* config/alpha/alpha.c (call_operand) [OSF]: Disallow virtual regs.

From-SVN: r48297

* config/alpha/alpha.c (call_operand) [OSF]: Disallow virtual regs.
From-SVN: r48297
99407cf2 · Richard Henderson · Richard Henderson · 8aad1777 · 99407cf2 · 99407cf2
Commit 99407cf2 authored Dec 23, 2001 by Richard Henderson Committed by Richard Henderson Dec 23, 2001
Hide whitespace changes
Inline Side-by-side

Showing with 8 additions and 1 deletions

gcc/ChangeLog
+2 -0

gcc/config/alpha/alpha.c
+6 -1

No files found.
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
 2001-12-23  Richard Henderson  <rth@redhat.com>

+	* config/alpha/alpha.c (call_operand) [OSF]: Disallow virtual regs.
+
 	* config/alpha/alpha.md (UNSPEC_SIBCALL): New.
 	(sibcall, sibcall_value, sibcall_osf_1_er, sibcall_osf_1): Use it.
 	(sibcall_value_osf_1_er, sibcall_value_osf_1): Likewise.

--- a/gcc/config/alpha/alpha.c
+++ b/gcc/config/alpha/alpha.c
@@ -1008,7 +1008,12 @@ call_operand (op, mode)
  if (GET_CODE (op) == REG)
    {
      if (TARGET_ABI_OSF)
-	return (REGNO (op) == 27 || REGNO (op) >= FIRST_PSEUDO_REGISTER);
+	{
+	  /* Disallow virtual registers to cope with pathalogical test cases
+	     such as compile/930117-1.c in which the virtual reg decomposes
+	     to the frame pointer.  Which is a hard reg that is not $27.  */
+	  return (REGNO (op) == 27 || REGNO (op) > LAST_VIRTUAL_REGISTER);
+	}
      else
 	return 1;
    }