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| author | Sergey Ostanevich <sergos.gnu@gmail.com> | 2013-11-28 07:54:58 +0000 |
|---|---|---|
| committer | Kirill Yukhin <kyukhin@gcc.gnu.org> | 2013-11-28 07:54:58 +0000 |
| commit | 8b5e12023b56dfc83c037053612b08f5ee7eac61 (patch) | |
| tree | bea8238b89ef5aab5339621f7b4ebff4f5333c76 /gcc/doc | |
| parent | d0da87f3783422d0c4b952f7f6d373e6d51a84d3 (diff) | |
| download | gcc-8b5e12023b56dfc83c037053612b08f5ee7eac61.zip gcc-8b5e12023b56dfc83c037053612b08f5ee7eac61.tar.gz gcc-8b5e12023b56dfc83c037053612b08f5ee7eac61.tar.bz2 | |
common.opt: Introduced a new option -fsimd-cost-model.
gcc/
* common.opt: Introduced a new option -fsimd-cost-model.
* doc/invoke.texi: Introduced a new openmp-simd warning and
a new -fsimd-cost-model option.
* tree-vectorizer.h (unlimited_cost_model): Interface updated
to rely on the particular loop info.
* tree-vect-data-refs.c (vect_peeling_hash_insert): Ditto.
(vect_peeling_hash_choose_best_peeling): Ditto.
(vect_enhance_data_refs_alignment): Ditto.
* tree-vect-slp.c (vect_slp_analyze_bb_1): Ditto.
* tree-vect-loop.c (vect_estimate_min_profitable_iters): Ditto
plus added openmp-simd warining.
gcc/c-family/
* c.opt (Wopenmp-simd): New.
gcc/fortran/
* lang.opt (Wopenmp-simd): New.
From-SVN: r205475
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 466eee0..2d074a2 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -256,7 +256,7 @@ Objective-C and Objective-C++ Dialects}. -Wlogical-op -Wlong-long @gol -Wmain -Wmaybe-uninitialized -Wmissing-braces -Wmissing-field-initializers @gol -Wmissing-include-dirs @gol --Wno-multichar -Wnonnull -Wno-overflow @gol +-Wno-multichar -Wnonnull -Wno-overflow -Wopenmp-simd @gol -Woverlength-strings -Wpacked -Wpacked-bitfield-compat -Wpadded @gol -Wparentheses -Wpedantic-ms-format -Wno-pedantic-ms-format @gol -Wpointer-arith -Wno-pointer-to-int-cast @gol @@ -3321,6 +3321,7 @@ Options} and @ref{Objective-C and Objective-C++ Dialect Options}. -Wmaybe-uninitialized @gol -Wmissing-braces @r{(only for C/ObjC)} @gol -Wnonnull @gol +-Wopenmp-simd @gol -Wparentheses @gol -Wpointer-sign @gol -Wreorder @gol @@ -4815,6 +4816,12 @@ attribute. @opindex Woverflow Do not warn about compile-time overflow in constant expressions. +@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. + @item -Woverride-init @r{(C and Objective-C only)} @opindex Woverride-init @opindex Wno-override-init @@ -8071,6 +8078,14 @@ is equal to the @code{dynamic} model. The default cost model depends on other optimization flags and is either @code{dynamic} or @code{cheap}. +@item -fsimd-cost-model=@var{model} +@opindex fsimd-cost-model +Alter the cost model used for vectorization of loops marked with the OpenMP +or Cilk Plus simd directive. The @var{model} argument should be one of +@code{unlimited}, @code{dynamic}, @code{cheap}. All values of @var{model} +have the same meaning as described in @option{-fvect-cost-model} and by +default a cost model defined with @option{-fvect-cost-model} is used. + @item -ftree-vrp @opindex ftree-vrp Perform Value Range Propagation on trees. This is similar to the |