From 4b5b961390cde313cc983f4cbffb954eeaf078e3 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 9 Jun 2004 16:48:56 -0700 Subject: [PATCH] re PR tree-optimization/15108 ([tree-ssa] [regression] missed sib-calling for pointer changes) PR opt/15108 * tree-tailcall.c (find_tail_calls): Don't check early for tail_recursion failure. From-SVN: r82866 --- gcc/ChangeLog | 6 ++++++ gcc/tree-tailcall.c | 10 +++++----- 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 637a9bfa24f..4eda0b17d6e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2004-06-09 Richard Henderson + + PR opt/15108 + * tree-tailcall.c (find_tail_calls): Don't check early for + tail_recursion failure. + 2004-06-09 Diego Novillo Move SSA_NAME annotations into tree_ssa_name. diff --git a/gcc/tree-tailcall.c b/gcc/tree-tailcall.c index 5027c2b6f41..47d707682b3 100644 --- a/gcc/tree-tailcall.c +++ b/gcc/tree-tailcall.c @@ -460,11 +460,6 @@ find_tail_calls (basic_block bb, struct tailcall **ret) if (TREE_CODE (stmt) != MODIFY_EXPR) return; - /* Unless this is a tail recursive call, we cannot do anything with - the statement anyway. */ - if (!tail_recursion) - return; - if (!process_assignment (stmt, stmt, bsi, &m, &a, &ass_var)) return; } @@ -491,6 +486,11 @@ find_tail_calls (basic_block bb, struct tailcall **ret) && (ret_var != ass_var)) return; + /* If this is not a tail recursive call, we cannot handle addends or + multiplicands. */ + if (!tail_recursion && (m || a)) + return; + nw = xmalloc (sizeof (struct tailcall)); nw->call_block = bb; -- 2.30.2