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| author | Rich Felker <dalias@aerifal.cx> | 2012-03-15 01:55:54 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-03-15 01:55:54 -0400 |
| commit | 46702f68f98244f7384d6ac1742a452f0d7a2610 (patch) | |
| tree | a1de64f25ddc30af458711c70f46efd6a3bf6f8f | |
| parent | 809556e60a3359f646946879dd94c4760e5b8e84 (diff) | |
| download | musl-46702f68f98244f7384d6ac1742a452f0d7a2610.tar.gz musl-46702f68f98244f7384d6ac1742a452f0d7a2610.tar.xz musl-46702f68f98244f7384d6ac1742a452f0d7a2610.zip | |
avoid changing NaNs in sqrt (x86 asm) to satisfy c99 f.9 recommendation
| -rw-r--r-- | src/math/i386/sqrt.s | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/math/i386/sqrt.s b/src/math/i386/sqrt.s index 8289d094..33157044 100644 --- 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) |