Add -Wuse-after-free [PR80532].

[thirdparty/gcc.git] / gcc / common.opt

diff --git a/gcc/common.opt b/gcc/common.opt
index 445a53a265ca4bc3910691a7387cd79f6306ce1e..c3f6472be049f467d5cccd03db4301ce04ac9fc7 100644 (file)
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -1,6 +1,6 @@
 ; Options for the language- and target-independent parts of the compiler.
 
-; Copyright (C) 2003-2021 Free Software Foundation, Inc.
+; Copyright (C) 2003-2022 Free Software Foundation, Inc.
 ;
 ; This file is part of GCC.
 ;
@@ -483,6 +483,10 @@ Og
 Common Optimization
 Optimize for debugging experience rather than speed or size.
 
+Oz
+Common Optimization
+Optimize for space aggressively rather than speed.
+
 Q
 Driver
 
@@ -548,6 +552,14 @@ Warray-bounds=
 Common Joined RejectNegative UInteger Var(warn_array_bounds) Warning IntegerRange(0, 2)
 Warn if an array is accessed out of bounds.
 
+Wuse-after-free
+Common Var(warn_use_after_free) Warning
+Warn for uses of pointers to deallocated strorage.
+
+Wuse-after-free=
+Common Joined RejectNegative UInteger Var(warn_use_after_free) Warning IntegerRange(0, 3)
+Warn for uses of pointers to deallocated strorage.
+
 Wattributes
 Common Var(warn_attributes) Init(1) Warning
 Warn about inappropriate attribute usage.
@@ -990,6 +1002,10 @@ Driver Undocumented
 ;     Adds missing 'on' in mangling of operator names in some cases.
 ;     Default in G++ 11.
 ;
+; 17: Fixes layout of classes that inherit from aggregate classes with default
+;     member initializers in C++14 and up.
+;     Default in G++ 12.
+;
 ; Additional positive integers will be assigned as new versions of
 ; the ABI become the default version of the ABI.
 fabi-version=
@@ -1945,6 +1961,10 @@ fira-algorithm=
 Common Joined RejectNegative Enum(ira_algorithm) Var(flag_ira_algorithm) Init(IRA_ALGORITHM_CB) Optimization
 -fira-algorithm=[CB|priority]  Set the used IRA algorithm.
 
+fipa-strict-aliasing
+Common Var(flag_ipa_strict_aliasing) Init(1) Optimization
+Assume strict aliasing rules apply across (uninlined) function boundaries.
+
 Enum
 Name(ira_algorithm) Type(enum ira_algorithm) UnknownError(unknown IRA algorithm %qs)
 
@@ -3034,6 +3054,10 @@ fuse-ld=lld
 Common Driver Negative(fuse-ld=lld)
 Use the lld LLVM linker instead of the default linker.
 
+fuse-ld=mold
+Common Driver Negative(fuse-ld=mold)
+Use the Modern linker (MOLD) linker instead of the default linker.
+
 fuse-linker-plugin
 Common Undocumented Var(flag_use_linker_plugin)