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| author | Jakub Jelinek <jakub@redhat.com> | 2012-09-17 11:18:35 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2012-09-17 11:18:35 +0200 |
| commit | 3b9ee1cc734a78aaf343eea4e8a748cbf4a95510 (patch) | |
| tree | d6bb01d68cea1ccaa62cc403f01e0a9d76919709 /gcc/tree-ssa-math-opts.c | |
| parent | b4a642cb4e5152deab0eb2ffd6463a9144f7305f (diff) | |
| download | gcc-3b9ee1cc734a78aaf343eea4e8a748cbf4a95510.zip gcc-3b9ee1cc734a78aaf343eea4e8a748cbf4a95510.tar.gz gcc-3b9ee1cc734a78aaf343eea4e8a748cbf4a95510.tar.bz2 | |
re PR middle-end/54563 (ICE in redirect_eh_edge_1, at tree-eh.c:2215)
PR tree-optimization/54563
* tree-ssa-math-opts.c (execute_cse_sincos): Call
gimple_purge_dead_eh_edges if last call has been changed.
* g++.dg/torture/pr54563.C: New test.
From-SVN: r191378
Diffstat (limited to 'gcc/tree-ssa-math-opts.c')
| -rw-r--r-- | gcc/tree-ssa-math-opts.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/gcc/tree-ssa-math-opts.c b/gcc/tree-ssa-math-opts.c index 94d19af..2020bb1 100644 --- a/gcc/tree-ssa-math-opts.c +++ b/gcc/tree-ssa-math-opts.c @@ -1,5 +1,5 @@ /* Global, SSA-based optimizations using mathematical identities. - Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 + Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. This file is part of GCC. @@ -1378,12 +1378,18 @@ execute_cse_sincos (void) FOR_EACH_BB (bb) { gimple_stmt_iterator gsi; + bool cleanup_eh = false; for (gsi = gsi_after_labels (bb); !gsi_end_p (gsi); gsi_next (&gsi)) { gimple stmt = gsi_stmt (gsi); tree fndecl; + /* Only the last stmt in a bb could throw, no need to call + gimple_purge_dead_eh_edges if we change something in the middle + of a basic block. */ + cleanup_eh = false; + if (is_gimple_call (stmt) && gimple_call_lhs (stmt) && (fndecl = gimple_call_fndecl (stmt)) @@ -1421,6 +1427,7 @@ execute_cse_sincos (void) gimple_set_location (new_stmt, loc); unlink_stmt_vdef (stmt); gsi_replace (&gsi, new_stmt, true); + cleanup_eh = true; if (gimple_vdef (stmt)) release_ssa_name (gimple_vdef (stmt)); } @@ -1443,6 +1450,7 @@ execute_cse_sincos (void) gimple_set_location (new_stmt, loc); unlink_stmt_vdef (stmt); gsi_replace (&gsi, new_stmt, true); + cleanup_eh = true; if (gimple_vdef (stmt)) release_ssa_name (gimple_vdef (stmt)); } @@ -1460,6 +1468,7 @@ execute_cse_sincos (void) gimple_set_location (new_stmt, loc); unlink_stmt_vdef (stmt); gsi_replace (&gsi, new_stmt, true); + cleanup_eh = true; if (gimple_vdef (stmt)) release_ssa_name (gimple_vdef (stmt)); } @@ -1469,6 +1478,8 @@ execute_cse_sincos (void) } } } + if (cleanup_eh) + cfg_changed |= gimple_purge_dead_eh_edges (bb); } statistics_counter_event (cfun, "sincos statements inserted", |