diff options
Diffstat (limited to 'sysdeps/x86_64/fpu')
| -rw-r--r-- | sysdeps/x86_64/fpu/e_expl.S | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/x86_64/fpu/e_expl.S b/sysdeps/x86_64/fpu/e_expl.S index 866bad2c6e..14dd29dcad 100644 --- a/sysdeps/x86_64/fpu/e_expl.S +++ b/sysdeps/x86_64/fpu/e_expl.S @@ -119,6 +119,12 @@ ENTRY(IEEE754_EXPL) normal. */ cmpl $0x0001, %eax jge 2f + /* Force underflow and return the argument, to avoid wrong signs + of zero results from the code below in some rounding modes. */ + fld %st + fmul %st + fstp %st + jmp 2f #else movzwl 8+8(%rsp), %eax andl $0x7fff, %eax |