Output LLVM optimization remark kind in `-Cremark` output

compiler/rustc_codegen_llvm/messages.ftl

@@ -82,7 +82,7 @@ codegen_llvm_prepare_thin_lto_module_with_llvm_err = failed to prepare thin LTO
 codegen_llvm_parse_bitcode = failed to parse bitcode for LTO module
 codegen_llvm_parse_bitcode_with_llvm_err = failed to parse bitcode for LTO module: {$llvm_err}
 
-codegen_llvm_from_llvm_optimization_diag = {$filename}:{$line}:{$column} {$pass_name}: {$message}
+codegen_llvm_from_llvm_optimization_diag = {$filename}:{$line}:{$column} {$pass_name} ({$kind}): {$message}
 codegen_llvm_from_llvm_diag = {$message}
 
 codegen_llvm_write_bytecode = failed to write bytecode to {$path}: {$err}

compiler/rustc_codegen_llvm/src/back/write.rs

@@ -31,6 +31,7 @@ use rustc_span::symbol::sym;
 use rustc_span::InnerSpan;
 use rustc_target::spec::{CodeModel, RelocModel, SanitizerSet, SplitDebuginfo};
 
+use crate::llvm::diagnostic::OptimizationDiagnosticKind;
 use libc::{c_char, c_int, c_uint, c_void, size_t};
 use std::ffi::CString;
 use std::fs;
@@ -363,6 +364,15 @@ unsafe extern "C" fn diagnostic_handler(info: &DiagnosticInfo, user: *mut c_void
                     line: opt.line,
                     column: opt.column,
                     pass_name: &opt.pass_name,
+                    kind: match opt.kind {
+                        OptimizationDiagnosticKind::OptimizationRemark => "success",
+                        OptimizationDiagnosticKind::OptimizationMissed
+                        | OptimizationDiagnosticKind::OptimizationFailure => "missed",
+                        OptimizationDiagnosticKind::OptimizationAnalysis
+                        | OptimizationDiagnosticKind::OptimizationAnalysisFPCommute
+                        | OptimizationDiagnosticKind::OptimizationAnalysisAliasing => "analysis",
+                        OptimizationDiagnosticKind::OptimizationRemarkOther => "other",
+                    },
                     message: &opt.message,
                 });
             }

compiler/rustc_codegen_llvm/src/errors.rs

@@ -195,6 +195,7 @@ pub(crate) struct FromLlvmOptimizationDiag<'a> {
     pub line: std::ffi::c_uint,
     pub column: std::ffi::c_uint,
     pub pass_name: &'a str,
+    pub kind: &'a str,
     pub message: &'a str,
 }
 

tests/ui/optimization-remark.rs

@@ -13,7 +13,7 @@
 // [merge1] compile-flags: -Cremark=all    -Cremark=giraffe
 // [merge2] compile-flags: -Cremark=inline -Cremark=giraffe
 //
-// error-pattern: inline: 'f' not inlined into 'g'
+// error-pattern: inline (missed): 'f' not inlined into 'g'
 // dont-check-compiler-stderr
 
 #[no_mangle]