The CRIS port seems to have made a minor goof in a conditional guarding
a call to copy_to_mode_reg.
copy_to_mode_reg always allocates a new pseudo, so calling it when
!can_create_pseudo_p is going to result in an ICE.
The attached patch fixes the ICE. But I don't know enough about the
CRIS port to know if other adjustments are necessary.
Jeff
diff --git a/gcc/config/cris/cris.md b/gcc/config/cris/cris.md
index 59a3862..13279b5 100644
--- a/gcc/config/cris/cris.md
+++ b/gcc/config/cris/cris.md
@@ -499,7 +499,8 @@
{
if (MEM_P (operands[0])
&& operands[1] != const0_rtx
- && (!TARGET_V32 || (!REG_P (operands[1]) && can_create_pseudo_p ())))
+ && can_create_pseudo_p ()
+ && (!TARGET_V32 || !REG_P (operands[1])))
operands[1] = copy_to_mode_reg (DImode, operands[1]);
/* Some other ports (as of 2001-09-10 for example mcore and romp) also
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr68538.c
b/gcc/testsuite/gcc.c-torture/compile/pr68538.c
new file mode 100644
index 0000000..2822cdb
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr68538.c
@@ -0,0 +1,52 @@
+struct percpu_counter {
+ signed long long count;
+};
+struct blkg_rwstat {
+ struct percpu_counter cpu_cnt[4];
+};
+struct cfq_group {
+ struct blkg_rwstat service_time;
+};
+struct cfq_queue {
+ struct cfq_group *group;
+};
+struct request {
+ struct cfq_queue *active_queue;
+ unsigned long long cmd_flags;
+ void *priv;
+};
+static void blkg_rwstat_add(struct blkg_rwstat *rwstat, int rw, unsigned long
long val)
+{
+ struct percpu_counter *cnt;
+ if (rw & 1)
+ cnt = &rwstat->cpu_cnt[1];
+ else
+ cnt = &rwstat->cpu_cnt[0];
+ cnt->count += val;
+ if (rw & 2)
+ cnt = &rwstat->cpu_cnt[2];
+ else
+ cnt = &rwstat->cpu_cnt[3];
+ cnt->count += val;
+}
+extern unsigned long long rq_start_time_ns(void);
+extern unsigned long long rq_io_start_time_ns(void);
+extern int rq_is_sync(void);
+extern void cfq_arm_slice_timer(void);
+void cfq_completed_request(struct request *rq)
+{
+ struct cfq_queue *queue = rq->priv;
+ int sync = rq_is_sync();
+ struct cfq_group *group = queue->group;
+ long long start_time = rq_start_time_ns();
+ long long io_start_time = rq_io_start_time_ns();
+ int rw = rq->cmd_flags;
+
+ if (io_start_time < 1)
+ blkg_rwstat_add(&group->service_time, rw, 1 - io_start_time);
+ blkg_rwstat_add(0, rw, io_start_time - start_time);
+
+ if (rq->active_queue == queue && sync)
+ cfq_arm_slice_timer();
+}
+
