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Implement C23 rsqrt

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C23 adds various <math.h> function families originally defined in TS
18661-4.  Add the rsqrt functions (1/sqrt(x)).  The test inputs are
taken from those for sqrt.

Tested for x86_64 and x86, and with build-many-glibcs.py.
This commit is contained in:
Joseph Myers
2025-03-07 19:15:26 +00:00
parent ee3b1d15da
commit 77261698b4
50 changed files with 3865 additions and 2 deletions
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8
sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
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@ -1355,3 +1355,11 @@ GLIBC_2.41 tanpif32x F
GLIBC_2.41 tanpif64 F
GLIBC_2.41 tanpif64x F
GLIBC_2.41 tanpil F
GLIBC_2.42 rsqrt F
GLIBC_2.42 rsqrtf F
GLIBC_2.42 rsqrtf128 F
GLIBC_2.42 rsqrtf32 F
GLIBC_2.42 rsqrtf32x F
GLIBC_2.42 rsqrtf64 F
GLIBC_2.42 rsqrtf64x F
GLIBC_2.42 rsqrtl F

8
sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
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@ -1245,3 +1245,11 @@ GLIBC_2.41 tanpif32x F
GLIBC_2.41 tanpif64 F
GLIBC_2.41 tanpif64x F
GLIBC_2.41 tanpil F
GLIBC_2.42 rsqrt F
GLIBC_2.42 rsqrtf F
GLIBC_2.42 rsqrtf128 F
GLIBC_2.42 rsqrtf32 F
GLIBC_2.42 rsqrtf32x F
GLIBC_2.42 rsqrtf64 F
GLIBC_2.42 rsqrtf64x F
GLIBC_2.42 rsqrtl F