Add a mention of the new `-Zllvm-time-trace` flag

2020-02-02 21:34:01 -05:00 · 2020-02-02 21:34:01 -05:00 · c1d96c73b8
parent a46f4c1f46
commit c1d96c73b8
1 changed files with 2 additions and 0 deletions
--- a/src/codegen/debugging.md
+++ b/src/codegen/debugging.md
@ -123,6 +123,8 @@ tutorial above):
 - The `-Ztime-llvm-passes` option measures the time of each LLVM pass
 - The `-Zverify-llvm-ir` option will verify the LLVM IR for correctness
 - The `-Zno-parallel-llvm` will disable parallel compilation of distinct compilation units
+- The `-Zllvm-time-trace` option will output a Chrome profiler compatible JSON file
+  which contains details and timings for LLVM passes.

 ### Filing LLVM bug reports