On 10/30/15 14:28, Jeff Law wrote:
So when we don't use src_reg or dst_mode, we'll get a warning about the unused
variable. I guess this is the first port where HARD_REGNO_NREGS is a constant.
Yeah, I noticed that when first lookingat the port, but as it wasn't
(apparently) broken ...
Second, MOVE_MAX is 4. That's causing out-of-bounds array access warnings in
various places.
There were a variety of other problems associated with MOVE_MAX being smaller
than a word. If I change MOVE_MAX to 8, then everything is good.
Makes sense.
Testing attached ...
nathan
2015-10-30 Jeff Law <j...@redhat.com>
Nathan Sidwell <nat...@acm.org>
* config/nvptx/nvptx.h (HARD_REGNO_NREGS): Avoid warning on unused
args.
(MOVE_MAX): Set to 8.
Index: config/nvptx/nvptx.h
===================================================================
--- config/nvptx/nvptx.h (revision 229595)
+++ config/nvptx/nvptx.h (working copy)
@@ -88,7 +88,7 @@
#define CALL_USED_REGISTERS \
{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }
-#define HARD_REGNO_NREGS(regno, mode) 1
+#define HARD_REGNO_NREGS(regno, mode) ((void)regno, (void)mode, 1)
#define CANNOT_CHANGE_MODE_CLASS(M1, M2, CLS) ((CLS) == RETURN_REG)
#define HARD_REGNO_MODE_OK(REG, MODE) nvptx_hard_regno_mode_ok (REG, MODE)
@@ -356,7 +356,7 @@ struct GTY(()) machine_function
#define FLOAT_STORE_FLAG_VALUE(MODE) REAL_VALUE_ATOF("1.0", (MODE))
#define CASE_VECTOR_MODE SImode
-#define MOVE_MAX 4
+#define MOVE_MAX 8
#define MOVE_RATIO(SPEED) 4
#define TRULY_NOOP_TRUNCATION(outprec, inprec) 1
#define FUNCTION_MODE QImode
