Fix 2 bugs in last patch.

* alias.c (clear_reg_alias_info): Only handle pseudo registers. From-SVN: r45553

Fix 2 bugs in last patch.
* alias.c (clear_reg_alias_info): Only handle pseudo registers. From-SVN: r45553
4e1a4144 · Jim Wilson · Jim Wilson · fcbc317f · 4e1a4144 · 4e1a4144
Commit 4e1a4144 authored Sep 11, 2001 by Jim Wilson Committed by Jim Wilson Sep 11, 2001
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gcc/ChangeLog
+4 -0

gcc/alias.c
+4 -2

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+2001-09-11  Jim Wilson  <wilson@redhat.com>
+
+	* alias.c (clear_reg_alias_info): Only handle pseudo registers.
+
 2001-10-11  Matt Kraai  <kraai@alumni.carnegiemellon.edu>

 	* builtins.c (c_strlen): Treat an offset too large for a

--- a/gcc/alias.c
+++ b/gcc/alias.c
@@ -969,8 +969,10 @@ void
 clear_reg_alias_info (reg)
     rtx reg;
 {
-  if (REGNO (reg) < reg_known_value_size)
-    reg_known_value[REGNO (reg)] = reg;
+  unsigned int regno = REGNO (reg);
+
+  if (regno < reg_known_value_size && regno >= FIRST_PSEUDO_REGISTER)
+    reg_known_value[regno] = reg;
 }

 /* Returns a canonical version of X, from the point of view alias