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|
//! LLVM diagnostic reports.
pub use self::Diagnostic::*;
pub use self::OptimizationDiagnosticKind::*;
use crate::value::Value;
use libc::c_uint;
use super::{DiagnosticInfo, SMDiagnostic};
use rustc_span::InnerSpan;
#[derive(Copy, Clone, Debug)]
pub enum OptimizationDiagnosticKind {
OptimizationRemark,
OptimizationMissed,
OptimizationAnalysis,
OptimizationAnalysisFPCommute,
OptimizationAnalysisAliasing,
OptimizationFailure,
OptimizationRemarkOther,
}
pub struct OptimizationDiagnostic<'ll> {
pub kind: OptimizationDiagnosticKind,
pub pass_name: String,
pub function: &'ll Value,
pub line: c_uint,
pub column: c_uint,
pub filename: String,
pub message: String,
}
impl<'ll> OptimizationDiagnostic<'ll> {
unsafe fn unpack(kind: OptimizationDiagnosticKind, di: &'ll DiagnosticInfo) -> Self {
let mut function = None;
let mut line = 0;
let mut column = 0;
let mut message = None;
let mut filename = None;
let pass_name = super::build_string(|pass_name| {
message = super::build_string(|message| {
filename = super::build_string(|filename| {
super::LLVMRustUnpackOptimizationDiagnostic(
di,
pass_name,
&mut function,
&mut line,
&mut column,
filename,
message,
)
})
.ok()
})
.ok()
})
.ok();
let mut filename = filename.unwrap_or_default();
if filename.is_empty() {
filename.push_str("<unknown file>");
}
OptimizationDiagnostic {
kind,
pass_name: pass_name.expect("got a non-UTF8 pass name from LLVM"),
function: function.unwrap(),
line,
column,
filename,
message: message.expect("got a non-UTF8 OptimizationDiagnostic message from LLVM"),
}
}
}
pub struct SrcMgrDiagnostic {
pub level: super::DiagnosticLevel,
pub message: String,
pub source: Option<(String, Vec<InnerSpan>)>,
}
impl SrcMgrDiagnostic {
pub unsafe fn unpack(diag: &SMDiagnostic) -> SrcMgrDiagnostic {
// Recover the post-substitution assembly code from LLVM for better
// diagnostics.
let mut have_source = false;
let mut buffer = String::new();
let mut level = super::DiagnosticLevel::Error;
let mut loc = 0;
let mut ranges = [0; 8];
let mut num_ranges = ranges.len() / 2;
let message = super::build_string(|message| {
buffer = super::build_string(|buffer| {
have_source = super::LLVMRustUnpackSMDiagnostic(
diag,
message,
buffer,
&mut level,
&mut loc,
ranges.as_mut_ptr(),
&mut num_ranges,
);
})
.expect("non-UTF8 inline asm");
})
.expect("non-UTF8 SMDiagnostic");
SrcMgrDiagnostic {
message,
level,
source: have_source.then(|| {
let mut spans = vec![InnerSpan::new(loc as usize, loc as usize)];
for i in 0..num_ranges {
spans.push(InnerSpan::new(ranges[i * 2] as usize, ranges[i * 2 + 1] as usize));
}
(buffer, spans)
}),
}
}
}
#[derive(Clone)]
pub struct InlineAsmDiagnostic {
pub level: super::DiagnosticLevel,
pub cookie: c_uint,
pub message: String,
pub source: Option<(String, Vec<InnerSpan>)>,
}
impl InlineAsmDiagnostic {
unsafe fn unpackInlineAsm(di: &DiagnosticInfo) -> Self {
let mut cookie = 0;
let mut message = None;
let mut level = super::DiagnosticLevel::Error;
super::LLVMRustUnpackInlineAsmDiagnostic(di, &mut level, &mut cookie, &mut message);
InlineAsmDiagnostic {
level,
cookie,
message: super::twine_to_string(message.unwrap()),
source: None,
}
}
unsafe fn unpackSrcMgr(di: &DiagnosticInfo) -> Self {
let mut cookie = 0;
let smdiag = SrcMgrDiagnostic::unpack(super::LLVMRustGetSMDiagnostic(di, &mut cookie));
InlineAsmDiagnostic {
level: smdiag.level,
cookie,
message: smdiag.message,
source: smdiag.source,
}
}
}
pub enum Diagnostic<'ll> {
Optimization(OptimizationDiagnostic<'ll>),
InlineAsm(InlineAsmDiagnostic),
PGO(&'ll DiagnosticInfo),
Linker(&'ll DiagnosticInfo),
Unsupported(&'ll DiagnosticInfo),
/// LLVM has other types that we do not wrap here.
UnknownDiagnostic(&'ll DiagnosticInfo),
}
impl<'ll> Diagnostic<'ll> {
pub unsafe fn unpack(di: &'ll DiagnosticInfo) -> Self {
use super::DiagnosticKind as Dk;
let kind = super::LLVMRustGetDiagInfoKind(di);
match kind {
Dk::InlineAsm => InlineAsm(InlineAsmDiagnostic::unpackInlineAsm(di)),
Dk::OptimizationRemark => {
Optimization(OptimizationDiagnostic::unpack(OptimizationRemark, di))
}
Dk::OptimizationRemarkOther => {
Optimization(OptimizationDiagnostic::unpack(OptimizationRemarkOther, di))
}
Dk::OptimizationRemarkMissed => {
Optimization(OptimizationDiagnostic::unpack(OptimizationMissed, di))
}
Dk::OptimizationRemarkAnalysis => {
Optimization(OptimizationDiagnostic::unpack(OptimizationAnalysis, di))
}
Dk::OptimizationRemarkAnalysisFPCommute => {
Optimization(OptimizationDiagnostic::unpack(OptimizationAnalysisFPCommute, di))
}
Dk::OptimizationRemarkAnalysisAliasing => {
Optimization(OptimizationDiagnostic::unpack(OptimizationAnalysisAliasing, di))
}
Dk::OptimizationFailure => {
Optimization(OptimizationDiagnostic::unpack(OptimizationFailure, di))
}
Dk::PGOProfile => PGO(di),
Dk::Linker => Linker(di),
Dk::Unsupported => Unsupported(di),
Dk::SrcMgr => InlineAsm(InlineAsmDiagnostic::unpackSrcMgr(di)),
_ => UnknownDiagnostic(di),
}
}
}
|