28809522800

Committed 06 Jul 2026 05:12PM UTC coverage: 62.882% (-0.08%) from 62.96%

Build # 28809522800

Build Type

Pull #843

github

Committed by

web-flow

Commit Message

Merge beb5b23d7 into 95ea95f1f

Pull Request Pull Request #843: adds type_ids for Element classes and a human-readable element_type

Coverage Stats

413 of 587 new or added lines in 121 files covered. (70.36%)

74 existing lines in 6 files now uncovered.

40564 of 64508 relevant lines covered (62.88%)

961.48 hits per line

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54.72

/opt/src/passes/offloading/gpu_tiling_pass.cpp

#include "sdfg/passes/offloading/gpu_tiling_pass.h"

#include "sdfg/analysis/loop_analysis.h"
#include "sdfg/analysis/users.h"
#include "sdfg/structured_control_flow/structured_loop.h"
#include "sdfg/targets/cuda/cuda.h"
#include "sdfg/targets/rocm/rocm.h"
#include "sdfg/transformations/loop_tiling.h"
#include "sdfg/transformations/offloading/gpu_tiling.h"
#include "sdfg/transformations/offloading/kernel_local_storage.h"

namespace sdfg {
namespace passes {

GPUTilingPass::GPUTilingPass(const std::vector<structured_control_flow::Map*>& maps, size_t tile_size)
    : maps_(maps), tile_size_(tile_size) {}

bool GPUTilingPass::run_pass(builder::StructuredSDFGBuilder& builder, analysis::AnalysisManager& analysis_manager) {
    if (maps_.empty()) {
        return false;
    }

    auto& loop_analysis = analysis_manager.get<analysis::LoopAnalysis>();

    // Phase 1: Collect all applicable tiling targets
    std::vector<structured_control_flow::StructuredLoop*> candidates;
    auto& users = analysis_manager.get<analysis::Users>();

    // Find targets for normal loop tiling
    for (auto* map : maps_) {
        for (auto* descendant : loop_analysis.descendants(map)) {
            auto* struc_loop = dynamic_cast<structured_control_flow::StructuredLoop*>(descendant);
            if (!struc_loop) continue;


            // Pre-filter: check if any container used in the loop is a KLS candidate
            analysis::UsersView users_view(users, struc_loop->root());
            bool has_kls_candidate = false;
            for (auto& use : users_view.reads()) {
                auto element = use->element();
                if (!dynamic_cast<data_flow::AccessNode*>(element)) {
                    continue;
                }
                auto access_node = dynamic_cast<data_flow::AccessNode*>(element);
                if (transformations::KernelLocalStorage::
                        is_candidate(*struc_loop, access_node->data(), builder, analysis_manager)) {
                    has_kls_candidate = true;
                    break;
                }
            }
            if (!has_kls_candidate) continue;

            transformations::LoopTiling tiling(*struc_loop, tile_size_);
            if (tiling.can_be_applied(builder, analysis_manager)) {
                candidates.push_back(struc_loop);
            }
        }
    }

    std::vector<structured_control_flow::StructuredLoop*> tilable_loops;

    for (auto* map : candidates) {
        for (auto* descendant : loop_analysis.descendants(map)) {
            if (auto* target_loop = dynamic_cast<structured_control_flow::StructuredLoop*>(descendant)) {
                transformations::GPUTiling tiling(*target_loop, tile_size_);
                if (tiling.can_be_applied(builder, analysis_manager)) {
                    tilable_loops.push_back(target_loop);
                }
            }
        }
    }

    if (tilable_loops.empty()) {
        return false;
    }

    // Phase 2: Apply all tilings
    for (auto* target_loop : tilable_loops) {
        transformations::GPUTiling tiling(*target_loop, tile_size_);
        tiling.apply(builder, analysis_manager);
    }

    return true;
}

} // namespace passes
} // namespace sdfg

1	#include "sdfg/passes/offloading/gpu_tiling_pass.h"
2
3	#include "sdfg/analysis/loop_analysis.h"
4	#include "sdfg/analysis/users.h"
5	#include "sdfg/structured_control_flow/structured_loop.h"
6	#include "sdfg/targets/cuda/cuda.h"
7	#include "sdfg/targets/rocm/rocm.h"
8	#include "sdfg/transformations/loop_tiling.h"
9	#include "sdfg/transformations/offloading/gpu_tiling.h"
10	#include "sdfg/transformations/offloading/kernel_local_storage.h"
11
12	namespace sdfg {
13	namespace passes {
14
15	GPUTilingPass::GPUTilingPass(const std::vector<structured_control_flow::Map*>& maps, size_t tile_size)
16	: maps_(maps), tile_size_(tile_size) {}	6✔
17
18	bool GPUTilingPass::run_pass(builder::StructuredSDFGBuilder& builder, analysis::AnalysisManager& analysis_manager) {	6✔
19	if (maps_.empty()) {	6✔
20	return false;	×
21	}	×
22
23	auto& loop_analysis = analysis_manager.get<analysis::LoopAnalysis>();	6✔
24
25	// Phase 1: Collect all applicable tiling targets
26	std::vector<structured_control_flow::StructuredLoop*> candidates;	6✔
27	auto& users = analysis_manager.get<analysis::Users>();	6✔
28
29	// Find targets for normal loop tiling
30	for (auto* map : maps_) {	16✔
31	for (auto* descendant : loop_analysis.descendants(map)) {	16✔
32	auto* struc_loop = dynamic_cast<structured_control_flow::StructuredLoop*>(descendant);	2✔
33	if (!struc_loop) continue;	2✔
34
35
36	// Pre-filter: check if any container used in the loop is a KLS candidate
37	analysis::UsersView users_view(users, struc_loop->root());	2✔
38	bool has_kls_candidate = false;	2✔
39	for (auto& use : users_view.reads()) {	10✔
40	auto element = use->element();	10✔
41	if (!dynamic_cast<data_flow::AccessNode*>(element)) {	10✔
42	continue;	8✔
43	}	8✔
44	auto access_node = dynamic_cast<data_flow::AccessNode*>(element);	2✔
45	if (transformations::KernelLocalStorage::	2✔
46	is_candidate(*struc_loop, access_node->data(), builder, analysis_manager)) {	2✔
47	has_kls_candidate = true;	×
48	break;	×
49	}	×
50	}	2✔
51	if (!has_kls_candidate) continue;	2✔
52
53	transformations::LoopTiling tiling(*struc_loop, tile_size_);	×
54	if (tiling.can_be_applied(builder, analysis_manager)) {	×
55	candidates.push_back(struc_loop);	×
56	}	×
57	}	×
58	}	16✔
59
60	std::vector<structured_control_flow::StructuredLoop*> tilable_loops;	6✔
61
62	for (auto* map : candidates) {	6✔
63	for (auto* descendant : loop_analysis.descendants(map)) {	×
NEW 64	if (auto* target_loop = dynamic_cast<structured_control_flow::StructuredLoop*>(descendant)) {	×
65	transformations::GPUTiling tiling(*target_loop, tile_size_);	×
66	if (tiling.can_be_applied(builder, analysis_manager)) {	×
67	tilable_loops.push_back(target_loop);	×
68	}	×
69	}	×
70	}	×
71	}	×
72
73	if (tilable_loops.empty()) {	6✔
74	return false;	6✔
75	}	6✔
76
77	// Phase 2: Apply all tilings
78	for (auto* target_loop : tilable_loops) {	×
79	transformations::GPUTiling tiling(*target_loop, tile_size_);	×
80	tiling.apply(builder, analysis_manager);	×
81	}	×
82
83	return true;	×
84	}	6✔
85
86	} // namespace passes
87	} // namespace sdfg

daisytuner / docc / 28809522800

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