From 066432fc2a897e2382af16e1c88a565861e0efb6 Mon Sep 17 00:00:00 2001 From: sandra Date: Sat, 21 Mar 2015 23:30:54 +0000 Subject: [PATCH] 2015-03-21 Sandra Loosemore gcc/ * doc/invoke.texi (-fno-diagnostics-show-caret): Fix usage of "the @option{...}". (-Wopenmp-simd): Likewise. (-fsanitize-recover): Likewise. (-fsanitize-undefined-trap-on-error): Likewise. (-flto): Likewise. (tracer-dynamic-coverage-feedback): Likewise. (reorder-block-duplicate-feedback): Likewise. (loop-unroll-jam-size): Likewise. (-B): Likewise. (-I-): Likewise. (-mabs=legacy): Likewise. (-mupper-regs-df): Likewise. (-mupper-regs-sf): Likewise. (-mpointers-to-nested-functions): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@221564 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 18 ++++++++++++++++++ gcc/doc/invoke.texi | 41 +++++++++++++++++++++++------------------ 2 files changed, 41 insertions(+), 18 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0b41215efd7..d0ed566deb4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,23 @@ 2015-03-21 Sandra Loosemore + * doc/invoke.texi (-fno-diagnostics-show-caret): Fix + usage of "the @option{...}". + (-Wopenmp-simd): Likewise. + (-fsanitize-recover): Likewise. + (-fsanitize-undefined-trap-on-error): Likewise. + (-flto): Likewise. + (tracer-dynamic-coverage-feedback): Likewise. + (reorder-block-duplicate-feedback): Likewise. + (loop-unroll-jam-size): Likewise. + (-B): Likewise. + (-I-): Likewise. + (-mabs=legacy): Likewise. + (-mupper-regs-df): Likewise. + (-mupper-regs-sf): Likewise. + (-mpointers-to-nested-functions): Likewise. + +2015-03-21 Sandra Loosemore + * doc/extend.texi (Cilk Plus Builtins): Add markup. 2015-03-21 Sandra Loosemore diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 59e833a043b..5c6e410aa4a 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -3253,7 +3253,7 @@ option is known to the diagnostic machinery). Specifying the By default, each diagnostic emitted includes the original source line and a caret '^' indicating the column. This option suppresses this information. The source line is truncated to @var{n} characters, if -the @option{-fmessage-length=n} is given. When the output is done +the @option{-fmessage-length=n} option is given. When the output is done to the terminal, the width is limited to the width given by the @env{COLUMNS} environment variable or, if not set, to the terminal width. @@ -5157,8 +5157,8 @@ Requires @option{-flto-odr-type-merging} to be enabled. Enabled by default. @item -Wopenmp-simd @opindex Wopenm-simd Warn if the vectorizer cost model overrides the OpenMP or the Cilk Plus -simd directive set by user. The @option{-fsimd-cost-model=unlimited} can -be used to relax the cost model. +simd directive set by user. The @option{-fsimd-cost-model=unlimited} +option can be used to relax the cost model. @item -Woverride-init @r{(C and Objective-C only)} @opindex Woverride-init @@ -5810,7 +5810,8 @@ for a sanitizer component causes it to attempt to continue running the program as if no error happened. This means multiple runtime errors can be reported in a single program run, and the exit code of the program may indicate success even when errors -have been reported. The @option{-fno-sanitize-recover=} can be used to alter +have been reported. The @option{-fno-sanitize-recover=} option +can be used to alter this behavior: only the first detected error is reported and program then exits with a non-zero exit code. @@ -5834,7 +5835,7 @@ Similarly @option{-fno-sanitize-recover} is equivalent to @item -fsanitize-undefined-trap-on-error @opindex fsanitize-undefined-trap-on-error -The @option{-fsanitize-undefined-trap-on-error} instructs the compiler to +The @option{-fsanitize-undefined-trap-on-error} option instructs the compiler to report undefined behavior using @code{__builtin_trap} rather than a @code{libubsan} library routine. The advantage of this is that the @code{libubsan} library is not needed and is not linked in, so this @@ -9259,7 +9260,8 @@ them as usual to produce @file{myprog}. The only important thing to keep in mind is that to enable link-time optimizations you need to use the GCC driver to perform the link-step. GCC then automatically performs link-time optimization if any of the -objects involved were compiled with the @option{-flto}. You generally +objects involved were compiled with the @option{-flto} command-line option. +You generally should specify the optimization options to be used for link-time optimization though GCC tries to be clever at guessing an optimization level to use from the options used at compile-time @@ -10446,7 +10448,8 @@ This value is used to limit superblock formation once the given percentage of executed instructions is covered. This limits unnecessary code size expansion. -The @option{tracer-dynamic-coverage-feedback} is used only when profile +The @option{tracer-dynamic-coverage-feedback} parameter +is used only when profile feedback is available. The real profiles (as opposed to statically estimated ones) are much less balanced allowing the threshold to be larger value. @@ -10534,7 +10537,8 @@ branch or duplicate the code on its destination. Code is duplicated when its estimated size is smaller than this value multiplied by the estimated size of unconditional jump in the hot spots of the program. -The @option{reorder-block-duplicate-feedback} is used only when profile +The @option{reorder-block-duplicate-feedback} parameter +is used only when profile feedback is available. It may be set to higher values than @option{reorder-block-duplicate} since information about the hot spots is more accurate. @@ -10811,7 +10815,7 @@ length can be changed using the @option{loop-block-tile-size} parameter. The default value is 51 iterations. @item loop-unroll-jam-size -Specify the unroll factor for the @option{-floop-unroll-and-jam}. The +Specify the unroll factor for the @option{-floop-unroll-and-jam} option. The default value is 4. @item loop-unroll-jam-depth @@ -11446,7 +11450,7 @@ those results in a file name that is found, the unmodified program name is searched for using the directories specified in your @env{PATH} environment variable. -The compiler checks to see if the path provided by the @option{-B} +The compiler checks to see if the path provided by @option{-B} refers to a directory, and if necessary it adds a directory separator character at the end of the path. @@ -11508,13 +11512,14 @@ such a suffix. @item -I- @opindex I- This option has been deprecated. Please use @option{-iquote} instead for -@option{-I} directories before the @option{-I-} and remove the @option{-I-}. +@option{-I} directories before the @option{-I-} and remove the @option{-I-} +option. Any directories you specify with @option{-I} options before the @option{-I-} option are searched only for the case of @code{#include "@var{file}"}; they are not searched for @code{#include <@var{file}>}. If additional directories are specified with @option{-I} options after -the @option{-I-}, these directories are searched for all @code{#include} +the @option{-I-} option, these directories are searched for all @code{#include} directives. (Ordinarily @emph{all} @option{-I} directories are used this way.) @@ -17172,7 +17177,7 @@ These options control the treatment of the special not-a-number (NaN) IEEE 754 floating-point data with the @code{abs.@i{fmt}} and @code{neg.@i{fmt}} machine instructions. -By default or when the @option{-mabs=legacy} is used the legacy +By default or when @option{-mabs=legacy} is used the legacy treatment is selected. In this case these instructions are considered arithmetic and avoided where correct operation is required and the input operand might be a NaN. A longer sequence of instructions that @@ -19048,8 +19053,8 @@ instructions. The @option{-mquad-memory-atomic} option requires use of Generate code that uses (does not use) the scalar double precision instructions that target all 64 registers in the vector/scalar floating point register set that were added in version 2.06 of the -PowerPC ISA. The @option{-mupper-regs-df} turned on by default if you -use either of the @option{-mcpu=power7}, @option{-mcpu=power8}, or +PowerPC ISA. @option{-mupper-regs-df} is turned on by default if you +use any of the @option{-mcpu=power7}, @option{-mcpu=power8}, or @option{-mvsx} options. @item -mupper-regs-sf @@ -19059,8 +19064,8 @@ use either of the @option{-mcpu=power7}, @option{-mcpu=power8}, or Generate code that uses (does not use) the scalar single precision instructions that target all 64 registers in the vector/scalar floating point register set that were added in version 2.07 of the -PowerPC ISA. The @option{-mupper-regs-sf} turned on by default if you -use either of the @option{-mcpu=power8}, or @option{-mpower8-vector} +PowerPC ISA. @option{-mupper-regs-sf} is turned on by default if you +use either of the @option{-mcpu=power8} or @option{-mpower8-vector} options. @item -mupper-regs @@ -19829,7 +19834,7 @@ static chain value to be loaded in register @code{r11}. The @option{-mpointers-to-nested-functions} is on by default. You cannot call through pointers to nested functions or pointers to functions compiled in other languages that use the static chain if -you use the @option{-mno-pointers-to-nested-functions}. +you use @option{-mno-pointers-to-nested-functions}. @item -msave-toc-indirect @itemx -mno-save-toc-indirect -- 2.11.4.GIT