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A probably-working register allocator.

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This commit is contained in:
Ben Vanik
2014-02-10 21:16:38 -08:00
parent 6bd214af0b
commit 4a584129d2
13 changed files with 613 additions and 29 deletions
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22
src/alloy/frontend/ppc/ppc_translator.cc
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@@ -46,7 +46,7 @@ PPCTranslator::PPCTranslator(PPCFrontend* frontend) :
// Passes are executed in the order they are added. Multiple of the same
// pass type may be used.
if (validate) compiler_->AddPass(new passes::ValidationPass());
//compiler_->AddPass(new passes::ContextPromotionPass());
compiler_->AddPass(new passes::ContextPromotionPass());
if (validate) compiler_->AddPass(new passes::ValidationPass());
compiler_->AddPass(new passes::SimplificationPass());
if (validate) compiler_->AddPass(new passes::ValidationPass());
@@ -59,18 +59,16 @@ PPCTranslator::PPCTranslator(PPCFrontend* frontend) :
compiler_->AddPass(new passes::DeadCodeEliminationPass());
if (validate) compiler_->AddPass(new passes::ValidationPass());
// Adds local load/stores.
compiler_->AddPass(new passes::DataFlowAnalysisPass());
if (validate) compiler_->AddPass(new passes::ValidationPass());
compiler_->AddPass(new passes::SimplificationPass());
if (validate) compiler_->AddPass(new passes::ValidationPass());
//// Removes all unneeded variables. Try not to add new ones after this.
//compiler_->AddPass(new passes::ValueReductionPass());
//if (validate) compiler_->AddPass(new passes::ValidationPass());
// Run DCE one more time to cleanup any local manipulation.
compiler_->AddPass(new passes::DeadCodeEliminationPass());
if (validate) compiler_->AddPass(new passes::ValidationPass());
// Removes all unneeded variables. Try not to add new ones after this.
compiler_->AddPass(new passes::ValueReductionPass());
// Register allocation for the target backend.
// Will modify the HIR to add loads/stores.
// This should be the last pass before finalization, as after this all
// registers are assigned and ready to be emitted.
compiler_->AddPass(new passes::RegisterAllocationPass(
backend->machine_info()));
if (validate) compiler_->AddPass(new passes::ValidationPass());
// Must come last. The HIR is not really HIR after this.