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| author | Joseph Myers <joseph@codesourcery.com> | 2014-01-03 20:56:18 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2014-01-03 20:56:40 +0000 |
| commit | 22562bb222a91e0ecc416b19accd98e10c0d26be (patch) | |
| tree | ca6a3b3c34c8f2cce47ba4bcb982bfd4d0c481a1 /sysdeps | |
| parent | 0da43124a9b5c24fe2e877e3d94a4f3d859f0486 (diff) | |
| download | glibc-22562bb222a91e0ecc416b19accd98e10c0d26be.zip glibc-22562bb222a91e0ecc416b19accd98e10c0d26be.tar.gz glibc-22562bb222a91e0ecc416b19accd98e10c0d26be.tar.bz2 | |
Fix soft-float ldbl-128ibm atan2l signs of zero results (bug 16390).
This patch fixes bug 16390, incorrect signs of zero results from
ldbl-128ibm atan2l, soft-float only. The problem is a longstanding
GCC bug with fabsl not being correct for signed zero for soft float,
and the fix is using -fno-builtin-fabsl as a workaround, as already
done for various other source files. Tested powerpc-nofpu.
* sysdeps/powerpc/nofpu/Makefile [$(subdir) = math]
(CFLAGS-e_atan2l.c): Use -fno-builtin-fabsl.
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/powerpc/nofpu/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/powerpc/nofpu/Makefile b/sysdeps/powerpc/nofpu/Makefile index 9de7c43..99761ef 100644 --- a/sysdeps/powerpc/nofpu/Makefile +++ b/sysdeps/powerpc/nofpu/Makefile @@ -15,6 +15,7 @@ CPPFLAGS += -I../soft-fp/ # gcc-4.1.1 and may be too late for gcc-4.2. So we need these flags # until the fix in a gcc release and glibc drops support for earlier # versions of gcc. +CFLAGS-e_atan2l.c += -fno-builtin-fabsl CFLAGS-e_hypotl.c += -fno-builtin-fabsl CFLAGS-e_powl.c += -fno-builtin-fabsl CFLAGS-s_ccoshl.c += -fno-builtin-fabsl |