[Bug target/43305] [4.4 Regression] ICE: in emit_unop_insn, at optabs.c:3838 with -Os -ffast-math and ilogbl()

[jakub at gcc dot gnu dot org]

------- Comment #13 from jakub at gcc dot gnu dot org  2010-03-22 15:00 -------
Subject: Bug 43305

Author: jakub
Date: Mon Mar 22 15:00:20 2010
New Revision: 157632

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157632
Log:
        Backport from mainline:
        2010-03-19  Michael Matz  <m...@suse.de>

        PR target/43305
        * builtins.c (expand_builtin_interclass_mathfn,
        expand_builtin_signbit): Use maybe_emit_unop_insn, emit libcalls
        if that fails.

        * gcc.dg/pr43305.c: New testcase.

Added:
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr43305.c
Modified:
    branches/gcc-4_4-branch/gcc/ChangeLog
    branches/gcc-4_4-branch/gcc/builtins.c
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43305