* regclass.c (choose_hard_reg_mode): Handle vector arguments.

From-SVN: r47338

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a3af9cc248b187dd29b57230e096a093c93f9006..411ff77e6caa8b141674f8a9fcac02edd7877e1e 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2001-11-25  Aldy Hernandez  <aldyh@redhat.com>
+
+       * regclass.c (choose_hard_reg_mode): Handle vector arguments.
+
 2001-11-26  Alan Modra  <amodra@bigpond.net.au>
 
        * final.c: (insn_lengths): Make it an int *, so that large jump

diff --git a/gcc/regclass.c b/gcc/regclass.c
index 826da242dc188c3672d1ebdde74c08a5216d308f..9ef8c8cdffbbc2567e8ca038334208440307456f 100644 (file)
--- a/gcc/regclass.c
+++ b/gcc/regclass.c
@@ -713,6 +713,26 @@ choose_hard_reg_mode (regno, nregs)
   if (found_mode != VOIDmode)
     return found_mode;
 
+  for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_FLOAT);
+       mode != VOIDmode;
+       mode = GET_MODE_WIDER_MODE (mode))
+    if (HARD_REGNO_NREGS (regno, mode) == nregs
+       && HARD_REGNO_MODE_OK (regno, mode))
+      found_mode = mode;
+
+  if (found_mode != VOIDmode)
+    return found_mode;
+
+  for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_INT);
+       mode != VOIDmode;
+       mode = GET_MODE_WIDER_MODE (mode))
+    if (HARD_REGNO_NREGS (regno, mode) == nregs
+       && HARD_REGNO_MODE_OK (regno, mode))
+      found_mode = mode;
+
+  if (found_mode != VOIDmode)
+    return found_mode;
+
   /* Iterate over all of the CCmodes.  */
   for (m = (unsigned int) CCmode; m < (unsigned int) NUM_MACHINE_MODES; ++m)
     {