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Evaluate unevaluated MIR constants in codegen_mir

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Santiago Pastorino 2020-04-05 10:30:32 -03:00
parent f8976e377f
commit db18b42343
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1 changed files with 14 additions and 0 deletions
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14
src/librustc_codegen_ssa/mir/mod.rs
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@ -1,6 +1,8 @@
use crate::base;
use crate::traits::*;
use rustc_errors::ErrorReported;
use rustc_middle::mir;
use rustc_middle::mir::interpret::ErrorHandled;
use rustc_middle::ty::layout::{FnAbiExt, HasTyCtxt, TyAndLayout};
use rustc_middle::ty::{self, Instance, Ty, TypeFoldable};
use rustc_target::abi::call::{FnAbi, PassMode};
@ -189,6 +191,18 @@ pub fn codegen_mir<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
fx.per_local_var_debug_info = fx.compute_per_local_var_debug_info();
for const_ in &mir.uneval_consts {
if let Err(err) = fx.eval_mir_constant(const_) {
match err {
// errored or at least linted
ErrorHandled::Reported(ErrorReported) | ErrorHandled::Linted => {}
ErrorHandled::TooGeneric => {
span_bug!(const_.span, "codgen encountered polymorphic constant: {:?}", err)
}
}
}
}
let memory_locals = analyze::non_ssa_locals(&fx);
// Allocate variable and temp allocas