diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-02-16 20:46:17 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-02-16 20:46:17 +0000 |
| commit | 7675e96845d3a8356435759287ae1b4885d22eb4 (patch) | |
| tree | 6293882a904a29a02ec3e42b8a4e35989c6479db /gcc/doc | |
| parent | b2d052b7e00d478b2a6f0ad60010ed0a53ea5839 (diff) | |
| download | gcc-7675e96845d3a8356435759287ae1b4885d22eb4.tar.gz | |
PR c/69835
* common.opt (Wnonnull-compare): New warning.
* doc/invoke.texi (-Wnonnull): Remove text about comparison
of arguments against NULL.
(-Wnonnull-compare): Document.
* Makefile.in (OBJS): Add gimple-ssa-nonnull-compare.o.
* tree-pass.h (make_pass_warn_nonnull_compare): Declare.
* passes.def (pass_warn_nonnull_compare): Add.
* gimple-ssa-nonnull-compare.c: New file.
c-family/
* c.opt (Wnonnull-compare): Enable for -Wall.
c/
* c-typeck.c (build_binary_op): Revert 2015-09-09 change.
cp/
* typeck.c (cp_build_binary_op): Revert 2015-09-09 change.
testsuite/
* c-c++-common/nonnull-1.c: Use -Wnonnull-compare instead of
-Wnonnull in dg-options.
* c-c++-common/nonnull-2.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233472 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 85f222117af..2bd793d13b3 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -276,7 +276,8 @@ Objective-C and Objective-C++ Dialects}. -Wmain -Wmaybe-uninitialized -Wmemset-transposed-args @gol -Wmisleading-indentation -Wmissing-braces @gol -Wmissing-field-initializers -Wmissing-include-dirs @gol --Wno-multichar -Wnonnull -Wnormalized=@r{[}none@r{|}id@r{|}nfc@r{|}nfkc@r{]} @gol +-Wno-multichar -Wnonnull -Wnonnull-compare @gol +-Wnormalized=@r{[}none@r{|}id@r{|}nfc@r{|}nfkc@r{]} @gol -Wnull-dereference -Wodr -Wno-overflow -Wopenmp-simd @gol -Woverride-init-side-effects -Woverlength-strings @gol -Wpacked -Wpacked-bitfield-compat -Wpadded @gol @@ -3537,6 +3538,7 @@ Options} and @ref{Objective-C and Objective-C++ Dialect Options}. -Wmissing-braces @r{(only for C/ObjC)} @gol -Wnarrowing @r{(only for C++)} @gol -Wnonnull @gol +-Wnonnull-compare @gol -Wopenmp-simd @gol -Wparentheses @gol -Wpointer-sign @gol @@ -3795,12 +3797,18 @@ formats that may yield only a two-digit year. Warn about passing a null pointer for arguments marked as requiring a non-null value by the @code{nonnull} function attribute. -Also warns when comparing an argument marked with the @code{nonnull} -function attribute against null inside the function. - @option{-Wnonnull} is included in @option{-Wall} and @option{-Wformat}. It can be disabled with the @option{-Wno-nonnull} option. +@item -Wnonnull-compare +@opindex Wnonnull-compare +@opindex Wno-nonnull-compare +Warn when comparing an argument marked with the @code{nonnull} +function attribute against null inside the function. + +@option{-Wnonnull-compare} is included in @option{-Wall}. It +can be disabled with the @option{-Wno-nonnull-compare} option. + @item -Wnull-dereference @opindex Wnull-dereference @opindex Wno-null-dereference |