diff mbox series

[COMMITTED] Document negative forms of -Wtsan and -Wxor-used-as-pow [PR110847]

Message ID 20240118023424.1593073-1-sandra@codesourcery.com
State Committed
Commit 9a5e8f9d112adb0fdd0931f72a023cd77c09dd8c
Headers
Series [COMMITTED] Document negative forms of -Wtsan and -Wxor-used-as-pow [PR110847] |

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Context Check Description
linaro-tcwg-bot/tcwg_gcc_build--master-arm success Testing passed
linaro-tcwg-bot/tcwg_gcc_check--master-arm warning Patch is already merged
linaro-tcwg-bot/tcwg_gcc_build--master-aarch64 warning Patch is already merged

Commit Message

Sandra Loosemore Jan. 18, 2024, 2:34 a.m. UTC 
  These warnings are enabled by default, thus the manual should document the
-no form instead of the positive form.

gcc/ChangeLog
	PR middle-end/110847
	* doc/invoke.texi (Option Summary): Document negative forms of
	-Wtsan and -Wxor-used-as-pow.
	(Warning Options): Likewise.
---
 gcc/doc/invoke.texi | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)
diff mbox series

Patch

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index a537be66736..4d43dda9839 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -410,7 +410,7 @@  Objective-C and Objective-C++ Dialects}.
 -Wswitch  -Wno-switch-bool  -Wswitch-default  -Wswitch-enum
 -Wno-switch-outside-range  -Wno-switch-unreachable  -Wsync-nand
 -Wsystem-headers  -Wtautological-compare  -Wtrampolines  -Wtrigraphs
--Wtrivial-auto-var-init -Wtsan -Wtype-limits  -Wundef
+-Wtrivial-auto-var-init  -Wno-tsan  -Wtype-limits  -Wundef
 -Wuninitialized  -Wunknown-pragmas
 -Wunsuffixed-float-constants  -Wunused
 -Wunused-but-set-parameter  -Wunused-but-set-variable
@@ -424,7 +424,7 @@  Objective-C and Objective-C++ Dialects}.
 -Wvector-operation-performance
 -Wvla  -Wvla-larger-than=@var{byte-size}  -Wno-vla-larger-than
 -Wvolatile-register-var  -Wwrite-strings
--Wxor-used-as-pow
+-Wno-xor-used-as-pow
 -Wzero-length-bounds}
 
 @item Static Analyzer Options
@@ -9090,14 +9090,13 @@  This warning is enabled by default.
 
 @opindex Wtsan
 @opindex Wno-tsan
-@item -Wtsan
-Warn about unsupported features in ThreadSanitizer.
+@item -Wno-tsan
+
+Disable warnings about unsupported features in ThreadSanitizer.
 
 ThreadSanitizer does not support @code{std::atomic_thread_fence} and
 can report false positives.
 
-This warning is enabled by default.
-
 @opindex Wtype-limits
 @opindex Wno-type-limits
 @item -Wtype-limits
@@ -10434,17 +10433,18 @@  and/or writes to register variables.  This warning is enabled by
 
 @opindex Wxor-used-as-pow
 @opindex Wno-xor-used-as-pow
-@item -Wxor-used-as-pow @r{(C, C++, Objective-C and Objective-C++ only)}
-Warn about uses of @code{^}, the exclusive or operator, where it appears
-the user meant exponentiation.  Specifically, the warning occurs when the
+@item -Wno-xor-used-as-pow @r{(C, C++, Objective-C and Objective-C++ only)}
+Disable warnings about uses of @code{^}, the exclusive or operator,
+where it appears the code meant exponentiation.
+Specifically, the warning occurs when the
 left-hand side is the decimal constant 2 or 10 and the right-hand side
 is also a decimal constant.
 
 In C and C++, @code{^} means exclusive or, whereas in some other languages
 (e.g. TeX and some versions of BASIC) it means exponentiation.
 
-This warning is enabled by default.  It can be silenced by converting one
-of the operands to hexadecimal.
+This warning can be silenced by converting one of the operands to
+hexadecimal as well as by compiling with @option{-Wno-xor-used-as-pow}.
 
 @opindex Wdisabled-optimization
 @opindex Wno-disabled-optimization