From 25be91ac7e13ce5c2de638b8a5a0c4190e5cb0bf Mon Sep 17 00:00:00 2001 From: Kyrylo Tkachov Date: Thu, 24 Jul 2014 13:23:05 +0000 Subject: [PATCH] PR 61876: Do not convert cast + __builtin_round into __builtin_lround unless -fno-math-errno is used. PR middle-end/61876 * convert.c (convert_to_integer): Do not convert BUILT_IN_ROUND and cast when flag_errno_math is on. From-SVN: r212989 --- gcc/ChangeLog | 6 ++++++ gcc/convert.c | 4 ++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 04c51e40e84..96a8161787d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2014-07-24 Kyrylo Tkachov + + PR middle-end/61876 + * convert.c (convert_to_integer): Do not convert BUILT_IN_ROUND and cast + when flag_errno_math is on. + 2014-07-24 Martin Liska * cgraph.h (varpool_node): diff --git a/gcc/convert.c b/gcc/convert.c index 09bc555ee0e..8dbf3cb0797 100644 --- a/gcc/convert.c +++ b/gcc/convert.c @@ -456,8 +456,8 @@ convert_to_integer (tree type, tree expr) break; CASE_FLT_FN (BUILT_IN_ROUND): - /* Only convert in ISO C99 mode. */ - if (!targetm.libc_has_function (function_c99_misc)) + /* Only convert in ISO C99 mode and with -fno-math-errno. */ + if (!targetm.libc_has_function (function_c99_misc) || flag_errno_math) break; if (outprec < TYPE_PRECISION (integer_type_node) || (outprec == TYPE_PRECISION (integer_type_node)