[SPARC] Fix PR target/70630

[Eric Botcazou]

This is the embarrassing dangling-else bug in sparc_compute_frame_size spotted 
by the -Wparentheses warning.  It went unnoticed for 5 years because the block 
of code is actually a no-op (with or without the bug), it would do something 
only if someone wanted to give a try to a totally new ABI for SPARC...

Tested on SPARC/Solaris, applied on all active branches.


2016-04-12  Eric Botcazou  <ebotca...@adacore.com>

        PR target/70630
        * config/sparc/sparc.c (sparc_compute_frame_size): Add parentheses.

-- 
Eric Botcazou
Index: config/sparc/sparc.c
===================================================================
--- config/sparc/sparc.c	(revision 234827)
+++ config/sparc/sparc.c	(working copy)
@@ -4917,13 +4917,18 @@ sparc_compute_frame_size (HOST_WIDE_INT
 
   /* Calculate space needed for global registers.  */
   if (TARGET_ARCH64)
-    for (i = 0; i < 8; i++)
-      if (save_global_or_fp_reg_p (i, 0))
-	n_global_fp_regs += 2;
+    {
+      for (i = 0; i < 8; i++)
+	if (save_global_or_fp_reg_p (i, 0))
+	  n_global_fp_regs += 2;
+    }
   else
-    for (i = 0; i < 8; i += 2)
-      if (save_global_or_fp_reg_p (i, 0) || save_global_or_fp_reg_p (i + 1, 0))
-	n_global_fp_regs += 2;
+    {
+      for (i = 0; i < 8; i += 2)
+	if (save_global_or_fp_reg_p (i, 0)
+	    || save_global_or_fp_reg_p (i + 1, 0))
+	  n_global_fp_regs += 2;
+    }
 
   /* In the flat window model, find out which local and in registers need to
      be saved.  We don't reserve space in the current frame for them as they