http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49714
Summary: [4.7 Regression] Revision 176128 introduced many ICEs
in insn_default_length, at config/i386/i386.md:600
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: domi...@lps.ens.fr
CC: r...@gcc.gnu.org, ia...@gcc.gnu.org
Host: x86_64-apple-darwin10
Target: x86_64-apple-darwin10
Build: x86_64-apple-darwin10
On x86_64-apple-darwin10, revision 176128 introduced a lot of failures in the
test suite of the kind:
[macbook] f90/bug% /opt/gcc/gcc4.7p/bin/g++
/opt/gcc/work/gcc/testsuite/g++.old-deja/g++.other/dyncast1.C
/opt/gcc/work/gcc/testsuite/g++.old-deja/g++.other/dyncast1.C: In member
function 'void E::_ZThn8_N1ED1Ev()':
/opt/gcc/work/gcc/testsuite/g++.old-deja/g++.other/dyncast1.C:123:1: error:
unrecognizable insn:
(jump_insn 3 2 4 (set (pc)
(mem:QI (const:DI (unspec:DI [
(symbol_ref/i:DI ("_ZN1ED1Ev") [flags 0x1]
<function_decl 0x1428b7400 __comp_dtor >)
] UNSPEC_GOTPCREL)) [0 S1 A8])) -1
(nil))
/opt/gcc/work/gcc/testsuite/g++.old-deja/g++.other/dyncast1.C:123:1: internal
compiler error: in insn_default_length, at config/i386/i386.md:600
