On 05/11/2015 07:23 AM, Andreas Krebbel wrote:
With the vector facility support z13 mov patterns have more than 30
alternatives.
gcc/
* recog.h: Increase MAX_RECOG_ALTERNATIVES.
---
gcc/recog.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/recog.h b/gcc/recog.h
index 8a38b26..4d8ca0c 100644
--- a/gcc/recog.h
+++ b/gcc/recog.h
@@ -23,7 +23,7 @@ along with GCC; see the file COPYING3. If not see
/* Random number that should be large enough for all purposes. Also define
a type that has at least MAX_RECOG_ALTERNATIVES + 1 bits, with the extra
bit giving an invalid value that can be used to mean "uninitialized". */
-#define MAX_RECOG_ALTERNATIVES 30
+#define MAX_RECOG_ALTERNATIVES 35
typedef unsigned int alternative_mask;
Yow! Won't think break on 32bit integer targets?
Which leads me to ponder how difficult it would be to catch this in the
generators so that a port which had too many alternatives would at least
issue a sensible error during the build process.
Jeff