FreeChainXenon/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

doc: Note that some warnings depend on optimizations (PR 92757)

Browse source 
PR driver/92757
	* doc/invoke.texi (Warning Options): Add caveat about some warnings
	depending on optimization settings.
This commit is contained in:
Jonathan Wakely 2019-12-02 21:32:54 +00:00
parent eb7c7c5245
commit aef85e40e0
2 changed files with 11 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2020-01-13 Jonathan Wakely <jwakely@redhat.com>
PR driver/92757
* doc/invoke.texi (Warning Options): Add caveat about some warnings
depending on optimization settings.
2020-01-13 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/90838

5
gcc/doc/invoke.texi
View file

@ -4575,6 +4575,11 @@ are being produced. This allows the use of new @option{-Wno-} options
with old compilers, but if something goes wrong, the compiler
warns that an unrecognized option is present.
The effectiveness of some warnings depends on optimizations also being
enabled. For example @option{-Wsuggest-final-types} is more effective
with link-time optimization and @option{-Wmaybe-uninitialized} will not
warn at all unless optimization is enabled.
@table @gcctabopt
@item -Wpedantic
@itemx -pedantic