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avoid changing NaNs in sqrt (x86 asm) to satisfy c99 f.9 recommendation
[musl]
/
src
/
math
/
i386
/
sqrt.s
diff --git
a/src/math/i386/sqrt.s
b/src/math/i386/sqrt.s
index
8289d09
..
3315704
100644
(file)
--- a/
src/math/i386/sqrt.s
+++ b/
src/math/i386/sqrt.s
@@
-10,6
+10,10
@@
sqrt: fldl 4(%esp)
and $0x7ff,%ecx
cmp $0x400,%ecx
jnz 1f
+ mov 8(%esp),%ecx
+ or $0xffff8000,%ecx
+ inc %ecx
+ jz 1f
and $0x200,%eax
sub $0x100,%eax
sub %eax,(%esp)