seen with current 4.4 branch on ia64-linux, not on the trunk and 4.3. goes away
removing -fno-strict-aliasing, or setting the optimization to -Os or -O1:
$ g++ -c -g -O2 -fno-strict-aliasing SerializedScriptValue.ii
bindings/js/SerializedScriptValue.cpp: In function 'typename
TreeWalker::OutputType WebCore::walk(TreeWalker&, typename
TreeWalker::InputType) [with TreeWalker = WebCore::SerializingTreeWalker]':
bindings/js/SerializedScriptValue.cpp:343: error: could not split insn
(call_insn 4851 19696 19697 347 ../JavaScriptCore/wtf/Vector.h:284 (parallel [
(call (mem:DI (const_int 0 [0x0]) [0 S8 A64])
(const_int 1 [0x1]))
(clobber (reg:DI 320 b0))
(clobber (scratch:DI))
(clobber (scratch:DI))
]) 354 {call_gp} (expr_list:REG_DEAD (reg:DI 1 r1)
(expr_list:REG_EH_REGION (const_int 124 [0x7c])
(nil)))
(expr_list:REG_DEP_TRUE (use (reg:DI 1 r1))
(nil)))
bindings/js/SerializedScriptValue.cpp:343: internal compiler error: in
final_scan_insn, at final.c:2604
--
Summary: [4.4 regression] ICE in final_scan_insn, at final.c:2604
Product: gcc
Version: 4.4.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: doko at ubuntu dot com
GCC target triplet: ia64-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43348
