From cd356d96737789078f5fc9502c940c0ce7dbd112 Mon Sep 17 00:00:00 2001 From: Ulrich Weigand Date: Mon, 16 Jul 2012 14:27:53 +0000 Subject: [PATCH] tree-ssa-ccp.c (optimize_unreachable): Check gsi_end_p before calling gsi_stmt. * tree-ssa-ccp.c (optimize_unreachable): Check gsi_end_p before calling gsi_stmt. From-SVN: r189539 --- gcc/ChangeLog | 5 +++++ gcc/tree-ssa-ccp.c | 6 ++++-- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b85d46003185..6bf3edcec4c4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2012-07-16 Ulrich Weigand + + * tree-ssa-ccp.c (optimize_unreachable): Check gsi_end_p + before calling gsi_stmt. + 2012-07-16 Kirill Yukhin Revert diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index d2ce870a1f00..6dc30e148cd1 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -2355,9 +2355,11 @@ optimize_unreachable (gimple_stmt_iterator i) FOR_EACH_EDGE (e, ei, bb->preds) { gsi = gsi_last_bb (e->src); - stmt = gsi_stmt (gsi); + if (gsi_end_p (gsi)) + continue; - if (stmt && gimple_code (stmt) == GIMPLE_COND) + stmt = gsi_stmt (gsi); + if (gimple_code (stmt) == GIMPLE_COND) { if (e->flags & EDGE_TRUE_VALUE) gimple_cond_make_false (stmt); -- 2.39.5