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| author | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-03-12 04:38:52 +0000 |
|---|---|---|
| committer | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-03-12 04:38:52 +0000 |
| commit | a1a3143a5316b2df830e8b96bd516c5ca821b2dc (patch) | |
| tree | 0f756fd91e39303eb8313268ac375a6dd090ec11 /libgo | |
| parent | 3ec6e95b257537e7cd6f927fa2f4149b318c071a (diff) | |
| download | gcc-a1a3143a5316b2df830e8b96bd516c5ca821b2dc.tar.gz | |
libgo: Build math package with -ffp-contract=off on non-x86.
http://golang.org/issue/7074 shows that not using
-ffp-contract=off produces the wrong result for math.Log2(1)
on arm64.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208505 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libgo')
| -rwxr-xr-x | libgo/configure | 2 | ||||
| -rw-r--r-- | libgo/configure.ac | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/libgo/configure b/libgo/configure index c55212042c6..f4b8c104465 100755 --- a/libgo/configure +++ b/libgo/configure @@ -14985,6 +14985,8 @@ $as_echo "$libgo_cv_c_fancymath" >&6; } MATH_FLAG= if test "$libgo_cv_c_fancymath" = yes; then MATH_FLAG="-mfancy-math-387 -funsafe-math-optimizations" +else + MATH_FLAG="-ffp-contract=off" fi diff --git a/libgo/configure.ac b/libgo/configure.ac index 7063e2d162f..4480261a9c9 100644 --- a/libgo/configure.ac +++ b/libgo/configure.ac @@ -620,6 +620,8 @@ CFLAGS=$CFLAGS_hold]) MATH_FLAG= if test "$libgo_cv_c_fancymath" = yes; then MATH_FLAG="-mfancy-math-387 -funsafe-math-optimizations" +else + MATH_FLAG="-ffp-contract=off" fi AC_SUBST(MATH_FLAG) |