[Bug tree-optimization/61375] [4.10 Regression] ICE in int_cst_value at -O3 in tree-ssa pass when compiling a reference to an __int128 value

[thopre01 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61375

--- Comment #2 from thopre01 at gcc dot gnu.org ---
Author: thopre01
Date: Fri Aug  1 08:56:17 2014
New Revision: 213426

URL: https://gcc.gnu.org/viewcvs?rev=213426&root=gcc&view=rev
Log:
2014-08-01  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    Backport from mainline
    2014-06-13  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    PR tree-optimization/61375
    * tree-ssa-math-opts.c (find_bswap_or_nop_1): Cancel optimization if
      symbolic number cannot be represented in an unsigned HOST_WIDE_INT.
    (execute_optimize_bswap): Cancel optimization if CHAR_BIT != 8.

    gcc/testsuite/
    PR tree-optimization/61375
    * gcc.c-torture/execute/pr61375-1.c: New test.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.c-torture/execute/pr61375.c
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_8-branch/gcc/tree-ssa-math-opts.c