re PR middle-end/45505 (gfortran.dg/pr25923.f90)
2011-02-09 Martin Jambor <mjambor@suse.cz> PR middle-end/45505 * tree-sra.c (struct access): New flags grp_scalar_read and grp_scalar_write. Changed description of assignment read and write flags. (dump_access): Dump new flags, reorder all of them. (sort_and_splice_var_accesses): Set the new flag accordingly, use them to detect multiple scalar reads. (analyze_access_subtree): Use the new scalar read write flags instead of the old flags. Adjusted comments. * testsuite/gfortran.dg/pr25923.f90: Remove xfails. From-SVN: r169964
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2011-02-09 Martin Jambor <mjambor@suse.cz>
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PR middle-end/45505
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* tree-sra.c (struct access): New flags grp_scalar_read and
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grp_scalar_write. Changed description of assignment read and write
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flags.
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(dump_access): Dump new flags, reorder all of them.
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(sort_and_splice_var_accesses): Set the new flag accordingly, use them
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to detect multiple scalar reads.
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(analyze_access_subtree): Use the new scalar read write flags instead
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of the old flags. Adjusted comments.
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2011-02-08 DJ Delorie <dj@redhat.com>
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PR target/47548
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@ -1,3 +1,8 @@
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2011-02-09 Martin Jambor <mjambor@suse.cz>
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PR middle-end/45505
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* gfortran.dg/pr25923.f90: Remove xfails.
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2011-02-08 Jerry DeLisle <jvdelisle@gcc.gnu.org>
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PR fortran/47583
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@ -10,7 +10,7 @@ implicit none
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contains
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function baz(arg) result(res) ! { dg-bogus "res.yr' may be" "PR45505" { xfail ilp32 } }
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function baz(arg) result(res) ! { dg-bogus "res.yr' may be" }
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type(bar), intent(in) :: arg
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type(bar) :: res
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logical, external:: some_func
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@ -19,7 +19,7 @@ contains
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else
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res = arg
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end if
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end function baz ! { dg-warning "res.yr' may be" "PR45505" { xfail ilp32 } }
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end function baz ! { dg-warning "res.yr' may be" }
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end module foo
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@ -195,6 +195,14 @@ struct access
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statement? This flag is propagated down the access tree. */
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unsigned grp_assignment_write : 1;
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/* Does this group contain a read access through a scalar type? This flag is
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not propagated in the access tree in any direction. */
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unsigned grp_scalar_read : 1;
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/* Does this group contain a write access through a scalar type? This flag
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is not propagated in the access tree in any direction. */
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unsigned grp_scalar_write : 1;
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/* Other passes of the analysis use this bit to make function
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analyze_access_subtree create scalar replacements for this group if
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possible. */
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@ -368,16 +376,18 @@ dump_access (FILE *f, struct access *access, bool grp)
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fprintf (f, ", type = ");
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print_generic_expr (f, access->type, 0);
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if (grp)
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fprintf (f, ", grp_write = %d, total_scalarization = %d, "
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"grp_read = %d, grp_hint = %d, grp_assignment_read = %d,"
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"grp_assignment_write = %d, grp_covered = %d, "
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fprintf (f, ", total_scalarization = %d, grp_read = %d, grp_write = %d, "
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"grp_assignment_read = %d, grp_assignment_write = %d, "
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"grp_scalar_read = %d, grp_scalar_write = %d, "
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"grp_hint = %d, grp_covered = %d, "
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"grp_unscalarizable_region = %d, grp_unscalarized_data = %d, "
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"grp_partial_lhs = %d, grp_to_be_replaced = %d, "
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"grp_maybe_modified = %d, "
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"grp_not_necessarilly_dereferenced = %d\n",
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access->grp_write, access->total_scalarization,
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access->grp_read, access->grp_hint, access->grp_assignment_read,
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access->grp_assignment_write, access->grp_covered,
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access->total_scalarization, access->grp_read, access->grp_write,
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access->grp_assignment_read, access->grp_assignment_write,
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access->grp_scalar_read, access->grp_scalar_write,
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access->grp_hint, access->grp_covered,
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access->grp_unscalarizable_region, access->grp_unscalarized_data,
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access->grp_partial_lhs, access->grp_to_be_replaced,
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access->grp_maybe_modified,
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@ -1593,9 +1603,13 @@ sort_and_splice_var_accesses (tree var)
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struct access *access = VEC_index (access_p, access_vec, i);
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bool grp_write = access->write;
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bool grp_read = !access->write;
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bool grp_scalar_write = access->write
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&& is_gimple_reg_type (access->type);
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bool grp_scalar_read = !access->write
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&& is_gimple_reg_type (access->type);
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bool grp_assignment_read = access->grp_assignment_read;
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bool grp_assignment_write = access->grp_assignment_write;
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bool multiple_reads = false;
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bool multiple_scalar_reads = false;
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bool total_scalarization = access->total_scalarization;
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bool grp_partial_lhs = access->grp_partial_lhs;
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bool first_scalar = is_gimple_reg_type (access->type);
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@ -1620,13 +1634,21 @@ sort_and_splice_var_accesses (tree var)
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if (ac2->offset != access->offset || ac2->size != access->size)
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break;
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if (ac2->write)
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{
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grp_write = true;
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grp_scalar_write = (grp_scalar_write
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|| is_gimple_reg_type (ac2->type));
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}
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else
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{
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if (grp_read)
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multiple_reads = true;
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else
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grp_read = true;
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if (is_gimple_reg_type (ac2->type))
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{
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if (grp_scalar_read)
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multiple_scalar_reads = true;
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else
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grp_scalar_read = true;
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}
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}
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grp_assignment_read |= ac2->grp_assignment_read;
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grp_assignment_write |= ac2->grp_assignment_write;
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@ -1648,9 +1670,11 @@ sort_and_splice_var_accesses (tree var)
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access->group_representative = access;
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access->grp_write = grp_write;
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access->grp_read = grp_read;
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access->grp_scalar_read = grp_scalar_read;
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access->grp_scalar_write = grp_scalar_write;
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access->grp_assignment_read = grp_assignment_read;
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access->grp_assignment_write = grp_assignment_write;
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access->grp_hint = multiple_reads || total_scalarization;
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access->grp_hint = multiple_scalar_reads || total_scalarization;
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access->grp_partial_lhs = grp_partial_lhs;
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access->grp_unscalarizable_region = unscalarizable_region;
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if (access->first_link)
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@ -1851,13 +1875,13 @@ enum mark_rw_status { SRA_MRRW_NOTHING, SRA_MRRW_DIRECT, SRA_MRRW_ASSIGN};
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there is more than one direct read access) or according to the following
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table:
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Access written to individually (once or more times)
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Access written to through a scalar type (once or more times)
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| Parent written to in an assignment statement
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| Written to in an assignment statement
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| |
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| | Access read individually _once_
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| | Access read as scalar _once_
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| | |
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| | | Parent read in an assignment statement
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| | | Read in an assignment statement
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| | | |
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| | | | Scalarize Comment
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-----------------------------------------------------------------------------
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@ -1888,8 +1912,6 @@ analyze_access_subtree (struct access *root, bool allow_replacements,
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HOST_WIDE_INT covered_to = root->offset;
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bool scalar = is_gimple_reg_type (root->type);
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bool hole = false, sth_created = false;
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bool direct_read = root->grp_read;
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bool direct_write = root->grp_write;
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if (root->grp_assignment_read)
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mark_read = SRA_MRRW_ASSIGN;
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if (allow_replacements && scalar && !root->first_child
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&& (root->grp_hint
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|| ((direct_write || root->grp_assignment_write)
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&& (direct_read || root->grp_assignment_read))))
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|| ((root->grp_scalar_read || root->grp_assignment_read)
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&& (root->grp_scalar_write || root->grp_assignment_write))))
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{
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if (dump_file && (dump_flags & TDF_DETAILS))
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{
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