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| author | Joseph Myers <joseph@codesourcery.com> | 2015-10-28 18:50:20 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-10-28 18:50:20 +0000 |
| commit | 0b9af583a5c2d68085e88cece13952bf05dc4882 (patch) | |
| tree | efc4a66a9b018447c371749d91cf8a5b8508754f /math/Makefile | |
| parent | eae6c382bdca2e7ac582a69d56c9c228b678ee67 (diff) | |
| download | glibc-0b9af583a5c2d68085e88cece13952bf05dc4882.tar.gz glibc-0b9af583a5c2d68085e88cece13952bf05dc4882.tar.xz glibc-0b9af583a5c2d68085e88cece13952bf05dc4882.zip | |
Fix i386/x86_64 fesetenv SSE exception clearing (bug 19181).
The i386 and x86_64 versions of fesetenv, when called with FE_DFL_ENV or FE_NOMASK_ENV as argument, do not clear SSE exceptions raised in MXCSR. These arguments should, like other fenv_t values, represent the whole of the floating-point state, so such exceptions should be cleared; this patch adds the required clearing. (Discovered while working on bug 16068.) Tested for x86_64 and x86. [BZ #19181] * sysdeps/i386/fpu/fesetenv.c (__fesetenv): Clear already-raised SSE exceptions when argument is FE_DFL_ENV or FE_NOMASK_ENV. * sysdeps/x86_64/fpu/fesetenv.c (__fesetenv): Likewise. * math/test-fenv-clear-main.c: New file. * math/test-fenv-clear.c: Likewise. * math/Makefile (tests): Add test-fenv-clear. * sysdeps/x86/fpu/test-fenv-clear-sse.c: New file. * sysdeps/x86/fpu/Makefile [$(subdir) = math] (tests): Add test-fenv-clear-sse. [$(subdir) = math] (CFLAGS-test-fenv-clear-sse.c): New variable.
Diffstat (limited to 'math/Makefile')
| -rw-r--r-- | math/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/math/Makefile b/math/Makefile index 97004f956b..dedd7ee5ea 100644 --- a/math/Makefile +++ b/math/Makefile @@ -108,7 +108,7 @@ tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \ test-tgmath-ret bug-nextafter bug-nexttoward bug-tgmath1 \ test-tgmath-int test-tgmath2 test-powl tst-CMPLX tst-CMPLX2 test-snan \ test-fenv-tls test-fenv-preserve test-fenv-return test-fenvinline \ - test-nearbyint-except $(tests-static) + test-nearbyint-except test-fenv-clear $(tests-static) tests-static = test-fpucw-static test-fpucw-ieee-static # We do the `long double' tests only if this data type is available and # distinct from `double'. |