aboutsummaryrefslogtreecommitdiff
path: root/sysdeps
diff options
context:
space:
mode:
authorJoseph Myers <joseph@codesourcery.com>2015-10-09 22:23:39 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-10-09 22:23:39 +0000
commitf1226a2ae370b1412b5e31a8535ad58a9174dd0a (patch)
treeb1c7487efb9d519a2661c86d26aa2b152bcef64c /sysdeps
parent06d97e5e6100641df2c379459e41b26bb4d7648b (diff)
downloadglibc-f1226a2ae370b1412b5e31a8535ad58a9174dd0a.zip
glibc-f1226a2ae370b1412b5e31a8535ad58a9174dd0a.tar.gz
glibc-f1226a2ae370b1412b5e31a8535ad58a9174dd0a.tar.bz2
Fix llrint, llround missing exceptions for ARM (bug 15470).
Similar to the recent fix for MIPS, ARM is also missing correct exceptions on overflow from llrint and llround functions because casts from floating-point types to long long do not result in correct exceptions on overflow. This patch enables the fix for this for ARM. Tested for ARM. [BZ #15470] * sysdeps/arm/fix-fp-int-convert-overflow.h: New file.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/arm/fix-fp-int-convert-overflow.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/sysdeps/arm/fix-fp-int-convert-overflow.h b/sysdeps/arm/fix-fp-int-convert-overflow.h
new file mode 100644
index 0000000..3ce720c
--- /dev/null
+++ b/sysdeps/arm/fix-fp-int-convert-overflow.h
@@ -0,0 +1,32 @@
+/* Fix for conversion of floating point to integer overflow. ARM version.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef FIX_FP_INT_CONVERT_OVERFLOW_H
+#define FIX_FP_INT_CONVERT_OVERFLOW_H 1
+
+/* As of GCC 5, the generic libgcc2.c conversions from floating point
+ to long long may not raise the correct exceptions on overflow (and
+ may raise spurious "inexact" exceptions even in non-overflow cases,
+ see <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59412>). */
+#define FIX_FLT_LLONG_CONVERT_OVERFLOW 1
+#define FIX_DBL_LLONG_CONVERT_OVERFLOW 1
+
+#define FIX_FLT_LONG_CONVERT_OVERFLOW 0
+#define FIX_DBL_LONG_CONVERT_OVERFLOW 0
+
+#endif /* fix-fp-int-convert-overflow.h */