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spirt_passes/diagnostics: also recover zombie Spans from their own attrs.

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Eduard-Mihai Burtescu 2023-06-01 18:35:09 +03:00 committed by Eduard-Mihai Burtescu
parent 0557036fb1
commit 7d99248b29
1 changed files with 39 additions and 28 deletions
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67
crates/rustc_codegen_spirv/src/linker/spirt_passes/diagnostics.rs
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@ -199,41 +199,45 @@ enum IntraFuncUseOrigin {
Other,
}
impl SpanRegenerator<'_> {
fn spirt_attrs_to_rustc_span(&mut self, cx: &Context, attrs: AttrSet) -> Option<Span> {
let attrs_def = &cx[attrs];
attrs_def
.attrs
.iter()
.find_map(|attr| match attr {
&Attr::SpvDebugLine {
file_path,
line,
col,
} => self.src_loc_to_rustc(SrcLocDecoration {
file_name: &cx[file_path.0],
line_start: line,
line_end: line,
col_start: col,
col_end: col,
}),
_ => None,
})
.or_else(|| {
self.src_loc_to_rustc(
try_decode_custom_decoration::<SrcLocDecoration<'_>>(attrs_def)?.decode(),
)
})
}
}
impl UseOrigin<'_> {
fn to_rustc_span(&self, cx: &Context, span_regen: &mut SpanRegenerator<'_>) -> Option<Span> {
let from_attrs = |attrs: AttrSet, span_regen: &mut SpanRegenerator<'_>| {
let attrs_def = &cx[attrs];
attrs_def
.attrs
.iter()
.find_map(|attr| match attr {
&Attr::SpvDebugLine {
file_path,
line,
col,
} => span_regen.src_loc_to_rustc(SrcLocDecoration {
file_name: &cx[file_path.0],
line_start: line,
line_end: line,
col_start: col,
col_end: col,
}),
_ => None,
})
.or_else(|| {
span_regen.src_loc_to_rustc(
try_decode_custom_decoration::<SrcLocDecoration<'_>>(attrs_def)?.decode(),
)
})
};
match *self {
Self::Global { attrs, .. } => from_attrs(attrs, span_regen),
Self::Global { attrs, .. } => span_regen.spirt_attrs_to_rustc_span(cx, attrs),
Self::IntraFunc {
func_attrs,
last_debug_src_loc_inst,
inst_attrs,
..
} => from_attrs(inst_attrs, span_regen)
} => span_regen
.spirt_attrs_to_rustc_span(cx, inst_attrs)
.or_else(|| {
let debug_inst_def = last_debug_src_loc_inst?;
@ -291,7 +295,7 @@ impl UseOrigin<'_> {
col_end: const_u32(col_end),
})
})
.or_else(|| from_attrs(func_attrs, span_regen)),
.or_else(|| span_regen.spirt_attrs_to_rustc_span(cx, func_attrs)),
}
}
@ -392,6 +396,13 @@ impl DiagnosticReporter<'_> {
let ZombieDecoration { reason } = zombie.decode();
let def_span = current_def
.and_then(|def| def.to_rustc_span(self.cx, &mut self.span_regen))
.or_else(|| {
// If there's no clear source for the span, try to get
// it from the same attrs as the zombie, which could
// be missing from `use_stack` in some edge cases
// (such as zombied function parameters).
self.span_regen.spirt_attrs_to_rustc_span(self.cx, attrs)
})
.unwrap_or(DUMMY_SP);
let mut err = self.sess.struct_span_err(def_span, reason);
for use_origin in use_stack_for_def.iter().rev() {