[PATCH] D25435: Add -fdebug-info-for-profiling to emit more debug info for sample pgo profile collection
David Blaikie via cfe-commits
cfe-commits at lists.llvm.org
Mon Jan 9 11:59:11 PST 2017
I started the llvm-dev thread for the instruction location tradeoffs
(removing the location from instructions to improve profiling support -
possibly at the cost of other debug info consumers).
The motivation for this flag is different - for added functionality that's
generally (imho/based on conversations so far) pretty well justified for
profile needs (the need for function start lines to make profiles somewhat
resilient to unrelated code changes, etc - as mentioned in the review/patch
On Mon, Jan 9, 2017 at 11:51 AM Eric Christopher via Phabricator <
reviews at reviews.llvm.org> wrote:
> echristo added a comment.
> I don't think this ever was hashed out in the llvm-dev thread?
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