; Options for the language- and target-independent parts of the compiler.
-; 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.
Wframe-larger-than=
Common RejectNegative Joined UInteger
--Wframe-larger-than=<number> Warn if a function's stack frame requires more than <number> bytes
+-Wframe-larger-than=<number> Warn if a function's stack frame requires more than <number> bytes
Winline
Common Var(warn_inline) Warning
Warn about uninitialized automatic variables
Wunreachable-code
-Common Var(warn_notreached) Warning
-Warn about code that will never be executed
+Common
+Does nothing. Preserved for backward compatibility.
Wunused
Common Var(warn_unused) Init(0) Warning
Common Separate
-dumpbase <file> Set the file basename to be used for dumps
+dumpdir
+Common Separate
+-dumpdir <dir> Set the directory name to be used for dumps
+
; The version of the C++ ABI in use. The following values are allowed:
;
; 0: The version of the ABI believed most conformant with the C++ ABI
;
; 1: The version of the ABI first used in G++ 3.2.
;
-; 2: The version of the ABI first used in G++ 3.4.
+; 2: The version of the ABI first used in G++ 3.4 (and current default).
+;
+; 3: The version of the ABI that fixes the missing underscore
+; in template non-type arguments of pointer type.
+;
+; 4: The version of the ABI that introduces unambiguous mangling of
+; vector types.
;
; Additional positive integers will be assigned as new versions of
; the ABI become the default version of the ABI.
Common Report Var(flag_no_common,0) Optimization
Do not put uninitialized globals in the common section
-fconserve-stack
-Common Var(flag_conserve_stack) Optimization
-Do not perform optimizations increasing noticeably stack usage
-
fcompare-debug=
Common JoinedOrMissing RejectNegative Var(flag_compare_debug_opt)
--fcompare-debug[=<opts>] Compile with and without e.g. -gtoggle, and compare the final-insns dump
+-fcompare-debug[=<opts>] Compile with and without e.g. -gtoggle, and compare the final-insns dump
fcompare-debug-second
Common RejectNegative Var(flag_compare_debug)
Run only the second compilation of -fcompare-debug
+fconserve-stack
+Common Var(flag_conserve_stack) Optimization
+Do not perform optimizations increasing noticeably stack usage
+
fcprop-registers
Common Report Var(flag_cprop_registers) Optimization
Perform a register copy-propagation optimization pass
fdbg-cnt=
Common RejectNegative Joined
--fdbg-cnt=<counter>:<limit>[,<counter>:<limit>,...] Set the debug counter limit.
+-fdbg-cnt=<counter>:<limit>[,<counter>:<limit>,...] Set the debug counter limit.
fdebug-prefix-map=
Common Joined RejectNegative
Common Report Var(flag_dump_unnumbered) VarExists
Suppress output of instruction numbers, line number notes and addresses in debugging dumps
-fdwarf2-cfi-asm
-Common Report Var(flag_dwarf2_cfi_asm) Init(HAVE_GAS_CFI_DIRECTIVE)
-Enable CFI tables via GAS assembler directives.
-
fdump-unnumbered-links
Common Report Var(flag_dump_unnumbered_links) VarExists
Suppress output of previous and next insn numbers in debugging dumps
+fdwarf2-cfi-asm
+Common Report Var(flag_dwarf2_cfi_asm) Init(HAVE_GAS_CFI_DIRECTIVE)
+Enable CFI tables via GAS assembler directives.
+
fearly-inlining
Common Report Var(flag_early_inlining) Init(1) Optimization
Perform early inlining
Common Report Var(flag_eliminate_dwarf2_dups)
Perform DWARF2 duplicate elimination
+fipa-sra
+Common Report Var(flag_ipa_sra) Init(0) Optimization
+Perform interprocedural reduction of aggregates
+
feliminate-unused-debug-symbols
Common Report Var(flag_debug_only_used_symbols)
Perform unused type elimination in debug info
Common Report Var(flag_emit_class_debug_always) Init(0)
Do not suppress C++ class debug information.
+fenable-icf-debug
+Common Report Var(flag_enable_icf_debug)
+Generate debug information to support Identical Code Folding (ICF)
+
fexceptions
Common Report Var(flag_exceptions) Optimization
Enable exception handling
Common Report Var(flag_graphite)
Enable in and out of Graphite representation
+fgraphite-identity
+Common Report Var(flag_graphite_identity) Optimization
+Enable Graphite Identity transformation
+
+floop-parallelize-all
+Common Report Var(flag_loop_parallelize_all) Optimization
+Mark all loops as parallel
+
floop-strip-mine
Common Report Var(flag_loop_strip_mine) Optimization
Enable Loop Strip Mining transformation
Common Report Var(flag_loop_block) Optimization
Enable Loop Blocking transformation
-; This option is not documented as it does not perform any useful optimization.
-fgraphite-identity
-Common Report Var(flag_graphite_identity) Optimization
-Enable Graphite Identity transformation
-
fguess-branch-probability
Common Report Var(flag_guess_branch_prob) Optimization
Enable guessing of branch probabilities
Common Report Var(flag_ira_coalesce) Init(0)
Do optimistic coalescing.
+fira-loop-pressure
+Common Report Var(flag_ira_loop_pressure)
+Use IRA based register pressure calculation
+in RTL loop optimizations.
+
fira-share-save-slots
Common Report Var(flag_ira_share_save_slots) Init(1)
Share slots for saving different hard registers.
fira-verbose=
Common RejectNegative Joined UInteger
--fira-verbose=<number> Control IRA's level of diagnostic messages.
+-fira-verbose=<number> Control IRA's level of diagnostic messages.
fivopts
Common Report Var(flag_ivopts) Init(1) Optimization
Common
Does nothing. Preserved for backward compatibility.
+flto
+Common Var(flag_lto)
+Enable link-time optimization.
+
+; The initial value of -1 comes from Z_DEFAULT_COMPRESSION in zlib.h.
+flto-compression-level=
+Common Joined UInteger Var(flag_lto_compression_level) Init(-1)
+-flto-compression-level=<number> Use zlib compression level <number> for IL
+
+flto-report
+Common Report Var(flag_lto_report) Init(0) Optimization
+Report various link-time optimization statistics
+
fmath-errno
Common Report Var(flag_errno_math) Init(1) Optimization
Set errno after built-in math functions
fplugin-arg-
Common Joined RejectNegative
--fplugin-arg-<name>-<key>[=<value>] Specify argument <key>=<value> for plugin <name>
+-fplugin-arg-<name>-<key>[=<value>] Specify argument <key>=<value> for plugin <name>
fpredictive-commoning
Common Report Var(flag_predictive_commoning) Optimization
Common Report Var(flag_schedule_interblock) Init(1) Optimization
Enable scheduling across basic blocks
+fsched-pressure
+Common Report Var(flag_sched_pressure) Init(0) Optimization
+Enable register pressure sensitive insn scheduling
+
fsched-spec
Common Report Var(flag_schedule_speculative) Init(1) Optimization
Allow speculative motion of non-loads
If scheduling post reload, do superblock scheduling
fsched2-use-traces
-Common Report Var(flag_sched2_use_traces) Optimization
-If scheduling post reload, do trace scheduling
+Common
+Does nothing. Preserved for backward compatibility.
fschedule-insns
Common Report Var(flag_schedule_insns) Optimization
Common Report Var(flag_sched_spec_insn_heuristic) Init(1) Optimization
Enable the speculative instruction heuristic in the scheduler
-fsched-reg-pressure-heuristic
-Common Report Var(flag_sched_reg_pressure_heuristic) Init(1) Optimization
-Enable the register pressure heuristic in the scheduler
-
fsched-rank-heuristic
Common Report Var(flag_sched_rank_heuristic) Init(1) Optimization
Enable the rank heuristic in the scheduler
Common Report Var(flag_unwind_tables) Optimization
Just generate unwind tables for exception handling
+fuse-linker-plugin
+Common Undocumented
+
fvar-tracking
Common Report Var(flag_var_tracking) VarExists Optimization
Perform variable tracking
+fvar-tracking-assignments
+Common Report Var(flag_var_tracking_assignments) VarExists Optimization
+Perform variable tracking by annotating assignments
+
+fvar-tracking-assignments-toggle
+Common Report Var(flag_var_tracking_assignments_toggle) VarExists Optimization
+Toggle -fvar-tracking-assignments
+
fvar-tracking-uninit
Common Report Var(flag_var_tracking_uninit) Optimization
Perform variable tracking and also tag variables that are uninitialized
Common Report Var(flag_web) Init(2) Optimization
Construct webs and split unrelated uses of single variable
+fwhopr
+Common Var(flag_whopr)
+Enable partitioned link-time optimization.
+
ftree-builtin-call-dce
Common Report Var(flag_tree_builtin_call_dce) Init(0) Optimization
Enable conditional dead code elimination for builtin calls
Common JoinedOrMissing Negative(gvms)
Generate debug information in extended STABS format
+gno-strict-dwarf
+Common RejectNegative Var(dwarf_strict,0) Init(-1)
+Emit DWARF additions beyond selected version
+
+gstrict-dwarf
+Common Report RejectNegative Var(dwarf_strict,1) VarExists
+Don't emit DWARF additions beyond selected version
+
gtoggle
Common Report Var(flag_gtoggle)
Toggle debug information generation