Fix a compile-time regression introduced by my heuristic-changing patch. I forgot
to multiply the instruction count by a constant factor in a few places, which
caused the register allocator to require many more iterations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53959 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index 4df172d..ad830b2 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/lib/CodeGen/RegAllocLinearScan.cpp
@@ -852,7 +852,7 @@
// All registers must have inf weight. Just grab one!
minReg = BestPhysReg ? BestPhysReg : *RC->allocation_order_begin(*mf_);
if (cur->weight == HUGE_VALF ||
- li_->getApproximateInstructionCount(*cur) == 1)
+ li_->getApproximateInstructionCount(*cur) == 0)
// Spill a physical register around defs and uses.
li_->spillPhysRegAroundRegDefsUses(*cur, minReg, *vrm_);
}