[gcc r12-2820] Cross-reference parts adapted in 'gcc/omp-oacc-neuter-broadcast.cc'

[Thomas Schwinge <tschwinge@gcc.gnu.org>]

https://gcc.gnu.org/g:62f01243fb27030b8d99c671f27349c2e7465edc

commit r12-2820-g62f01243fb27030b8d99c671f27349c2e7465edc
Author: Thomas Schwinge <thomas@codesourcery.com>
Date:   Mon Aug 9 12:21:43 2021 +0200

    Cross-reference parts adapted in 'gcc/omp-oacc-neuter-broadcast.cc'
    
            gcc/
            * config/nvptx/nvptx.c: Cross-reference parts adapted in
            'gcc/omp-oacc-neuter-broadcast.cc'.
            * omp-low.c: Likewise.
            * omp-oacc-neuter-broadcast.cc: Cross-reference parts adapted from
            the above files.

Diff:
---
 gcc/config/nvptx/nvptx.c         | 5 +++++
 gcc/omp-low.c                    | 2 ++
 gcc/omp-oacc-neuter-broadcast.cc | 9 ++++++++-
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/gcc/config/nvptx/nvptx.c b/gcc/config/nvptx/nvptx.c
index 6642bdfa867..4e4909e8c5f 100644
--- a/gcc/config/nvptx/nvptx.c
+++ b/gcc/config/nvptx/nvptx.c
@@ -3205,6 +3205,7 @@ nvptx_mach_vector_length ()
 
 /* Loop structure of the function.  The entire function is described as
    a NULL loop.  */
+/* See also 'gcc/omp-oacc-neuter-broadcast.cc:struct parallel_g'.  */
 
 struct parallel
 {
@@ -3282,6 +3283,7 @@ typedef auto_vec<insn_bb_t> insn_bb_vec_t;
    partitioning mode of the function as a whole.  Populate MAP with
    head and tail blocks.  We also clear the BB visited flag, which is
    used when finding partitions.  */
+/* See also 'gcc/omp-oacc-neuter-broadcast.cc:omp_sese_split_blocks'.  */
 
 static void
 nvptx_split_blocks (bb_insn_map_t *map)
@@ -3383,6 +3385,7 @@ nvptx_discover_pre (basic_block block, int expected)
 }
 
 /* Dump this parallel and all its inner parallels.  */
+/* See also 'gcc/omp-oacc-neuter-broadcast.cc:omp_sese_dump_pars'.  */
 
 static void
 nvptx_dump_pars (parallel *par, unsigned depth)
@@ -3408,6 +3411,7 @@ nvptx_dump_pars (parallel *par, unsigned depth)
 /* If BLOCK contains a fork/join marker, process it to create or
    terminate a loop structure.  Add this block to the current loop,
    and then walk successor blocks.   */
+/* See also 'gcc/omp-oacc-neuter-broadcast.cc:omp_sese_find_par'.  */
 
 static parallel *
 nvptx_find_par (bb_insn_map_t *map, parallel *par, basic_block block)
@@ -3488,6 +3492,7 @@ nvptx_find_par (bb_insn_map_t *map, parallel *par, basic_block block)
    to head & tail markers, discovered when splitting blocks.  This
    speeds up the discovery.  We rely on the BB visited flag having
    been cleared when splitting blocks.  */
+/* See also 'gcc/omp-oacc-neuter-broadcast.cc:omp_sese_discover_pars'.  */
 
 static parallel *
 nvptx_discover_pars (bb_insn_map_t *map)
diff --git a/gcc/omp-low.c b/gcc/omp-low.c
index 2f735bcde9c..926087da701 100644
--- a/gcc/omp-low.c
+++ b/gcc/omp-low.c
@@ -615,6 +615,8 @@ omp_copy_decl_1 (tree var, omp_context *ctx)
 
 /* Build COMPONENT_REF and set TREE_THIS_VOLATILE and TREE_READONLY on it
    as appropriate.  */
+/* See also 'gcc/omp-oacc-neuter-broadcast.cc:oacc_build_component_ref'.  */
+
 static tree
 omp_build_component_ref (tree obj, tree field)
 {
diff --git a/gcc/omp-oacc-neuter-broadcast.cc b/gcc/omp-oacc-neuter-broadcast.cc
index 0f6ba885c6c..f8555380451 100644
--- a/gcc/omp-oacc-neuter-broadcast.cc
+++ b/gcc/omp-oacc-neuter-broadcast.cc
@@ -56,6 +56,7 @@
 
 /* Loop structure of the function.  The entire function is described as
    a NULL loop.  */
+/* Adapted from 'gcc/config/nvptx/nvptx.c:struct parallel'.  */
 
 struct parallel_g
 {
@@ -183,6 +184,7 @@ omp_sese_active_worker_call (gcall *call)
    partitioning mode of the function as a whole.  Populate MAP with
    head and tail blocks.  We also clear the BB visited flag, which is
    used when finding partitions.  */
+/* Adapted from 'gcc/config/nvptx/nvptx.c:nvptx_split_blocks'.  */
 
 static void
 omp_sese_split_blocks (bb_stmt_map_t *map)
@@ -341,6 +343,7 @@ mask_name (unsigned mask)
 }
 
 /* Dump this parallel and all its inner parallels.  */
+/* Adapted from 'gcc/config/nvptx/nvptx.c:nvptx_dump_pars'.  */
 
 static void
 omp_sese_dump_pars (parallel_g *par, unsigned depth)
@@ -366,6 +369,7 @@ omp_sese_dump_pars (parallel_g *par, unsigned depth)
 /* If BLOCK contains a fork/join marker, process it to create or
    terminate a loop structure.  Add this block to the current loop,
    and then walk successor blocks.   */
+/* Adapted from 'gcc/config/nvptx/nvptx.c:nvptx_find_par'.  */
 
 static parallel_g *
 omp_sese_find_par (bb_stmt_map_t *map, parallel_g *par, basic_block block)
@@ -471,6 +475,7 @@ walk_successors:
    to head & tail markers, discovered when splitting blocks.  This
    speeds up the discovery.  We rely on the BB visited flag having
    been cleared when splitting blocks.  */
+/* Adapted from 'gcc/config/nvptx/nvptx.c:nvptx_discover_pars'.  */
 
 static parallel_g *
 omp_sese_discover_pars (bb_stmt_map_t *map)
@@ -931,7 +936,9 @@ worker_single_simple (basic_block from, basic_block to,
   update_stmt (acc_bar);
 }
 
-/* This is a copied and renamed omp-low.c:omp_build_component_ref.  */
+/* Build COMPONENT_REF and set TREE_THIS_VOLATILE and TREE_READONLY on it
+   as appropriate.  */
+/* Adapted from 'gcc/omp-low.c:omp_build_component_ref'.  */
 
 static tree
 oacc_build_component_ref (tree obj, tree field)