On 07/19/11 14:25, Andreas Schwab wrote:
> I'm now seeing this ICE:
>
> /bin/sh ./libtool --tag=GCJ --mode=compile
> /usr/local/gcc/gcc-20110719/Build/./gcc/gcj
> -B/usr/local/gcc/gcc-20110719/Build/ia64-suse-linux/libjava/
> -B/usr/local/gcc/gcc-20110719/Build/./gcc/ -B/usr/ia64-suse-linux/bin/
> -B/usr/ia64-suse-linux/lib/ -isystem /usr/ia64-suse-linux/include -isystem
> /usr/ia64-suse-linux/sys-include -funwind-tables -fclasspath=
> -fbootclasspath=../../../libjava/classpath/lib --encoding=UTF-8
> -Wno-deprecated -fbootstrap-classes -g -O2 -c -o java/lang/ref.lo
> -fsource-filename=/usr/local/gcc/gcc-20110719/Build/ia64-suse-linux/libjava/classpath/lib/classes
> -MT java/lang/ref.lo -MD -MP -MF java/lang/ref.deps @java/lang/ref.list
> libtool: compile: /usr/local/gcc/gcc-20110719/Build/./gcc/gcj
> -B/usr/local/gcc/gcc-20110719/Build/ia64-suse-linux/libjava/
> -B/usr/local/gcc/gcc-20110719/Build/./gcc/ -B/usr/ia64-suse-linux/bin/
> -B/usr/ia64-suse-linux/lib/ -isystem /usr/ia64-suse-linux/include -isystem
> /usr/ia64-suse-linux/sys-include -funwind-tables -fclasspath=
> -fbootclasspath=../../../libjava/classpath/lib --encoding=UTF-8
> -Wno-deprecated -fbootstrap-classes -g -O2 -c
> -fsource-filename=/usr/local/gcc/gcc-20110719/Build/ia64-suse-linux/libjava/classpath/lib/classes
> -MT java/lang/ref.lo -MD -MP -MF java/lang/ref.deps @java/lang/ref.list
> -fPIC -o java/lang/.libs/ref.o
> /usr/local/gcc/gcc-20110719/libjava/classpath/java/lang/ref/ReferenceQueue.java:
> In class 'java.lang.ref.ReferenceQueue':
> /usr/local/gcc/gcc-20110719/libjava/classpath/java/lang/ref/ReferenceQueue.java:
> In method 'java.lang.ref.ReferenceQueue.enqueue(java.lang.ref.Reference)':
> In file included from
> /usr/local/gcc/gcc-20110719/libjava/java/lang/ref/Reference.java:202:0,
> from
> /usr/local/gcc/gcc-20110719/libjava/classpath/java/lang/ref/PhantomReference.java:75,
> from <built-in>:6:
> /usr/local/gcc/gcc-20110719/libjava/classpath/java/lang/ref/ReferenceQueue.java:97:0:
> internal compiler error: in advance_target_bb, at sched-ebb.c:691
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <http://gcc.gnu.org/bugs.html> for instructions.
> make[3]: *** [java/lang/ref.lo] Error 1
It's getting confused about loads/stores being control_flow_insns and
getting scheduled past each other nonetheless. Mind testing the following?
Bernd
Index: gcc/sched-ebb.c
===================================================================
--- gcc/sched-ebb.c (revision 176579)
+++ gcc/sched-ebb.c (working copy)
@@ -397,6 +397,9 @@ add_deps_for_risky_insns (rtx head, rtx
bb = BLOCK_FOR_INSN (insn);
bb->aux = last_block;
last_block = bb;
+ if (flag_non_call_exceptions && last_jump != NULL_RTX)
+ add_dependence (insn, last_jump, REG_DEP_ANTI);
+
last_jump = insn;
}
else if (INSN_P (insn) && last_jump != NULL_RTX)
