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[Flang][OpenMP][MLIR] Initial declare target to for variables implementation #119589

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While the infrastructure for declare target to/enter and link for variables exists in the MLIR dialect and at the Flang level, the current lowering from MLIR -> LLVM IR isn't in place, it's only in place for variables that have the link clause applied.

This PR aims to extend that lowering to an initial implementation that incorporates declare target to as well, which primarily requires changes in the OpenMPToLLVMIRTranslation phase. However, a minor addition to the OpenMP dialect was required to extend the declare target enumerator to include a default None field as well.

This also requires a minor change to the Flang lowering's MapInfoFinlization.cpp pass to alter the map type for descriptors to deal with cases where a variable is marked declare to. Currently, when a descriptor variable is mapped declare target to the descriptor component can become attatched, and cannot be updated, this results in issues when an unusual allocation range is specified (effectively an off-by X error). The current solution is to map the descriptor always, as we always require an up-to-date version of this data. However, this also requires an interlinked PR that adds a more intricate type of mapping of structures/record types that clang currently implements, to circumvent the overwriting of the pointer in the descriptor.

3/3 required PRs to enable declare target to mapping, this PR should pass all tests and provide an all green CI.

Co-authored-by: Raghu Maddhipatla [email protected]

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llvmbot commented Dec 11, 2024 •
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Author: None (agozillon)

Changes

While the infrastructure for declare target to/enter and link for variables exists in the MLIR dialect and at the Flang level, the current lowering from MLIR -> LLVM IR isn't in place, it's only in place for variables that have the link clause applied.

This PR aims to extend that lowering to an initial implementation that incorporates declare target to as well, which primarily requires changes in the OpenMPToLLVMIRTranslation phase. However, a minor addition to the OpenMP dialect was required to extend the declare target enumerator to include a default None field as well.

This also requires a minor change to the Flang lowering's MapInfoFinlization.cpp pass to alter the map type for descriptors to deal with cases where a variable is marked declare to. Currently, when a descriptor variable is mapped declare target to the descriptor component can become attatched, and cannot be updated, this results in issues when an unusual allocation range is specified (effectively an off-by X error). The current solution is to map the descriptor always, as we always require an up-to-date version of this data. However, this also requires an interlinked PR that adds a more intricate type of mapping of structures/record types that clang currently implements, to circumvent the overwriting of the pointer in the descriptor.

3/3 required PRs to enable declare target to mapping, this PR should pass all tests and provide an all green CI.

Co-authored-by: Raghu Maddhipatla [email protected]

Patch is 68.85 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/119589.diff

15 Files Affected:

  • (modified) flang/lib/Optimizer/OpenMP/MapInfoFinalization.cpp (+4-2)
  • (modified) flang/test/Lower/OpenMP/allocatable-array-bounds.f90 (+3-3)
  • (modified) flang/test/Lower/OpenMP/allocatable-map.f90 (+1-1)
  • (modified) flang/test/Lower/OpenMP/array-bounds.f90 (+1-1)
  • (modified) flang/test/Lower/OpenMP/declare-target-link-tarop-cap.f90 (+2-2)
  • (modified) flang/test/Lower/OpenMP/derived-type-allocatable-map.f90 (+6-6)
  • (modified) flang/test/Lower/OpenMP/target.f90 (+2-2)
  • (modified) flang/test/Transforms/omp-map-info-finalization.fir (+10-10)
  • (modified) mlir/include/mlir/Dialect/OpenMP/OpenMPEnums.td (+5-3)
  • (modified) mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp (+101-26)
  • (added) mlir/test/Target/LLVMIR/omptarget-declare-target-to-device.mlir (+38)
  • (added) mlir/test/Target/LLVMIR/omptarget-declare-target-to-host.mlir (+35)
  • (added) offload/test/offloading/fortran/declare-target-to-allocatable-vars-in-target-with-update.f90 (+52)
  • (added) offload/test/offloading/fortran/declare-target-to-vars-target-region-and-update.f90 (+36)
  • (added) offload/test/offloading/fortran/declare-target-to-zero-index-allocatable-target-map.f90 (+30)
diff --git a/flang/lib/Optimizer/OpenMP/MapInfoFinalization.cpp b/flang/lib/Optimizer/OpenMP/MapInfoFinalization.cpp
index 4575c90e34acdd..e2089709b49d5c 100644
--- a/flang/lib/Optimizer/OpenMP/MapInfoFinalization.cpp
+++ b/flang/lib/Optimizer/OpenMP/MapInfoFinalization.cpp
@@ -237,8 +237,10 @@ class MapInfoFinalizationPass
     return llvm::to_underlying(
         hasImplicitMap
             ? llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_TO |
-                  llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_IMPLICIT
-            : llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_TO);
+                  llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_IMPLICIT |
+                  llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_ALWAYS
+            : llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_TO |
+                  llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_ALWAYS);
   }
 
   mlir::omp::MapInfoOp genDescriptorMemberMaps(mlir::omp::MapInfoOp op,
diff --git a/flang/test/Lower/OpenMP/allocatable-array-bounds.f90 b/flang/test/Lower/OpenMP/allocatable-array-bounds.f90
index e162c5a2d6d69f..10fdcc244a59fb 100644
--- a/flang/test/Lower/OpenMP/allocatable-array-bounds.f90
+++ b/flang/test/Lower/OpenMP/allocatable-array-bounds.f90
@@ -24,7 +24,7 @@
 !HOST: %[[BOUNDS_1:.*]] = omp.map.bounds lower_bound(%[[LB_1]] : index) upper_bound(%[[UB_1]] : index) extent(%[[BOX_3]]#1 : index) stride(%[[BOX_2]]#2 : index) start_idx(%[[BOX_1]]#0 : index) {stride_in_bytes = true}
 !HOST: %[[VAR_PTR_PTR:.*]] = fir.box_offset %[[DECLARE_1]]#1 base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !HOST: %[[MAP_INFO_MEMBER:.*]] = omp.map.info var_ptr(%[[DECLARE_1]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.array<?xi32>) var_ptr_ptr(%[[VAR_PTR_PTR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS_1]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {name = ""}    
-!HOST: %[[MAP_INFO_1:.*]] = omp.map.info var_ptr(%[[DECLARE_1]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {name = "sp_read(2:5)"}
+!HOST: %[[MAP_INFO_1:.*]] = omp.map.info var_ptr(%[[DECLARE_1]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(always, to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {name = "sp_read(2:5)"}
 
 !HOST: %[[LOAD_3:.*]] = fir.load %[[DECLARE_2]]#0 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
 !HOST: %[[LOAD_4:.*]] = fir.load %[[DECLARE_2]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
@@ -42,7 +42,7 @@
 !HOST: %[[BOUNDS_2:.*]] = omp.map.bounds lower_bound(%[[LB_2]] : index) upper_bound(%[[UB_2]] : index) extent(%[[BOX_5]]#1 : index) stride(%[[BOX_4]]#2 : index) start_idx(%[[BOX_3]]#0 : index) {stride_in_bytes = true}
 !HOST: %[[VAR_PTR_PTR:.*]] = fir.box_offset %[[DECLARE_2]]#1 base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !HOST: %[[MAP_INFO_MEMBER:.*]] = omp.map.info var_ptr(%[[DECLARE_2]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.array<?xi32>) var_ptr_ptr(%[[VAR_PTR_PTR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS_2]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {name = ""}    
-!HOST: %[[MAP_INFO_2:.*]] = omp.map.info var_ptr(%[[DECLARE_2]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {name = "sp_write(2:5)"}
+!HOST: %[[MAP_INFO_2:.*]] = omp.map.info var_ptr(%[[DECLARE_2]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(always, to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {name = "sp_write(2:5)"}
 
 subroutine read_write_section()
     integer, allocatable :: sp_read(:)
@@ -81,7 +81,7 @@ module assumed_allocatable_array_routines
 !HOST: %[[BOUNDS:.*]] = omp.map.bounds lower_bound(%[[LB]] : index) upper_bound(%[[UB]] : index) extent(%[[BOX_3]]#1 : index) stride(%[[BOX_2]]#2 : index) start_idx(%[[BOX_1]]#0 : index) {stride_in_bytes = true}
 !HOST: %[[VAR_PTR_PTR:.*]] = fir.box_offset %[[DECLARE]]#1 base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !HOST: %[[MAP_INFO_MEMBER:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.array<?xi32>) var_ptr_ptr(%[[VAR_PTR_PTR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {name = ""}    
-!HOST: %[[MAP_INFO:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {name = "arr_read_write(2:5)"}
+!HOST: %[[MAP_INFO:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(always, to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {name = "arr_read_write(2:5)"}
 subroutine assumed_shape_array(arr_read_write)
     integer, allocatable, intent(inout) :: arr_read_write(:)
 
diff --git a/flang/test/Lower/OpenMP/allocatable-map.f90 b/flang/test/Lower/OpenMP/allocatable-map.f90
index 64b000a4950c2c..2726938c77740f 100644
--- a/flang/test/Lower/OpenMP/allocatable-map.f90
+++ b/flang/test/Lower/OpenMP/allocatable-map.f90
@@ -3,7 +3,7 @@
 !HLFIRDIALECT: %[[POINTER:.*]]:2 = hlfir.declare %0 {fortran_attrs = #fir.var_attrs<pointer>, uniq_name = "_QFpointer_routineEpoint"} : (!fir.ref<!fir.box<!fir.ptr<i32>>>) -> (!fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.ref<!fir.box<!fir.ptr<i32>>>)
 !HLFIRDIALECT: %[[BOX_OFF:.*]] = fir.box_offset %[[POINTER]]#1 base_addr : (!fir.ref<!fir.box<!fir.ptr<i32>>>) -> !fir.llvm_ptr<!fir.ref<i32>>
 !HLFIRDIALECT: %[[POINTER_MAP_MEMBER:.*]] = omp.map.info var_ptr(%[[POINTER]]#1 : !fir.ref<!fir.box<!fir.ptr<i32>>>, i32) var_ptr_ptr(%[[BOX_OFF]] : !fir.llvm_ptr<!fir.ref<i32>>)  map_clauses(tofrom) capture(ByRef) -> !fir.llvm_ptr<!fir.ref<i32>> {name = ""}
-!HLFIRDIALECT: %[[POINTER_MAP:.*]] = omp.map.info var_ptr(%[[POINTER]]#1 : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.box<!fir.ptr<i32>>) map_clauses(to) capture(ByRef) members(%[[POINTER_MAP_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<i32>>) -> !fir.ref<!fir.box<!fir.ptr<i32>>> {name = "point"}
+!HLFIRDIALECT: %[[POINTER_MAP:.*]] = omp.map.info var_ptr(%[[POINTER]]#1 : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.box<!fir.ptr<i32>>) map_clauses(always, to) capture(ByRef) members(%[[POINTER_MAP_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<i32>>) -> !fir.ref<!fir.box<!fir.ptr<i32>>> {name = "point"}
 !HLFIRDIALECT: omp.target map_entries(%[[POINTER_MAP]] -> {{.*}}, %[[POINTER_MAP_MEMBER]] -> {{.*}} : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.llvm_ptr<!fir.ref<i32>>) {
 subroutine pointer_routine()
     integer, pointer :: point 
diff --git a/flang/test/Lower/OpenMP/array-bounds.f90 b/flang/test/Lower/OpenMP/array-bounds.f90
index 78fa81567ca54c..0c34aa1243ee7c 100644
--- a/flang/test/Lower/OpenMP/array-bounds.f90
+++ b/flang/test/Lower/OpenMP/array-bounds.f90
@@ -52,7 +52,7 @@ module assumed_array_routines
 !HOST: %[[BOUNDS:.*]] = omp.map.bounds   lower_bound(%[[C3]] : index) upper_bound(%[[C4]] : index) extent(%[[DIMS1]]#1 : index) stride(%[[DIMS0]]#2 : index) start_idx(%[[C0]] : index) {stride_in_bytes = true}
 !HOST: %[[VAR_PTR_PTR:.*]] = fir.box_offset %0 base_addr : (!fir.ref<!fir.box<!fir.array<?xi32>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !HOST: %[[MAP_INFO_MEMBER:.*]] = omp.map.info var_ptr(%[[INTERMEDIATE_ALLOCA]] : !fir.ref<!fir.box<!fir.array<?xi32>>>, !fir.array<?xi32>) var_ptr_ptr(%[[VAR_PTR_PTR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {name = ""}
-!HOST: %[[MAP:.*]] = omp.map.info var_ptr(%[[INTERMEDIATE_ALLOCA]] : !fir.ref<!fir.box<!fir.array<?xi32>>>, !fir.box<!fir.array<?xi32>>) map_clauses(to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.array<?xi32>> {name = "arr_read_write(2:5)"}
+!HOST: %[[MAP:.*]] = omp.map.info var_ptr(%[[INTERMEDIATE_ALLOCA]] : !fir.ref<!fir.box<!fir.array<?xi32>>>, !fir.box<!fir.array<?xi32>>) map_clauses(always, to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.array<?xi32>> {name = "arr_read_write(2:5)"}
 !HOST: omp.target   map_entries(%[[MAP]] -> %{{.*}}, {{.*}} -> {{.*}}, %[[MAP_INFO_MEMBER]] -> %{{.*}} : !fir.ref<!fir.array<?xi32>>, !fir.ref<i32>, !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) {
     subroutine assumed_shape_array(arr_read_write)
             integer, intent(inout) :: arr_read_write(:)
diff --git a/flang/test/Lower/OpenMP/declare-target-link-tarop-cap.f90 b/flang/test/Lower/OpenMP/declare-target-link-tarop-cap.f90
index cfdcd9eda82d1d..0fba1ee9a293d8 100644
--- a/flang/test/Lower/OpenMP/declare-target-link-tarop-cap.f90
+++ b/flang/test/Lower/OpenMP/declare-target-link-tarop-cap.f90
@@ -35,7 +35,7 @@ program test_link
 
   allocate(test_ptr1)
   test_ptr1 = 1
-  !CHECK-DAG: {{%.*}} = omp.map.info var_ptr({{%.*}} : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.box<!fir.ptr<i32>>) map_clauses(implicit, to) capture(ByRef) members({{%.*}} : !fir.llvm_ptr<!fir.ref<i32>>) -> !fir.ref<!fir.box<!fir.ptr<i32>>> {name = "test_ptr1"}
+  !CHECK-DAG: {{%.*}} = omp.map.info var_ptr({{%.*}} : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.box<!fir.ptr<i32>>) map_clauses(always, implicit, to) capture(ByRef) members({{%.*}} : !fir.llvm_ptr<!fir.ref<i32>>) -> !fir.ref<!fir.box<!fir.ptr<i32>>> {name = "test_ptr1"}
   !$omp target
     test_ptr1 = test_ptr1 + 1
   !$omp end target
@@ -46,7 +46,7 @@ program test_link
   !$omp end target
 
 
-  !CHECK-DAG: {{%.*}} = omp.map.info var_ptr({{%.*}} : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.box<!fir.ptr<i32>>) map_clauses(implicit, to) capture(ByRef) members({{%.*}} : !fir.llvm_ptr<!fir.ref<i32>>) -> !fir.ref<!fir.box<!fir.ptr<i32>>> {name = "test_ptr2"}
+  !CHECK-DAG: {{%.*}} = omp.map.info var_ptr({{%.*}} : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.box<!fir.ptr<i32>>) map_clauses(always, implicit, to) capture(ByRef) members({{%.*}} : !fir.llvm_ptr<!fir.ref<i32>>) -> !fir.ref<!fir.box<!fir.ptr<i32>>> {name = "test_ptr2"}
   test_ptr2 => test_target
   !$omp target
     test_ptr2 = test_ptr2 + 1
diff --git a/flang/test/Lower/OpenMP/derived-type-allocatable-map.f90 b/flang/test/Lower/OpenMP/derived-type-allocatable-map.f90
index 47bcf2a7229ea5..e6ed245d6508e8 100644
--- a/flang/test/Lower/OpenMP/derived-type-allocatable-map.f90
+++ b/flang/test/Lower/OpenMP/derived-type-allocatable-map.f90
@@ -7,7 +7,7 @@
 !CHECK: %[[MEMBER_COORD:.*]] = fir.coordinate_of %[[DECLARE]]#0, %[[MEMBER_INDEX]] : (!fir.ref<!fir.type<[[ONE_LAYER_TY]]>>, index) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
 !CHECK: %[[MEMBER_BASE_ADDR:.*]] = fir.box_offset %[[MEMBER_COORD]] base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !CHECK: %[[MAP_MEMBER_BASE_ADDR:.*]] = omp.map.info var_ptr(%[[MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.array<?xi32>) var_ptr_ptr(%[[MEMBER_BASE_ADDR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {{.*}}
-!CHECK: %[[MAP_MEMBER_DESCRIPTOR:.*]] = omp.map.info var_ptr(%[[MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(to) capture(ByRef) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {{.*}}
+!CHECK: %[[MAP_MEMBER_DESCRIPTOR:.*]] = omp.map.info var_ptr(%[[MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(always, to) capture(ByRef) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {{.*}}
 !CHECK: %[[MAP_PARENT:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.type<[[ONE_LAYER_TY]]>>, !fir.type<[[ONE_LAYER_TY]]>) map_clauses(tofrom) capture(ByRef) members(%[[MAP_MEMBER_DESCRIPTOR]], %[[MAP_MEMBER_BASE_ADDR]] : [4], [4, 0] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.type<[[ONE_LAYER_TY]]>> {{{.*}} partial_map = true}
 !CHECK:   omp.target map_entries(%[[MAP_PARENT]] -> %[[ARG0:.*]], %[[MAP_MEMBER_DESCRIPTOR]] -> %[[ARG1:.*]], %[[MAP_MEMBER_BASE_ADDR]] -> %[[ARG2:.*]] : !fir.ref<!fir.type<[[ONE_LAYER_TY]]>>, !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) {
 !CHECK:        %{{.*}}:2 = hlfir.declare %[[ARG0]] {{{.*}}} : (!fir.ref<!fir.type<[[ONE_LAYER_TY]]>>) -> (!fir.ref<!fir.type<[[ONE_LAYER_TY]]>>, !fir.ref<!fir.type<[[ONE_LAYER_TY]]>>)
@@ -38,14 +38,14 @@ subroutine dtype_alloca_map_op_block()
 !CHECK: %[[MEMBER_COORD:.*]] = fir.coordinate_of %[[LOAD_DTYPE]], %[[MEMBER_INDEX]] : (!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>, index) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
 !CHECK: %[[MEMBER_BASE_ADDR:.*]] = fir.box_offset %[[MEMBER_COORD]] base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !CHECK: %[[MAP_MEMBER_BASE_ADDR:.*]] = omp.map.info var_ptr(%[[MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.array<?xi32>) var_ptr_ptr(%[[MEMBER_BASE_ADDR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {{.*}}
-!CHECK: %[[MAP_MEMBER_DESC:.*]] = omp.map.info var_ptr(%[[MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(to) capture(ByRef) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {{.*}}
+!CHECK: %[[MAP_MEMBER_DESC:.*]] = omp.map.info var_ptr(%[[MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(always, to) capture(ByRef) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {{.*}}
 !CHECK: %[[LOAD_DTYPE:.*]] = fir.load %[[DECLARE]]#0 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>
 !CHECK: %[[MEMBER_COORD:.*]] = arith.constant 5 : index
 !CHECK: %[[REGULAR_MEMBER:.*]] = fir.coordinate_of %[[LOAD_DTYPE]], %[[MEMBER_COORD]] : (!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>, index) -> !fir.ref<i32>
 !CHECK: %[[MAP_REGULAR_MEMBER:.*]] = omp.map.info var_ptr(%[[REGULAR_MEMBER]] : !fir.ref<i32>, i32) map_clauses(tofrom) capture(ByRef) -> !fir.ref<i32> {{.*}}
 !CHECK: %[[DTYPE_BASE_ADDR:.*]] = fir.box_offset %[[DECLARE]]#1 base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>>>
 !CHECK: %[[MAP_DTYPE_BASE_ADDR:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>, !fir.type<[[REC_TY]]>) var_ptr_ptr(%[[DTYPE_BASE_ADDR]] : !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>>>) map_clauses(tofrom) capture(ByRef) -> !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>>> {{.*}}
-!CHECK: %[[MAP_DTYPE_DESC:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>, !fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>) map_clauses(to) capture(ByRef) members(%[[MAP_DTYPE_BASE_ADDR]], %[[MAP_MEMBER_DESC]], %[[MAP_MEMBER_BASE_ADDR]], %[[MAP_REGULAR_MEMBER]] : [0], [0, 4], [0, 4, 0], [0, 5] : !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>>>, !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>, !fir.ref<i32>) -> !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>> {{.*}}
+!CHECK: %[[MAP_DTYPE_DESC:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>, !fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>) map_clauses(always, to) capture(ByRef) members(%[[MAP_DTYPE_BASE_ADDR]], %[[MAP_MEMBER_DESC]], %[[MAP_MEMBER_BASE_ADDR]], %[[MAP_REGULAR_MEMBER]] : [0], [0, 4], [0, 4, 0], [0, 5] : !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>>>, !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>, !fir.ref<i32>) -> !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>> {{.*}}
 !CHECK: omp.target map_entries(%[[MAP_DTYPE_DESC]] -> %[[ARG0:.*]], %[[MAP_DTYPE_BASE_ADDR]] -> %[[ARG1:.*]], %[[MAP_MEMBER_DESC]] -> %[[ARG2:.*]], %[[MAP_MEMBER_BASE_ADDR]] -> %[[ARG3:.*]], %[[MAP_REGULAR_MEMBER]] -> %[[ARG4:.*]] : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>, !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>>>, !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>, !fir.ref<i32>) {
 !CHECK:  %{{.*}}:2 = hlfir.declare %[[ARG0]] {{{.*}}} : (!fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>) -> (!fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>, !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>)
 subroutine alloca_dtype_op_block_add()
@@ -79,7 +79,7 @@ subroutine alloca_dtype_op_block_add()
 !CHECK: %[[NESTED_MEMBER_COORD:.*]] = fir.coordinate_of %[[NESTED_DTYPE_COORD]], %[[NESTED_MEMBER_INDEX]] : (!fir.ref<!fir.type<[[REC_TY2]]>>, index) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
 !CHECK: %[[NESTED_MEMBER_BASE_ADDR:.*]] = fir.box_offset %[[NESTED_MEMBER_COORD]] base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !CHECK: %[[MAP_NESTED_MEMBER_BASE_ADDR:.*]] = omp.map.info var_ptr(%[[NESTED_MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.array<?xi32>) var_ptr_ptr(%[[NESTED_MEMBER_BASE_ADDR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {{.*}}
-!CHECK: %[[MAP_NESTED_MEMBER_COORD:.*]] = omp.map.info var_ptr(%[[NESTED_MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(to) capture(ByRef) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {{.*}}
+!CHECK: %[[MAP_NESTED_MEMBER_COORD:.*]] = omp.map.info var_ptr(%[[NESTED_MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(always, to) capture(ByRef) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {{.*}}
 !CHECK: %[[LOAD:.*]] = fir.load %[[DECLARE]]#0 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>}>>>>
 !CHECK: %[[NESTED_DTYPE_INDEX:.*]] = arith.constant 6 : index
 !CHECK: %[[NESTED_DTYPE_COORD:.*]] = fir.coordinate_of %[[LOAD]], %[[NESTED_DTYPE_INDEX]] : (!fir.box<!fir.heap<!fir.type<[[REC_TY]]>}>>>, index) -> !fir.ref<!fir.type<[[REC_TY2]]>>
@@ -88,7 +88,7 @@ subroutine alloca_dtype_op_block_add()
 !CHECK: %[[MAP_REGULAR_NESTED_MEMBER:.*]] = omp.map.info var_ptr(%[[REGULAR_NESTED_MEMBER_COORD]] : !fir.ref<i32>, i32) map_clauses(tofrom) capture(ByRef) -> !fir.ref<i32> {{.*}}
 !CHECK: %[[DTYPE_BASE_ADDR:.*]] = fir.box_offset %[[DECLARE]]#1 base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>}>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>}>>>
 !CHECK: %[[MAP_DTYPE_BASE_ADDR:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>}>>>>, !fir.type<[[REC_TY]]>}>) var_ptr_ptr(%[[DTYPE_BASE_ADDR]] : !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>}>>>) map_clauses(tofrom) capture(ByRef) -> !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>}>>> {{.*}}
-!CHECK: %[[MAP_DTYPE:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>}>>>>, !fir.box<!fir.heap<!f...
[truncated]

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llvmbot commented Dec 11, 2024

@llvm/pr-subscribers-mlir

Author: None (agozillon)

Changes

While the infrastructure for declare target to/enter and link for variables exists in the MLIR dialect and at the Flang level, the current lowering from MLIR -> LLVM IR isn't in place, it's only in place for variables that have the link clause applied.

This PR aims to extend that lowering to an initial implementation that incorporates declare target to as well, which primarily requires changes in the OpenMPToLLVMIRTranslation phase. However, a minor addition to the OpenMP dialect was required to extend the declare target enumerator to include a default None field as well.

This also requires a minor change to the Flang lowering's MapInfoFinlization.cpp pass to alter the map type for descriptors to deal with cases where a variable is marked declare to. Currently, when a descriptor variable is mapped declare target to the descriptor component can become attatched, and cannot be updated, this results in issues when an unusual allocation range is specified (effectively an off-by X error). The current solution is to map the descriptor always, as we always require an up-to-date version of this data. However, this also requires an interlinked PR that adds a more intricate type of mapping of structures/record types that clang currently implements, to circumvent the overwriting of the pointer in the descriptor.

3/3 required PRs to enable declare target to mapping, this PR should pass all tests and provide an all green CI.

Co-authored-by: Raghu Maddhipatla [email protected]

Patch is 68.85 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/119589.diff

15 Files Affected:

  • (modified) flang/lib/Optimizer/OpenMP/MapInfoFinalization.cpp (+4-2)
  • (modified) flang/test/Lower/OpenMP/allocatable-array-bounds.f90 (+3-3)
  • (modified) flang/test/Lower/OpenMP/allocatable-map.f90 (+1-1)
  • (modified) flang/test/Lower/OpenMP/array-bounds.f90 (+1-1)
  • (modified) flang/test/Lower/OpenMP/declare-target-link-tarop-cap.f90 (+2-2)
  • (modified) flang/test/Lower/OpenMP/derived-type-allocatable-map.f90 (+6-6)
  • (modified) flang/test/Lower/OpenMP/target.f90 (+2-2)
  • (modified) flang/test/Transforms/omp-map-info-finalization.fir (+10-10)
  • (modified) mlir/include/mlir/Dialect/OpenMP/OpenMPEnums.td (+5-3)
  • (modified) mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp (+101-26)
  • (added) mlir/test/Target/LLVMIR/omptarget-declare-target-to-device.mlir (+38)
  • (added) mlir/test/Target/LLVMIR/omptarget-declare-target-to-host.mlir (+35)
  • (added) offload/test/offloading/fortran/declare-target-to-allocatable-vars-in-target-with-update.f90 (+52)
  • (added) offload/test/offloading/fortran/declare-target-to-vars-target-region-and-update.f90 (+36)
  • (added) offload/test/offloading/fortran/declare-target-to-zero-index-allocatable-target-map.f90 (+30)
diff --git a/flang/lib/Optimizer/OpenMP/MapInfoFinalization.cpp b/flang/lib/Optimizer/OpenMP/MapInfoFinalization.cpp
index 4575c90e34acdd..e2089709b49d5c 100644
--- a/flang/lib/Optimizer/OpenMP/MapInfoFinalization.cpp
+++ b/flang/lib/Optimizer/OpenMP/MapInfoFinalization.cpp
@@ -237,8 +237,10 @@ class MapInfoFinalizationPass
     return llvm::to_underlying(
         hasImplicitMap
             ? llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_TO |
-                  llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_IMPLICIT
-            : llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_TO);
+                  llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_IMPLICIT |
+                  llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_ALWAYS
+            : llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_TO |
+                  llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_ALWAYS);
   }
 
   mlir::omp::MapInfoOp genDescriptorMemberMaps(mlir::omp::MapInfoOp op,
diff --git a/flang/test/Lower/OpenMP/allocatable-array-bounds.f90 b/flang/test/Lower/OpenMP/allocatable-array-bounds.f90
index e162c5a2d6d69f..10fdcc244a59fb 100644
--- a/flang/test/Lower/OpenMP/allocatable-array-bounds.f90
+++ b/flang/test/Lower/OpenMP/allocatable-array-bounds.f90
@@ -24,7 +24,7 @@
 !HOST: %[[BOUNDS_1:.*]] = omp.map.bounds lower_bound(%[[LB_1]] : index) upper_bound(%[[UB_1]] : index) extent(%[[BOX_3]]#1 : index) stride(%[[BOX_2]]#2 : index) start_idx(%[[BOX_1]]#0 : index) {stride_in_bytes = true}
 !HOST: %[[VAR_PTR_PTR:.*]] = fir.box_offset %[[DECLARE_1]]#1 base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !HOST: %[[MAP_INFO_MEMBER:.*]] = omp.map.info var_ptr(%[[DECLARE_1]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.array<?xi32>) var_ptr_ptr(%[[VAR_PTR_PTR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS_1]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {name = ""}    
-!HOST: %[[MAP_INFO_1:.*]] = omp.map.info var_ptr(%[[DECLARE_1]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {name = "sp_read(2:5)"}
+!HOST: %[[MAP_INFO_1:.*]] = omp.map.info var_ptr(%[[DECLARE_1]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(always, to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {name = "sp_read(2:5)"}
 
 !HOST: %[[LOAD_3:.*]] = fir.load %[[DECLARE_2]]#0 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
 !HOST: %[[LOAD_4:.*]] = fir.load %[[DECLARE_2]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
@@ -42,7 +42,7 @@
 !HOST: %[[BOUNDS_2:.*]] = omp.map.bounds lower_bound(%[[LB_2]] : index) upper_bound(%[[UB_2]] : index) extent(%[[BOX_5]]#1 : index) stride(%[[BOX_4]]#2 : index) start_idx(%[[BOX_3]]#0 : index) {stride_in_bytes = true}
 !HOST: %[[VAR_PTR_PTR:.*]] = fir.box_offset %[[DECLARE_2]]#1 base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !HOST: %[[MAP_INFO_MEMBER:.*]] = omp.map.info var_ptr(%[[DECLARE_2]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.array<?xi32>) var_ptr_ptr(%[[VAR_PTR_PTR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS_2]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {name = ""}    
-!HOST: %[[MAP_INFO_2:.*]] = omp.map.info var_ptr(%[[DECLARE_2]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {name = "sp_write(2:5)"}
+!HOST: %[[MAP_INFO_2:.*]] = omp.map.info var_ptr(%[[DECLARE_2]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(always, to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {name = "sp_write(2:5)"}
 
 subroutine read_write_section()
     integer, allocatable :: sp_read(:)
@@ -81,7 +81,7 @@ module assumed_allocatable_array_routines
 !HOST: %[[BOUNDS:.*]] = omp.map.bounds lower_bound(%[[LB]] : index) upper_bound(%[[UB]] : index) extent(%[[BOX_3]]#1 : index) stride(%[[BOX_2]]#2 : index) start_idx(%[[BOX_1]]#0 : index) {stride_in_bytes = true}
 !HOST: %[[VAR_PTR_PTR:.*]] = fir.box_offset %[[DECLARE]]#1 base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !HOST: %[[MAP_INFO_MEMBER:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.array<?xi32>) var_ptr_ptr(%[[VAR_PTR_PTR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {name = ""}    
-!HOST: %[[MAP_INFO:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {name = "arr_read_write(2:5)"}
+!HOST: %[[MAP_INFO:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(always, to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {name = "arr_read_write(2:5)"}
 subroutine assumed_shape_array(arr_read_write)
     integer, allocatable, intent(inout) :: arr_read_write(:)
 
diff --git a/flang/test/Lower/OpenMP/allocatable-map.f90 b/flang/test/Lower/OpenMP/allocatable-map.f90
index 64b000a4950c2c..2726938c77740f 100644
--- a/flang/test/Lower/OpenMP/allocatable-map.f90
+++ b/flang/test/Lower/OpenMP/allocatable-map.f90
@@ -3,7 +3,7 @@
 !HLFIRDIALECT: %[[POINTER:.*]]:2 = hlfir.declare %0 {fortran_attrs = #fir.var_attrs<pointer>, uniq_name = "_QFpointer_routineEpoint"} : (!fir.ref<!fir.box<!fir.ptr<i32>>>) -> (!fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.ref<!fir.box<!fir.ptr<i32>>>)
 !HLFIRDIALECT: %[[BOX_OFF:.*]] = fir.box_offset %[[POINTER]]#1 base_addr : (!fir.ref<!fir.box<!fir.ptr<i32>>>) -> !fir.llvm_ptr<!fir.ref<i32>>
 !HLFIRDIALECT: %[[POINTER_MAP_MEMBER:.*]] = omp.map.info var_ptr(%[[POINTER]]#1 : !fir.ref<!fir.box<!fir.ptr<i32>>>, i32) var_ptr_ptr(%[[BOX_OFF]] : !fir.llvm_ptr<!fir.ref<i32>>)  map_clauses(tofrom) capture(ByRef) -> !fir.llvm_ptr<!fir.ref<i32>> {name = ""}
-!HLFIRDIALECT: %[[POINTER_MAP:.*]] = omp.map.info var_ptr(%[[POINTER]]#1 : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.box<!fir.ptr<i32>>) map_clauses(to) capture(ByRef) members(%[[POINTER_MAP_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<i32>>) -> !fir.ref<!fir.box<!fir.ptr<i32>>> {name = "point"}
+!HLFIRDIALECT: %[[POINTER_MAP:.*]] = omp.map.info var_ptr(%[[POINTER]]#1 : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.box<!fir.ptr<i32>>) map_clauses(always, to) capture(ByRef) members(%[[POINTER_MAP_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<i32>>) -> !fir.ref<!fir.box<!fir.ptr<i32>>> {name = "point"}
 !HLFIRDIALECT: omp.target map_entries(%[[POINTER_MAP]] -> {{.*}}, %[[POINTER_MAP_MEMBER]] -> {{.*}} : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.llvm_ptr<!fir.ref<i32>>) {
 subroutine pointer_routine()
     integer, pointer :: point 
diff --git a/flang/test/Lower/OpenMP/array-bounds.f90 b/flang/test/Lower/OpenMP/array-bounds.f90
index 78fa81567ca54c..0c34aa1243ee7c 100644
--- a/flang/test/Lower/OpenMP/array-bounds.f90
+++ b/flang/test/Lower/OpenMP/array-bounds.f90
@@ -52,7 +52,7 @@ module assumed_array_routines
 !HOST: %[[BOUNDS:.*]] = omp.map.bounds   lower_bound(%[[C3]] : index) upper_bound(%[[C4]] : index) extent(%[[DIMS1]]#1 : index) stride(%[[DIMS0]]#2 : index) start_idx(%[[C0]] : index) {stride_in_bytes = true}
 !HOST: %[[VAR_PTR_PTR:.*]] = fir.box_offset %0 base_addr : (!fir.ref<!fir.box<!fir.array<?xi32>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !HOST: %[[MAP_INFO_MEMBER:.*]] = omp.map.info var_ptr(%[[INTERMEDIATE_ALLOCA]] : !fir.ref<!fir.box<!fir.array<?xi32>>>, !fir.array<?xi32>) var_ptr_ptr(%[[VAR_PTR_PTR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {name = ""}
-!HOST: %[[MAP:.*]] = omp.map.info var_ptr(%[[INTERMEDIATE_ALLOCA]] : !fir.ref<!fir.box<!fir.array<?xi32>>>, !fir.box<!fir.array<?xi32>>) map_clauses(to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.array<?xi32>> {name = "arr_read_write(2:5)"}
+!HOST: %[[MAP:.*]] = omp.map.info var_ptr(%[[INTERMEDIATE_ALLOCA]] : !fir.ref<!fir.box<!fir.array<?xi32>>>, !fir.box<!fir.array<?xi32>>) map_clauses(always, to) capture(ByRef) members(%[[MAP_INFO_MEMBER]] : [0] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.array<?xi32>> {name = "arr_read_write(2:5)"}
 !HOST: omp.target   map_entries(%[[MAP]] -> %{{.*}}, {{.*}} -> {{.*}}, %[[MAP_INFO_MEMBER]] -> %{{.*}} : !fir.ref<!fir.array<?xi32>>, !fir.ref<i32>, !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) {
     subroutine assumed_shape_array(arr_read_write)
             integer, intent(inout) :: arr_read_write(:)
diff --git a/flang/test/Lower/OpenMP/declare-target-link-tarop-cap.f90 b/flang/test/Lower/OpenMP/declare-target-link-tarop-cap.f90
index cfdcd9eda82d1d..0fba1ee9a293d8 100644
--- a/flang/test/Lower/OpenMP/declare-target-link-tarop-cap.f90
+++ b/flang/test/Lower/OpenMP/declare-target-link-tarop-cap.f90
@@ -35,7 +35,7 @@ program test_link
 
   allocate(test_ptr1)
   test_ptr1 = 1
-  !CHECK-DAG: {{%.*}} = omp.map.info var_ptr({{%.*}} : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.box<!fir.ptr<i32>>) map_clauses(implicit, to) capture(ByRef) members({{%.*}} : !fir.llvm_ptr<!fir.ref<i32>>) -> !fir.ref<!fir.box<!fir.ptr<i32>>> {name = "test_ptr1"}
+  !CHECK-DAG: {{%.*}} = omp.map.info var_ptr({{%.*}} : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.box<!fir.ptr<i32>>) map_clauses(always, implicit, to) capture(ByRef) members({{%.*}} : !fir.llvm_ptr<!fir.ref<i32>>) -> !fir.ref<!fir.box<!fir.ptr<i32>>> {name = "test_ptr1"}
   !$omp target
     test_ptr1 = test_ptr1 + 1
   !$omp end target
@@ -46,7 +46,7 @@ program test_link
   !$omp end target
 
 
-  !CHECK-DAG: {{%.*}} = omp.map.info var_ptr({{%.*}} : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.box<!fir.ptr<i32>>) map_clauses(implicit, to) capture(ByRef) members({{%.*}} : !fir.llvm_ptr<!fir.ref<i32>>) -> !fir.ref<!fir.box<!fir.ptr<i32>>> {name = "test_ptr2"}
+  !CHECK-DAG: {{%.*}} = omp.map.info var_ptr({{%.*}} : !fir.ref<!fir.box<!fir.ptr<i32>>>, !fir.box<!fir.ptr<i32>>) map_clauses(always, implicit, to) capture(ByRef) members({{%.*}} : !fir.llvm_ptr<!fir.ref<i32>>) -> !fir.ref<!fir.box<!fir.ptr<i32>>> {name = "test_ptr2"}
   test_ptr2 => test_target
   !$omp target
     test_ptr2 = test_ptr2 + 1
diff --git a/flang/test/Lower/OpenMP/derived-type-allocatable-map.f90 b/flang/test/Lower/OpenMP/derived-type-allocatable-map.f90
index 47bcf2a7229ea5..e6ed245d6508e8 100644
--- a/flang/test/Lower/OpenMP/derived-type-allocatable-map.f90
+++ b/flang/test/Lower/OpenMP/derived-type-allocatable-map.f90
@@ -7,7 +7,7 @@
 !CHECK: %[[MEMBER_COORD:.*]] = fir.coordinate_of %[[DECLARE]]#0, %[[MEMBER_INDEX]] : (!fir.ref<!fir.type<[[ONE_LAYER_TY]]>>, index) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
 !CHECK: %[[MEMBER_BASE_ADDR:.*]] = fir.box_offset %[[MEMBER_COORD]] base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !CHECK: %[[MAP_MEMBER_BASE_ADDR:.*]] = omp.map.info var_ptr(%[[MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.array<?xi32>) var_ptr_ptr(%[[MEMBER_BASE_ADDR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {{.*}}
-!CHECK: %[[MAP_MEMBER_DESCRIPTOR:.*]] = omp.map.info var_ptr(%[[MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(to) capture(ByRef) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {{.*}}
+!CHECK: %[[MAP_MEMBER_DESCRIPTOR:.*]] = omp.map.info var_ptr(%[[MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(always, to) capture(ByRef) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {{.*}}
 !CHECK: %[[MAP_PARENT:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.type<[[ONE_LAYER_TY]]>>, !fir.type<[[ONE_LAYER_TY]]>) map_clauses(tofrom) capture(ByRef) members(%[[MAP_MEMBER_DESCRIPTOR]], %[[MAP_MEMBER_BASE_ADDR]] : [4], [4, 0] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) -> !fir.ref<!fir.type<[[ONE_LAYER_TY]]>> {{{.*}} partial_map = true}
 !CHECK:   omp.target map_entries(%[[MAP_PARENT]] -> %[[ARG0:.*]], %[[MAP_MEMBER_DESCRIPTOR]] -> %[[ARG1:.*]], %[[MAP_MEMBER_BASE_ADDR]] -> %[[ARG2:.*]] : !fir.ref<!fir.type<[[ONE_LAYER_TY]]>>, !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) {
 !CHECK:        %{{.*}}:2 = hlfir.declare %[[ARG0]] {{{.*}}} : (!fir.ref<!fir.type<[[ONE_LAYER_TY]]>>) -> (!fir.ref<!fir.type<[[ONE_LAYER_TY]]>>, !fir.ref<!fir.type<[[ONE_LAYER_TY]]>>)
@@ -38,14 +38,14 @@ subroutine dtype_alloca_map_op_block()
 !CHECK: %[[MEMBER_COORD:.*]] = fir.coordinate_of %[[LOAD_DTYPE]], %[[MEMBER_INDEX]] : (!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>, index) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
 !CHECK: %[[MEMBER_BASE_ADDR:.*]] = fir.box_offset %[[MEMBER_COORD]] base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !CHECK: %[[MAP_MEMBER_BASE_ADDR:.*]] = omp.map.info var_ptr(%[[MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.array<?xi32>) var_ptr_ptr(%[[MEMBER_BASE_ADDR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {{.*}}
-!CHECK: %[[MAP_MEMBER_DESC:.*]] = omp.map.info var_ptr(%[[MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(to) capture(ByRef) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {{.*}}
+!CHECK: %[[MAP_MEMBER_DESC:.*]] = omp.map.info var_ptr(%[[MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(always, to) capture(ByRef) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {{.*}}
 !CHECK: %[[LOAD_DTYPE:.*]] = fir.load %[[DECLARE]]#0 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>
 !CHECK: %[[MEMBER_COORD:.*]] = arith.constant 5 : index
 !CHECK: %[[REGULAR_MEMBER:.*]] = fir.coordinate_of %[[LOAD_DTYPE]], %[[MEMBER_COORD]] : (!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>, index) -> !fir.ref<i32>
 !CHECK: %[[MAP_REGULAR_MEMBER:.*]] = omp.map.info var_ptr(%[[REGULAR_MEMBER]] : !fir.ref<i32>, i32) map_clauses(tofrom) capture(ByRef) -> !fir.ref<i32> {{.*}}
 !CHECK: %[[DTYPE_BASE_ADDR:.*]] = fir.box_offset %[[DECLARE]]#1 base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>>>
 !CHECK: %[[MAP_DTYPE_BASE_ADDR:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>, !fir.type<[[REC_TY]]>) var_ptr_ptr(%[[DTYPE_BASE_ADDR]] : !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>>>) map_clauses(tofrom) capture(ByRef) -> !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>>> {{.*}}
-!CHECK: %[[MAP_DTYPE_DESC:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>, !fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>) map_clauses(to) capture(ByRef) members(%[[MAP_DTYPE_BASE_ADDR]], %[[MAP_MEMBER_DESC]], %[[MAP_MEMBER_BASE_ADDR]], %[[MAP_REGULAR_MEMBER]] : [0], [0, 4], [0, 4, 0], [0, 5] : !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>>>, !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>, !fir.ref<i32>) -> !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>> {{.*}}
+!CHECK: %[[MAP_DTYPE_DESC:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>, !fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>) map_clauses(always, to) capture(ByRef) members(%[[MAP_DTYPE_BASE_ADDR]], %[[MAP_MEMBER_DESC]], %[[MAP_MEMBER_BASE_ADDR]], %[[MAP_REGULAR_MEMBER]] : [0], [0, 4], [0, 4, 0], [0, 5] : !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>>>, !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>, !fir.ref<i32>) -> !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>> {{.*}}
 !CHECK: omp.target map_entries(%[[MAP_DTYPE_DESC]] -> %[[ARG0:.*]], %[[MAP_DTYPE_BASE_ADDR]] -> %[[ARG1:.*]], %[[MAP_MEMBER_DESC]] -> %[[ARG2:.*]], %[[MAP_MEMBER_BASE_ADDR]] -> %[[ARG3:.*]], %[[MAP_REGULAR_MEMBER]] -> %[[ARG4:.*]] : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>, !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>>>, !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>, !fir.ref<i32>) {
 !CHECK:  %{{.*}}:2 = hlfir.declare %[[ARG0]] {{{.*}}} : (!fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>) -> (!fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>, !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>>>>)
 subroutine alloca_dtype_op_block_add()
@@ -79,7 +79,7 @@ subroutine alloca_dtype_op_block_add()
 !CHECK: %[[NESTED_MEMBER_COORD:.*]] = fir.coordinate_of %[[NESTED_DTYPE_COORD]], %[[NESTED_MEMBER_INDEX]] : (!fir.ref<!fir.type<[[REC_TY2]]>>, index) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
 !CHECK: %[[NESTED_MEMBER_BASE_ADDR:.*]] = fir.box_offset %[[NESTED_MEMBER_COORD]] base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>
 !CHECK: %[[MAP_NESTED_MEMBER_BASE_ADDR:.*]] = omp.map.info var_ptr(%[[NESTED_MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.array<?xi32>) var_ptr_ptr(%[[NESTED_MEMBER_BASE_ADDR]] : !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>>) map_clauses(tofrom) capture(ByRef) bounds(%[[BOUNDS]]) -> !fir.llvm_ptr<!fir.ref<!fir.array<?xi32>>> {{.*}}
-!CHECK: %[[MAP_NESTED_MEMBER_COORD:.*]] = omp.map.info var_ptr(%[[NESTED_MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(to) capture(ByRef) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {{.*}}
+!CHECK: %[[MAP_NESTED_MEMBER_COORD:.*]] = omp.map.info var_ptr(%[[NESTED_MEMBER_COORD]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>, !fir.box<!fir.heap<!fir.array<?xi32>>>) map_clauses(always, to) capture(ByRef) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>> {{.*}}
 !CHECK: %[[LOAD:.*]] = fir.load %[[DECLARE]]#0 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>}>>>>
 !CHECK: %[[NESTED_DTYPE_INDEX:.*]] = arith.constant 6 : index
 !CHECK: %[[NESTED_DTYPE_COORD:.*]] = fir.coordinate_of %[[LOAD]], %[[NESTED_DTYPE_INDEX]] : (!fir.box<!fir.heap<!fir.type<[[REC_TY]]>}>>>, index) -> !fir.ref<!fir.type<[[REC_TY2]]>>
@@ -88,7 +88,7 @@ subroutine alloca_dtype_op_block_add()
 !CHECK: %[[MAP_REGULAR_NESTED_MEMBER:.*]] = omp.map.info var_ptr(%[[REGULAR_NESTED_MEMBER_COORD]] : !fir.ref<i32>, i32) map_clauses(tofrom) capture(ByRef) -> !fir.ref<i32> {{.*}}
 !CHECK: %[[DTYPE_BASE_ADDR:.*]] = fir.box_offset %[[DECLARE]]#1 base_addr : (!fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>}>>>>) -> !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>}>>>
 !CHECK: %[[MAP_DTYPE_BASE_ADDR:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>}>>>>, !fir.type<[[REC_TY]]>}>) var_ptr_ptr(%[[DTYPE_BASE_ADDR]] : !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>}>>>) map_clauses(tofrom) capture(ByRef) -> !fir.llvm_ptr<!fir.ref<!fir.type<[[REC_TY]]>}>>> {{.*}}
-!CHECK: %[[MAP_DTYPE:.*]] = omp.map.info var_ptr(%[[DECLARE]]#1 : !fir.ref<!fir.box<!fir.heap<!fir.type<[[REC_TY]]>}>>>>, !fir.box<!fir.heap<!f...
[truncated]

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Originally intended for this set of PRs to not be a PR stack, but the behavior is a little more interwoven than I'd anticipated and requires landing at the same time!

The PR stack comprises of:

  1. [Flang][OpenMP][MLIR] Initial declare target to for variables implementation
  2. [MLIR][OpenMP] Introduce overlapped record type map support #119588
  3. [Flang][OpenMP] Add global address space to globals for target device

Number 1) (this PR) should pass the CI, the rest will fail due to dependencies on each other.

@agozillon
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Small ping for some attention on this PR if at all possible please :-)

@agozillon
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Small ping for some attention on this PR if at all possible please! Would be greatly appreciated.

@agozillon agozillon force-pushed the users/agozillo/declare-target-to-2 branch from 173a950 to ed1fb2d Compare January 14, 2025 18:13
@agozillon agozillon force-pushed the users/agozillo/declare-target-to-3 branch from 47fd306 to 82f8795 Compare January 14, 2025 18:13
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Performed an update of PR 3 to address some reviewer nits, and then a rebase, the rebase has unfortunately brought in some code that will break the CI / patch series for the moment. However, I need to create a seperate PR to address it as it's a little unrelated to the changes in the PR stack. So once that lands everything will pass happily and hopefully be ready for submission after some reviews :-)

@agozillon
[Flang][OpenMP][MLIR] Initial declare target to for variables impleme…
39cc07b 
…ntation

While the infrastructure for declare target to/enter and link for variables exists in the MLIR dialect and at the Flang level, the current lowering from MLIR -> LLVM IR isn't in place, it's only in place for variables that have the link clause applied.

This PR aims to extend that lowering to an initial implementation that incorporates declare target to as well, which primarily requires changes in the OpenMPToLLVMIRTranslation phase. However, a minor addition to the OpenMP dialect was required to extend the declare target enumerator to include a default None field as well.

This also requires a minor change to the Flang lowering's MapInfoFinlization.cpp pass to alter the map type for descriptors to deal with cases where a variable is marked declare to.  Currently, when a descriptor variable is mapped declare target to the  descriptor component can become attatched, and cannot be updated, this results in issues when an unusual allocation range is specified (effectively an off-by X error). The current solution is to map the descriptor always, as we always require an up-to-date version of this data. However, this also requires an interlinked PR that adds a more intricate type of mapping of structures/record types that clang currently implements, to circumvent the overwriting of the pointer in the descriptor.

3/3 required PRs to enable declare target to mapping, this PR should pass all tests and provide an all green CI.

Co-authored-by: Raghu Maddhipatla [email protected]
@agozillon agozillon force-pushed the users/agozillo/declare-target-to-2 branch from ed1fb2d to 8676137 Compare January 16, 2025 01:19
@agozillon agozillon force-pushed the users/agozillo/declare-target-to-3 branch from 82f8795 to 39cc07b Compare January 16, 2025 01:20
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Small ping for a review on this if anyone has a little spare time, it would be greatly appreciated, thank you very much ahead of time :-)

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