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Fix register allocator with STORE_LOCAL. May indicate redundant stores.

This commit is contained in:
Ben Vanik 2014-08-05 11:48:45 -07:00
parent 2854841753
commit 810c256f21
1 changed files with 5 additions and 3 deletions
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8
src/alloy/compiler/passes/register_allocation_pass.cc
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@ -112,9 +112,11 @@ int RegisterAllocationPass::Run(HIRBuilder* builder) {
if (!instr->src1_use->next) { if (!instr->src1_use->next) {
// Pull off preferred register. We will try to reuse this for the // Pull off preferred register. We will try to reuse this for the
// dest. // dest.
has_preferred_reg = true; // NOTE: set may be null if this is a store local.
preferred_reg = instr->src1.value->reg; if (preferred_reg.set) {
assert_not_null(preferred_reg.set); has_preferred_reg = true;
preferred_reg = instr->src1.value->reg;
}
} }
} }