mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
8c6c923636
The i386 versions of acoshf and acosh raise a spurious "invalid" exception for an argument that is a quiet NaN with the sign bit set. The integer arithmetic to detect arguments < 1 also detects -NaN, and then the computation 0 / 0 in that case raises the exception. This patch fixes this by using (x - x) / (x - x) as the computation in that case instead, which will always raise the exception for non-NaN arguments reaching that code, but not for quiet NaN arguments. Tested for x86_64 and x86. [BZ #19032] * sysdeps/i386/fpu/e_acosh.S (__ieee754_acosh): For arguments < 1, compute result as (x - x) / (x - x) not as 0 / 0. * sysdeps/i386/fpu/e_acoshf.S (__ieee754_acoshf): Likewise. * math/libm-test.inc (acosh_test_data): Add another test of acosh. |
||
|---|---|---|
| .. | ||
| fpu | ||
| i586 | ||
| i686 | ||
| i786 | ||
| nptl | ||
| sys | ||
| ____longjmp_chk.S | ||
| __longjmp.S | ||
| abort-instr.h | ||
| add_n.S | ||
| addmul_1.S | ||
| asm-syntax.h | ||
| atomic-machine.h | ||
| backtrace.c | ||
| bcopy.S | ||
| bsd-_setjmp.S | ||
| bsd-setjmp.S | ||
| bzero.S | ||
| cacheinfo.c | ||
| configure | ||
| configure.ac | ||
| crti.S | ||
| crtn.S | ||
| dl-irel.h | ||
| dl-lookupcfg.h | ||
| dl-machine.h | ||
| dl-procinfo.c | ||
| dl-procinfo.h | ||
| dl-tls.h | ||
| dl-tlsdesc.h | ||
| dl-tlsdesc.S | ||
| dl-trampoline.S | ||
| ffs.c | ||
| gccframe.h | ||
| gmp-mparam.h | ||
| htonl.S | ||
| htons.S | ||
| i386-mcount.S | ||
| Implies | ||
| init-arch.h | ||
| jmpbuf-offsets.h | ||
| jmpbuf-unwind.h | ||
| ldbl2mpn.c | ||
| ldsodefs.h | ||
| link-defines.sym | ||
| lshift.S | ||
| machine-gmon.h | ||
| Makefile | ||
| memchr.S | ||
| memcmp.S | ||
| memcopy.h | ||
| memcpy_chk.S | ||
| memcpy.S | ||
| memmove_chk.S | ||
| memmove.S | ||
| mempcpy_chk.S | ||
| mempcpy.S | ||
| memset_chk.S | ||
| memset.S | ||
| memusage.h | ||
| mp_clz_tab.c | ||
| mul_1.S | ||
| preconfigure | ||
| pthread_spin_trylock.S | ||
| rawmemchr.S | ||
| rshift.S | ||
| setfpucw.c | ||
| setjmp.S | ||
| stackguard-macros.h | ||
| stackinfo.h | ||
| start.S | ||
| stpcpy.S | ||
| stpncpy.S | ||
| strcat.S | ||
| strchr.S | ||
| strchrnul.S | ||
| strcspn.S | ||
| string-inlines.c | ||
| strlen.c | ||
| strlen.S | ||
| strpbrk.S | ||
| strrchr.S | ||
| strspn.S | ||
| strtok_r.S | ||
| strtok.S | ||
| sub_n.S | ||
| submul_1.S | ||
| sysdep.h | ||
| tls-macros.h | ||
| tlsdesc.c | ||
| tlsdesc.sym | ||
| tst-audit3.c | ||
| tst-audit3.h | ||
| tst-audit.h | ||
| tst-auditmod3a.c | ||
| tst-auditmod3b.c | ||
| tst-ld-sse-use.sh | ||
| tst-stack-align.h | ||
| Versions | ||