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V850: Define IRA_COVER_CLASSES
- From: Nick Clifton <nickc at redhat dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Thu, 28 Aug 2008 17:56:00 +0100
- Subject: V850: Define IRA_COVER_CLASSES
Hi Guys,
I am checking in the patch below to define IRA_COVER_CLASSES for the
V850 target. Whilst checking this patch I found that the new
register allocator exposed a problem with the return instruction
pattern, so the patch also includes a fix for this.
Cheers
Nick
gcc/ChangeLog
2008-08-28 Nick Clifton <nickc@redhat.com>
* config/v850/v850.h (IRA_COVER_CLASSES): Define.
* config/v850/v850.md (return): Remove frame size restriction.
Index: gcc/config/v850/v850.h
===================================================================
--- gcc/config/v850/v850.h (revision 139716)
+++ gcc/config/v850/v850.h (working copy)
@@ -318,6 +318,11 @@
#define N_REG_CLASSES (int) LIM_REG_CLASSES
+#define IRA_COVER_CLASSES \
+{ \
+ GENERAL_REGS, LIM_REG_CLASSES \
+}
+
/* Give names of register classes as strings for dump file. */
#define REG_CLASS_NAMES \
Index: gcc/config/v850/v850.md
===================================================================
--- gcc/config/v850/v850.md (revision 139716)
+++ gcc/config/v850/v850.md (working copy)
@@ -1563,7 +1563,7 @@
(define_insn "return"
[(return)]
- "reload_completed && compute_frame_size (get_frame_size (), (long *)0) == 0"
+ "reload_completed"
"jmp [r31]"
[(set_attr "length" "2")
(set_attr "cc" "none")])