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Diffstat (limited to 'sysdeps/i386/fpu/e_powf.S')
-rw-r--r--sysdeps/i386/fpu/e_powf.S5
1 files changed, 4 insertions, 1 deletions
diff --git a/sysdeps/i386/fpu/e_powf.S b/sysdeps/i386/fpu/e_powf.S
index 7fad90f6cb..90d3d0ca6a 100644
--- a/sysdeps/i386/fpu/e_powf.S
+++ b/sysdeps/i386/fpu/e_powf.S
@@ -95,6 +95,9 @@ ENTRY(__ieee754_powf)
cmpb $0x05, %ah
je 15f // x is ħinf
+ cmpb $0x01, %ah
+ je 32f // x is NaN
+
fxch // y : x
/* fistpl raises invalid exception for |y| >= 1L<<31. */
@@ -180,7 +183,7 @@ ENTRY(__ieee754_powf)
f2xm1 // 2^fract(y*log2(x))-1 : int(y*log2(x))
faddl MO(one) // 2^fract(y*log2(x)) : int(y*log2(x))
fscale // 2^fract(y*log2(x))*2^int(y*log2(x)) : int(y*log2(x))
- addl $4, %esp
+32: addl $4, %esp
cfi_adjust_cfa_offset (-4)
fstp %st(1) // 2^fract(y*log2(x))*2^int(y*log2(x))
ret