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| author | Bin Cheng <bin.cheng@arm.com> | 2016-05-03 09:04:46 +0000 |
|---|---|---|
| committer | Bin Cheng <amker@gcc.gnu.org> | 2016-05-03 09:04:46 +0000 |
| commit | 1cfcd39eee915a7582adc113fa6e7faac8b943e4 (patch) | |
| tree | 5411de44c126dfd942b7250b8f84f5f31dbfa368 /gcc/params.def | |
| parent | 15526589cf190bc111e1ef27f713e2d46c449172 (diff) | |
| download | gcc-1cfcd39eee915a7582adc113fa6e7faac8b943e4.zip gcc-1cfcd39eee915a7582adc113fa6e7faac8b943e4.tar.gz gcc-1cfcd39eee915a7582adc113fa6e7faac8b943e4.tar.bz2 | |
re PR tree-optimization/56541 (vectorizaton fails in conditional assignment of a constant)
PR tree-optimization/56541
* doc/invoke.texi (@item max-tree-if-conversion-phi-args): New item.
* params.def (PARAM_MAX_TREE_IF_CONVERSION_PHI_ARGS): new param.
* tree-if-conv.c (MAX_PHI_ARG_NUM): new macro.
(any_complicated_phi): new static variable.
(aggressive_if_conv): delete.
(if_convertible_phi_p): support phis with more than two arguments.
(if_convertible_bb_p): remvoe check on aggressive_if_conv and
critical pred edges.
(ifcvt_split_critical_edges): support phis with more than two
arguments by checking new parameter. only split critical edges
if needed.
(tree_if_conversion): handle simd pragma marked loop using new
local variable aggressive_if_conv. check any_complicated_phi.
gcc/testsuite
PR tree-optimization/56541
* gcc.dg/tree-ssa/ifc-pr56541.c: new test.
* gcc.dg/vect/pr56541.c: new test.
From-SVN: r235808
Diffstat (limited to 'gcc/params.def')
| -rw-r--r-- | gcc/params.def | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/params.def b/gcc/params.def index 9e05401..62a1e404 100644 --- a/gcc/params.def +++ b/gcc/params.def @@ -530,6 +530,12 @@ DEFPARAM(PARAM_SCEV_MAX_EXPR_COMPLEXITY, "Bound on the complexity of the expressions in the scalar evolutions analyzer.", 10, 0, 0) +DEFPARAM (PARAM_MAX_TREE_IF_CONVERSION_PHI_ARGS, + "max-tree-if-conversion-phi-args", + "Maximum number of arguments in a PHI supported by TREE if-conversion " + "unless the loop is marked with simd pragma.", + 4, 2, 0) + DEFPARAM(PARAM_VECT_MAX_VERSION_FOR_ALIGNMENT_CHECKS, "vect-max-version-for-alignment-checks", "Bound on number of runtime checks inserted by the vectorizer's loop versioning for alignment check.", |