diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2021-12-20 15:00:24 -0800 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2023-01-11 15:13:10 +0100 |
| commit | 80b24b86548eee3d96130a48e760d1d6c2e0c587 (patch) | |
| tree | bb3f7c0a50bb5ab9ddaa4e7524604d5eeac34b6c | |
| parent | dd0c72fb461a8879164588cd870702efae0c7237 (diff) | |
| download | glibc-80b24b86548eee3d96130a48e760d1d6c2e0c587.tar.gz glibc-80b24b86548eee3d96130a48e760d1d6c2e0c587.tar.xz glibc-80b24b86548eee3d96130a48e760d1d6c2e0c587.zip | |
math: Properly cast X_TLOSS to float [BZ #28713]
Add #define AS_FLOAT_CONSTANT_1(x) x##f #define AS_FLOAT_CONSTANT(x) AS_FLOAT_CONSTANT_1(x) to cast X_TLOSS to float at compile-time to fix: FAIL: math/test-float-j0 FAIL: math/test-float-jn FAIL: math/test-float-y0 FAIL: math/test-float-y1 FAIL: math/test-float-yn FAIL: math/test-float32-j0 FAIL: math/test-float32-jn FAIL: math/test-float32-y0 FAIL: math/test-float32-y1 FAIL: math/test-float32-yn when compiling with GCC 12. Reviewed-by: Paul Zimmermann <Paul.Zimmermann@inria.fr> (cherry picked from commit 6e30181b4a3ab6c56da0378b65f4d60504982300)
| -rw-r--r-- | math/math-svid-compat.h | 2 | ||||
| -rw-r--r-- | math/w_j0f_compat.c | 5 | ||||
| -rw-r--r-- | math/w_j1f_compat.c | 5 | ||||
| -rw-r--r-- | math/w_jnf_compat.c | 5 |
4 files changed, 11 insertions, 6 deletions
diff --git a/math/math-svid-compat.h b/math/math-svid-compat.h index 5c18cb1b03..876cadde40 100644 --- a/math/math-svid-compat.h +++ b/math/math-svid-compat.h @@ -49,6 +49,8 @@ extern int matherr (struct exception *__exc); extern int __matherr (struct exception *__exc); #define X_TLOSS 1.41484755040568800000e+16 +#define AS_FLOAT_CONSTANT_1(x) x##f +#define AS_FLOAT_CONSTANT(x) AS_FLOAT_CONSTANT_1(x) /* Types of exceptions in the `type' field. */ #define DOMAIN 1 diff --git a/math/w_j0f_compat.c b/math/w_j0f_compat.c index a4882eadb3..f35a55219f 100644 --- a/math/w_j0f_compat.c +++ b/math/w_j0f_compat.c @@ -28,7 +28,8 @@ float __j0f (float x) { - if (__builtin_expect (isgreater (fabsf (x), (float) X_TLOSS), 0) + if (__builtin_expect (isgreater (fabsf (x), + AS_FLOAT_CONSTANT (X_TLOSS)), 0) && _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_) /* j0(|x|>X_TLOSS) */ return __kernel_standard_f (x, x, 134); @@ -43,7 +44,7 @@ float __y0f (float x) { if (__builtin_expect (islessequal (x, 0.0f) - || isgreater (x, (float) X_TLOSS), 0) + || isgreater (x, AS_FLOAT_CONSTANT (X_TLOSS)), 0) && _LIB_VERSION != _IEEE_) { if (x < 0.0f) diff --git a/math/w_j1f_compat.c b/math/w_j1f_compat.c index f2ec7b327d..c5e3ccd035 100644 --- a/math/w_j1f_compat.c +++ b/math/w_j1f_compat.c @@ -28,7 +28,8 @@ float __j1f (float x) { - if (__builtin_expect (isgreater (fabsf (x), X_TLOSS), 0) + if (__builtin_expect (isgreater (fabsf (x), + AS_FLOAT_CONSTANT (X_TLOSS)), 0) && _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_) /* j1(|x|>X_TLOSS) */ return __kernel_standard_f (x, x, 136); @@ -43,7 +44,7 @@ float __y1f (float x) { if (__builtin_expect (islessequal (x, 0.0f) - || isgreater (x, (float) X_TLOSS), 0) + || isgreater (x, AS_FLOAT_CONSTANT (X_TLOSS)), 0) && _LIB_VERSION != _IEEE_) { if (x < 0.0f) diff --git a/math/w_jnf_compat.c b/math/w_jnf_compat.c index fb6e506009..925ccc4cd0 100644 --- a/math/w_jnf_compat.c +++ b/math/w_jnf_compat.c @@ -28,7 +28,8 @@ float __jnf (int n, float x) { - if (__builtin_expect (isgreater (fabsf (x), (float) X_TLOSS), 0) + if (__builtin_expect (isgreater (fabsf (x), + AS_FLOAT_CONSTANT (X_TLOSS)), 0) && _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_) /* jn(n,|x|>X_TLOSS) */ return __kernel_standard_f (n, x, 138); @@ -43,7 +44,7 @@ float __ynf (int n, float x) { if (__builtin_expect (islessequal (x, 0.0f) - || isgreater (x, (float) X_TLOSS), 0) + || isgreater (x, AS_FLOAT_CONSTANT (X_TLOSS)), 0) && _LIB_VERSION != _IEEE_) { if (x < 0.0f) |