http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48371
Summary: [4.7 Regression] bootstrap failure
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: hjl.to...@gmail.com
On Linux/x86, revision171734 failed to bootstrap:
http://gcc.gnu.org/ml/gcc-regression/2011-03/msg00594.html
http://gcc.gnu.org/ml/gcc-regression/2011-03/msg00595.html
../../src-trunk/libiberty/floatformat.c: In function 'floatformat_from_double':
../../src-trunk/libiberty/floatformat.c:699:1: error: insn does not satisfy its
constraints:
(insn 159 157 278 17 (parallel [
(set (reg:SI 21 xmm0)
(unsigned_fix:SI (reg/v:DF 22 xmm1 [orig:102 mant ] [102])))
(use (reg:V2DF 179))
(clobber (reg:V2DF 23 xmm2))
(clobber (reg:V2DF 24 xmm3))
]) ../../src-trunk/libiberty/floatformat.c:675 115 {*fixuns_truncdf_1}
(expr_list:REG_EQUAL (unsigned_fix:SI (reg/v:DF 22 xmm1 [orig:102 mant ]
[102]))
(nil)))
../../src-trunk/libiberty/floatformat.c:699:1: internal compiler error: in
reload_cse_simplify_operands, at postreload.c:403
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Revision 171729 is OK.
