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authorPatrick Walton <pcwalton@fb.com>2022-11-05 01:08:57 -0700
committerkhei4 <kk.asano.luxy@gmail.com>2023-07-16 22:56:04 +0900
commit2d47816cbaebb3b8f400b11fa122feae00fd5c58 (patch)
tree790c456908b74596d709a0e5fb40dc812d72fd96 /compiler/rustc_interface/src
parent55be59d2cefe33529a07b0e011384658c9240035 (diff)
downloadrust-2d47816cbaebb3b8f400b11fa122feae00fd5c58.tar.gz
rust-2d47816cbaebb3b8f400b11fa122feae00fd5c58.zip
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
Diffstat (limited to 'compiler/rustc_interface/src')
-rw-r--r--compiler/rustc_interface/src/tests.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs
index 09141afd137..0eac098e8a3 100644
--- a/compiler/rustc_interface/src/tests.rs
+++ b/compiler/rustc_interface/src/tests.rs
@@ -715,6 +715,7 @@ fn test_unstable_options_tracking_hash() {
     // `pre_link_arg` is omitted because it just forwards to `pre_link_args`.
     untracked!(pre_link_args, vec![String::from("abc"), String::from("def")]);
     untracked!(print_llvm_passes, true);
+    untracked!(print_llvm_stats, true);
     untracked!(print_mono_items, Some(String::from("abc")));
     untracked!(print_type_sizes, true);
     untracked!(proc_macro_backtrace, true);