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Subject: [Bug middle-end/103735] [12 Regression] Extra glibc "make check"
 failures by r12-4764
Date: Thu, 16 Dec 2021 18:15:56 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103735

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[12 Regression] Extra glibc |[12 Regression] Extra glibc
                   |"make check" failures       |"make check" failures by
                   |                            |r12-4764
                 CC|                            |rguenth at gcc dot gnu.org

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
FAIL: math/test-float32-yn

is caused by

a84b9d5373c7e67fd0ab2a412c22162cdf969c91 is the first bad commit
commit a84b9d5373c7e67fd0ab2a412c22162cdf969c91
Author: Richard Biener <rguenther@suse.de>
Date:   Wed Oct 27 14:27:40 2021 +0200

    middle-end/57245 - honor -frounding-math in real truncation

    The following honors -frounding-math when converting a FP constant
    to another FP type.

    2021-10-27  Richard Biener  <rguenther@suse.de>

            PR middle-end/57245
            * fold-const.c (fold_convert_const_real_from_real): Honor
            -frounding-math if the conversion is not exact.
            * simplify-rtx.c (simplify_const_unary_operation): Do not
            simplify FLOAT_TRUNCATE with sign dependent rounding.

            * gcc.dg/torture/fp-double-convert-float-1.c: New testcase.=