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| author | Jeff Law <law@redhat.com> | 2016-03-22 15:32:34 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2016-03-22 15:32:34 -0600 |
| commit | 75bb14d7cc3cec5f0085ed64cf660e1a72574912 (patch) | |
| tree | eb3865559a521e6eaba78f21f692deb765bb08e6 /gcc/tree-ssa-threadbackward.c | |
| parent | 104cdaf14f5ba38bda091ecc1a6f028c8d21586b (diff) | |
| download | gcc-75bb14d7cc3cec5f0085ed64cf660e1a72574912.zip gcc-75bb14d7cc3cec5f0085ed64cf660e1a72574912.tar.gz gcc-75bb14d7cc3cec5f0085ed64cf660e1a72574912.tar.bz2 | |
re PR target/70232 (excessive stack usage with -O2)
PR target/70232
tree-ssa-threadbackward.c
(fsm_find_control_statement_thread_paths): Correctly distinguish
between old style jump threads vs FSM jump threads.
PR target/70232
* gcc.dg/tree-ssa/pr70232.c: New test.
From-SVN: r234409
Diffstat (limited to 'gcc/tree-ssa-threadbackward.c')
| -rw-r--r-- | gcc/tree-ssa-threadbackward.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/tree-ssa-threadbackward.c b/gcc/tree-ssa-threadbackward.c index 88f8d5e..44b1b47 100644 --- a/gcc/tree-ssa-threadbackward.c +++ b/gcc/tree-ssa-threadbackward.c @@ -451,7 +451,7 @@ fsm_find_control_statement_thread_paths (tree name, So for that case, drastically reduce the number of statements we are allowed to copy. */ - if (!threaded_through_latch + if (!(threaded_through_latch && threaded_multiway_branch) && (n_insns * PARAM_VALUE (PARAM_FSM_SCALE_PATH_STMTS) >= PARAM_VALUE (PARAM_MAX_JUMP_THREAD_DUPLICATION_STMTS))) { |