X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fcommon.opt;h=dae5d61637d092ac8304cf3a7a6bd83f4bccf180;hb=5628aad44e58ae8de6f077bb7136af9891481955;hp=065220562f7f5cbc0336db93b139a73cd77a8b26;hpb=794febf80e3b76795d7fa4321bfaf3d97d9943bd;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/gcc/common.opt b/gcc/common.opt
index 065220562f7..dae5d61637d 100644
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -1,6 +1,7 @@
 ; Options for the language- and target-independent parts of the compiler.
 
-; Copyright (C) 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008
+; Free Software Foundation, Inc.
 ;
 ; This file is part of GCC.
 ;
@@ -18,7 +19,7 @@
 ; along with GCC; see the file COPYING3.  If not see
 ; <http://www.gnu.org/licenses/>.
 
-; See the GCC internals manual for a description of this file's format.
+; See the GCC internals manual (options.texi) for a description of this file's format.
 
 ; Please try to keep this file in ASCII collating order.
 
@@ -109,13 +110,27 @@ Wfatal-errors
 Common Var(flag_fatal_errors)
 Exit on the first error occurred
 
+Wframe-larger-than=
+Common RejectNegative Joined UInteger
+-Wframe-larger-than=@var{len} Warn whenever a function's stack frame requires
+more than @var{len} bytes.  The computation done to determine
+the stack frame size is approximate and not conservative.
+The actual requirements may be somewhat greater than @var{len}
+even if you do not get a warning.  In addition, any space allocated
+via @code{alloca}, variable-length arrays, or related constructs
+is not included by the compiler when determining
+whether or not to issue a warning.
+
 Winline
 Common Var(warn_inline) Warning
 Warn when an inlined function cannot be inlined
 
 Wlarger-than-
 Common RejectNegative Joined UInteger Warning
--Wlarger-than-<number>	Warn if an object is larger than <number> bytes
+
+Wlarger-than=
+Common RejectNegative Joined UInteger Warning
+-Wlarger-than=<number>	Warn if an object is larger than <number> bytes
 
 Wlogical-op
 Common Warning Var(warn_logical_op)
@@ -129,6 +144,10 @@ Wmissing-noreturn
 Common Var(warn_missing_noreturn) Warning
 Warn about functions which might be candidates for __attribute__((noreturn))
 
+Wmudflap
+Common Var(warn_mudflap) Init(1) Warning
+Warn about constructs not instrumented by -fmudflap
+
 Woverflow
 Common Var(warn_overflow) Init(1) Warning
 Warn about overflow in arithmetic expressions
@@ -154,7 +173,7 @@ Common Warning
 Warn about code which might break strict aliasing rules
 
 Wstrict-aliasing=
-Common Joined UInteger Warning
+Common Joined UInteger Var(warn_strict_aliasing) Init(-1) Warning
 Warn about code which might break strict aliasing rules
 
 Wstrict-overflow
@@ -162,7 +181,7 @@ Common Warning
 Warn about optimizations that assume that signed overflow is undefined
 
 Wstrict-overflow=
-Common Joined UInteger Warning
+Common Joined UInteger Var(warn_strict_overflow) Init(-1) Warning
 Warn about optimizations that assume that signed overflow is undefined
 
 Wswitch
@@ -181,6 +200,10 @@ Wsystem-headers
 Common Var(warn_system_headers) Warning
 Do not suppress warnings from system headers
 
+Wtype-limits
+Common Var(warn_type_limits) Init(-1) Warning
+Warn if a comparison is always true or always false due to the limited range of the data type
+
 Wuninitialized
 Common Var(warn_uninitialized) Warning
 Warn about uninitialized automatic variables
@@ -213,10 +236,6 @@ Wunused-variable
 Common Var(warn_unused_variable) Warning
 Warn when a variable is unused
 
-Wvolatile-register-var
-Common Var(warn_register_var) Warning
-Warn when a register variable is declared volatile
-
 Wcoverage-mismatch
 Common RejectNegative Var(warn_coverage_mismatch) Warning
 Warn instead of error in case profiles in -fprofile-use do not match
@@ -389,6 +408,10 @@ fcx-limited-range
 Common Report Var(flag_cx_limited_range) Optimization
 Omit range reduction step when performing complex division
 
+fcx-fortran-rules
+Common Report Var(flag_cx_fortran_rules) Optimization
+Complex multiplication and division follow Fortran rules
+
 fdata-sections
 Common Report Var(flag_data_sections) Optimization
 Place data items into their own section
@@ -482,11 +505,9 @@ ffloat-store
 Common Report Var(flag_float_store) Optimization
 Don't allocate floats and doubles in extended-precision registers
 
-; Nonzero for -fforce-addr: load memory address into a register before
-; reference to memory.  This makes better cse but slower compilation.
 fforce-addr
-Common Report Var(flag_force_addr) Optimization
-Copy memory address constants into registers before use
+Common
+Does nothing.  Preserved for backward compatibility.
 
 fforward-propagate
 Common Report Var(flag_forward_propagate) Optimization
@@ -666,6 +687,10 @@ fmerge-constants
 Common Report Var(flag_merge_constants,1) VarExists Optimization
 Attempt to merge identical constants across compilation units
 
+fmerge-debug-strings
+Common Report Var(flag_merge_debug_strings) Init(1)
+Attempt to merge identical debug strings across compilation units
+
 fmessage-length=
 Common RejectNegative Joined UInteger
 -fmessage-length=<number>	Limit diagnostics to <number> characters per line.  0 suppresses line-wrapping
@@ -790,14 +815,27 @@ fprofile-arcs
 Common Report Var(profile_arc_flag)
 Insert arc-based program profiling code
 
+fprofile-dir=
+Common Joined RejectNegative
+Set the top-level directory for storing the profile data.
+The default is 'pwd'.
+
 fprofile-generate
 Common
 Enable common options for generating profile info for profile feedback directed optimizations
 
+fprofile-generate=
+Common Joined RejectNegative
+Enable common options for generating profile info for profile feedback directed optimizations, and set -fprofile-dir=
+
 fprofile-use
-Common
+Common Var(flag_profile_use)
 Enable common options for performing profile feedback directed optimizations
 
+fprofile-use=
+Common Joined RejectNegative
+Enable common options for performing profile feedback directed optimizations, and set -fprofile-dir=
+
 fprofile-values
 Common Report Var(flag_profile_values)
 Insert code to profile values of expressions
@@ -926,8 +964,8 @@ Common Report Var(flag_see) Init(0)
 Eliminate redundant sign extensions using LCM.
 
 fshow-column
-Common C ObjC C++ ObjC++ Report Var(flag_show_column) Init(1)
-Show column numbers in diagnostics, when available.  Default on
+Common C ObjC C++ ObjC++ Report Var(flag_show_column) Init(0)
+Show column numbers in diagnostics, when available.  Default off
 
 fsignaling-nans
 Common Report Var(flag_signaling_nans) Optimization
@@ -1055,7 +1093,7 @@ Enable copy propagation on trees
 
 ftree-store-copy-prop
 Common
-This switch is obsolete
+Does nothing.  Preserved for backward compatibility.
 
 ftree-cselim
 Common Report Var(flag_tree_cselim) Init(2) Optimization
@@ -1077,6 +1115,10 @@ ftree-fre
 Common Report Var(flag_tree_fre) Optimization
 Enable Full Redundancy Elimination (FRE) on trees
 
+ftree-loop-distribution
+Common Report Var(flag_tree_loop_distribution)
+Enable loop distribution on trees
+
 ftree-loop-im
 Common Report Var(flag_tree_loop_im) Init(1) Optimization
 Enable loop invariant motion on trees