in the following sections.
.IP "\fIOverall Options\fR" 4
.IX Item "Overall Options"
-\&\fB\-c \-S \-E \-o\fR \fIfile\fR \fB\-combine \-pipe \-pass\-exit\-codes
+\&\fB\-c \-S \-E \-o\fR \fIfile\fR \fB\-combine \-no\-canonical\-prefixes
+\&\-pipe \-pass\-exit\-codes
\&\-x\fR \fIlanguage\fR \fB\-v \-### \-\-help\fR[\fB=\fR\fIclass\fR[\fB,...\fR]] \fB\-\-target\-help
\&\-\-version \-wrapper@\fR\fIfile\fR \fB\-fplugin=\fR\fIfile\fR \fB\-fplugin\-arg\-\fR\fIname\fR\fB=\fR\fIarg\fR
.IP "\fIC Language Options\fR" 4
\&\-fcheck\-data\-deps \-fconserve\-stack \-fcprop\-registers \-fcrossjumping
\&\-fcse\-follow\-jumps \-fcse\-skip\-blocks \-fcx\-fortran\-rules \-fcx\-limited\-range
\&\-fdata\-sections \-fdce \-fdce
-\&\-fdelayed\-branch \-fdelete\-null\-pointer\-checks \-fdse \-fdse
+\&\-fdelayed\-branch \-fdelete\-null\-pointer\-checks \-fdse \-fdse \-fdyn\-ipa
\&\-fearly\-inlining \-fexpensive\-optimizations \-ffast\-math
\&\-ffinite\-math\-only \-ffloat\-store \-fforward\-propagate
\&\-ffunction\-sections \-fgcse \-fgcse\-after\-reload \-fgcse\-las \-fgcse\-lm
\&\-freciprocal\-math \-fregmove \-frename\-registers \-freorder\-blocks
\&\-freorder\-blocks\-and\-partition \-freorder\-functions
\&\-frerun\-cse\-after\-loop \-freschedule\-modulo\-scheduled\-loops
-\&\-frounding\-math \-frtl\-abstract\-sequences \-fsched2\-use\-superblocks
+\&\-frounding\-math \-fsched2\-use\-superblocks
\&\-fsched2\-use\-traces \-fsched\-spec\-load \-fsched\-spec\-load\-dangerous
\&\-fsched\-stalled\-insns\-dep[=\fR\fIn\fR\fB] \-fsched\-stalled\-insns[=\fR\fIn\fR\fB]
\&\-fschedule\-insns \-fschedule\-insns2 \-fsection\-anchors \-fsee
\&\-maes \-mpclmul
\&\-msse4a \-m3dnow \-mpopcnt \-mabm \-msse5
\&\-mthreads \-mno\-align\-stringops \-minline\-all\-stringops
-\&\-minline\-stringops\-dynamically \-mstringop\-strategy=\fR\fIalg\fR
-\&\fB\-mpush\-args \-maccumulate\-outgoing\-args \-m128bit\-long\-double
-\&\-m96bit\-long\-double \-mregparm=\fR\fInum\fR \fB\-msseregparm
+\&\-minline\-stringops\-dynamically \-minline\-compares
+\&\-mstringop\-strategy=\fR\fIalg\fR \fB\-mpush\-args \-maccumulate\-outgoing\-args
+\&\-m128bit\-long\-double \-m96bit\-long\-double \-mregparm=\fR\fInum\fR \fB\-msseregparm
\&\-mveclibabi=\fR\fItype\fR \fB\-mpc32 \-mpc64 \-mpc80 \-mstackrealign
\&\-momit\-leaf\-frame\-pointer \-mno\-red\-zone \-mno\-tls\-direct\-seg\-refs
\&\-mcmodel=\fR\fIcode-model\fR
\& diff /tmp/O2\-opts /tmp/O3\-opts | grep enabled
.Ve
.RE
+.IP "\fB\-no\-canonical\-prefixes\fR" 4
+.IX Item "-no-canonical-prefixes"
+Do not expand any symbolic links, resolve references to \fB/../\fR
+or \fB/./\fR, or make the path absolute when generating a relative
+prefix.
.IP "\fB\-\-version\fR" 4
.IX Item "--version"
Display the version number and copyrights of the invoked \s-1GCC\s0.
generally profitable only with profile feedback available.
.Sp
The following options are enabled: \f(CW\*(C`\-fbranch\-probabilities\*(C'\fR, \f(CW\*(C`\-fvpt\*(C'\fR,
-\&\f(CW\*(C`\-funroll\-loops\*(C'\fR, \f(CW\*(C`\-fpeel\-loops\*(C'\fR, \f(CW\*(C`\-ftracer\*(C'\fR
+\&\f(CW\*(C`\-funroll\-loops\*(C'\fR, \f(CW\*(C`\-fpeel\-loops\*(C'\fR
.Sp
By default, \s-1GCC\s0 emits an error message if the feedback profiles do not
match the source code. This error can be turned into a warning by using
.Sp
If \fIpath\fR is specified, \s-1GCC\s0 will look at the \fIpath\fR to find
the profile feedback data files. See \fB\-fprofile\-dir\fR.
+.IP "\fB\-fdyn\-ipa\fR" 4
+.IX Item "-fdyn-ipa"
+Perform dynamic inter-procedural analysis. This is used in conjunction with
+the \fB\-fprofile\-generate\fR and \fB\-fprofile\-use\fR options.
+During the \fB\-fprofile\-generate\fR phase, this flag turns on some additional
+instrumentation code that enables dynamic call-graph analysis.
+During the \fB\-fprofile\-use\fR phase, this flag enables cross-module
+optimizations such as inlining.
.PP
The following options control compiler behavior regarding floating
point arithmetic. These options trade off between speed and
Future versions of \s-1GCC\s0 may provide finer control of this setting
using C99's \f(CW\*(C`FENV_ACCESS\*(C'\fR pragma. This command line option
will be used to specify the default state for \f(CW\*(C`FENV_ACCESS\*(C'\fR.
-.IP "\fB\-frtl\-abstract\-sequences\fR" 4
-.IX Item "-frtl-abstract-sequences"
-It is a size optimization method. This option is to find identical
-sequences of code, which can be turned into pseudo-procedures and
-then replace all occurrences with calls to the newly created
-subroutine. It is kind of an opposite of \fB\-finline\-functions\fR.
-This optimization runs at \s-1RTL\s0 level.
.IP "\fB\-fsignaling\-nans\fR" 4
.IX Item "-fsignaling-nans"
Compile code assuming that \s-1IEEE\s0 signaling NaNs may generate user-visible
When you use \fB\-finline\-functions\fR (included in \fB\-O3\fR),
a lot of functions that would otherwise not be considered for inlining
by the compiler will be investigated. To those functions, a different
-(more restrictive) limit compared to functions declared inline can
+(potentially more restrictive) limit compared to functions declared inline can
be applied.
-The default value is 90.
+The default value is 450.
+.IP "\fBinline-limit-increase-with-profile\fR" 4
+.IX Item "inline-limit-increase-with-profile"
+When profile information is available, such as when compiling
+with \fB\-fprofile\-use\fR, the maximum function size
+limits \fB\-\-param max-inline-insns-single\fR
+and \fB\-\-param max-inline-insns-auto\fR are increased by this percentage
+amount. Profile information increases the selectivity and quality of the
+inlining decisions, so having a larger set of candidate functions available
+for inlining can improve performance.
+The default value is 100.
.IP "\fBlarge-function-insns\fR" 4
.IX Item "large-function-insns"
The limit specifying really large functions. For functions larger than this
The maximum number of peelings of a single loop.
.IP "\fBmax-completely-peeled-insns\fR" 4
.IX Item "max-completely-peeled-insns"
+.PD 0
+.IP "\fBmax-completely-peeled-insns-feedback\fR" 4
+.IX Item "max-completely-peeled-insns-feedback"
+.PD
The maximum number of insns of a completely peeled loop.
+.Sp
+The \fBmax-completely-peeled-insns-feedback\fR is used only when profile
+feedback is available and the loop is hot. Because of the real profiles, this
+value may set to be larger for hot loops.
+.IP "\fBmax-once-peeled-insns\fR" 4
+.IX Item "max-once-peeled-insns"
+.PD 0
+.IP "\fBmax-once-peeled-insns-feedback\fR" 4
+.IX Item "max-once-peeled-insns-feedback"
+.PD
+The maximum number of insns of a peeled loop that rolls only once.
+The \fBmax-once-peeled-insns-feedback\fR is used only when profile feedback
+is available and the loop is hot. Because of the real profiles, this value
+may set to be larger for hot loops.
.IP "\fBmax-completely-peel-times\fR" 4
.IX Item "max-completely-peel-times"
+.PD 0
+.IP "\fBmax-completely-peel-times-feedback\fR" 4
+.IX Item "max-completely-peel-times-feedback"
+.PD
The maximum number of iterations of a loop to be suitable for complete peeling.
+.Sp
+The \fBmax-completely-peel-times-feedback\fR is used only when profile feedback
+is available and the loop is hot. Because of the real profiles, this value may
+set to be larger for hot loops.
.IP "\fBmax-unswitch-insns\fR" 4
.IX Item "max-unswitch-insns"
The maximum number of insns of an unswitched loop.
.IX Item "-minline-stringops-dynamically"
For string operation of unknown size, inline runtime checks so for small
blocks inline code is used, while for large blocks library call is used.
+.IP "\fB\-minline\-compares\fR" 4
+.IX Item "-minline-compares"
+This option enables \s-1GCC\s0 to inline calls to memcmp and strcmp. The
+inlined version does a byte-by-byte comparion using a repeat string
+operation prefix.
.IP "\fB\-mstringop\-strategy=\fR\fIalg\fR" 4
.IX Item "-mstringop-strategy=alg"
Overwrite internal decision heuristic about particular algorithm to inline
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