+2018-01-09 Joseph Myers <joseph@codesourcery.com>
+
+ [BZ #22687]
+ * sysdeps/powerpc/nofpu/Makefile (CFLAGS-s_cacosl.c): New
+ variable.
+ (CFLAGS-s_cacoshl.c): Likewise.
+ (CFLAGS-s_casinhl.c): Likewise.
+ (CFLAGS-s_catanl.c): Likewise.
+ (CFLAGS-s_catanhl.c): Likewise.
+ (CFLAGS-s_cexpl.c): Likewise.
+ (CFLAGS-s_ccoshl.c): Add -fsignaling-nans.
+ (CFLAGS-s_csinhl.c): Likewise.
+ (CFLAGS-s_clogl.c): Likewise.
+ (CFLAGS-s_clog10l.c): Likewise.
+ (CFLAGS-s_csinl.c): Likewise.
+ (CFLAGS-s_csqrtl.c): Likewise.
+
2010-08-04 Emilio Pozuelo Monfort <pochu27@gmail.com>
2017-09-26 Svante Signell <svante.signell@gmail.com>
# 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.
+#
+# This bug can cause wrong signs of zero results from fabsl, and
+# spurious "invalid" exceptions from comparisons with NaN in the
+# default code sequence generated. The fpclassify expansion used by
+# __builtin_fpclassify, which is used in the absence of
+# -fsignaling-nans, uses __builtin_fabsl, and is not affected by
+# -fno-builtin-fabsl, so requiring -fsignaling-nans for some affected
+# source files.
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
-CFLAGS-s_csinhl.c += -fno-builtin-fabsl
-CFLAGS-s_clogl.c += -fno-builtin-fabsl
-CFLAGS-s_clog10l.c += -fno-builtin-fabsl
-CFLAGS-s_csinl.c += -fno-builtin-fabsl
-CFLAGS-s_csqrtl.c += -fno-builtin-fabsl
+CFLAGS-s_cacosl.c += -fsignaling-nans
+CFLAGS-s_cacoshl.c += -fsignaling-nans
+CFLAGS-s_casinhl.c += -fsignaling-nans
+CFLAGS-s_catanl.c += -fsignaling-nans
+CFLAGS-s_catanhl.c += -fsignaling-nans
+CFLAGS-s_ccoshl.c += -fno-builtin-fabsl -fsignaling-nans
+CFLAGS-s_cexpl.c += -fsignaling-nans
+CFLAGS-s_csinhl.c += -fno-builtin-fabsl -fsignaling-nans
+CFLAGS-s_clogl.c += -fno-builtin-fabsl -fsignaling-nans
+CFLAGS-s_clog10l.c += -fno-builtin-fabsl -fsignaling-nans
+CFLAGS-s_csinl.c += -fno-builtin-fabsl -fsignaling-nans
+CFLAGS-s_csqrtl.c += -fno-builtin-fabsl -fsignaling-nans
CFLAGS-w_acosl_compat.c += -fno-builtin-fabsl
CFLAGS-w_asinl_compat.c += -fno-builtin-fabsl
CFLAGS-w_atanhl_compat.c += -fno-builtin-fabsl