Use uint16_t to store register overlaps to reduce static data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152001 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocBasic.cpp b/lib/CodeGen/RegAllocBasic.cpp
index 2e79c79..f39a21c 100644
--- a/lib/CodeGen/RegAllocBasic.cpp
+++ b/lib/CodeGen/RegAllocBasic.cpp
@@ -204,7 +204,7 @@
// either the union or live intervals.
unsigned NumInterferences = 0;
// Collect interferences assigned to any alias of the physical register.
- for (const unsigned *asI = TRI->getOverlaps(PhysReg); *asI; ++asI) {
+ for (const uint16_t *asI = TRI->getOverlaps(PhysReg); *asI; ++asI) {
LiveIntervalUnion::Query &QAlias = query(VirtReg, *asI);
NumInterferences += QAlias.collectInterferingVRegs();
if (QAlias.seenUnspillableVReg()) {
@@ -216,7 +216,7 @@
assert(NumInterferences > 0 && "expect interference");
// Spill each interfering vreg allocated to PhysReg or an alias.
- for (const unsigned *AliasI = TRI->getOverlaps(PhysReg); *AliasI; ++AliasI)
+ for (const uint16_t *AliasI = TRI->getOverlaps(PhysReg); *AliasI; ++AliasI)
spillReg(VirtReg, *AliasI, SplitVRegs);
return true;
}