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Perform instsimplify before inline to eliminate some trivial calls

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DianQK 2024-07-27 14:36:17 +08:00
parent 80d8270d84
commit ae681c940d
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83 changed files with 226 additions and 182 deletions
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18
compiler/rustc_mir_transform/src/instsimplify.rs
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@ -13,9 +13,25 @@ use rustc_target::spec::abi::Abi;
use crate::simplify::simplify_duplicate_switch_targets;
use crate::take_array;
pub struct InstSimplify;
pub enum InstSimplify {
BeforeInline,
AfterSimplifyCfg,
}
impl InstSimplify {
pub fn name(&self) -> &'static str {
match self {
InstSimplify::BeforeInline => "InstSimplify-before-inline",
InstSimplify::AfterSimplifyCfg => "InstSimplify-after-simplifycfg",
}
}
}
impl<'tcx> MirPass<'tcx> for InstSimplify {
fn name(&self) -> &'static str {
self.name()
}
fn is_enabled(&self, sess: &rustc_session::Session) -> bool {
sess.mir_opt_level() > 0
}