* check.c (same_type_check): Typo fix in comment.

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

diff --git a/gcc/common.opt b/gcc/common.opt
index 5b00a7b..4aaa4d2 100644 (file)
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -8,12 +8,12 @@
 ; the terms of the GNU General Public License as published by the Free
 ; Software Foundation; either version 2, or (at your option) any later
 ; version.
-; 
+;
 ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
 ; WARRANTY; without even the implied warranty of MERCHANTABILITY or
 ; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 ; for more details.
-; 
+;
 ; You should have received a copy of the GNU General Public License
 ; along with GCC; see the file COPYING.  If not, write to the Free
 ; Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
@@ -109,6 +109,10 @@ Wmissing-noreturn
 Common Var(warn_missing_noreturn)
 Warn about functions which might be candidates for __attribute__((noreturn))
 
+Woverflow
+Common Var(warn_overflow) Init(1)
+Warn about overflow in arithmetic expressions
+
 Wpacked
 Common Var(warn_packed)
 Warn when the packed attribute has no effect on struct layout
@@ -257,7 +261,9 @@ Common RejectNegative Joined UInteger
 ; 1 if pointer arguments may not alias each other but may alias
 ;   global variables.
 ; 2 if pointer arguments may not alias each other and may not
-;   alias global variables.  True in Fortran.
+;   alias global variables.
+; 3 if pointer arguments may not alias anything.  True in Fortran.
+;   Set by the front end.
 fargument-alias
 Common Report Var(flag_argument_noalias,0)
 Specify that arguments may alias each other and globals
@@ -270,6 +276,10 @@ fargument-noalias-global
 Common Report Var(flag_argument_noalias,2) VarExists
 Assume arguments alias neither each other nor globals
 
+fargument-noalias-anything
+Common Report Var(flag_argument_noalias,3) VarExists
+Assume arguments alias no other storage
+
 fasynchronous-unwind-tables
 Common Report Var(flag_asynchronous_unwind_tables)
 Generate unwind tables that are exact at each instruction boundary
@@ -371,9 +381,13 @@ fdump-
 Common Joined RejectNegative
 -fdump-<type>  Dump various compiler internals to a file
 
+fdump-noaddr
+Common Report Var(flag_dump_noaddr)
+Suppress output of addresses in debugging dumps
+
 fdump-unnumbered
 Common Report Var(flag_dump_unnumbered) VarExists
-Suppress output of instruction numbers and line number notes in debugging dumps
+Suppress output of instruction numbers, line number notes and addresses in debugging dumps
 
 fearly-inlining
 Common Report Var(flag_early_inlining) Init(1)
@@ -391,6 +405,10 @@ feliminate-unused-debug-types
 Common Report Var(flag_eliminate_unused_debug_types) Init(1)
 Perform unused type elimination in debug info
 
+femit-class-debug-always
+Common Report Var(flag_emit_class_debug_always) Init(1)
+Do not suppress C++ class debug information.
+
 fexceptions
 Common Report Var(flag_exceptions)
 Enable exception handling
@@ -426,6 +444,10 @@ fforce-mem
 Common Report Var(flag_force_mem)
 Copy memory operands into registers before use
 
+fforward-propagate
+Common Report Var(flag_forward_propagate)
+Perform a forward propagation pass on RTL
+
 ; Nonzero means don't put addresses of constant functions in registers.
 ; Used for compiling the Unix kernel, where strange substitutions are
 ; done on the assembly output.
@@ -595,7 +617,7 @@ Common RejectNegative Report Var(flag_mudflap)
 Add mudflap bounds-checking instrumentation for single-threaded program
 
 fmudflapth
-Common RejectNegative Report Var(flag_mudflap_threads)
+Common RejectNegative Report VarExists Var(flag_mudflap,2)
 Add mudflap bounds-checking instrumentation for multi-threaded program
 
 fmudflapir
@@ -772,7 +794,7 @@ Common Report Var(flag_sched_stalled_insns)
 Allow premature scheduling of queued insns
 
 fsched-stalled-insns=
-Common RejectNegative Joined UInteger 
+Common RejectNegative Joined UInteger
 -fsched-stalled-insns=<number> Set number of queued insns that can be prematurely scheduled
 
 ; sched_stalled_insns_dep controls how many recently scheduled cycles will
@@ -795,6 +817,10 @@ frtl-abstract-sequences
 Common Report Var(flag_rtl_seqabstr)
 Perform sequence abstraction optimization on RTL
 
+fsee
+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
@@ -812,7 +838,7 @@ Common Report Var(flag_split_ivs_in_unroller) Init(1)
 Split lifetimes of induction variables when loops are unrolled
 
 fvariable-expansion-in-unroller
-Common Report Var(flag_variable_expansion_in_unroller) 
+Common Report Var(flag_variable_expansion_in_unroller)
 Apply variable expansion when loops are unrolled
 
 ; Emit code to probe the stack, to help detect stack overflow; also
@@ -1070,11 +1096,11 @@ Common JoinedOrMissing
 Generate debug information in default format
 
 gcoff
-Common JoinedOrMissing
+Common JoinedOrMissing Negative(gdwarf-2)
 Generate debug information in COFF format
 
 gdwarf-2
-Common JoinedOrMissing
+Common JoinedOrMissing Negative(gstabs)
 Generate debug information in DWARF v2 format
 
 ggdb
@@ -1082,23 +1108,23 @@ Common JoinedOrMissing
 Generate debug information in default extended format
 
 gstabs
-Common JoinedOrMissing
+Common JoinedOrMissing Negative(gstabs+)
 Generate debug information in STABS format
 
 gstabs+
-Common JoinedOrMissing
+Common JoinedOrMissing Negative(gvms)
 Generate debug information in extended STABS format
 
 gvms
-Common JoinedOrMissing
+Common JoinedOrMissing Negative(gxcoff)
 Generate debug information in VMS format
 
 gxcoff
-Common JoinedOrMissing
+Common JoinedOrMissing Negative(gxcoff+)
 Generate debug information in XCOFF format
 
 gxcoff+
-Common JoinedOrMissing
+Common JoinedOrMissing Negative(gcoff)
 Generate debug information in extended XCOFF format
 
 o