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Move SimplifyLocals before ConstProp.

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This commit is contained in:
Camille GILLOT 2022-12-04 19:20:55 +00:00
parent 22e9e52c84
commit 028b4745f4
43 changed files with 348 additions and 436 deletions
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3
compiler/rustc_mir_transform/src/lib.rs
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@ -560,6 +560,7 @@ fn run_optimization_passes<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
&multiple_return_terminators::MultipleReturnTerminators,
&instcombine::InstCombine,
&separate_const_switch::SeparateConstSwitch,
&simplify::SimplifyLocals::new("before-const-prop"),
//
// FIXME(#70073): This pass is responsible for both optimization as well as some lints.
&const_prop::ConstProp,
@ -578,7 +579,7 @@ fn run_optimization_passes<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
&o1(remove_noop_landing_pads::RemoveNoopLandingPads),
&o1(simplify::SimplifyCfg::new("final")),
&nrvo::RenameReturnPlace,
&simplify::SimplifyLocals,
&simplify::SimplifyLocals::new("final"),
&multiple_return_terminators::MultipleReturnTerminators,
&deduplicate_blocks::DeduplicateBlocks,
// Some cleanup necessary at least for LLVM and potentially other codegen backends.