diff options
Diffstat (limited to 'lib/CodeGen/RegAllocLinearScan.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocLinearScan.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp index 000dd41..df9d393 100644 --- a/lib/CodeGen/RegAllocLinearScan.cpp +++ b/lib/CodeGen/RegAllocLinearScan.cpp @@ -855,9 +855,12 @@ void RALinScan::assignRegOrStackSlotAtInterval(LiveInterval* cur) // 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) == 0) + li_->getApproximateInstructionCount(*cur) == 0) { // Spill a physical register around defs and uses. li_->spillPhysRegAroundRegDefsUses(*cur, minReg, *vrm_); + assignRegOrStackSlotAtInterval(cur); + return; + } } // Find up to 3 registers to consider as spill candidates. |