalesceLRs()
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for each machine instruction (inst)
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for each machine instruction (inst)
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for each definition (def) in inst
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for each definition (def) in inst
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for each operand (op) of inst that is a use
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for each operand (op) of inst that is a use
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if the def and op are of the same register class
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if the def and op are of the same register type
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if the def and op do not interfere //i.e., not simultaneously live
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if the def and op do not interfere //i.e., not simultaneously live
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if (degree(LR of def) + degree(LR of op)) <= # avail regs
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if (degree(LR of def) + degree(LR of op)) <= # avail regs
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if both LRs do not have suggested colors
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if both LRs do not have suggested colors
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@ -312,9 +312,12 @@ void LiveRangeInfo::coalesceLRs()
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if( LROfUse == LROfDef) // nothing to merge if they are same
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if( LROfUse == LROfDef) // nothing to merge if they are same
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continue;
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continue;
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RegClass *const RCOfUse = LROfUse->getRegClass();
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//RegClass *const RCOfUse = LROfUse->getRegClass();
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//if( RCOfDef == RCOfUse ) { // if the reg classes are the same
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if( RCOfDef == RCOfUse ) { // if the reg classes are the same
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if( MRI.getRegType(LROfDef) == MRI.getRegType(LROfUse) ) {
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// If the two RegTypes are the same
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if( ! RCOfDef->getInterference(LROfDef, LROfUse) ) {
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if( ! RCOfDef->getInterference(LROfDef, LROfUse) ) {
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@ -253,7 +253,7 @@ void LiveRangeInfo::coalesceLRs()
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for each machine instruction (inst)
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for each machine instruction (inst)
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for each definition (def) in inst
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for each definition (def) in inst
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for each operand (op) of inst that is a use
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for each operand (op) of inst that is a use
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if the def and op are of the same register class
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if the def and op are of the same register type
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if the def and op do not interfere //i.e., not simultaneously live
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if the def and op do not interfere //i.e., not simultaneously live
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if (degree(LR of def) + degree(LR of op)) <= # avail regs
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if (degree(LR of def) + degree(LR of op)) <= # avail regs
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if both LRs do not have suggested colors
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if both LRs do not have suggested colors
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@ -312,9 +312,12 @@ void LiveRangeInfo::coalesceLRs()
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if( LROfUse == LROfDef) // nothing to merge if they are same
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if( LROfUse == LROfDef) // nothing to merge if they are same
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continue;
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continue;
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RegClass *const RCOfUse = LROfUse->getRegClass();
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//RegClass *const RCOfUse = LROfUse->getRegClass();
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//if( RCOfDef == RCOfUse ) { // if the reg classes are the same
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if( RCOfDef == RCOfUse ) { // if the reg classes are the same
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if( MRI.getRegType(LROfDef) == MRI.getRegType(LROfUse) ) {
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// If the two RegTypes are the same
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if( ! RCOfDef->getInterference(LROfDef, LROfUse) ) {
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if( ! RCOfDef->getInterference(LROfDef, LROfUse) ) {
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