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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-11-02 11:15:55 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-12-19 15:12:38 -0300 |
| commit | 802aef27b2d9f04b06344706f88d37bbe89629e9 (patch) | |
| tree | 2616f5cafd6a27b72a0d6ed3c0a2725d1620dee7 /sysdeps | |
| parent | e55599e0286655dd5f1f5b48005a17be37cc7f2c (diff) | |
| download | glibc-802aef27b2d9f04b06344706f88d37bbe89629e9.tar glibc-802aef27b2d9f04b06344706f88d37bbe89629e9.tar.gz glibc-802aef27b2d9f04b06344706f88d37bbe89629e9.tar.bz2 glibc-802aef27b2d9f04b06344706f88d37bbe89629e9.zip | |
riscv: Fix feenvupdate with FE_DFL_ENV (BZ 31022)
libc_feupdateenv_riscv should check for FE_DFL_ENV, similar to
libc_fesetenv_riscv.
Also extend the test-fenv.c to test fenvupdate.
Checked on riscv under qemu-system.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/riscv/rvf/fenv_private.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/sysdeps/riscv/rvf/fenv_private.h b/sysdeps/riscv/rvf/fenv_private.h index 40e23661b7..d8d65458b2 100644 --- a/sysdeps/riscv/rvf/fenv_private.h +++ b/sysdeps/riscv/rvf/fenv_private.h @@ -93,10 +93,7 @@ libc_fetestexcept_riscv (int ex) static __always_inline void libc_fesetenv_riscv (const fenv_t *envp) { - long int env = (long int) envp - (long int) FE_DFL_ENV; - if (env != 0) - env = *envp; - + long int env = (envp != FE_DFL_ENV ? *envp : 0); _FPU_SETCW (env); } @@ -123,7 +120,8 @@ libc_feupdateenv_test_riscv (const fenv_t *envp, int ex) static __always_inline void libc_feupdateenv_riscv (const fenv_t *envp) { - _FPU_SETCW (*envp | riscv_getflags ()); + long int env = (envp != FE_DFL_ENV ? *envp : 0); + _FPU_SETCW (env | riscv_getflags ()); } #define libc_feupdateenv libc_feupdateenv_riscv |