From: J"orn Rennecke <amylaar@cygnus.co.uk>
Date: Fri, 10 Dec 1999 00:57:03 +0000 (+0000)
Subject: regclass.c (globalize_reg): Re-instate test that allows fixed registers to be declare... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c07c7c9d25232987f99b31c6e6ce7e343d19dad7;p=gcc.git

regclass.c (globalize_reg): Re-instate test that allows fixed registers to be declared as a variable even...

	* regclass.c (globalize_reg): Re-instate test that allows
	fixed registers to be declared as a variable even after functions
	are defined.

	* testsuite/gcc.dg/991209-1.c: New test.

From-SVN: r30853
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 630761dcdf4..8c600f797a7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+Fri Dec 10 00:53:10 1999  J"orn Rennecke <amylaar@cygnus.co.uk>
+
+	* regclass.c (globalize_reg): Re-instate test that allows
+	fixed registers to be declared as a variable even after functions
+	are defined.
+
 Fri Dec 10 00:52:13 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>
 
 	* i386.md (cpu attribute): Add "athlon".
diff --git a/gcc/regclass.c b/gcc/regclass.c
index ea608f82202..55edc778fd0 100644
--- a/gcc/regclass.c
+++ b/gcc/regclass.c
@@ -218,7 +218,7 @@ struct reg_info_data {
 
 static struct reg_info_data *reg_info_head;
 
-/* No more global register vairiables may be declared; true once
+/* No more global register variables may be declared; true once
    regclass has been initialized. */
 
 static int no_global_reg_vars = 0;
@@ -630,7 +630,7 @@ void
 globalize_reg (i)
      int i;
 {
-  if (no_global_reg_vars)
+  if (fixed_regs[i] == 0 && no_global_reg_vars)
     error ("global register variable follows a function definition");
 
   if (global_regs[i])
@@ -767,7 +767,7 @@ regclass_init ()
      before regclass is run.  */
   reg_pref = NULL;
 
-  /* No more global register vairiables may be declared. */
+  /* No more global register variables may be declared. */
   no_global_reg_vars = 1;
 }
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index a39733d5f0a..658bb24faee 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+Fri Dec 10 00:53:10 1999  J"orn Rennecke <amylaar@cygnus.co.uk>
+
+	* gcc.dg/991209-1.c: New test.
+
 Wed Dec  8 23:44:08 1999  Nathan Sidwell <nathan@acm.org>
 
 	* gcc.c-torture/compile/991208-1.c: New test.
diff --git a/gcc/testsuite/gcc.dg/991209-1.c b/gcc/testsuite/gcc.dg/991209-1.c
new file mode 100644
index 00000000000..20f481f5634
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/991209-1.c
@@ -0,0 +1,8 @@
+/* { dg-do compile { target i386-*-* } } */
+
+int foo ()
+{
+  return 1;
+}
+
+register char *stack_ptr asm ("%esp");