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authorSebastian Pop <s.pop@samsung.com>2015-08-27 22:11:21 (GMT)
committerSebastian Pop <s.pop@samsung.com>2015-08-28 21:47:03 (GMT)
commit78cf0a232ee4314a9d668aab9b4b54f86b308111 (patch)
tree8a68adf2000538db7c9d499cbc2c992cd18752ef /gcc-4.9/gcc/params.def
parent59e18e04b2c6c598c06d1a0ab98a71baa830eaf2 (diff)
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port revision 219584 from linaro/gcc-4_9-branch
gcc/ 2015-01-14 Yvan Roux <yvan.roux@linaro.org> Backport from trunk r218451. 2014-12-06 James Greenhalgh <james.greenhalgh@arm.com> Sebastian Pop <s.pop@samsung.com> Brian Rzycki <b.rzycki@samsung.com> PR tree-optimization/54742 * params.def (max-fsm-thread-path-insns, max-fsm-thread-length, max-fsm-thread-paths): New. * doc/invoke.texi (max-fsm-thread-path-insns, max-fsm-thread-length, max-fsm-thread-paths): Documented. * tree-cfg.c (split_edge_bb_loc): Export. * tree-cfg.h (split_edge_bb_loc): Declared extern. * tree-ssa-threadedge.c (simplify_control_stmt_condition): Restore the original value of cond when simplification fails. (fsm_find_thread_path): New. (fsm_find_control_statement_thread_paths): New. (thread_through_normal_block): Call find_control_statement_thread_paths. * tree-ssa-threadupdate.c (dump_jump_thread_path): Pretty print EDGE_FSM_THREAD. (verify_seme): New. (duplicate_seme_region): New. (thread_through_all_blocks): Generate code for EDGE_FSM_THREAD edges calling duplicate_seme_region. * tree-ssa-threadupdate.h (jump_thread_edge_type): Add EDGE_FSM_THREAD. gcc/testsuite/ 2015-01-14 Yvan Roux <yvan.roux@linaro.org> Backport from trunk r218451. 2014-12-06 James Greenhalgh <james.greenhalgh@arm.com> Sebastian Pop <s.pop@samsung.com> Brian Rzycki <b.rzycki@samsung.com> PR tree-optimization/54742 * gcc.dg/tree-ssa/ssa-dom-thread-6.c: New test. * gcc.dg/tree-ssa/ssa-dom-thread-7.c: New test.
Diffstat (limited to 'gcc-4.9/gcc/params.def')
-rw-r--r--gcc-4.9/gcc/params.def15
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/params.def b/gcc-4.9/gcc/params.def
index 3d2c913..518d379 100644
--- a/gcc-4.9/gcc/params.def
+++ b/gcc-4.9/gcc/params.def
@@ -1389,6 +1389,21 @@ DEFPARAM (PARAM_UNINIT_CONTROL_DEP_ATTEMPTS,
"during uninitialized variable analysis",
1000, 1, 0)
+DEFPARAM (PARAM_MAX_FSM_THREAD_PATH_INSNS,
+ "max-fsm-thread-path-insns",
+ "Maximum number of instructions to copy when duplicating blocks on a finite state automaton jump thread path",
+ 100, 1, 999999)
+
+DEFPARAM (PARAM_MAX_FSM_THREAD_LENGTH,
+ "max-fsm-thread-length",
+ "Maximum number of basic blocks on a finite state automaton jump thread path",
+ 10, 1, 999999)
+
+DEFPARAM (PARAM_MAX_FSM_THREAD_PATHS,
+ "max-fsm-thread-paths",
+ "Maximum number of new jump thread paths to create for a finite state automaton",
+ 50, 1, 999999)
+
/* Fraction of adjusting fp setting cost in framepointer shrinkwrapping. */
DEFPARAM (PARAM_FPSET_COST_FRACTION,
"fpset-cost-fraction",