On 12/5/19 1:30 PM, Richard Biener wrote:
I wonder if the behavior shouldn't be the default? The only thing we lose
is failing to notice really cold calls (error paths) in programs?
I would also consider enabling that by default.
I'm sending a language correction for the option documentation:
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 26a444ac7b2..130529dece1 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -10637,10 +10637,10 @@ This option is enabled by @option{-fauto-profile}.
@item -fprofile-partial-training
@opindex fprofile-use
With @code{-fprofile-use} all portions of programs not executed during train
-run are optimized agressively for size rather than speed. In some cases it is
not
+run are optimized aggressively for size rather than speed. In some cases it
is not
practical to train all possible paths hot paths in the program. (For example
-program may contain functions specific for a given hardware and trianing may
-not cover all hardware configurations program is run on.) With
+a program may contain functions specific for a given hardware and training may
+not cover all hardware configurations program can run on). With
@code{-fprofile-partial-training} profile feedback will be ignored for all
functions not executed during the train run leading them to be optimized as
if they were compiled without profile feedback.
Martin
