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| author | Jeff Law <law@redhat.com> | 2016-02-01 15:03:57 -0700 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2016-02-01 15:03:57 -0700 |
| commit | da9a8da809b84f398ad3357ca36d2c4402099eb9 (patch) | |
| tree | b5d9304a50509feb3392105ef9f8995096ece055 /gcc/params.def | |
| parent | 800cb72aae9947e6496c3705986c421978b92e8e (diff) | |
| download | gcc-da9a8da809b84f398ad3357ca36d2c4402099eb9.zip gcc-da9a8da809b84f398ad3357ca36d2c4402099eb9.tar.gz gcc-da9a8da809b84f398ad3357ca36d2c4402099eb9.tar.bz2 | |
re PR testsuite/68580 (FAIL: c-c++-common/tsan/pr65400-1.c -O0 execution test)
PR tree-optimization/68580
* params.def (FSM_MAXIMUM_PHI_ARGUMENTS): New param.
* tree-ssa-threadbackward.c
(fsm_find_control_statement_thread_paths): Do not try to walk
through large PHI nodes.
From-SVN: r233053
Diffstat (limited to 'gcc/params.def')
| -rw-r--r-- | gcc/params.def | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/params.def b/gcc/params.def index 0722ad7..c0494fa 100644 --- a/gcc/params.def +++ b/gcc/params.def @@ -1150,6 +1150,11 @@ DEFPARAM (PARAM_FSM_SCALE_PATH_STMTS, "Scale factor to apply to the number of statements in a threading path when comparing to the number of (scaled) blocks.", 2, 1, 10) +DEFPARAM (PARAM_FSM_MAXIMUM_PHI_ARGUMENTS, + "fsm-maximum-phi-arguments", + "Maximum number of arguments a PHI may have before the FSM threader will not try to thread through its block.", + 100, 1, 999999) + DEFPARAM (PARAM_FSM_SCALE_PATH_BLOCKS, "fsm-scale-path-blocks", "Scale factor to apply to the number of blocks in a threading path when comparing to the number of (scaled) statements.", |