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authorH.J. Lu <hjl.tools@gmail.com>2021-12-20 14:37:26 -0800
committerFlorian Weimer <fweimer@redhat.com>2023-01-11 15:29:37 +0100
commitc5c666f34939d4bbf73aac8b753ab39621ebf33c (patch)
tree47830265a76ab5ee0c44c2c75d8ce3525c8c82ba
parent80b24b86548eee3d96130a48e760d1d6c2e0c587 (diff)
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s_sincosf.h: Change pio4 type to float [BZ #28713]
s_cosf.c and s_sinf.c have

  if (abstop12 (y) < abstop12 (pio4))

where abstop12 takes a float argument, but pio4 is static const double.
pio4 is used only in calls to abstop12 and never in arithmetic.  Apply

-static const double pio4 = 0x1.921FB54442D18p-1;
+static const float pio4 = 0x1.921FB6p-1f;

to fix:

FAIL: math/test-float-cos
FAIL: math/test-float-sin
FAIL: math/test-float-sincos
FAIL: math/test-float32-cos
FAIL: math/test-float32-sin
FAIL: math/test-float32-sincos

when compiling with GCC 12.

Reviewed-by: Paul Zimmermann <Paul.Zimmermann@inria.fr>
(cherry picked from commit d3e4f5a1014db09ff1c62c6506f92cba469e193d)
-rw-r--r--sysdeps/ieee754/flt-32/s_sincosf.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/ieee754/flt-32/s_sincosf.h b/sysdeps/ieee754/flt-32/s_sincosf.h
index 125ab7f846..372d8542c2 100644
--- a/sysdeps/ieee754/flt-32/s_sincosf.h
+++ b/sysdeps/ieee754/flt-32/s_sincosf.h
@@ -24,7 +24,7 @@
 /* 2PI * 2^-64.  */
 static const double pi63 = 0x1.921FB54442D18p-62;
 /* PI / 4.  */
-static const double pio4 = 0x1.921FB54442D18p-1;
+static const float pio4 = 0x1.921FB6p-1f;
 
 /* Polynomial data (the cosine polynomial is negated in the 2nd entry).  */
 extern const sincos_t __sincosf_table[2] attribute_hidden;