Variable
int optimize_size
+Variable
+int optimize_debug
+
; Not used directly to control optimizations, only to save -Ofast
; setting for "optimize" attributes.
Variable
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
-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=)
Common Optimization
Optimize for speed disregarding exact standards compliance
+Og
+Common Optimization
+Optimize for debugging experience rather than speed or size
+
Q
Driver
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
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
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
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
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 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
; 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)
+Common Report Var(flag_no_inline,0) Init(0) Optimization
Enable inlining of function declared \"inline\", disabling disables all inlining
finline-small-functions
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
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
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.
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
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=
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
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
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
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.
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
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
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)
Driver
; Documented for Go, but always accepted by driver.
+static-libasan
+Driver
+
symbolic
Driver
projects / gcc.git / blobdiff