From 7a12ace5bc2c9be0cbcd4b13bcd89f2e79a16318 Mon Sep 17 00:00:00 2001 From: Mark Mitchell Date: Thu, 25 Nov 1999 16:14:00 +0000 Subject: [PATCH] * tree.c (unsave_expr_now): Handle NULL_TREE as input. From-SVN: r30665 --- gcc/ChangeLog | 4 ++++ gcc/tree.c | 4 ++++ 2 files changed, 8 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 17119fba470..29f49835c5d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +1999-11-25 Mark Mitchell + + * tree.c (unsave_expr_now): Handle NULL_TREE as input. + Wed Nov 24 17:08:09 MET 1999 Jan Hubicka * reg-stack.c (subst_stack_regs_pat): Swap operands in commutative diff --git a/gcc/tree.c b/gcc/tree.c index 82b00e7d59a..1ec2976ab9d 100644 --- a/gcc/tree.c +++ b/gcc/tree.c @@ -2469,6 +2469,10 @@ unsave_expr_now_r (expr) { enum tree_code code; + /* There's nothing to do for NULL_TREE. */ + if (!expr) + return; + unsave_expr_1 (expr); code = TREE_CODE (expr); -- 2.30.2