From 2d47816cbaebb3b8f400b11fa122feae00fd5c58 Mon Sep 17 00:00:00 2001 From: Patrick Walton Date: Sat, 5 Nov 2022 01:08:57 -0700 Subject: rustc_llvm: Add a `-Z print-llvm-stats` option to expose LLVM statistics. LLVM has a neat [statistics] feature that tracks how often optimizations kick in. It's very handy for optimization work. Since we expose the LLVM pass timings, I thought it made sense to expose the LLVM statistics too. [statistics]: https://llvm.org/docs/ProgrammersManual.html#the-statistic-class-stats-option --- compiler/rustc_codegen_gcc/src/lib.rs | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'compiler/rustc_codegen_gcc') diff --git a/compiler/rustc_codegen_gcc/src/lib.rs b/compiler/rustc_codegen_gcc/src/lib.rs index 2a6b642782d..04ac0254a81 100644 --- a/compiler/rustc_codegen_gcc/src/lib.rs +++ b/compiler/rustc_codegen_gcc/src/lib.rs @@ -239,6 +239,10 @@ impl WriteBackendMethods for GccCodegenBackend { unimplemented!(); } + fn print_statistics(&self) { + unimplemented!() + } + unsafe fn optimize(_cgcx: &CodegenContext, _diag_handler: &Handler, module: &ModuleCodegen, config: &ModuleConfig) -> Result<(), FatalError> { module.module_llvm.context.set_optimization_level(to_gcc_opt_level(config.opt_level)); Ok(()) -- cgit 1.4.1-3-g733a5