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authorJoseph Myers <joseph@codesourcery.com>2018-09-27 12:35:23 +0000
committerJoseph Myers <joseph@codesourcery.com>2018-09-27 12:35:23 +0000
commit9755bc4686d8cd6a0e9539040b903e9e9291c319 (patch)
tree05d7d23577087ebb8c4d9b8122f604c06b1513d3 /ChangeLog
parentf841c97e515a1673485a2b12b3c280073d737890 (diff)
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Use round functions not __round functions in glibc libm.
Continuing the move to use, within libm, public names for libm functions that can be inlined as built-in functions on many architectures, this patch moves calls to __round functions to call the corresponding round names instead, with asm redirection to __round when the calls are not inlined. An additional complication arises in sysdeps/ieee754/ldbl-128ibm/e_expl.c, where a call to roundl, with the result converted to int, gets converted by the compiler to call lroundl in the case of 32-bit long, so resulting in localplt test failures. It's logically correct to let the compiler make such an optimization; an appropriate asm redirection of lroundl to __lroundl is thus added to that file (it's not needed anywhere else). Tested for x86_64, and with build-many-glibcs.py. * include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (round): Redirect using MATH_REDIRECT. * sysdeps/aarch64/fpu/s_round.c: Define NO_MATH_REDIRECT before header inclusion. * sysdeps/aarch64/fpu/s_roundf.c: Likewise. * sysdeps/ieee754/dbl-64/s_round.c: Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_round.c: Likewise. * sysdeps/ieee754/float128/s_roundf128.c: Likewise. * sysdeps/ieee754/flt-32/s_roundf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_roundl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_roundl.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_round.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_roundf.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_round.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_roundf.c: Likewise. * sysdeps/riscv/rv64/rvd/s_round.c: Likewise. * sysdeps/riscv/rvf/s_roundf.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_roundl.c: Likewise. (round): Redirect to __round. (__roundl): Call round instead of __round. * sysdeps/powerpc/fpu/math_private.h [_ARCH_PWR5X] (__round): Remove macro. [_ARCH_PWR5X] (__roundf): Likewise. * sysdeps/ieee754/dbl-64/e_gamma_r.c (gamma_positive): Use round functions instead of __round variants. * sysdeps/ieee754/flt-32/e_gammaf_r.c (gammaf_positive): Likewise. * sysdeps/ieee754/ldbl-128/e_gammal_r.c (gammal_positive): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (gammal_positive): Likewise. * sysdeps/ieee754/ldbl-96/e_gammal_r.c (gammal_positive): Likewise. * sysdeps/x86/fpu/powl_helper.c (__powl_helper): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_expl.c (lroundl): Redirect to __lroundl. (__ieee754_expl): Call roundl instead of __roundl.
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+2018-09-27 Joseph Myers <joseph@codesourcery.com>
+
+ * include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ &&
+ __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (round): Redirect
+ using MATH_REDIRECT.
+ * sysdeps/aarch64/fpu/s_round.c: Define NO_MATH_REDIRECT before
+ header inclusion.
+ * sysdeps/aarch64/fpu/s_roundf.c: Likewise.
+ * sysdeps/ieee754/dbl-64/s_round.c: Likewise.
+ * sysdeps/ieee754/dbl-64/wordsize-64/s_round.c: Likewise.
+ * sysdeps/ieee754/float128/s_roundf128.c: Likewise.
+ * sysdeps/ieee754/flt-32/s_roundf.c: Likewise.
+ * sysdeps/ieee754/ldbl-128/s_roundl.c: Likewise.
+ * sysdeps/ieee754/ldbl-96/s_roundl.c: Likewise.
+ * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_round.c: Likewise.
+ * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_roundf.c: Likewise.
+ * sysdeps/powerpc/powerpc64/fpu/multiarch/s_round.c: Likewise.
+ * sysdeps/powerpc/powerpc64/fpu/multiarch/s_roundf.c: Likewise.
+ * sysdeps/riscv/rv64/rvd/s_round.c: Likewise.
+ * sysdeps/riscv/rvf/s_roundf.c: Likewise.
+ * sysdeps/ieee754/ldbl-128ibm/s_roundl.c: Likewise.
+ (round): Redirect to __round.
+ (__roundl): Call round instead of __round.
+ * sysdeps/powerpc/fpu/math_private.h [_ARCH_PWR5X] (__round):
+ Remove macro.
+ [_ARCH_PWR5X] (__roundf): Likewise.
+ * sysdeps/ieee754/dbl-64/e_gamma_r.c (gamma_positive): Use round
+ functions instead of __round variants.
+ * sysdeps/ieee754/flt-32/e_gammaf_r.c (gammaf_positive): Likewise.
+ * sysdeps/ieee754/ldbl-128/e_gammal_r.c (gammal_positive):
+ Likewise.
+ * sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (gammal_positive):
+ Likewise.
+ * sysdeps/ieee754/ldbl-96/e_gammal_r.c (gammal_positive):
+ Likewise.
+ * sysdeps/x86/fpu/powl_helper.c (__powl_helper): Likewise.
+ * sysdeps/ieee754/ldbl-128ibm/e_expl.c (lroundl): Redirect to
+ __lroundl.
+ (__ieee754_expl): Call roundl instead of __roundl.
+
2018-09-27 Andreas Schwab <schwab@suse.de>
[BZ #23717]