[PPL-devel] [GIT] ppl/ppl(ppl-0_10-branch): Only use fmaf(), fma() and fmal() if they are fast.

[Roberto Bagnara]

Module: ppl/ppl
Branch: ppl-0_10-branch
Commit: 753671e93149e0d82aef0afcd6279e78711f2cfe
URL:    http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=753671e93149e0d82aef0afcd6279e78711f2cfe

Author: Roberto Bagnara <bagnara at cs.unipr.it>
Date:   Fri Apr 10 22:24:18 2009 +0200

Only use fmaf(), fma() and fmal() if they are fast.

---

 src/checked_float.inlines.hh |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/checked_float.inlines.hh b/src/checked_float.inlines.hh
index 828ef0e..6783260 100644
--- a/src/checked_float.inlines.hh
+++ b/src/checked_float.inlines.hh
@@ -34,7 +34,8 @@ namespace Checked {
 
 inline float
 fma(float x, float y, float z) {
-#if PPL_HAVE_DECL_FMAF && !defined(__alpha) && !defined(__FreeBSD__)
+#if PPL_HAVE_DECL_FMAF && defined(FP_FAST_FMAF) \
+  && !defined(__alpha) && !defined(__FreeBSD__)
   return ::fmaf(x, y, z);
 #else
   return x*y + z;
@@ -43,7 +44,8 @@ fma(float x, float y, float z) {
 
 inline double
 fma(double x, double y, double z) {
-#if PPL_HAVE_DECL_FMA && !defined(__alpha) && !defined(__FreeBSD__)
+#if PPL_HAVE_DECL_FMA && defined(FP_FAST_FMA) \
+  && !defined(__alpha) && !defined(__FreeBSD__)
   return ::fma(x, y, z);
 #else
   return x*y + z;
@@ -52,7 +54,8 @@ fma(double x, double y, double z) {
 
 inline long double
 fma(long double x, long double y, long double z) {
-#if PPL_HAVE_DECL_FMAL && !defined(__alpha) && !defined(__FreeBSD__)
+#if PPL_HAVE_DECL_FMAL && defined(FP_FAST_FMAL) \
+  && !defined(__alpha) && !defined(__FreeBSD__)
   return ::fmal(x, y, z);
 #else
   return x*y + z;