Fix PR43464: copyprop should maintain loop close phi nodes with multiple arguments.

[pf3gnuchains/gcc-fork.git] / gcc / c.opt

diff --git a/gcc/c.opt b/gcc/c.opt
index 3f1cd13..01d6428 100644 (file)
--- a/gcc/c.opt
+++ b/gcc/c.opt
@@ -1,5 +1,5 @@
 ; Options for the C, ObjC, C++ and ObjC++ front ends.
 ; Options for the C, ObjC, C++ and ObjC++ front ends.

-; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009
+; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

 ; Free Software Foundation, Inc.
 ;
 ; This file is part of GCC.
 ; Free Software Foundation, Inc.
 ;
 ; This file is part of GCC.


@@ -113,11 +113,11 @@ C ObjC C++ ObjC++ Joined Separate
 -U<macro>      Undefine <macro>
 
 Wabi
 -U<macro>      Undefine <macro>
 
 Wabi

-C ObjC C++ ObjC++ Var(warn_abi) Warning
+C ObjC C++ ObjC++ LTO Var(warn_abi) Warning

 Warn about things that will change when compiling with an ABI-compliant compiler
 
 Wpsabi
 Warn about things that will change when compiling with an ABI-compliant compiler
 
 Wpsabi

-C ObjC C++ ObjC++ Var(warn_psabi) Init(1) Undocumented
+C ObjC C++ ObjC++ LTO Var(warn_psabi) Init(1) Undocumented

 
 Waddress
 C ObjC C++ ObjC++ Var(warn_address) Warning
 
 Waddress
 C ObjC C++ ObjC++ Var(warn_address) Warning


@@ -171,6 +171,10 @@ Wconversion
 C ObjC C++ ObjC++ Var(warn_conversion) Warning
 Warn for implicit type conversions that may change a value
 
 C ObjC C++ ObjC++ Var(warn_conversion) Warning
 Warn for implicit type conversions that may change a value
 

+Wconversion-null
+C++ ObjC++ Var(warn_conversion_null) Init(1) Warning
+Warn for converting NULL from/to a non-pointer type
+

 Wsign-conversion
 C ObjC C++ ObjC++ Var(warn_sign_conversion) Init(-1)
 Warn for implicit type conversions between signed and unsigned integers
 Wsign-conversion
 C ObjC C++ ObjC++ Var(warn_sign_conversion) Init(-1)
 Warn for implicit type conversions between signed and unsigned integers


@@ -204,7 +208,7 @@ C ObjC C++ ObjC++ Warning
 Warn about stray tokens after #elif and #endif
 
 Wenum-compare
 Warn about stray tokens after #elif and #endif
 
 Wenum-compare

-C++ ObjC++ Var(warn_enum_compare) Init(1) Warning
+C ObjC C++ ObjC++ Var(warn_enum_compare) Init(-1) Warning

 Warn about comparison of different enum types
 
 Werror
 Warn about comparison of different enum types
 
 Werror


@@ -259,21 +263,22 @@ C ObjC C++ ObjC++ Var(warn_init_self) Warning
 Warn about variables which are initialized to themselves
 
 Wimplicit
 Warn about variables which are initialized to themselves
 
 Wimplicit

-C ObjC C++ ObjC++ Warning
+C ObjC Var(warn_implicit) Init(-1) Warning
+Warn about implicit declarations

 
 Wimplicit-function-declaration
 C ObjC Var(warn_implicit_function_declaration) Init(-1) Warning
 Warn about implicit function declarations
 
 Wimplicit-int
 
 Wimplicit-function-declaration
 C ObjC Var(warn_implicit_function_declaration) Init(-1) Warning
 Warn about implicit function declarations
 
 Wimplicit-int

-C ObjC Var(warn_implicit_int) Warning
+C ObjC Var(warn_implicit_int) Init(-1) Warning

 Warn when a declaration does not specify a type
 
 Wimport
 C ObjC C++ ObjC++ Undocumented
 
 Wint-to-pointer-cast
 Warn when a declaration does not specify a type
 
 Wimport
 C ObjC C++ ObjC++ Undocumented
 
 Wint-to-pointer-cast

-C ObjC Var(warn_int_to_pointer_cast) Init(1) Warning
+C ObjC C++ ObjC++ Var(warn_int_to_pointer_cast) Init(1) Warning

 Warn when there is a cast to a pointer from an integer of a different size
 
 Winvalid-offsetof
 Warn when there is a cast to a pointer from an integer of a different size
 
 Winvalid-offsetof


@@ -284,8 +289,16 @@ Winvalid-pch
 C ObjC C++ ObjC++ Warning
 Warn about PCH files that are found but not used
 
 C ObjC C++ ObjC++ Warning
 Warn about PCH files that are found but not used
 

+Wjump-misses-init
+C ObjC Var(warn_jump_misses_init) Init(-1) Warning
+Warn when a jump misses a variable initialization
+
+Wlogical-op
+C ObjC C++ ObjC++ Var(warn_logical_op) Init(0) Warning 
+Warn when a logical operator is suspiciously always evaluating to true or false
+

 Wlong-long
 Wlong-long

-C ObjC C++ ObjC++ Var(warn_long_long) Init(1) Warning
+C ObjC C++ ObjC++ Var(warn_long_long) Init(-1) Warning

 Do not warn about using \"long long\" when -pedantic
 
 Wmain
 Do not warn about using \"long long\" when -pedantic
 
 Wmain


@@ -472,10 +485,18 @@ Wunknown-pragmas
 C ObjC C++ ObjC++ Warning
 Warn about unrecognized pragmas
 
 C ObjC C++ ObjC++ Warning
 Warn about unrecognized pragmas
 

+Wunsuffixed-float-constants
+C ObjC Var(warn_unsuffixed_float_constants) Warning
+Warn about unsuffixed float constants
+

 Wunused-macros
 C ObjC C++ ObjC++ Warning
 Warn about macros defined in the main file that are not used
 
 Wunused-macros
 C ObjC C++ ObjC++ Warning
 Warn about macros defined in the main file that are not used
 

+Wunused-result
+C ObjC C++ ObjC++ Var(warn_unused_result) Init(1) Warning
+Warn if a caller of a function, marked with attribute warn_unused_result, does not use its return value
+

 Wvariadic-macros
 C ObjC C++ ObjC++ Warning
 Do not warn about using variadic macros when -pedantic
 Wvariadic-macros
 C ObjC C++ ObjC++ Warning
 Do not warn about using variadic macros when -pedantic


@@ -542,6 +563,10 @@ fconstant-string-class=
 ObjC ObjC++ Joined
 -fconst-string-class=<name>    Use class <name> for constant strings
 
 ObjC ObjC++ Joined
 -fconst-string-class=<name>    Use class <name> for constant strings
 

+fdeduce-init-list
+C++ ObjC++ Var(flag_deduce_init_list) Init(1)
+-fno-deduce-init-list  disable deduction of std::initializer_list for a template type parameter from a brace-enclosed initializer-list
+

 fdefault-inline
 C++ ObjC++
 Inline member functions by default
 fdefault-inline
 C++ ObjC++
 Inline member functions by default


@@ -664,6 +689,10 @@ C++ ObjC++
 fnonnull-objects
 C++ ObjC++
 
 fnonnull-objects
 C++ ObjC++
 

+fnothrow-opt
+C++ ObjC++ Optimization Var(flag_nothrow_opt)
+Treat a throw() exception specification as noexcept to improve code size
+

 ; Generate special '- .cxx_construct' and '- .cxx_destruct' methods
 ; to initialize any non-POD ivars in Objective-C++ classes.
 fobjc-call-cxx-cdtors
 ; Generate special '- .cxx_construct' and '- .cxx_destruct' methods
 ; to initialize any non-POD ivars in Objective-C++ classes.
 fobjc-call-cxx-cdtors


@@ -749,7 +778,7 @@ C ObjC C++ ObjC++
 When \"signed\" or \"unsigned\" is not given make the bitfield signed
 
 fsigned-char
 When \"signed\" or \"unsigned\" is not given make the bitfield signed
 
 fsigned-char

-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ LTO

 Make \"char\" signed by default
 
 fsquangle
 Make \"char\" signed by default
 
 fsquangle


@@ -759,6 +788,10 @@ fstats
 C++ ObjC++
 Display statistics accumulated during compilation
 
 C++ ObjC++
 Display statistics accumulated during compilation
 

+fstrict-enums
+C++ ObjC++ Optimization Var(flag_strict_enums)
+Assume that values of enumeration type are always within the minimum range of that type
+

 fstrict-prototype
 C++ ObjC++
 
 fstrict-prototype
 C++ ObjC++
 


@@ -767,8 +800,11 @@ C ObjC C++ ObjC++ Joined RejectNegative UInteger
 -ftabstop=<number>     Distance between tab stops for column reporting
 
 ftemplate-depth-
 -ftabstop=<number>     Distance between tab stops for column reporting
 
 ftemplate-depth-

+C++ ObjC++ Joined RejectNegative UInteger Undocumented
+
+ftemplate-depth=

 C++ ObjC++ Joined RejectNegative UInteger
 C++ ObjC++ Joined RejectNegative UInteger

--ftemplate-depth-<number>      Specify maximum template instantiation depth
+-ftemplate-depth=<number>      Specify maximum template instantiation depth

 
 fthis-is-variable
 C++ ObjC++
 
 fthis-is-variable
 C++ ObjC++


@@ -782,7 +818,7 @@ C ObjC C++ ObjC++
 When \"signed\" or \"unsigned\" is not given make the bitfield unsigned
 
 funsigned-char
 When \"signed\" or \"unsigned\" is not given make the bitfield unsigned
 
 funsigned-char

-C ObjC C++ ObjC++
+C ObjC C++ ObjC++ LTO

 Make \"char\" unsigned by default
 
 fuse-cxa-atexit
 Make \"char\" unsigned by default
 
 fuse-cxa-atexit


@@ -855,7 +891,7 @@ C ObjC C++ ObjC++ Joined Separate
 
 imultilib
 C ObjC C++ ObjC++ Joined Separate
 
 imultilib
 C ObjC C++ ObjC++ Joined Separate

--imultilib <dir> Set <dir> to be the multilib include subdirectory
+-imultilib <dir>       Set <dir> to be the multilib include subdirectory

 
 include
 C ObjC C++ ObjC++ Joined Separate
 
 include
 C ObjC C++ ObjC++ Joined Separate


@@ -934,10 +970,18 @@ become a part of the upcoming ISO C++ standard, dubbed C++0x. Note that the
 extensions enabled by this mode are experimental and may be removed in
 future releases of GCC.
 
 extensions enabled by this mode are experimental and may be removed in
 future releases of GCC.
 

+std=c1x
+C ObjC
+Conform to the ISO 201X C standard draft (experimental and incomplete support)
+

 std=c89
 C ObjC
 Conform to the ISO 1990 C standard
 
 std=c89
 C ObjC
 Conform to the ISO 1990 C standard
 

+std=c90
+C ObjC
+Conform to the ISO 1990 C standard
+

 std=c99
 C ObjC
 Conform to the ISO 1999 C standard
 std=c99
 C ObjC
 Conform to the ISO 1999 C standard


@@ -957,10 +1001,18 @@ extensions that are likely to become a part of the upcoming ISO C++
 standard, dubbed C++0x. Note that the extensions enabled by this mode
 are experimental and may be removed in future releases of GCC.
 
 standard, dubbed C++0x. Note that the extensions enabled by this mode
 are experimental and may be removed in future releases of GCC.
 

+std=gnu1x
+C ObjC
+Conform to the ISO 201X C standard draft with GNU extensions (experimental and incomplete support)
+

 std=gnu89
 C ObjC
 Conform to the ISO 1990 C standard with GNU extensions
 
 std=gnu89
 C ObjC
 Conform to the ISO 1990 C standard with GNU extensions
 

+std=gnu90
+C ObjC
+Conform to the ISO 1990 C standard with GNU extensions
+

 std=gnu99
 C ObjC
 Conform to the ISO 1999 C standard with GNU extensions
 std=gnu99
 C ObjC
 Conform to the ISO 1999 C standard with GNU extensions