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| author | Richard Biener <rguenther@suse.de> | 2015-09-24 07:35:55 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2015-09-24 07:35:55 +0000 |
| commit | 1fefbb66c8282a4d9e74dc178a3578e4c302862f (patch) | |
| tree | 57fd1e1a8691727365ec0a98226d7ba07c04e952 /gcc/tree-ssa-sccvn.c | |
| parent | 0a28fdcaf70aee998705bf5878f4c508d9641e31 (diff) | |
| download | gcc-1fefbb66c8282a4d9e74dc178a3578e4c302862f.zip gcc-1fefbb66c8282a4d9e74dc178a3578e4c302862f.tar.gz gcc-1fefbb66c8282a4d9e74dc178a3578e4c302862f.tar.bz2 | |
tree-ssa-sccvn.h (vn_reference_op_struct): Add clique and base members.
2015-09-24 Richard Biener <rguenther@suse.de>
* tree-ssa-sccvn.h (vn_reference_op_struct): Add clique and base
members.
* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Record clique
and base for MEM_REF and TARGET_MEM_REF. Handle BIT_FIELD_REF
offset.
(ao_ref_init_from_vn_reference): Record clique and base in the
built base.
* tree-ssa-pre.c (create_component_ref_by_pieces_1): Likewise
* g++.dg/tree-ssa/restrict3.C: New testcase.
From-SVN: r228074
Diffstat (limited to 'gcc/tree-ssa-sccvn.c')
| -rw-r--r-- | gcc/tree-ssa-sccvn.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c index 18529ac..57c1b55 100644 --- a/gcc/tree-ssa-sccvn.c +++ b/gcc/tree-ssa-sccvn.c @@ -773,6 +773,8 @@ copy_reference_ops_from_ref (tree ref, vec<vn_reference_op_s> *result) temp.op1 = TMR_STEP (ref); temp.op2 = TMR_OFFSET (ref); temp.off = -1; + temp.clique = MR_DEPENDENCE_CLIQUE (ref); + temp.base = MR_DEPENDENCE_BASE (ref); result->quick_push (temp); memset (&temp, 0, sizeof (temp)); @@ -816,11 +818,19 @@ copy_reference_ops_from_ref (tree ref, vec<vn_reference_op_s> *result) temp.op0 = TREE_OPERAND (ref, 1); if (tree_fits_shwi_p (TREE_OPERAND (ref, 1))) temp.off = tree_to_shwi (TREE_OPERAND (ref, 1)); + temp.clique = MR_DEPENDENCE_CLIQUE (ref); + temp.base = MR_DEPENDENCE_BASE (ref); break; case BIT_FIELD_REF: /* Record bits and position. */ temp.op0 = TREE_OPERAND (ref, 1); temp.op1 = TREE_OPERAND (ref, 2); + if (tree_fits_shwi_p (TREE_OPERAND (ref, 2))) + { + HOST_WIDE_INT off = tree_to_shwi (TREE_OPERAND (ref, 2)); + if (off % BITS_PER_UNIT == 0) + temp.off = off / BITS_PER_UNIT; + } break; case COMPONENT_REF: /* The field decl is enough to unambiguously specify the field, @@ -1017,6 +1027,8 @@ ao_ref_init_from_vn_reference (ao_ref *ref, base_alias_set = get_deref_alias_set (op->op0); *op0_p = build2 (MEM_REF, op->type, NULL_TREE, op->op0); + MR_DEPENDENCE_CLIQUE (*op0_p) = op->clique; + MR_DEPENDENCE_BASE (*op0_p) = op->base; op0_p = &TREE_OPERAND (*op0_p, 0); break; |