[Bug target/46144] New: [4.6 regression] gfortran.dg/vect/fast-math-vect-8.f90

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46144

           Summary: [4.6 regression] gfortran.dg/vect/fast-math-vect-8.f90
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com


On Linux/x86-64, revision 165861 gave

export/gnu/import/svn/gcc-test/src-trunk/gcc/testsuite/gfortran.dg/vect/fast-math-vect-8.f90
  -O2 -ftree-vectorize -fno-vect-cost-model -ftree-vectorizer-verbose=4
-fdump-tree-vect-stats -msse2 -ffast-math -S  -m32 -o fast-math-vect-8.s   
(timeout = 300)
/export/gnu/import/svn/gcc-test/src-trunk/gcc/testsuite/gfortran.dg/vect/fast-math-vect-8.f90:
In function 'init_solve':^M
/export/gnu/import/svn/gcc-test/src-trunk/gcc/testsuite/gfortran.dg/vect/fast-math-vect-8.f90:59:0:
error: insn does not satisfy its constraints:^M
(insn 724 701 702 28 (set (reg:V4SF 25 xmm4 [361])^M
        (xor:V4SF (reg:V4SF 23 xmm2 [orig:229 vect_var_.79 ] [229])^M
            (reg:V4SF 25 xmm4 [361])))
/export/gnu/import/svn/gcc-test/src-trunk/gcc/testsuite/gfortran.dg/vect/fast-math-vect-8.f90:69
1265 {*xorv4sf3}^M
     (nil))^M
/export/gnu/import/svn/gcc-test/src-trunk/gcc/testsuite/gfortran.dg/vect/fast-math-vect-8.f90:59:0:
internal compiler error: in copyprop_hardreg_forward_1, at regcprop.c:768^M
Please submit a full bug report,^M
with preprocessed source if appropriate.^M
See <http://gcc.gnu.org/bugs.html> for instructions.^M

Revision 165848 is OK.