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author | Joseph Myers <josmyers@redhat.com> | 2024-06-17 13:47:09 +0000 |
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committer | Joseph Myers <josmyers@redhat.com> | 2024-06-17 13:47:09 +0000 |
commit | bb014f50c4a0c8d8db1ba5af55c104e430b5533d (patch) | |
tree | a1ca91748bb999691442701c3b786ebc3372114f /sysdeps/powerpc/powerpc64/le/fpu/multiarch | |
parent | ca38eff28015f376c020b4dfad5351e45be8d090 (diff) | |
download | glibc-bb014f50c4a0c8d8db1ba5af55c104e430b5533d.tar.gz glibc-bb014f50c4a0c8d8db1ba5af55c104e430b5533d.tar.xz glibc-bb014f50c4a0c8d8db1ba5af55c104e430b5533d.zip |
Implement C23 logp1
C23 adds various <math.h> function families originally defined in TS 18661-4. Add the logp1 functions (aliases for log1p functions - the name is intended to be more consistent with the new log2p1 and log10p1, where clearly it would have been very confusing to name those functions log21p and log101p). As aliases rather than new functions, the content of this patch is somewhat different from those actually adding new functions. Tests are shared with log1p, so this patch *does* mechanically update all affected libm-test-ulps files to expect the same errors for both functions. The vector versions of log1p on aarch64 and x86_64 are *not* updated to have logp1 aliases (and thus there are no corresponding header, tests, abilist or ulps changes for vector functions either). It would be reasonable for such vector aliases and corresponding changes to other files to be made separately. For now, the log1p tests instead avoid testing logp1 in the vector case (a Makefile change is needed to avoid problems with grep, used in generating the .c files for vector function tests, matching more than one ALL_RM_TEST line in a file testing multiple functions with the same inputs, when it assumes that the .inc file only has a single such line). Tested for x86_64 and x86, and with build-many-glibcs.py.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/le/fpu/multiarch')
4 files changed, 10 insertions, 2 deletions
diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile index b59c4b21ba..43d9e5fa13 100644 --- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile @@ -295,7 +295,7 @@ CFLAGS-s_llrintf128-ifunc.c += -fno-builtin-llrintf64x CFLAGS-s_llroundf128-ifunc.c += -fno-builtin-llroundf64x CFLAGS-e_logf128-ifunc.c += -fno-builtin-logf64x CFLAGS-w_log10f128-ifunc.c += -fno-builtin-log10f64x -CFLAGS-w_log1pf128-ifunc.c += -fno-builtin-log1pf64x +CFLAGS-w_log1pf128-ifunc.c += -fno-builtin-log1pf64x -fno-builtin-logp1f64x CFLAGS-e_log2f128-ifunc.c += -fno-builtin-log2f64x CFLAGS-s_logbf128-ifunc.c += -fno-builtin-logbf64x CFLAGS-s_lrintf128-ifunc.c += -fno-builtin-lrintf64x diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-redirects.h b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-redirects.h index 40df525ea5..155aabc4b0 100644 --- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-redirects.h +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc-redirects.h @@ -33,6 +33,10 @@ extern __typeof (ldexpf128) F128_SFX_APPEND (__ldexpf128); #define __ldexpf128 F128_SFX_APPEND (__ldexpf128) +extern __typeof (log1pf128) F128_SFX_APPEND (__w_log1pf128); + +#define __w_log1pf128 F128_SFX_APPEND (__w_log1pf128) + /* libm_hidden_proto is disabled by the time we reach here. Ensure some internally called functions are still called without going through the PLT. Note, this code is only diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc.h b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc.h index ce337e4257..f235f824ae 100644 --- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc.h +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/float128-ifunc.h @@ -138,7 +138,9 @@ /* Ensure the wrapper functions get exposed via IFUNC, not the wrappee (e.g __w_log1pf128_power8 instead of __log1pf128_power8. */ -#define DECL_ALIAS_w_log1p(x) MAKE_IFUNCP_WRAP_R(w_,x,) +#define DECL_ALIAS_w_log1p(x) \ + MAKE_IFUNCP_WRAP_R (w_, x, ) \ + MAKE_IFUNCP_WRAP_R (w_, logp1, ) #define DECL_ALIAS_w_scalbln(x) MAKE_IFUNCP_WRAP_R(w_,x,) /* These are declared in their respective jX objects. */ diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/math-type-macros-float128.h b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/math-type-macros-float128.h index 790d9743f8..0506db0855 100644 --- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/math-type-macros-float128.h +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/math-type-macros-float128.h @@ -106,11 +106,13 @@ F128_REDIR (__remainderf128); extern _Float128 __wrap_scalbnf128 (_Float128, int); extern _Float128 __w_scalblnf128 (_Float128, long int); extern _Float128 __w_log1pf128 (_Float128); +extern _Float128 __w_logp1f128 (_Float128); extern _Float128 __scalbf128 (_Float128, _Float128); F128_REDIR (__scalbf128); F128_REDIR (__wrap_scalbnf128); F128_REDIR (__w_scalblnf128); F128_REDIR (__w_log1pf128); +F128_REDIR (__w_logp1f128); /* Include the redirects shared with math_private.h users. */ #include <float128-ifunc-redirects.h> |