[PATCH 0/7] Multiple floating-point environment fixes

[Adhemerval Zanella]

Bruno Haible has uncovered multiple issues with floating point
environment functions on multiple platforms.  He already added
gnulib modules to overrides some functions, so some of theses fixes
arealready being used on some projects.

There are still some issues where I am not confortable to fix or
install a patch without proper hardware testing (BZ# 31023 for hppa
and BZ# 30993 for alpha), and there also one that would require a
lot of working since it requires fixing the compiler (BZ# 30973
for sh4).

Adhemerval Zanella (3):
  powerpc: Do not raise exception traps for fesetexcept/fesetexceptflag
    (BZ 30988)
  i686: Do not raise exception traps on fesetexcept (BZ 30989)
  riscv: Fix feenvupdate with FE_DFL_ENV (BZ 31022)

Bruno Haible (4):
  x86: Do not raises floating-point exception traps on fesetexceptflag
    (BZ 30990)
  manual: Clarify undefined behavior of feenableexcept (BZ 31019)
  alpha: Fix fesetexceptflag (BZ 30998)
  hppa: Fix undefined behaviour in feclearexcept (BZ 30983)

 manual/arith.texi                        |   6 ++
 math/test-fenv.c                         | 132 +++++++++++++++++++++--
 math/test-fesetexcept-traps.c            |  37 +++++--
 math/test-fexcept-traps.c                |  33 ++++--
 sysdeps/alpha/fpu/fsetexcptflg.c         |   2 +-
 sysdeps/hppa/fpu/fclrexcpt.c             |   2 +-
 sysdeps/i386/fpu/fesetexcept.c           |  46 +++++++-
 sysdeps/i386/fpu/fsetexcptflg.c          |  63 +++++++----
 sysdeps/i386/fpu/math-tests-trap-force.h |  29 +++++
 sysdeps/powerpc/fpu/fesetexcept.c        |   5 +
 sysdeps/powerpc/fpu/fsetexcptflg.c       |   9 +-
 sysdeps/riscv/rvf/fenv_private.h         |   6 +-
 sysdeps/x86/fpu/test-fenv-sse-2.c        |  23 +---
 sysdeps/x86_64/fpu/fsetexcptflg.c        |  24 +++--
 14 files changed, 332 insertions(+), 85 deletions(-)
 create mode 100644 sysdeps/i386/fpu/math-tests-trap-force.h

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2.34.1