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fix fesetenv(FE_DFL_ENV) on mips
[musl]
/
src
/
math
/
i386
/
atanf.s
diff --git
a/src/math/i386/atanf.s
b/src/math/i386/atanf.s
index
3cd4023
..
8caddef
100644
(file)
--- a/
src/math/i386/atanf.s
+++ b/
src/math/i386/atanf.s
@@
-2,6
+2,18
@@
.type atanf,@function
atanf:
flds 4(%esp)
.type atanf,@function
atanf:
flds 4(%esp)
+ mov 4(%esp),%eax
+ add %eax,%eax
+ cmp $0x01000000,%eax
+ jb 1f
fld1
fpatan
ret
fld1
fpatan
ret
+ # subnormal x, return x with underflow
+1: fnstsw %ax
+ and $16,%ax
+ jnz 2f
+ fld %st(0)
+ fmul %st(1)
+ fstps 4(%esp)
+2: ret