[PATCH] D95271: [CSSPGO] Passing the clang driver switch -fpseudo-probe-for-profiling to the linker.

Hongtao Yu via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Mon Feb 1 23:25:25 PST 2021


hoy added inline comments.


================
Comment at: clang/lib/Driver/ToolChains/CommonArgs.cpp:609-610
+  // Pass an option to enable pseudo probe emission.
+  if (Args.hasFlag(options::OPT_fpseudo_probe_for_profiling,
+                   options::OPT_fno_pseudo_probe_for_profiling))
+    CmdArgs.push_back("-plugin-opt=pseudo-probe-for-profiling");
----------------
wmi wrote:
> The third arg of Args.hasFlag defaults to true, which means -plugin-opt=pseudo-probe-for-profiling will be inserted even if no -fpseudo-probe-for-profiling or -fno-pseudo-probe-for-profiling is provided. Is it expected?
Good catch, it's not expected. Thanks!


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D95271/new/

https://reviews.llvm.org/D95271



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