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| author | davids <davids@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-11-25 17:12:28 +0000 |
|---|---|---|
| committer | davids <davids@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-11-25 17:12:28 +0000 |
| commit | 154294999927c90d4dcf881bcd76099604e5a91e (patch) | |
| tree | 9f0d2aa8a0fe20a54db2718aaed1374f98424162 | |
| parent | f6b304634e9e270241b68edf6b0dbac9f1456512 (diff) | |
| download | gcc-154294999927c90d4dcf881bcd76099604e5a91e.tar.gz | |
2015-11-25 David Sherwood <david.sherwood@arm.com>
* optabs.def: Add new optabs fmax_optab/fmin_optab.
* internal-fn.def: Add new fmax/fmin internal functions.
* doc/md.texi: Add fmin and fmax patterns.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@230888 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/doc/md.texi | 9 | ||||
| -rw-r--r-- | gcc/internal-fn.def | 2 | ||||
| -rw-r--r-- | gcc/optabs.def | 4 |
4 files changed, 21 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b00bfb0b6b5..c5687e559d5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2015-11-25 David Sherwood <david.sherwood@arm.com> + + * optabs.def: Add new optabs fmax_optab/fmin_optab. + * internal-fn.def: Add new fmax/fmin internal functions. + * doc/md.texi: Add fmin and fmax patterns. + 2015-11-25 Jason Merrill <jason@redhat.com> PR c++/68385 diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi index de1b58a985e..add8920ff47 100644 --- a/gcc/doc/md.texi +++ b/gcc/doc/md.texi @@ -4980,6 +4980,15 @@ Signed minimum and maximum operations. When used with floating point, if both operands are zeros, or if either operand is @code{NaN}, then it is unspecified which of the two operands is returned as the result. +@cindex @code{fmin@var{m}3} instruction pattern +@cindex @code{fmax@var{m}3} instruction pattern +@item @samp{fmin@var{m}3}, @samp{fmax@var{m}3} +IEEE-conformant minimum and maximum operations. If one operand is a quiet +@code{NaN}, then the other operand is returned. If both operands are quiet +@code{NaN}, then a quiet @code{NaN} is returned. In the case when gcc supports +signalling @code{NaN} (-fsignaling-nans) an invalid floating point exception is +raised and a quiet @code{NaN} is returned. + @cindex @code{reduc_smin_@var{m}} instruction pattern @cindex @code{reduc_smax_@var{m}} instruction pattern @item @samp{reduc_smin_@var{m}}, @samp{reduc_smax_@var{m}} diff --git a/gcc/internal-fn.def b/gcc/internal-fn.def index 825dba11f24..dee9332c3d6 100644 --- a/gcc/internal-fn.def +++ b/gcc/internal-fn.def @@ -125,6 +125,8 @@ DEF_INTERNAL_FLT_FN (FMOD, ECF_CONST, fmod, binary) DEF_INTERNAL_FLT_FN (POW, ECF_CONST, pow, binary) DEF_INTERNAL_FLT_FN (REMAINDER, ECF_CONST, remainder, binary) DEF_INTERNAL_FLT_FN (SCALB, ECF_CONST, scalb, binary) +DEF_INTERNAL_FLT_FN (FMIN, ECF_CONST, fmin, binary) +DEF_INTERNAL_FLT_FN (FMAX, ECF_CONST, fmax, binary) /* FP scales. */ DEF_INTERNAL_FLT_FN (LDEXP, ECF_CONST, ldexp, binary) diff --git a/gcc/optabs.def b/gcc/optabs.def index c141a3ca6ff..20e4225d733 100644 --- a/gcc/optabs.def +++ b/gcc/optabs.def @@ -253,6 +253,10 @@ OPTAB_D (sin_optab, "sin$a2") OPTAB_D (sincos_optab, "sincos$a3") OPTAB_D (tan_optab, "tan$a2") +/* C99 implementations of fmax/fmin. */ +OPTAB_D (fmax_optab, "fmax$a3") +OPTAB_D (fmin_optab, "fmin$a3") + /* Vector reduction to a scalar. */ OPTAB_D (reduc_smax_scal_optab, "reduc_smax_scal_$a") OPTAB_D (reduc_smin_scal_optab, "reduc_smin_scal_$a") |