The patch for PR17959 breaks Ada on ia64. Starting program: /tmp/cvs/gcc-test-r112543/Build/gcc/gnat1 -quiet -dumpbase g-altcon.adb -O2 -W -Wall -fPIC -g -gnatpg -gnatO g-altcon.o g-altcon.adb
Program received signal SIGSEGV, Segmentation fault. 0x40000000008d8da1 in emit_move_insn (x=0x2000000000783560, y=0x0) at ../../gcc/expr.c:3229 3229 gcc_assert (mode != BLKmode -- Summary: [4.2 regression] ICE in emit_move_insn Product: gcc Version: 4.2.0 Status: UNCONFIRMED Keywords: ice-on-valid-code, build Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: schwab at suse dot de GCC target triplet: ia64-*-* OtherBugsDependingO 17959 nThis: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26977