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authorSandra Loosemore <sandra@codesourcery.com>2023-08-24 17:34:59 +0000
committerSandra Loosemore <sandra@codesourcery.com>2023-08-25 19:42:50 +0000
commita62c8324e7e31ae6614f549bdf9d8a653233f8fc (patch)
tree6ccf1478da5711f0c7b4ada9a9789d4213ad0347 /gcc/gimplify.cc
parentb41d7eb0e14785ff0ad6e6922cbd4c880e680bf9 (diff)
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OpenMP: Add OMP_STRUCTURED_BLOCK and GIMPLE_OMP_STRUCTURED_BLOCK.
In order to detect invalid jumps in and out of intervening code in imperfectly-nested loops, the front ends need to insert some sort of marker to identify the structured block sequences that they push into the inner body of the loop. The error checking happens in the diagnose_omp_blocks pass, between gimplification and OMP lowering, so we need both GENERIC and GIMPLE representations of these markers. They are removed in OMP lowering so no subsequent passes need to know about them. This patch doesn't include any front-end changes to generate the new data structures. gcc/cp/ChangeLog * constexpr.cc (cxx_eval_constant_expression): Handle OMP_STRUCTURED_BLOCK. * pt.cc (tsubst_expr): Likewise. gcc/ChangeLog * doc/generic.texi (OpenMP): Document OMP_STRUCTURED_BLOCK. * doc/gimple.texi (GIMPLE instruction set): Add GIMPLE_OMP_STRUCTURED_BLOCK. (GIMPLE_OMP_STRUCTURED_BLOCK): New subsection. * gimple-low.cc (lower_stmt): Error on GIMPLE_OMP_STRUCTURED_BLOCK. * gimple-pretty-print.cc (dump_gimple_omp_block): Handle GIMPLE_OMP_STRUCTURED_BLOCK. (pp_gimple_stmt_1): Likewise. * gimple-walk.cc (walk_gimple_stmt): Likewise. * gimple.cc (gimple_build_omp_structured_block): New. * gimple.def (GIMPLE_OMP_STRUCTURED_BLOCK): New. * gimple.h (gimple_build_omp_structured_block): Declare. (gimple_has_substatements): Handle GIMPLE_OMP_STRUCTURED_BLOCK. (CASE_GIMPLE_OMP): Likewise. * gimplify.cc (is_gimple_stmt): Handle OMP_STRUCTURED_BLOCK. (gimplify_expr): Likewise. * omp-expand.cc (GIMPLE_OMP_STRUCTURED_BLOCK): Error on GIMPLE_OMP_STRUCTURED_BLOCK. * omp-low.cc (scan_omp_1_stmt): Handle GIMPLE_OMP_STRUCTURED_BLOCK. (lower_omp_1): Likewise. (diagnose_sb_1): Likewise. (diagnose_sb_2): Likewise. * tree-inline.cc (remap_gimple_stmt): Handle GIMPLE_OMP_STRUCTURED_BLOCK. (estimate_num_insns): Likewise. * tree-nested.cc (convert_nonlocal_reference_stmt): Likewise. (convert_local_reference_stmt): Likewise. (convert_gimple_call): Likewise. * tree-pretty-print.cc (dump_generic_node): Handle OMP_STRUCTURED_BLOCK. * tree.def (OMP_STRUCTURED_BLOCK): New. * tree.h (OMP_STRUCTURED_BLOCK_BODY): New.
Diffstat (limited to 'gcc/gimplify.cc')
-rw-r--r--gcc/gimplify.cc6
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/gimplify.cc b/gcc/gimplify.cc
index 1e90daa..a49b50b 100644
--- a/gcc/gimplify.cc
+++ b/gcc/gimplify.cc
@@ -5980,6 +5980,7 @@ is_gimple_stmt (tree t)
case OMP_SCOPE:
case OMP_SECTIONS:
case OMP_SECTION:
+ case OMP_STRUCTURED_BLOCK:
case OMP_SINGLE:
case OMP_MASTER:
case OMP_MASKED:
@@ -17037,6 +17038,7 @@ gimplify_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p,
break;
case OMP_SECTION:
+ case OMP_STRUCTURED_BLOCK:
case OMP_MASTER:
case OMP_MASKED:
case OMP_ORDERED:
@@ -17055,6 +17057,9 @@ gimplify_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p,
case OMP_SECTION:
g = gimple_build_omp_section (body);
break;
+ case OMP_STRUCTURED_BLOCK:
+ g = gimple_build_omp_structured_block (body);
+ break;
case OMP_MASTER:
g = gimple_build_omp_master (body);
break;
@@ -17455,6 +17460,7 @@ gimplify_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p,
&& code != OMP_SCAN
&& code != OMP_SECTIONS
&& code != OMP_SECTION
+ && code != OMP_STRUCTURED_BLOCK
&& code != OMP_SINGLE
&& code != OMP_SCOPE);
}