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authorJakub Jelinek <jakub@redhat.com>2011-08-04 15:40:16 -0400
committerUlrich Drepper <drepper@gmail.com>2011-08-04 15:40:16 -0400
commit85188888f63b9fc7f40437baeed4c7d6e4f30e18 (patch)
tree6a502d80c5cb17106625ad7e97e333b8f2fd4ce8
parentb969a69b2e6f5d83fb7434a91e415d39cd1d3f07 (diff)
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Fix up __kernel_rem_pio2 for FLT_EVAL_METHOD != 0 architectures
-rw-r--r--ChangeLog5
-rw-r--r--sysdeps/ieee754/dbl-64/k_rem_pio2.c18
2 files changed, 17 insertions, 6 deletions
diff --git a/ChangeLog b/ChangeLog
index 1cf7e22581..fbacbd5699 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-08-01 Jakub Jelinek <jakub@redhat.com>
+
+ * sysdeps/ieee754/dbl-64/k_rem_pio2.c (__kernel_rem_pio2): Fix up fq
+ to y conversion for prec 3 and __FLT_EVAL_METHOD__ != 0.
+
2011-07-22 Liubov Dmitrieva <liubov.dmitrieva@intel.com>
* sysdeps/i386/i686/multiarch/strcat-sse2.S: Update.
diff --git a/sysdeps/ieee754/dbl-64/k_rem_pio2.c b/sysdeps/ieee754/dbl-64/k_rem_pio2.c
index ccf1633bd4..911ff1fe35 100644
--- a/sysdeps/ieee754/dbl-64/k_rem_pio2.c
+++ b/sysdeps/ieee754/dbl-64/k_rem_pio2.c
@@ -300,14 +300,20 @@ recompute:
break;
case 3: /* painful */
for (i=jz;i>0;i--) {
- fw = fq[i-1]+fq[i];
- fq[i] += fq[i-1]-fw;
- fq[i-1] = fw;
+#if __FLT_EVAL_METHOD__ != 0
+ volatile
+#endif
+ double fv = (double)(fq[i-1]+fq[i]);
+ fq[i] += fq[i-1]-fv;
+ fq[i-1] = fv;
}
for (i=jz;i>1;i--) {
- fw = fq[i-1]+fq[i];
- fq[i] += fq[i-1]-fw;
- fq[i-1] = fw;
+#if __FLT_EVAL_METHOD__ != 0
+ volatile
+#endif
+ double fv = (double)(fq[i-1]+fq[i]);
+ fq[i] += fq[i-1]-fv;
+ fq[i-1] = fv;
}
for (fw=0.0,i=jz;i>=2;i--) fw += fq[i];
if(ih==0) {