bjoernager/rust
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rustc_codegen_ssa: use more consistent naming.

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Ensure:
- builders always have a `bx` suffix;
- backend basic blocks always have an `llbb` suffix,
- paired builders and basic blocks have consistent prefixes.
This commit is contained in:
Nicholas Nethercote 2022-10-19 10:34:45 +11:00
parent 7fcf850d79
commit 4e4092f8cc
2 changed files with 31 additions and 30 deletions
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20
compiler/rustc_codegen_ssa/src/mir/mod.rs
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@ -148,10 +148,10 @@ pub fn codegen_mir<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
let debug_context = cx.create_function_debug_context(instance, &fn_abi, llfn, &mir);
let start_llbb = Bx::append_block(cx, llfn, "start");
let mut bx = Bx::build(cx, start_llbb);
let mut start_bx = Bx::build(cx, start_llbb);
if mir.basic_blocks.iter().any(|bb| bb.is_cleanup) {
bx.set_personality_fn(cx.eh_personality());
start_bx.set_personality_fn(cx.eh_personality());
}
let cleanup_kinds = analyze::cleanup_kinds(&mir);
@ -180,7 +180,7 @@ pub fn codegen_mir<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
caller_location: None,
};
fx.per_local_var_debug_info = fx.compute_per_local_var_debug_info(&mut bx);
fx.per_local_var_debug_info = fx.compute_per_local_var_debug_info(&mut start_bx);
// Evaluate all required consts; codegen later assumes that CTFE will never fail.
let mut all_consts_ok = true;
@ -206,29 +206,29 @@ pub fn codegen_mir<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
// Allocate variable and temp allocas
fx.locals = {
let args = arg_local_refs(&mut bx, &mut fx, &memory_locals);
let args = arg_local_refs(&mut start_bx, &mut fx, &memory_locals);
let mut allocate_local = |local| {
let decl = &mir.local_decls[local];
let layout = bx.layout_of(fx.monomorphize(decl.ty));
let layout = start_bx.layout_of(fx.monomorphize(decl.ty));
assert!(!layout.ty.has_erasable_regions());
if local == mir::RETURN_PLACE && fx.fn_abi.ret.is_indirect() {
debug!("alloc: {:?} (return place) -> place", local);
let llretptr = bx.get_param(0);
let llretptr = start_bx.get_param(0);
return LocalRef::Place(PlaceRef::new_sized(llretptr, layout));
}
if memory_locals.contains(local) {
debug!("alloc: {:?} -> place", local);
if layout.is_unsized() {
LocalRef::UnsizedPlace(PlaceRef::alloca_unsized_indirect(&mut bx, layout))
LocalRef::UnsizedPlace(PlaceRef::alloca_unsized_indirect(&mut start_bx, layout))
} else {
LocalRef::Place(PlaceRef::alloca(&mut bx, layout))
LocalRef::Place(PlaceRef::alloca(&mut start_bx, layout))
}
} else {
debug!("alloc: {:?} -> operand", local);
LocalRef::new_operand(&mut bx, layout)
LocalRef::new_operand(&mut start_bx, layout)
}
};
@ -240,7 +240,7 @@ pub fn codegen_mir<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
};
// Apply debuginfo to the newly allocated locals.
fx.debug_introduce_locals(&mut bx);
fx.debug_introduce_locals(&mut start_bx);
// Codegen the body of each block using reverse postorder
for (bb, _) in traversal::reverse_postorder(&mir) {