; 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
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
; 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
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
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
Give external symbols a leading underscore
floop-optimize
-Common Report Var(flag_loop_optimize)
-Perform loop optimizations
+Common
+Does nothing. Preserved for backward compatibility.
fmath-errno
Common Report Var(flag_errno_math) Init(1)
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
Generate position-independent code for executables if possible (small mode)
fprefetch-loop-arrays
-Common Report Var(flag_prefetch_loop_arrays,1)
-Generate prefetch instructions, if available, for arrays in loops
-
-fprefetch-loop-arrays-rtl
-Common Report Var(flag_prefetch_loop_arrays,2)
+Common Report Var(flag_prefetch_loop_arrays)
Generate prefetch instructions, if available, for arrays in loops
fprofile
Add a common subexpression elimination pass after loop optimizations
frerun-loop-opt
-Common Report Var(flag_rerun_loop_opt)
-Run the loop optimizer twice
+Common
+Does nothing. Preserved for backward compatibility.
frounding-math
Common Report Var(flag_rounding_math)
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
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
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
Use a stack protection method for every function
fstrength-reduce
-Common Report Var(flag_strength_reduce)
-Perform strength reduction optimizations
+Common
+Does nothing. Preserved for backward compatibility.
; Nonzero if we should do (language-dependent) alias analysis.
; Typically, this analysis will assume that expressions of certain
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
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
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