From: Richard Stallman <rms@gnu.org>
Date: Mon, 29 Jun 1992 04:29:24 +0000 (+0000)
Subject: *** empty log message ***
X-Git-Tag: misc/cutover-egcs-0~12599
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=944e5f7770b38d605bedabd5091376dea893684e;p=thirdparty%2Fgcc.git

*** empty log message ***

From-SVN: r1332
---

diff --git a/gcc/flow.c b/gcc/flow.c
index bc036dd15d8c..023af323337b 100644
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -1628,13 +1628,14 @@ libcall_dead_p (x, needed, note, insn)
 }
 
 /* Return 1 if register REGNO was used before it was set.
-   In other words, if it is live at function entry.  */
+   In other words, if it is live at function entry.
+   Don't count global regster variables, though.  */
 
 int
 regno_uninitialized (regno)
      int regno;
 {
-  if (n_basic_blocks == 0)
+  if (n_basic_blocks == 0 || global_regs[regno])
     return 0;
 
   return (basic_block_live_at_start[0][regno / REGSET_ELT_BITS]