From: Richard Kenner <kenner@gcc.gnu.org>
Date: Thu, 25 Apr 1996 18:05:09 +0000 (-0400)
Subject: (expand_builtin, case BUILT_IN_SETJMP): CLOBBER the static chain after
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=477efd500b645f92f6e9ee2997d94b7bbb5d6ab7;p=gcc.git

(expand_builtin, case BUILT_IN_SETJMP): CLOBBER the static chain after
label at setjmp point.

From-SVN: r11886
---

diff --git a/gcc/expr.c b/gcc/expr.c
index 278cfb36af4..f61ff823a21 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -8593,6 +8593,10 @@ expand_builtin (exp, target, subtarget, mode, ignore)
 	   make sure it's marked as used by this function.   */
 	emit_insn (gen_rtx (USE, VOIDmode, hard_frame_pointer_rtx));
 
+	/* Mark the static chain as clobbered here so life information
+	   doesn't get messed up for it.  */
+	emit_insn (gen_rtx (CLOBBER, VOIDmode, static_chain_rtx));
+
 	/* Now put in the code to restore the frame pointer, and argument
 	   pointer, if needed.  The code below is from expand_end_bindings
 	   in stmt.c; see detailed documentation there.  */