From: Richard Henderson <rth@cygnus.com>
Date: Thu, 14 Oct 1999 23:28:50 +0000 (-0700)
Subject: flow.c (propagate_block): Add call-clobbered registers to significant too.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d1abb9254b8e917820e4b8c31f7ec0cc1090b6f6;p=gcc.git

flow.c (propagate_block): Add call-clobbered registers to significant too.

        * flow.c (propagate_block): Add call-clobbered registers to
        significant too.

From-SVN: r29989
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0912479d31c..6fe58227d70 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Thu Oct 14 16:27:50 1999  Richard Henderson  <rth@cygnus.com>
+
+	* flow.c (propagate_block): Add call-clobbered registers to
+	significant too.
+
 Thu Oct 14 13:54:25 1999  Jason Merrill  <jason@yorick.cygnus.com>
 
 	* toplev.c (main): Don't complain about options for other languages.
diff --git a/gcc/flow.c b/gcc/flow.c
index 3619e283341..409f8baacf8 100644
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -3433,7 +3433,11 @@ propagate_block (old, first, last, significant, bnum, flags)
 		  for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
 		    if (call_used_regs[i] && ! global_regs[i]
 			&& ! fixed_regs[i])
-		      SET_REGNO_REG_SET (dead, i);
+		      {
+		        SET_REGNO_REG_SET (dead, i);
+			if (significant)
+		          SET_REGNO_REG_SET (significant, i);
+		      }
 
 		  /* The stack ptr is used (honorarily) by a CALL insn.  */
 		  SET_REGNO_REG_SET (live, STACK_POINTER_REGNUM);