bjoernager/rust
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Bump all mir_opt_level 3 to 4

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Santiago Pastorino 2021-03-03 18:30:42 -03:00
parent fde8d6ee81
commit f3b8920d4b
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GPG key ID: 8131A24E0C79EFAF
5 changed files with 7 additions and 7 deletions
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2
compiler/rustc_mir/src/transform/const_goto.rs
View file

@ -28,7 +28,7 @@ pub struct ConstGoto;
impl<'tcx> MirPass<'tcx> for ConstGoto {
fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
if tcx.sess.mir_opt_level() < 3 {
if tcx.sess.mir_opt_level() < 4 {
return;
}
trace!("Running ConstGoto on {:?}", body.source);

4
compiler/rustc_mir/src/transform/const_prop.rs
View file

@ -725,7 +725,7 @@ impl<'mir, 'tcx> ConstPropagator<'mir, 'tcx> {
return None;
}
if self.tcx.sess.mir_opt_level() >= 3 {
if self.tcx.sess.mir_opt_level() >= 4 {
self.eval_rvalue_with_identities(rvalue, place)
} else {
self.use_ecx(|this| this.ecx.eval_rvalue_into_place(rvalue, place))
@ -1253,7 +1253,7 @@ impl<'mir, 'tcx> MutVisitor<'tcx> for ConstPropagator<'mir, 'tcx> {
TerminatorKind::SwitchInt { ref mut discr, .. } => {
// FIXME: This is currently redundant with `visit_operand`, but sadly
// always visiting operands currently causes a perf regression in LLVM codegen, so
// `visit_operand` currently only runs for propagates places for `mir_opt_level=3`.
// `visit_operand` currently only runs for propagates places for `mir_opt_level=4`.
self.propagate_operand(discr)
}
// None of these have Operands to const-propagate.

2
compiler/rustc_mir/src/transform/deduplicate_blocks.rs
View file

@ -16,7 +16,7 @@ pub struct DeduplicateBlocks;
impl<'tcx> MirPass<'tcx> for DeduplicateBlocks {
fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
if tcx.sess.mir_opt_level() < 3 {
if tcx.sess.mir_opt_level() < 4 {
return;
}
debug!("Running DeduplicateBlocks on `{:?}`", body.source);

2
compiler/rustc_mir/src/transform/multiple_return_terminators.rs
View file

@ -10,7 +10,7 @@ pub struct MultipleReturnTerminators;
impl<'tcx> MirPass<'tcx> for MultipleReturnTerminators {
fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
if tcx.sess.mir_opt_level() < 3 {
if tcx.sess.mir_opt_level() < 4 {
return;
}

4
compiler/rustc_mir/src/transform/unreachable_prop.rs
View file

@ -12,8 +12,8 @@ pub struct UnreachablePropagation;
impl MirPass<'_> for UnreachablePropagation {
fn run_pass<'tcx>(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
if tcx.sess.mir_opt_level() < 3 {
// Enable only under -Zmir-opt-level=3 as in some cases (check the deeply-nested-opt
if tcx.sess.mir_opt_level() < 4 {
// Enable only under -Zmir-opt-level=4 as in some cases (check the deeply-nested-opt
// perf benchmark) LLVM may spend quite a lot of time optimizing the generated code.
return;
}