X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gcc%2Fcommon.opt;h=be6fe4f35d2ed894697b39cdcbe9decc454e8d63;hb=7e8d1b2d1ef3ab73a6123b0fa5000e4675752d97;hp=492d25e4646c80163aef44f536cd03830f5feb12;hpb=967444bbf8f78f46dd5df5c924a7650e4ad323ac;p=gcc.git

diff --git a/gcc/common.opt b/gcc/common.opt
index 492d25e4646..be6fe4f35d2 100644
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -1,6 +1,6 @@
 ; Options for the language- and target-independent parts of the compiler.
 
-; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
 ; Free Software Foundation, Inc.
 ;
 ; This file is part of GCC.
@@ -32,11 +32,21 @@ int optimize
 Variable
 int optimize_size
 
+Variable
+int optimize_debug
+
 ; Not used directly to control optimizations, only to save -Ofast
 ; setting for "optimize" attributes.
 Variable
 int optimize_fast
 
+; True if this is the lto front end.  This is used to disable gimple
+; generation and lowering passes that are normally run on the output
+; of a front end.  These passes must be bypassed for lto since they
+; have already been done before the gimple was written.
+Variable
+bool in_lto_p = false
+
 ; 0 means straightforward implementation of complex divide acceptable.
 ; 1 means wide ranges of inputs must work for complex divide.
 ; 2 means C99-like requirements for complex multiply and divide.
@@ -131,13 +141,14 @@ bool use_gnu_debug_info_extensions
 Variable
 unsigned int initial_max_fld_align = TARGET_DEFAULT_PACK_STRUCT
 
-Variable
-enum vect_verbosity_levels user_vect_verbosity_level = MAX_VERBOSITY_LEVEL
-
 ; Type of stack check.
 Variable
 enum stack_check_type flag_stack_check = NO_STACK_CHECK
 
+; True if stack usage information needs to be computed.
+Variable
+bool flag_stack_usage_info = false
+
 ; -dA causes debug commentary information to be produced in
 ; the generated assembly code (to make it more readable).  This option
 ; is generally only of use to those who actually need to read the
@@ -280,6 +291,9 @@ Driver Alias(no-canonical-prefixes)
 -no-standard-libraries
 Driver Alias(nostdlib)
 
+-no-sysroot-suffix
+Driver Var(no_sysroot_suffix)
+
 -no-warnings
 Common Alias(w)
 
@@ -296,13 +310,13 @@ Common Driver Joined Alias(o) MissingArgError(missing filename after %qs)
 Driver Alias(pass-exit-codes)
 
 -pedantic
-Common Alias(pedantic)
+Common Alias(Wpedantic)
 
 -pedantic-errors
 Common Alias(pedantic-errors)
 
 -pie
-Common Alias(pie)
+Driver Alias(pie)
 
 -pipe
 Driver Alias(pipe)
@@ -334,6 +348,9 @@ Driver Alias(print-multi-lib)
 -print-multi-os-directory
 Driver Alias(print-multi-os-directory)
 
+-print-multiarch
+Driver Alias(print-multiarch)
+
 -print-prog-name
 Driver Separate Alias(print-prog-name=)
 
@@ -356,7 +373,7 @@ Common Alias(p)
 Driver Alias(save-temps)
 
 -shared
-Common Alias(shared)
+Driver Alias(shared)
 
 -specs
 Driver Separate Alias(specs=)
@@ -435,6 +452,10 @@ Ofast
 Common Optimization
 Optimize for speed disregarding exact standards compliance
 
+Og
+Common Optimization
+Optimize for debugging experience rather than speed or size
+
 Q
 Driver
 
@@ -532,10 +553,18 @@ Wframe-larger-than=
 Common RejectNegative Joined UInteger
 -Wframe-larger-than=<number>	Warn if a function's stack frame requires more than <number> bytes
 
+Wfree-nonheap-object
+Common Var(warn_free_nonheap_object) Init(1) Warning
+Warn when attempting to free a non-heap object
+
 Winline
 Common Var(warn_inline) Warning
 Warn when an inlined function cannot be inlined
 
+Winvalid-memory-model
+Common Var(warn_invalid_memory_model) Init(1) Warning
+Warn when an atomic memory model parameter is known to be outside the valid range.
+
 Wlarger-than-
 Common RejectNegative Joined Warning Undocumented Alias(Wlarger-than=)
 
@@ -548,12 +577,7 @@ Common Var(warn_unsafe_loop_optimizations) Warning
 Warn if the loop cannot be optimized due to nontrivial assumptions.
 
 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
+Common Alias(Wsuggest-attribute=noreturn)
 
 Woverflow
 Common Var(warn_overflow) Init(1) Warning
@@ -567,6 +591,10 @@ Wpadded
 Common Var(warn_padded) Warning
 Warn when padding is required to align structure members
 
+Wpedantic
+Common Var(pedantic) Warning
+Issue warnings needed for strict compliance to the standard
+
 Wshadow
 Common Var(warn_shadow) Warning
 Warn when one local variable shadows another
@@ -575,12 +603,16 @@ Wstack-protector
 Common Var(warn_stack_protect) Warning
 Warn when not issuing stack smashing protection for some reason
 
+Wstack-usage=
+Common Joined RejectNegative UInteger Var(warn_stack_usage) Init(-1) Warning
+Warn if stack usage might be larger than specified amount
+
 Wstrict-aliasing
 Common Warning
 Warn about code which might break strict aliasing rules
 
 Wstrict-aliasing=
-Common Joined RejectNegative UInteger Var(warn_strict_aliasing) Init(-1) Warning
+Common Joined RejectNegative UInteger Var(warn_strict_aliasing) Warning
 Warn about code which might break strict aliasing rules
 
 Wstrict-overflow
@@ -588,7 +620,7 @@ Common Warning
 Warn about optimizations that assume that signed overflow is undefined
 
 Wstrict-overflow=
-Common Joined RejectNegative UInteger Var(warn_strict_overflow) Init(-1) Warning
+Common Joined RejectNegative UInteger Var(warn_strict_overflow) Warning
 Warn about optimizations that assume that signed overflow is undefined
 
 Wsuggest-attribute=const
@@ -603,18 +635,6 @@ Wsuggest-attribute=noreturn
 Common Var(warn_suggest_attribute_noreturn) Warning
 Warn about functions which might be candidates for __attribute__((noreturn))
 
-Wswitch
-Common Var(warn_switch) Warning
-Warn about enumerated switches, with no default, missing a case
-
-Wswitch-default
-Common Var(warn_switch_default) Warning
-Warn about enumerated switches missing a \"default:\" statement
-
-Wswitch-enum
-Common Var(warn_switch_enum) Warning
-Warn about all enumerated switches missing a specific case
-
 Wsystem-headers
 Common Var(warn_system_headers) Warning
 Do not suppress warnings from system headers
@@ -624,15 +644,15 @@ Common Var(warn_trampolines) Warning
 Warn whenever a trampoline is generated
 
 Wtype-limits
-Common Var(warn_type_limits) Init(-1) Warning
+Common Var(warn_type_limits) Warning EnabledBy(Wextra)
 Warn if a comparison is always true or always false due to the limited range of the data type
 
 Wuninitialized
-Common Var(warn_uninitialized) Init(-1) Warning
+Common Var(warn_uninitialized) Warning EnabledBy(Wextra)
 Warn about uninitialized automatic variables
 
 Wmaybe-uninitialized
-Common Var(warn_maybe_uninitialized) Warning
+Common Var(warn_maybe_uninitialized) Warning EnabledBy(Wuninitialized)
 Warn about maybe uninitialized automatic variables
 
 Wunreachable-code
@@ -644,37 +664,41 @@ Common Var(warn_unused) Init(0) Warning
 Enable all -Wunused- warnings
 
 Wunused-but-set-parameter
-Common Var(warn_unused_but_set_parameter) Init(-1) Warning
+Common Var(warn_unused_but_set_parameter) Warning EnabledBy(Wunused && Wextra)
 Warn when a function parameter is only set, otherwise unused
 
 Wunused-but-set-variable
-Common Var(warn_unused_but_set_variable) Init(-1) Warning
+Common Var(warn_unused_but_set_variable) Warning EnabledBy(Wunused)
 Warn when a variable is only set, otherwise unused
 
 Wunused-function
-Common Var(warn_unused_function) Init(-1) Warning
+Common Var(warn_unused_function) Warning EnabledBy(Wunused)
 Warn when a function is unused
 
 Wunused-label
-Common Var(warn_unused_label) Init(-1) Warning
+Common Var(warn_unused_label) Warning EnabledBy(Wunused)
 Warn when a label is unused
 
 Wunused-parameter
-Common Var(warn_unused_parameter) Init(-1) Warning
+Common Var(warn_unused_parameter) Warning EnabledBy(Wunused && Wextra)
 Warn when a function parameter is unused
 
 Wunused-value
-Common Var(warn_unused_value) Init(-1) Warning
+Common Var(warn_unused_value) Warning EnabledBy(Wunused)
 Warn when an expression value is unused
 
 Wunused-variable
-Common Var(warn_unused_variable) Init(-1) Warning
+Common Var(warn_unused_variable) Warning EnabledBy(Wunused)
 Warn when a variable is unused
 
 Wcoverage-mismatch
 Common Var(warn_coverage_mismatch) Init(1) Warning
 Warn in case profiles in -fprofile-use do not match
 
+Wvector-operation-performance
+Common Var(warn_vector_operation_performance) Warning
+Warn when a vector operation is compiled outside the SIMD
+
 Xassembler
 Driver Separate
 
@@ -759,9 +783,14 @@ Driver Undocumented
 ;    function parameters used in other parameters and the return type.
 ;    First selectable in G++ 4.6.
 ;
-; 6: The version of the ABI that doesn't promote scoped enums to int.
+; 6: The version of the ABI that doesn't promote scoped enums to int and
+;    changes the mangling of template argument packs, const/static_cast,
+;    prefix ++ and --, and a class scope function used as a template
+;    argument.
 ;    First selectable in G++ 4.7.
 ;
+; 7: The version of the ABI that treats nullptr_t as a builtin type.
+;    First selectable in G++ 4.8.
 ; Additional positive integers will be assigned as new versions of
 ; the ABI become the default version of the ABI.
 fabi-version=
@@ -811,6 +840,10 @@ fargument-noalias-anything
 Common Ignore
 Does nothing. Preserved for backward compatibility.
 
+faddress-sanitizer
+Common Report Var(flag_asan)
+Enable AddressSanitizer, a memory error detector
+
 fasynchronous-unwind-tables
 Common Report Var(flag_asynchronous_unwind_tables) Optimization
 Generate unwind tables that are exact at each instruction boundary
@@ -935,7 +968,7 @@ Common Joined RejectNegative Var(common_deferred_options) Defer
 Map one directory name to another in debug information
 
 fdebug-types-section
-Common Report Var(flag_debug_types_section) Init(1)
+Common Report Var(flag_debug_types_section) Init(0)
 Output .debug_types section when using DWARF v4 debuginfo.
 
 ; Nonzero for -fdefer-pop: don't pop args after each function call
@@ -948,6 +981,10 @@ fdelayed-branch
 Common Report Var(flag_delayed_branch) Optimization
 Attempt to fill delay slots of branch instructions
 
+fdelete-dead-exceptions
+Common Report Var(flag_delete_dead_exceptions) Init(0)
+Delete dead instructions that may throw exceptions
+
 fdelete-null-pointer-checks
 Common Report Var(flag_delete_null_pointer_checks) Init(1) Optimization
 Delete useless null pointer checks
@@ -973,10 +1010,22 @@ Enum(diagnostic_prefixing_rule) String(once) Value(DIAGNOSTICS_SHOW_PREFIX_ONCE)
 EnumValue
 Enum(diagnostic_prefixing_rule) String(every-line) Value(DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE)
 
+fdiagnostics-show-caret
+Common Var(flag_diagnostics_show_caret) Init(1)
+Show the source line with a caret indicating the column
+
 fdiagnostics-show-option
 Common Var(flag_diagnostics_show_option) Init(1)
 Amend appropriate diagnostic messages with the command line option that controls them
 
+fdisable-
+Common Joined RejectNegative Var(common_deferred_options) Defer
+-fdisable-[tree|rtl|ipa]-<pass>=range1+range2 disables an optimization pass
+
+fenable-
+Common Joined RejectNegative Var(common_deferred_options) Defer
+-fenable-[tree|rtl|ipa]-<pass>=range1+range2 enables an optimization pass
+
 fdump-
 Common Joined RejectNegative Var(common_deferred_options) Defer
 -fdump-<type>	Dump various compiler internals to a file
@@ -996,6 +1045,10 @@ fdump-noaddr
 Common Report Var(flag_dump_noaddr)
 Suppress output of addresses in debugging dumps
 
+fdump-passes
+Common Var(flag_dump_passes) Init(0)
+Dump optimization passes
+
 fdump-unnumbered
 Common Report Var(flag_dump_unnumbered)
 Suppress output of instruction numbers, line number notes and addresses in debugging dumps
@@ -1056,6 +1109,10 @@ Enum(excess_precision) String(standard) Value(EXCESS_PRECISION_STANDARD)
 ffast-math
 Common
 
+ffat-lto-objects
+Common Var(flag_fat_lto_objects) Init(1)
+Output lto objects containing both the intermediate language and binary output.
+
 ffinite-math-only
 Common Report Var(flag_finite_math_only) Optimization SetByCombined
 Assume no NaNs or infinities are generated
@@ -1135,6 +1192,11 @@ fgraphite-identity
 Common Report Var(flag_graphite_identity) Optimization
 Enable Graphite Identity transformation
 
+fhoist-adjacent-loads
+Common Report Var(flag_hoist_adjacent_loads) Optimization
+Enable hoisting adjacent loads to encourage generating conditional move
+instructions
+
 floop-parallelize-all
 Common Report Var(flag_loop_parallelize_all) Optimization
 Mark all loops as parallel
@@ -1151,9 +1213,17 @@ floop-block
 Common Report Var(flag_loop_block) Optimization
 Enable Loop Blocking transformation
 
+fgnu-tm
+Common Report Var(flag_tm)
+Enable support for GNU transactional memory
+
 floop-flatten
-Common Report Var(flag_loop_flatten) Optimization
-Enable Loop Flattening transformation
+Common Ignore
+Does nothing. Preserved for backward compatibility.
+
+floop-nest-optimize
+Common Report Var(flag_loop_optimize_isl) Optimization
+Enable the ISL based loop nest optimizer
 
 fstrict-volatile-bitfields
 Common Report Var(flag_strict_volatile_bitfields) Init(-1)
@@ -1179,6 +1249,22 @@ fif-conversion2
 Common Report Var(flag_if_conversion2) Optimization
 Perform conversion of conditional jumps to conditional execution
 
+fstack-reuse=
+Common Joined RejectNegative Enum(stack_reuse_level) Var(flag_stack_reuse) Init(SR_ALL)
+-fstack-reuse=[all|named_vars|none] Set stack reuse level for local variables.
+
+Enum
+Name(stack_reuse_level) Type(enum stack_reuse_level) UnknownError(unknown Stack Reuse Level %qs)
+
+EnumValue
+Enum(stack_reuse_level) String(all) Value(SR_ALL)
+
+EnumValue
+Enum(stack_reuse_level) String(named_vars) Value(SR_NAMED_VARS)
+
+EnumValue
+Enum(stack_reuse_level) String(none) Value(SR_NONE)
+
 ftree-loop-if-convert
 Common Report Var(flag_tree_loop_if_convert) Init(-1) Optimization
 Convert conditional jumps in innermost loops to branchless equivalents
@@ -1199,26 +1285,23 @@ findirect-inlining
 Common Report Var(flag_indirect_inlining)
 Perform indirect inlining
 
-; Nonzero means that functions declared `inline' will be treated
-; as `static'.  Prevents generation of zillions of copies of unused
-; static inline functions; instead, `inlines' are written out
-; only when actually used.  Used in conjunction with -g.  Also
-; does the right thing with #pragma interface.
+; General flag to enable inlining.  Specifying -fno-inline will disable
+; all inlining apart from always-inline functions.
 finline
-Common Report Var(flag_no_inline,0) Init(0)
-Pay attention to the \"inline\" keyword
+Common Report Var(flag_no_inline,0) Init(0) Optimization
+Enable inlining of function declared \"inline\", disabling disables all inlining
 
 finline-small-functions
 Common Report Var(flag_inline_small_functions) Optimization
-Integrate simple functions into their callers when code size is known to not growth
+Integrate functions into their callers when code size is known not to grow
 
 finline-functions
 Common Report Var(flag_inline_functions) Optimization
-Integrate simple functions into their callers
+Integrate functions not declared \"inline\" into their callers when profitable
 
 finline-functions-called-once
-Common Report Var(flag_inline_functions_called_once) Init(1) Optimization
-Integrate functions called once into their callers
+Common Report Var(flag_inline_functions_called_once) Optimization
+Integrate functions only required by their single caller
 
 finline-limit-
 Common RejectNegative Joined Alias(finline-limit=)
@@ -1227,6 +1310,10 @@ finline-limit=
 Common RejectNegative Joined UInteger
 -finline-limit=<number>	Limit the size of inlined functions to <number>
 
+finline-atomics
+Common Report Var(flag_inline_atomics) Init(1) Optimization
+Inline __atomic operations when a lock free instruction sequence is available.
+
 finstrument-functions
 Common Report Var(flag_instrument_function_entry_exit)
 Instrument function entry and exit with profiling calls
@@ -1264,9 +1351,8 @@ Common Report Var(flag_ipa_reference) Init(0) Optimization
 Discover readonly and non addressable static variables
 
 fipa-matrix-reorg
-Common Report Var(flag_ipa_matrix_reorg) Optimization
-Perform matrix layout flattening and transposing based
-on profiling information.
+Common Ignore
+Does nothing. Preserved for backward compatibility.
 
 fipa-struct-reorg
 Common Ignore
@@ -1286,7 +1372,7 @@ EnumValue
 Enum(ira_algorithm) String(priority) Value(IRA_ALGORITHM_PRIORITY)
 
 fira-region=
-Common Joined RejectNegative Enum(ira_region) Var(flag_ira_region) Init(IRA_REGION_MIXED)
+Common Joined RejectNegative Enum(ira_region) Var(flag_ira_region) Init(IRA_REGION_AUTODETECT)
 -fira-region=[one|all|mixed] Set regions for IRA
 
 Enum
@@ -1301,6 +1387,11 @@ Enum(ira_region) String(all) Value(IRA_REGION_ALL)
 EnumValue
 Enum(ira_region) String(mixed) Value(IRA_REGION_MIXED)
 
+fira-hoist-pressure
+Common Report Var(flag_ira_hoist_pressure) Init(1) Optimization
+Use IRA based register pressure calculation
+in RTL hoist optimizations.
+
 fira-loop-pressure
 Common Report Var(flag_ira_loop_pressure)
 Use IRA based register pressure calculation
@@ -1352,12 +1443,16 @@ Link-time optimization with number of parallel jobs or jobserver.
 
 flto-partition=1to1
 Common Var(flag_lto_partition_1to1)
-Partition functions and vars at linktime based on object files they originate from
+Partition symbols and vars at linktime based on object files they originate from
 
 flto-partition=balanced
 Common Var(flag_lto_partition_balanced)
 Partition functions and vars at linktime into approximately same sized buckets
 
+flto-partition=max
+Common Var(flag_lto_partition_max)
+Put every symbol into separate partition
+
 flto-partition=none
 Common Var(flag_lto_partition_none)
 Disable partioning and streaming
@@ -1368,7 +1463,7 @@ Common Joined RejectNegative 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
+Common Report Var(flag_lto_report) Init(0)
 Report various link-time optimization statistics
 
 fmath-errno
@@ -1383,6 +1478,10 @@ fmem-report
 Common Report Var(mem_report)
 Report on permanent memory allocation
 
+fmem-report-wpa
+Common Report Var(mem_report_wpa)
+Report on permanent memory allocation in WPA only
+
 ; This will attempt to merge constant section constants, if 1 only
 ; string constants and constants from constant pool, if 2 also constant
 ; variables.
@@ -1414,18 +1513,6 @@ fmove-loop-invariants
 Common Report Var(flag_move_loop_invariants) Init(1) Optimization
 Move loop invariant computations out of loops
 
-fmudflap
-Common RejectNegative Report Var(flag_mudflap)
-Add mudflap bounds-checking instrumentation for single-threaded program
-
-fmudflapth
-Common RejectNegative Report Var(flag_mudflap,2)
-Add mudflap bounds-checking instrumentation for multi-threaded program
-
-fmudflapir
-Common RejectNegative Report Var(flag_mudflap_ignore_reads)
-Ignore read operations when inserting mudflap instrumentation
-
 fdce
 Common Var(flag_dce) Init(1) Optimization
 Use the RTL dead code elimination pass
@@ -1446,6 +1533,14 @@ fomit-frame-pointer
 Common Report Var(flag_omit_frame_pointer) Optimization
 When possible do not generate stack frames
 
+fopt-info
+Common Report Var(flag_opt_info) Optimization
+Enable all optimization info dumps on stderr
+
+fopt-info-
+Common Joined RejectNegative Var(common_deferred_options) Defer
+-fopt-info[-<type>=filename]	Dump compiler optimization details
+
 foptimize-register-move
 Common Report Var(flag_regmove) Optimization
 Do the full register move optimization pass
@@ -1491,19 +1586,19 @@ Common Report Var(flag_peephole2) Optimization
 Enable an RTL peephole pass before sched2
 
 fPIC
-Common Report Var(flag_pic,2)
+Common Report Var(flag_pic,2) Negative(fPIE)
 Generate position-independent code if possible (large mode)
 
 fPIE
-Common Report Var(flag_pie,2)
+Common Report Var(flag_pie,2) Negative(fpic)
 Generate position-independent code for executables if possible (large mode)
 
 fpic
-Common Report Var(flag_pic,1)
+Common Report Var(flag_pic,1) Negative(fpie)
 Generate position-independent code if possible (small mode)
 
 fpie
-Common Report Var(flag_pie,1)
+Common Report Var(flag_pie,1) Negative(fPIC)
 Generate position-independent code for executables if possible (small mode)
 
 fplugin=
@@ -1559,6 +1654,10 @@ fprofile-values
 Common Report Var(flag_profile_values)
 Insert code to profile values of expressions
 
+fprofile-report
+Common Report Var(profile_report)
+Report on consistency of profile
+
 frandom-seed
 Common Var(common_deferred_options) Defer
 
@@ -1730,13 +1829,22 @@ Common Ignore
 Does nothing.  Preserved for backward compatibility.
 
 fzee
-Common Report Var(flag_zee) Init(0)
-Eliminate redundant zero extensions on targets that support implicit extensions.
+Common Ignore
+Does nothing.  Preserved for backward compatibility.
+
+free
+Common Report Var(flag_ree) Init(0)
+Turn on Redundant Extensions Elimination pass.
 
 fshow-column
 Common Report Var(flag_show_column) Init(1)
 Show column numbers in diagnostics, when available.  Default on
 
+fshrink-wrap
+Common Report Var(flag_shrink_wrap) Optimization
+Emit function prologues only before parts of the function that need it,
+rather than at the top of the function.
+
 fsignaling-nans
 Common Report Var(flag_signaling_nans) Optimization SetByCombined
 Disable optimizations observable by IEEE signaling NaNs
@@ -1812,6 +1920,10 @@ fstrict-overflow
 Common Report Var(flag_strict_overflow)
 Treat signed overflow as undefined
 
+fsync-libcalls
+Common Report Var(flag_sync_libcalls) Init(1)
+Implement __atomic operations via libcalls to legacy __sync functions
+
 fsyntax-only
 Common Report Var(flag_syntax_only)
 Check for syntax errors, then stop
@@ -1882,6 +1994,14 @@ ftree-ch
 Common Report Var(flag_tree_ch) Optimization
 Enable loop header copying on trees
 
+ftree-coalesce-inlined-vars
+Common Report Var(flag_ssa_coalesce_vars,1) Init(2) RejectNegative Optimization
+Enable coalescing of copy-related user variables that are inlined
+
+ftree-coalesce-vars
+Common Report Var(flag_ssa_coalesce_vars,2) Optimization
+Enable coalescing of all copy-related user variables
+
 ftree-copyrename
 Common Report Var(flag_tree_copyrename) Optimization
 Replace SSA temporaries with better names in copies
@@ -1910,6 +2030,10 @@ ftree-dominator-opts
 Common Report Var(flag_tree_dom) Optimization
 Enable dominator optimizations
 
+ftree-tail-merge
+Common Report Var(flag_tree_tail_merge) Optimization
+Enable tail merging on trees
+
 ftree-dse
 Common Report Var(flag_tree_dse) Optimization
 Enable dead store elimination
@@ -1922,6 +2046,10 @@ ftree-fre
 Common Report Var(flag_tree_fre) Optimization
 Enable Full Redundancy Elimination (FRE) on trees
 
+foptimize-strlen
+Common Report Var(flag_optimize_strlen) Optimization
+Enable string length optimizations on trees
+
 ftree-loop-distribution
 Common Report Var(flag_tree_loop_distribution) Optimization
 Enable loop distribution on trees
@@ -1958,6 +2086,10 @@ ftree-pre
 Common Report Var(flag_tree_pre) Optimization
 Enable SSA-PRE optimization on trees
 
+ftree-partial-pre
+Common Report Var(flag_tree_partial_pre) Optimization
+In SSA-PRE optimization on trees, enable partial-partial redundancy elimination
+
 ftree-pta
 Common Report Var(flag_tree_pta) Init(1) Optimization
 Perform function-local points-to analysis on trees.
@@ -1974,6 +2106,10 @@ ftree-sink
 Common Report Var(flag_tree_sink) Optimization
 Enable SSA code sinking on trees
 
+ftree-slsr
+Common Report Var(flag_tree_slsr) Optimization
+Perform straight-line strength reduction
+
 ftree-sra
 Common Report Var(flag_tree_sra) Optimization
 Perform scalar replacement of aggregates
@@ -2060,6 +2196,10 @@ fvar-tracking-assignments-toggle
 Common Report Var(flag_var_tracking_assignments_toggle) Optimization
 Toggle -fvar-tracking-assignments
 
+; Positive if we should track uninitialized variables, negative if
+; we should run the var-tracking pass only to discard debug
+; annotations.  When flag_var_tracking_uninit == AUTODETECT_VALUE it
+; will be set according to flag_var_tracking.
 fvar-tracking-uninit
 Common Report Var(flag_var_tracking_uninit) Optimization
 Perform variable tracking and also tag variables that are uninitialized
@@ -2068,6 +2208,10 @@ ftree-vectorize
 Common Report Var(flag_tree_vectorize) Optimization
 Enable loop vectorization on trees
 
+ftree-vectorizer-verbose=
+Common RejectNegative Joined UInteger Var(common_deferred_options) Defer
+-ftree-vectorizer-verbose=<number>	This switch is deprecated. Use -fopt-info instead.
+
 ftree-slp-vectorize
 Common Report Var(flag_tree_slp_vectorize) Init(2) Optimization
 Enable basic block vectorization (SLP) on trees
@@ -2080,10 +2224,6 @@ ftree-vect-loop-version
 Common Report Var(flag_tree_vect_loop_version) Init(1) Optimization
 Enable loop versioning when doing loop vectorization on trees
 
-ftree-vectorizer-verbose=
-Common RejectNegative Joined UInteger
--ftree-vectorizer-verbose=<number>	Set the verbosity level of the vectorizer
-
 ftree-scev-cprop
 Common Report Var(flag_tree_scev_cprop) Init(1) Optimization
 Enable copy propagation of scalar-evolution information.
@@ -2150,13 +2290,37 @@ Common JoinedOrMissing Negative(gdwarf-)
 Generate debug information in COFF format
 
 gdwarf-
-Common Joined UInteger Var(dwarf_version) Init(2) Negative(gstabs)
+Common Joined UInteger Var(dwarf_version) Init(4) Negative(gstabs)
 Generate debug information in DWARF v2 (or later) format
 
 ggdb
 Common JoinedOrMissing
 Generate debug information in default extended format
 
+gno-pubnames
+Common RejectNegative Var(debug_generate_pub_sections, 0) Init(-1)
+Don't generate DWARF pubnames and pubtypes sections.
+
+gpubnames
+Common RejectNegative Var(debug_generate_pub_sections, 1)
+Generate DWARF pubnames and pubtypes sections.
+
+gno-record-gcc-switches
+Common RejectNegative Var(dwarf_record_gcc_switches,0) Init(1)
+Don't record gcc command line switches in DWARF DW_AT_producer.
+
+grecord-gcc-switches
+Common RejectNegative Var(dwarf_record_gcc_switches,1)
+Record gcc command line switches in DWARF DW_AT_producer.
+
+gno-split-dwarf
+Common Driver RejectNegative Var(dwarf_split_debug_info,0) Init(0)
+Don't generate debug information in separate .dwo files
+
+gsplit-dwarf
+Common Driver RejectNegative Var(dwarf_split_debug_info,1)
+Generate debug information in separate .dwo files
+
 gstabs
 Common JoinedOrMissing Negative(gstabs+)
 Generate debug information in STABS format
@@ -2166,7 +2330,7 @@ Common JoinedOrMissing Negative(gvms)
 Generate debug information in extended STABS format
 
 gno-strict-dwarf
-Common RejectNegative Var(dwarf_strict,0) Init(-1)
+Common RejectNegative Var(dwarf_strict,0) Init(0)
 Emit DWARF additions beyond selected version
 
 gstrict-dwarf
@@ -2196,6 +2360,10 @@ iplugindir=
 Common Joined Var(plugindir_string) Init(0)
 -iplugindir=<dir>	Set <dir> to be the default plugin directory
 
+imultiarch
+Common Joined Separate RejectDriver Var(imultiarch) Init(0)
+-imultiarch <dir>	Set <dir> to be the multiarch include subdirectory
+
 l
 Driver Joined Separate
 
@@ -2226,8 +2394,7 @@ pass-exit-codes
 Driver Var(pass_exit_codes)
 
 pedantic
-Common Var(pedantic)
-Issue warnings needed for strict compliance to the standard
+Common Alias(Wpedantic)
 
 pedantic-errors
 Common Var(flag_pedantic_errors)
@@ -2253,6 +2420,9 @@ Driver Var(print_multi_lib)
 
 print-multi-os-directory
 Driver Var(print_multi_os_directory)
+ 
+print-multiarch
+Driver Var(print_multiarch)
 
 print-prog-name=
 Driver JoinedOrMissing Var(print_prog_name)
@@ -2317,7 +2487,7 @@ x
 Driver Joined Separate
 
 shared
-Common RejectNegative Negative(pie)
+Driver RejectNegative Negative(pie)
 Create a shared library
 
 shared-libgcc
@@ -2346,11 +2516,14 @@ static-libgo
 Driver
 ; Documented for Go, but always accepted by driver.
 
+static-libasan
+Driver
+
 symbolic
 Driver
 
 pie
-Common RejectNegative Negative(shared)
+Driver RejectNegative Negative(shared)
 Create a position independent executable
 
 z