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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41
compiler/rustc_codegen_ssa/src/mir/block.rs
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@ -95,10 +95,10 @@ impl<'a, 'tcx> TerminatorCodegenHelper<'tcx> {
debug!("llblock: creating cleanup trampoline for {:?}", target);
let name = &format!("{:?}_cleanup_trampoline_{:?}", self.bb, target);
let trampoline = Bx::append_block(fx.cx, fx.llfn, name);
let mut trampoline_bx = Bx::build(fx.cx, trampoline);
let trampoline_llbb = Bx::append_block(fx.cx, fx.llfn, name);
let mut trampoline_bx = Bx::build(fx.cx, trampoline_llbb);
trampoline_bx.cleanup_ret(self.funclet(fx).unwrap(), Some(lltarget));
trampoline
trampoline_llbb
} else {
lltarget
}
@ -1459,20 +1459,20 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
// bar();
// }
Some(&mir::TerminatorKind::Abort) => {
let cs_bb =
let cs_llbb =
Bx::append_block(self.cx, self.llfn, &format!("cs_funclet{:?}", bb));
let cp_bb =
let cp_llbb =
Bx::append_block(self.cx, self.llfn, &format!("cp_funclet{:?}", bb));
ret_llbb = cs_bb;
ret_llbb = cs_llbb;
let mut cs_bx = Bx::build(self.cx, cs_bb);
let cs = cs_bx.catch_switch(None, None, &[cp_bb]);
let mut cs_bx = Bx::build(self.cx, cs_llbb);
let cs = cs_bx.catch_switch(None, None, &[cp_llbb]);
// The "null" here is actually a RTTI type descriptor for the
// C++ personality function, but `catch (...)` has no type so
// it's null. The 64 here is actually a bitfield which
// represents that this is a catch-all block.
let mut cp_bx = Bx::build(self.cx, cp_bb);
let mut cp_bx = Bx::build(self.cx, cp_llbb);
let null = cp_bx.const_null(
cp_bx.type_i8p_ext(cp_bx.cx().data_layout().instruction_address_space),
);
@ -1481,10 +1481,10 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
cp_bx.br(llbb);
}
_ => {
let cleanup_bb =
let cleanup_llbb =
Bx::append_block(self.cx, self.llfn, &format!("funclet_{:?}", bb));
ret_llbb = cleanup_bb;
let mut cleanup_bx = Bx::build(self.cx, cleanup_bb);
ret_llbb = cleanup_llbb;
let mut cleanup_bx = Bx::build(self.cx, cleanup_llbb);
funclet = cleanup_bx.cleanup_pad(None, &[]);
cleanup_bx.br(llbb);
}
@ -1492,19 +1492,20 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
self.funclets[bb] = Some(funclet);
ret_llbb
} else {
let bb = Bx::append_block(self.cx, self.llfn, "cleanup");
let mut bx = Bx::build(self.cx, bb);
let cleanup_llbb = Bx::append_block(self.cx, self.llfn, "cleanup");
let mut cleanup_bx = Bx::build(self.cx, cleanup_llbb);
let llpersonality = self.cx.eh_personality();
let llretty = self.landing_pad_type();
let lp = bx.cleanup_landing_pad(llretty, llpersonality);
let lp = cleanup_bx.cleanup_landing_pad(llretty, llpersonality);
let slot = self.get_personality_slot(&mut bx);
slot.storage_live(&mut bx);
Pair(bx.extract_value(lp, 0), bx.extract_value(lp, 1)).store(&mut bx, slot);
let slot = self.get_personality_slot(&mut cleanup_bx);
slot.storage_live(&mut cleanup_bx);
Pair(cleanup_bx.extract_value(lp, 0), cleanup_bx.extract_value(lp, 1))
.store(&mut cleanup_bx, slot);
bx.br(llbb);
bx.llbb()
cleanup_bx.br(llbb);
cleanup_llbb
}
}