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path: root/src/compiler/codegen/RallocUtil.cc
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Diffstat (limited to 'src/compiler/codegen/RallocUtil.cc')
-rw-r--r--src/compiler/codegen/RallocUtil.cc43
1 files changed, 29 insertions, 14 deletions
diff --git a/src/compiler/codegen/RallocUtil.cc b/src/compiler/codegen/RallocUtil.cc
index 9d1878a02b..8fa110a90d 100644
--- a/src/compiler/codegen/RallocUtil.cc
+++ b/src/compiler/codegen/RallocUtil.cc
@@ -161,6 +161,20 @@ int SRegToPMap(CompilationUnit* cUnit, int sReg)
}
}
+void oatRecordCorePromotion(CompilationUnit* cUnit, int reg, int sReg)
+{
+ int pMapIdx = SRegToPMap(cUnit, sReg);
+ int vReg = SRegToVReg(cUnit, sReg);
+ oatGetRegInfo(cUnit, reg)->inUse = true;
+ cUnit->coreSpillMask |= (1 << reg);
+ // Include reg for later sort
+ cUnit->coreVmapTable.push_back(reg << VREG_NUM_WIDTH |
+ (vReg & ((1 << VREG_NUM_WIDTH) - 1)));
+ cUnit->numCoreSpills++;
+ cUnit->promotionMap[pMapIdx].coreLocation = kLocPhysReg;
+ cUnit->promotionMap[pMapIdx].coreReg = reg;
+}
+
/* Reserve a callee-save register. Return -1 if none available */
extern int oatAllocPreservedCoreReg(CompilationUnit* cUnit, int sReg)
{
@@ -168,21 +182,24 @@ extern int oatAllocPreservedCoreReg(CompilationUnit* cUnit, int sReg)
RegisterInfo* coreRegs = cUnit->regPool->coreRegs;
for (int i = 0; i < cUnit->regPool->numCoreRegs; i++) {
if (!coreRegs[i].isTemp && !coreRegs[i].inUse) {
- int vReg = SRegToVReg(cUnit, sReg);
- int pMapIdx = SRegToPMap(cUnit, sReg);
res = coreRegs[i].reg;
- coreRegs[i].inUse = true;
- cUnit->coreSpillMask |= (1 << res);
- cUnit->coreVmapTable.push_back(vReg);
- cUnit->numCoreSpills++;
- cUnit->promotionMap[pMapIdx].coreLocation = kLocPhysReg;
- cUnit->promotionMap[pMapIdx].coreReg = res;
+ oatRecordCorePromotion(cUnit, res, sReg);
break;
}
}
return res;
}
+void oatRecordFpPromotion(CompilationUnit* cUnit, int reg, int sReg)
+{
+ int pMapIdx = SRegToPMap(cUnit, sReg);
+ int vReg = SRegToVReg(cUnit, sReg);
+ oatGetRegInfo(cUnit, reg)->inUse = true;
+ oatMarkPreservedSingle(cUnit, vReg, reg);
+ cUnit->promotionMap[pMapIdx].fpLocation = kLocPhysReg;
+ cUnit->promotionMap[pMapIdx].fpReg = reg;
+}
+
/*
* Reserve a callee-save fp single register. Try to fullfill request for
* even/odd allocation, but go ahead and allocate anything if not
@@ -195,13 +212,8 @@ int allocPreservedSingle(CompilationUnit* cUnit, int sReg, bool even)
for (int i = 0; i < cUnit->regPool->numFPRegs; i++) {
if (!FPRegs[i].isTemp && !FPRegs[i].inUse &&
((FPRegs[i].reg & 0x1) == 0) == even) {
- int vReg = SRegToVReg(cUnit, sReg);
- int pMapIdx = SRegToPMap(cUnit, sReg);
res = FPRegs[i].reg;
- FPRegs[i].inUse = true;
- oatMarkPreservedSingle(cUnit, vReg, res);
- cUnit->promotionMap[pMapIdx].fpLocation = kLocPhysReg;
- cUnit->promotionMap[pMapIdx].fpReg = res;
+ oatRecordFpPromotion(cUnit, res, sReg);
break;
}
}
@@ -1237,6 +1249,9 @@ extern void oatDoPromotion(CompilationUnit* cUnit)
}
}
}
+ if (cUnit->printMe) {
+ oatDumpPromotionMap(cUnit);
+ }
}
/* Returns sp-relative offset in bytes for a VReg */