bjoernager/rust
bjoernager/rust
1
Fork 0
Code Issues Pull requests Activity

Emit LLVM optimization remarks when enabled with -Cremark

Browse source 
The default diagnostic handler considers all remarks to be disabled by
default unless configured otherwise through LLVM internal flags:
`-pass-remarks`, `-pass-remarks-missed`, and `-pass-remarks-analysis`.
This behaviour makes `-Cremark` ineffective on its own.

Fix this by configuring a custom diagnostic handler that enables
optimization remarks based on the value of `-Cremark` option. With
`-Cremark=all` enabling all remarks.
This commit is contained in:
Tomasz Miąsko 2021-11-12 00:00:00 +00:00
parent b16ac4cbba
commit 6846674c75
4 changed files with 158 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

31
compiler/rustc_codegen_llvm/src/llvm/ffi.rs
View file

@ -672,8 +672,12 @@ pub struct OperandBundleDef<'a>(InvariantOpaque<'a>);
#[repr(C)]
pub struct Linker<'a>(InvariantOpaque<'a>);
pub type DiagnosticHandler = unsafe extern "C" fn(&DiagnosticInfo, *mut c_void);
pub type InlineAsmDiagHandler = unsafe extern "C" fn(&SMDiagnostic, *const c_void, c_uint);
extern "C" {
pub type DiagnosticHandler;
}
pub type DiagnosticHandlerTy = unsafe extern "C" fn(&DiagnosticInfo, *mut c_void);
pub type InlineAsmDiagHandlerTy = unsafe extern "C" fn(&SMDiagnostic, *const c_void, c_uint);
pub mod coverageinfo {
use super::coverage_map;
@ -2286,12 +2290,6 @@ extern "C" {
#[allow(improper_ctypes)]
pub fn LLVMRustWriteTwineToString(T: &Twine, s: &RustString);
pub fn LLVMContextSetDiagnosticHandler(
C: &Context,
Handler: DiagnosticHandler,
DiagnosticContext: *mut c_void,
);
#[allow(improper_ctypes)]
pub fn LLVMRustUnpackOptimizationDiagnostic(
DI: &'a DiagnosticInfo,
@ -2321,7 +2319,7 @@ extern "C" {
pub fn LLVMRustSetInlineAsmDiagnosticHandler(
C: &Context,
H: InlineAsmDiagHandler,
H: InlineAsmDiagHandlerTy,
CX: *mut c_void,
);
@ -2436,4 +2434,19 @@ extern "C" {
mod_id: *const c_char,
data: &ThinLTOData,
);
pub fn LLVMRustContextGetDiagnosticHandler(Context: &Context) -> Option<&DiagnosticHandler>;
pub fn LLVMRustContextSetDiagnosticHandler(
context: &Context,
diagnostic_handler: Option<&DiagnosticHandler>,
);
pub fn LLVMRustContextConfigureDiagnosticHandler(
context: &Context,
diagnostic_handler_callback: DiagnosticHandlerTy,
diagnostic_handler_context: *mut c_void,
remark_all_passes: bool,
remark_passes: *const *const c_char,
remark_passes_len: usize,
);
}