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_llvm/src/llvm/ffi.rs | 3 +++ 1 file changed, 3 insertions(+) (limited to 'compiler/rustc_codegen_llvm/src/llvm') diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index 605f0154773..3eb04555749 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -1870,6 +1870,9 @@ extern "C" { /// Print the pass timings since static dtors aren't picking them up. pub fn LLVMRustPrintPassTimings(); + /// Print the statistics since static dtors aren't picking them up. + pub fn LLVMRustPrintStatistics(); + pub fn LLVMStructCreateNamed(C: &Context, Name: *const c_char) -> &Type; pub fn LLVMStructSetBody<'a>( -- cgit 1.4.1-3-g733a5