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| author | Wesley Wiser <wwiser@gmail.com> | 2020-02-02 21:34:01 -0500 |
|---|---|---|
| committer | Who? Me?! <mark-i-m@users.noreply.github.com> | 2020-02-02 23:54:00 -0600 |
| commit | bd287110fadd706fca3f1bd4216474b2f697ee65 (patch) | |
| tree | d7a6cf70376ecb5ef69865f87688350f5eed7ed7 /src/doc/rustc-dev-guide | |
| parent | 7935d37e3663e3c48e9d638e962482be2825c185 (diff) | |
| download | rust-bd287110fadd706fca3f1bd4216474b2f697ee65.tar.gz rust-bd287110fadd706fca3f1bd4216474b2f697ee65.zip | |
Add a mention of the new `-Zllvm-time-trace` flag
Diffstat (limited to 'src/doc/rustc-dev-guide')
| -rw-r--r-- | src/doc/rustc-dev-guide/src/codegen/debugging.md | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/doc/rustc-dev-guide/src/codegen/debugging.md b/src/doc/rustc-dev-guide/src/codegen/debugging.md index 4eab306068c..0da29bfb9e6 100644 --- a/src/doc/rustc-dev-guide/src/codegen/debugging.md +++ b/src/doc/rustc-dev-guide/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 |