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llvm-project/clang/test/OpenMP/target_exit_data_depend_codegen.cpp
Abhinav Gaba 1fbf33cd40
[OpenMP][Clang] Use ATTACH map-type for list-items with base-pointers. (#153683) 
This adds support for using `ATTACH` map-type for proper
pointer-attachment when mapping list-items that have base-pointers.

For example, for the following:

```c
  int *p;
  #pragma omp target enter data map(p[1:10])
```

The following maps are now emitted by clang:
```
  (A)
  &p[0], &p[1], 10 * sizeof(p[1]), TO | FROM
  &p, &p[1], sizeof(p), ATTACH
```

Previously, the two possible maps emitted by clang were:
```
  (B)
  &p[0], &p[1], 10 * sizeof(p[1]), TO | FROM

  (C)
  &p, &p[1], 10 * sizeof(p[1]), TO | FROM | PTR_AND_OBJ
````

(B) does not perform any pointer attachment, while (C) also maps the
pointer p, both of which are incorrect.

-----

With this change, we are using ATTACH-style maps, like `(A)`, for cases
where the expression has a base-pointer. For example:


```cpp
  int *p, **pp;
  S *ps, **pps;
  ... map(p[0])
  ... map(p[10:20])
  ... map(*p)
  ... map(([20])p)
  ... map(ps->a)
  ... map(pps->p->a)
  ... map(pp[0][0])
  ... map(*(pp + 10)[0])

```

#### Grouping of maps based on attach base-pointers
We also group mapping of clauses with the same base decl in the order of
the increasing complexity of their base-pointers, e.g. for something
like:
```
  S **spp;
  map(spp[0][0], spp[0][0].a), // attach-ptr: spp[0]
  map(spp[0]),                 // attach-ptr: spp
  map(spp),                    // attach-ptr: N/A
```

We first map `spp`, then `spp[0]` then `spp[0][0]` and `spp[0][0].a`.

This allows us to also group "struct" allocation based on their attach
pointers. This resolves the issues of us always mapping everything from
the beginning of the symbol `spp`. Each group is mapped independently,
and at the same level, like `spp[0][0]` and its member `spp[0][0].a`, we
still get map them together as part of the same contiguous struct
`spp[0][0]`. This resolves issue #141042.

#### use_device_ptr/addr fixes
The handling of `use_device_ptr/addr` was updated to use the attach-ptr
information, and works for many cases that were failing before. It has
to be done as part of this series because otherwise, the switch from
ptr_to_obj to attach-style mapping would have caused regressions in
existing use_device_ptr/addr tests.

#### Handling of attach-pointers that are members of implicitly mapped
structs:
* When a struct member-pointer, like `p` below, is a base-pointer in a
`map` clause on a target construct (like `map(p[0:1])`, and the base of
that struct is either the `this` pointer (implicitly or explicitly), or
a struct that is implicitly mapped on that construct, we add an implicit
`map(p)` so that we don't implicitly map the full struct.
 ```c
  struct S { int *p;
  void f1() {
    #pragma omp target map(p[0:1]) // Implicitly map this->p, to ensure
// that the implicit map of `this[:]` does
                                   // not map the full struct
       printf("%p %p\n", &p, p);
  }
 ```

#### Scope for improvement:
* We may be able to compute attach-ptr expr while collecting
component-lists in Sema.
* But we cache the computation results already, and `findAttachPtrExpr`
is fairly simple, and fast.
* There may be a better way to implement semantic expr comparison.

#### Needs future work:
* Attach-style maps not yet emitted for declare mappers.
* Mapping of class member references: We are still using PTR_AND_OBJ
maps for them. We will likely need to change that to handle
`ref_ptr/ref_ptee`, and `attach` map-type-modifier on them.
* Implicit capturing of "this" needs to map the full `this[0:1]` unless
there is an explicit map on one of the members, or a map with a member
as its base-pointer.
* Implicit map added for capturing a class member pointer needs to also
add a zero-length-array-section map.
* `use_device_addr` on array-sections-on-pointers need further
improvements (documented using FIXMEs)

#### Why a large PR
While it's unfortunate that this PR has gotten large and difficult to
review, the issue is that all the functional changes have to be made
together, to prevent regressions from partially implemented changes.

For example, the changes to capturing were previously done separately
(#145454), but they would still cause stability issues in absence of
full attach-mapping. And attach-mapping needs those changes to be able
to launch kernels.

We extracted the utilities and functions, like those for finding
attach-ptrs, or comparing exprs, out as a separate NFC PR that doesn't
call those functions, just adds them (#155625). Maybe the change that
adds a new error message for use_device_addr on array-sections with
non-var base-pointers could have been extracted out too (but that would
have had to be a follow-up change in that case, and we would get
comp-fails with this PR when the erroneous case was not
caught/diagnosed).

---------

Co-authored-by: Alex Duran <alejandro.duran@intel.com>
2025-12-15 16:40:31 -08:00

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// RUN: %clang_cc1 -verify -Wno-vla -fopenmp -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple powerpc64le-unknown-unknown -emit-llvm %s -o - | FileCheck %s --check-prefix CK1 --check-prefix CK1-64
// RUN: %clang_cc1 -fopenmp -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -std=c++11 -triple powerpc64le-unknown-unknown -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple powerpc64le-unknown-unknown -std=c++11 -include-pch %t -verify -Wno-vla %s -emit-llvm -o - | FileCheck %s --check-prefix CK1 --check-prefix CK1-64
// RUN: %clang_cc1 -verify -Wno-vla -fopenmp -fopenmp-targets=i386-pc-linux-gnu -x c++ -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck %s --check-prefix CK1 --check-prefix CK1-32
// RUN: %clang_cc1 -fopenmp -fopenmp-targets=i386-pc-linux-gnu -x c++ -std=c++11 -triple i386-unknown-unknown -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp -fopenmp-targets=i386-pc-linux-gnu -x c++ -triple i386-unknown-unknown -std=c++11 -include-pch %t -verify -Wno-vla %s -emit-llvm -o - | FileCheck %s --check-prefix CK1 --check-prefix CK1-32
// RUN: %clang_cc1 -verify -Wno-vla -fopenmp-simd -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple powerpc64le-unknown-unknown -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// RUN: %clang_cc1 -fopenmp-simd -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -std=c++11 -triple powerpc64le-unknown-unknown -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp-simd -fopenmp-targets=powerpc64le-ibm-linux-gnu -x c++ -triple powerpc64le-unknown-unknown -std=c++11 -include-pch %t -verify -Wno-vla %s -emit-llvm -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// RUN: %clang_cc1 -verify -Wno-vla -fopenmp-simd -fopenmp-targets=i386-pc-linux-gnu -x c++ -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// RUN: %clang_cc1 -fopenmp-simd -fopenmp-targets=i386-pc-linux-gnu -x c++ -std=c++11 -triple i386-unknown-unknown -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp-simd -fopenmp-targets=i386-pc-linux-gnu -x c++ -triple i386-unknown-unknown -std=c++11 -include-pch %t -verify -Wno-vla %s -emit-llvm -o - | FileCheck --check-prefix SIMD-ONLY0 %s
// SIMD-ONLY0-NOT: {{__kmpc|__tgt}}
// expected-no-diagnostics
// CK1: [[ST:%.+]] = type { i32, ptr }
// CK1: %struct.kmp_depend_info = type { i[[sz:64|32]],
// CK1-SAME: i[[sz]], i8 }
#ifndef HEADER
#define HEADER
template <typename T>
struct ST {
T a;
double *b;
};
ST<int> gb;
double gc[100];
// CK1: [[SIZE00:@.+]] = {{.+}}constant [1 x i64] [i64 800]
// CK1: [[MTYPE00:@.+]] = {{.+}}constant [1 x i64] [i64 2]
// CK1: [[SIZE02:@.+]] = {{.+}}constant [1 x i64] [i64 4]
// CK1: [[MTYPE02:@.+]] = {{.+}}constant [1 x i64] [i64 8]
// CK1: [[MTYPE03:@.+]] = {{.+}}constant [1 x i64] [i64 2]
// CK1: [[SIZE04:@.+]] = {{.+}}constant [1 x i64] [i64 24]
// CK1: [[MTYPE04:@.+]] = {{.+}}constant [1 x i64] [i64 2]
// CK1-LABEL: _Z3fooi
void foo(int arg) {
int la;
float lb[arg];
// CK1: alloca [1 x %struct.kmp_depend_info],
// CK1: alloca [3 x %struct.kmp_depend_info],
// CK1: alloca [4 x %struct.kmp_depend_info],
// CK1: alloca [5 x %struct.kmp_depend_info],
// Region 00
// CK1: [[BP0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[BP:%.+]], i32 0, i32 0
// CK1: store ptr @gc, ptr [[BP0]],
// CK1: [[P0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[P:%.+]], i32 0, i32 0
// CK1: store ptr @gc, ptr [[P0]],
// CK1: [[GEPBP0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[BP]], i32 0, i32 0
// CK1: [[GEPP0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[P]], i32 0, i32 0
// CK1: [[CAP_DEVICE:%.+]] = getelementptr inbounds nuw %struct.anon, ptr [[CAPTURES:%.+]], i32 0, i32 0
// CK1: [[DEVICE:%.+]] = load i32, ptr %{{.+}}
// CK1: store i32 [[DEVICE]], ptr [[CAP_DEVICE]],
// CK1: [[DEV1:%.+]] = load i32, ptr %{{.+}}
// CK1: [[DEV2:%.+]] = sext i32 [[DEV1]] to i64
// CK1: [[RES:%.+]] = call ptr @__kmpc_omp_target_task_alloc(ptr {{.+}}, i32 {{.+}}, i32 1, i[[sz]] {{64|36}}, i[[sz]] 4, ptr [[TASK_ENTRY0:@.+]], i64 [[DEV2]])
// CK1: [[TASK_T:%.+]] = getelementptr inbounds nuw %struct.kmp_task_t_with_privates, ptr [[RES]], i32 0, i32 0
// CK1: [[SHAREDS:%.+]] = getelementptr inbounds nuw %struct.kmp_task_t, ptr [[TASK_T]], i32 0, i32 0
// CK1: [[SHAREDS_REF:%.+]] = load ptr, ptr [[SHAREDS]],
// CK1: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align 4 [[SHAREDS_REF]], ptr align 4 [[CAPTURES]], i[[sz]] 4, i1 false)
// CK1: [[PRIVS:%.+]] = getelementptr inbounds nuw %struct.kmp_task_t_with_privates, ptr [[RES]], i32 0, i32 1
// CK1-64: [[PRIVS_BASEPTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t, ptr [[PRIVS]], i32 0, i32 0
// CK1-64: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_BASEPTRS]], ptr align {{8|4}} [[GEPBP0]], i[[sz]] {{8|4}}, i1 false)
// CK1-64: [[PRIVS_PTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t, ptr [[PRIVS]], i32 0, i32 1
// CK1-64: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_PTRS]], ptr align {{8|4}} [[GEPP0]], i[[sz]] {{8|4}}, i1 false)
// CK1-64: [[PRIVS_SIZES:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t, ptr [[PRIVS]], i32 0, i32 2
// CK1-64: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_SIZES]], ptr align {{8|4}} [[SIZE00]], i[[sz]] {{8|4}}, i1 false)
// CK1-32: [[PRIVS_SIZES:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t, ptr [[PRIVS]], i32 0, i32 0
// CK1-32: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_SIZES]], ptr align {{8|4}} [[SIZE00]], i[[sz]] {{8|4}}, i1 false)
// CK1-32: [[PRIVS_BASEPTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t, ptr [[PRIVS]], i32 0, i32 1
// CK1-32: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_BASEPTRS]], ptr align {{8|4}} [[GEPBP0]], i[[sz]] {{8|4}}, i1 false)
// CK1-32: [[PRIVS_PTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t, ptr [[PRIVS]], i32 0, i32 2
// CK1-32: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_PTRS]], ptr align {{8|4}} [[GEPP0]], i[[sz]] {{8|4}}, i1 false)
// CK1: [[BC_ADR:%.+]] = ptrtoint ptr %{{.+}} to i[[sz]]
// CK1: [[DEP:%.+]] = getelementptr %struct.kmp_depend_info, ptr [[MAIN_DEP:%.+]], i[[sz]] 0
// CK1: [[DEP_ADR:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 0
// CK1: store i[[sz]] [[BC_ADR]], ptr [[DEP_ADR]],
// CK1: [[DEP_SIZE:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 1
// CK1: store i[[sz]] 4, ptr [[DEP_SIZE]],
// CK1: [[DEP_ATTRS:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 2
// CK1: store i8 1, ptr [[DEP_ATTRS]]
// CK1: = call i32 @__kmpc_omp_task_with_deps(ptr @{{.+}}, i32 %{{.+}}, ptr [[RES]], i32 1, ptr [[MAIN_DEP]], i32 0, ptr null)
// CK1: %{{.+}} = add nsw i32 %{{[^,]+}}, 1
#pragma omp target exit data if(1+3-5) device(arg) map(from:gc) nowait depend(in: arg)
{++arg;}
// Region 01
// CK1: %{{.+}} = add nsw i32 %{{[^,]+}}, 1
#pragma omp target exit data map(release: la) if(1+3-4) depend(in: la) depend(out: arg)
{++arg;}
// Region 02
// CK1: br i1 %{{[^,]+}}, label %[[IFTHEN:[^,]+]], label %[[IFELSE:[^,]+]]
// CK1: [[IFTHEN]]
// CK1: [[BP0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[BP:%.+]], i32 0, i32 0
// CK1: store ptr [[ARG:%.+]], ptr [[BP0]],
// CK1: [[P0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[P:%.+]], i32 0, i32 0
// CK1: store ptr [[ARG]], ptr [[P0]],
// CK1: [[GEPBP0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[BP]], i32 0, i32 0
// CK1: [[GEPP0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[P]], i32 0, i32 0
// CK1: [[IF_DEVICE:%.+]] = getelementptr inbounds nuw %struct.anon{{.+}}, ptr [[CAPTURES:%.+]], i32 0, i32 0
// CK1: [[IF:%.+]] = load i8, ptr %{{.+}}
// CK1: [[IF_BOOL:%.+]] = trunc i8 [[IF]] to i1
// CK1: [[IF:%.+]] = zext i1 [[IF_BOOL]] to i8
// CK1: store i8 [[IF]], ptr [[IF_DEVICE]],
// CK1: [[RES:%.+]] = call ptr @__kmpc_omp_task_alloc(ptr {{.+}}, i32 {{.+}}, i32 1, i[[sz]] {{64|36}}, i[[sz]] 1, ptr [[TASK_ENTRY2:@.+]])
// CK1: [[TASK_T:%.+]] = getelementptr inbounds nuw %struct.kmp_task_t_with_privates{{.+}}, ptr [[RES]], i32 0, i32 0
// CK1: [[SHAREDS:%.+]] = getelementptr inbounds nuw %struct.kmp_task_t, ptr [[TASK_T]], i32 0, i32 0
// CK1: [[SHAREDS_REF:%.+]] = load ptr, ptr [[SHAREDS]],
// CK1: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align 1 [[SHAREDS_REF]], ptr align 1 [[CAPTURES]], i[[sz]] 1, i1 false)
// CK1: [[PRIVS:%.+]] = getelementptr inbounds nuw %struct.kmp_task_t_with_privates{{.+}}, ptr [[RES]], i32 0, i32 1
// CK1-64: [[PRIVS_BASEPTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 0
// CK1-64: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_BASEPTRS]], ptr align {{8|4}} [[GEPBP0]], i[[sz]] {{8|4}}, i1 false)
// CK1-64: [[PRIVS_PTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 1
// CK1-64: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_PTRS]], ptr align {{8|4}} [[GEPP0]], i[[sz]] {{8|4}}, i1 false)
// CK1-64: [[PRIVS_SIZES:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 2
// CK1-64: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_SIZES]], ptr align {{8|4}} [[SIZE02]], i[[sz]] {{8|4}}, i1 false)
// CK1-32: [[PRIVS_SIZES:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 0
// CK1-32: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_SIZES]], ptr align {{8|4}} [[SIZE02]], i[[sz]] {{8|4}}, i1 false)
// CK1-32: [[PRIVS_BASEPTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 1
// CK1-32: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_BASEPTRS]], ptr align {{8|4}} [[GEPBP0]], i[[sz]] {{8|4}}, i1 false)
// CK1-32: [[PRIVS_PTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 2
// CK1-32: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_PTRS]], ptr align {{8|4}} [[GEPP0]], i[[sz]] {{8|4}}, i1 false)
// CK1: [[BC_ADR:%.+]] = ptrtoint ptr %{{.+}} to i[[sz]]
// CK1: [[DEP:%.+]] = getelementptr %struct.kmp_depend_info, ptr [[MAIN_DEP:%.+]], i[[sz]] 0
// CK1: [[DEP_ADR:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 0
// CK1: store i[[sz]] [[BC_ADR]], ptr [[DEP_ADR]],
// CK1: [[DEP_SIZE:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 1
// CK1: store i[[sz]] 4, ptr [[DEP_SIZE]],
// CK1: [[DEP_ATTRS:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 2
// CK1: store i8 3, ptr [[DEP_ATTRS]]
// CK1: [[BC_ADR:%.+]] = ptrtoint ptr %{{.+}} to i[[sz]]
// CK1: [[DEP:%.+]] = getelementptr %struct.kmp_depend_info, ptr [[MAIN_DEP]], i[[sz]] 1
// CK1: [[DEP_ADR:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 0
// CK1: store i[[sz]] [[BC_ADR]], ptr [[DEP_ADR]],
// CK1: [[DEP_SIZE:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 1
// CK1: store i[[sz]] 4, ptr [[DEP_SIZE]],
// CK1: [[DEP_ATTRS:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 2
// CK1: store i8 3, ptr [[DEP_ATTRS]]
// CK1: [[DEP:%.+]] = getelementptr %struct.kmp_depend_info, ptr [[MAIN_DEP]], i[[sz]] 2
// CK1: [[DEP_ADR:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 0
// CK1: store i[[sz]] ptrtoint (ptr @gc to i[[sz]]), ptr [[DEP_ADR]],
// CK1: [[DEP_SIZE:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 1
// CK1: store i[[sz]] 800, ptr [[DEP_SIZE]],
// CK1: [[DEP_ATTRS:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 2
// CK1: store i8 3, ptr [[DEP_ATTRS]]
// CK1: call void @__kmpc_omp_taskwait_deps_51(ptr @{{.+}}, i32 %{{.+}}, i32 3, ptr [[MAIN_DEP]], i32 0, ptr null, i32 0)
// CK1: call void @__kmpc_omp_task_begin_if0(ptr @{{.+}}, i32 %{{.+}}, ptr [[RES]])
// CK1: = call i32 [[TASK_ENTRY2]](i32 %{{.+}}, ptr [[RES]])
// CK1: call void @__kmpc_omp_task_complete_if0(ptr @{{.+}}, i32 %{{.+}}, ptr [[RES]])
// CK1: br label %[[IFEND:[^,]+]]
// CK1: [[IFELSE]]
// CK1: br label %[[IFEND]]
// CK1: [[IFEND]]
// CK1: %{{.+}} = add nsw i32 %{{[^,]+}}, 1
#pragma omp target exit data map(delete: arg) if(arg) device(4) depend(inout: arg, la, gc)
{++arg;}
// CK1: %{{.+}} = add nsw i32 %{{[^,]+}}, 1
{++arg;}
// Region 03
// CK1: [[BP0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[BP:%.+]], i32 0, i32 0
// CK1: store ptr [[VLA:%.+]], ptr [[BP0]],
// CK1: [[P0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[P:%.+]], i32 0, i32 0
// CK1: store ptr [[VLA]], ptr [[P0]],
// CK1: [[S0:%.+]] = getelementptr inbounds [1 x i64], ptr [[S:%.+]], i32 0, i32 0
// CK1: store i64 {{.+}}, ptr [[S0]],
// CK1: [[GEPBP0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[BP]], i32 0, i32 0
// CK1: [[GEPP0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[P]], i32 0, i32 0
// CK1: [[GEPS0:%.+]] = getelementptr inbounds [1 x i64], ptr [[S]], i32 0, i32 0
// CK1: [[RES:%.+]] = call ptr @__kmpc_omp_task_alloc(ptr {{.+}}, i32 {{.+}}, i32 1, i[[sz]] {{64|36}}, i[[sz]] 1, ptr [[TASK_ENTRY3:@.+]])
// CK1: [[TASK_T:%.+]] = getelementptr inbounds nuw %struct.kmp_task_t_with_privates{{.+}}, ptr [[RES]], i32 0, i32 0
// CK1: [[PRIVS:%.+]] = getelementptr inbounds nuw %struct.kmp_task_t_with_privates{{.+}}, ptr [[RES]], i32 0, i32 1
// CK1-64: [[PRIVS_BASEPTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 0
// CK1-64: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_BASEPTRS]], ptr align {{8|4}} [[GEPBP0]], i[[sz]] {{8|4}}, i1 false)
// CK1-64: [[PRIVS_PTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 1
// CK1-64: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_PTRS]], ptr align {{8|4}} [[GEPP0]], i[[sz]] {{8|4}}, i1 false)
// CK1-64: [[PRIVS_SIZES:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 2
// CK1-64: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_SIZES]], ptr align {{8|4}} [[GEPS0]], i[[sz]] {{8|4}}, i1 false)
// CK1-32: [[PRIVS_SIZES:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 0
// CK1-32: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_SIZES]], ptr align {{8|4}} [[GEPS0]], i[[sz]] {{8|4}}, i1 false)
// CK1-32: [[PRIVS_BASEPTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 1
// CK1-32: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_BASEPTRS]], ptr align {{8|4}} [[GEPBP0]], i[[sz]] {{8|4}}, i1 false)
// CK1-32: [[PRIVS_PTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 2
// CK1-32: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_PTRS]], ptr align {{8|4}} [[GEPP0]], i[[sz]] {{8|4}}, i1 false)
// CK1: [[BC_ADR:%.+]] = ptrtoint ptr %{{.+}} to i[[sz]]
// CK1: [[DEP:%.+]] = getelementptr %struct.kmp_depend_info, ptr [[MAIN_DEP:%.+]], i[[sz]] 0
// CK1: [[DEP_ADR:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 0
// CK1: store i[[sz]] [[BC_ADR]], ptr [[DEP_ADR]],
// CK1: [[DEP_SIZE:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 1
// CK1: store i[[sz]] %{{.+}}, ptr [[DEP_SIZE]],
// CK1: [[DEP_ATTRS:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 2
// CK1: store i8 3, ptr [[DEP_ATTRS]]
// CK1: [[BC_ADR:%.+]] = ptrtoint ptr %{{.+}} to i[[sz]]
// CK1: [[DEP:%.+]] = getelementptr %struct.kmp_depend_info, ptr [[MAIN_DEP]], i[[sz]] 1
// CK1: [[DEP_ADR:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 0
// CK1: store i[[sz]] [[BC_ADR]], ptr [[DEP_ADR]],
// CK1: [[DEP_SIZE:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 1
// CK1: store i[[sz]] 4, ptr [[DEP_SIZE]],
// CK1: [[DEP_ATTRS:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 2
// CK1: store i8 3, ptr [[DEP_ATTRS]]
// CK1: [[BC_ADR:%.+]] = ptrtoint ptr %{{.+}} to i[[sz]]
// CK1: [[DEP:%.+]] = getelementptr %struct.kmp_depend_info, ptr [[MAIN_DEP]], i[[sz]] 2
// CK1: [[DEP_ADR:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 0
// CK1: store i[[sz]] [[BC_ADR]], ptr [[DEP_ADR]],
// CK1: [[DEP_SIZE:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 1
// CK1: store i[[sz]] 4, ptr [[DEP_SIZE]],
// CK1: [[DEP_ATTRS:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 2
// CK1: store i8 3, ptr [[DEP_ATTRS]]
// CK1: [[DEP:%.+]] = getelementptr %struct.kmp_depend_info, ptr [[MAIN_DEP]], i[[sz]] 3
// CK1: [[DEP_ADR:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 0
// CK1: store i[[sz]] ptrtoint (ptr @gc to i[[sz]]), ptr [[DEP_ADR]],
// CK1: [[DEP_SIZE:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 1
// CK1: store i[[sz]] 800, ptr [[DEP_SIZE]],
// CK1: [[DEP_ATTRS:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 2
// CK1: store i8 3, ptr [[DEP_ATTRS]]
// CK1: call void @__kmpc_omp_taskwait_deps_51(ptr @{{.+}}, i32 %{{.+}}, i32 4, ptr [[MAIN_DEP]], i32 0, ptr null, i32 0)
// CK1: call void @__kmpc_omp_task_begin_if0(ptr @{{.+}}, i32 %{{.+}}, ptr [[RES]])
// CK1: = call i32 [[TASK_ENTRY3]](i32 %{{.+}}, ptr [[RES]])
// CK1: call void @__kmpc_omp_task_complete_if0(ptr @{{.+}}, i32 %{{.+}}, ptr [[RES]])
#pragma omp target exit data map(from:lb) depend(out: lb, arg, la, gc)
{++arg;}
// CK1: %{{.+}} = add nsw i32 %{{[^,]+}}, 1
{++arg;}
// Region 04
// &gb.b[0], &gb.b[0], 3 * sizeof(gb.b[0]), FROM
// CK1: [[B:%.+]] = load ptr, ptr getelementptr inbounds nuw (%struct.ST, ptr @gb, i32 0, i32 1)
// CK1: [[B1:%.+]] = load ptr, ptr getelementptr inbounds nuw (%struct.ST, ptr @gb, i32 0, i32 1)
// CK1: [[BGEP0:%.+]] = getelementptr inbounds nuw double, ptr [[B1]], i[[sz]] 0
// CK1: [[BP0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[BP:%.+]], i32 0, i32 0
// CK1: store ptr [[B]], ptr [[BP0]],
// CK1: [[P0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[P:%.+]], i32 0, i32 0
// CK1: store ptr [[BGEP0]], ptr [[P0]],
// CK1: [[GEPBP0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[BP]], i32 0, i32 0
// CK1: [[GEPP0:%.+]] = getelementptr inbounds [1 x ptr], ptr [[P]], i32 0, i32 0
// CK1: [[RES:%.+]] = call ptr @__kmpc_omp_task_alloc(ptr {{.+}}, i32 {{.+}}, i32 1, i[[sz]] {{64|36}}, i[[sz]] 1, ptr [[TASK_ENTRY4:@.+]])
// CK1: [[TASK_T:%.+]] = getelementptr inbounds nuw %struct.kmp_task_t_with_privates{{.+}}, ptr [[RES]], i32 0, i32 0
// CK1: [[PRIVS:%.+]] = getelementptr inbounds nuw %struct.kmp_task_t_with_privates{{.+}}, ptr [[RES]], i32 0, i32 1
// CK1-64: [[PRIVS_BASEPTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 0
// CK1-64: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_BASEPTRS]], ptr align {{8|4}} [[GEPBP0]], i[[sz]] {{16|8}}, i1 false)
// CK1-64: [[PRIVS_PTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 1
// CK1-64: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_PTRS]], ptr align {{8|4}} [[GEPP0]], i[[sz]] {{16|8}}, i1 false)
// CK1-64: [[PRIVS_SIZES:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 2
// CK1-64: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_SIZES]], ptr align {{8|4}} [[SIZE04]], i[[sz]] {{16|8}}, i1 false)
// CK1-32: [[PRIVS_SIZES:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 0
// CK1-32: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_SIZES]], ptr align {{8|4}} [[SIZE04]], i[[sz]] {{16|8}}, i1 false)
// CK1-32: [[PRIVS_BASEPTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 1
// CK1-32: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_BASEPTRS]], ptr align {{8|4}} [[GEPBP0]], i[[sz]] {{8|4}}, i1 false)
// CK1-32: [[PRIVS_PTRS:%.+]] = getelementptr inbounds nuw %struct..kmp_privates.t{{.+}}, ptr [[PRIVS]], i32 0, i32 2
// CK1-32: call void @llvm.memcpy.p0.p0.i[[sz]](ptr align {{8|4}} [[PRIVS_PTRS]], ptr align {{8|4}} [[GEPP0]], i[[sz]] {{8|4}}, i1 false)
// CK1: %{{.+}} = sub nuw
// CK1: [[BC_ADR:%.+]] = ptrtoint ptr %{{.+}} to i[[sz]]
// CK1: [[DEP:%.+]] = getelementptr %struct.kmp_depend_info, ptr [[MAIN_DEP:%.+]], i[[sz]] 0
// CK1: [[DEP_ADR:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 0
// CK1: store i[[sz]] [[BC_ADR]], ptr [[DEP_ADR]],
// CK1: [[DEP_SIZE:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 1
// CK1: store i[[sz]] %{{.+}}, ptr [[DEP_SIZE]],
// CK1: [[DEP_ATTRS:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 2
// CK1: store i8 1, ptr [[DEP_ATTRS]]
// CK1: [[BC_ADR:%.+]] = ptrtoint ptr %{{.+}} to i[[sz]]
// CK1: [[DEP:%.+]] = getelementptr %struct.kmp_depend_info, ptr [[MAIN_DEP]], i[[sz]] 1
// CK1: [[DEP_ADR:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 0
// CK1: store i[[sz]] [[BC_ADR]], ptr [[DEP_ADR]],
// CK1: [[DEP_SIZE:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 1
// CK1: store i[[sz]] 4, ptr [[DEP_SIZE]],
// CK1: [[DEP_ATTRS:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 2
// CK1: store i8 1, ptr [[DEP_ATTRS]]
// CK1: [[BC_ADR:%.+]] = ptrtoint ptr %{{.+}} to i[[sz]]
// CK1: [[DEP:%.+]] = getelementptr %struct.kmp_depend_info, ptr [[MAIN_DEP]], i[[sz]] 2
// CK1: [[DEP_ADR:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 0
// CK1: store i[[sz]] [[BC_ADR]], ptr [[DEP_ADR]],
// CK1: [[DEP_SIZE:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 1
// CK1: store i[[sz]] %{{.+}}, ptr [[DEP_SIZE]],
// CK1: [[DEP_ATTRS:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 2
// CK1: store i8 1, ptr [[DEP_ATTRS]]
// CK1: [[DEP:%.+]] = getelementptr %struct.kmp_depend_info, ptr [[MAIN_DEP]], i[[sz]] 3
// CK1: [[DEP_ADR:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 0
// CK1: store i[[sz]] ptrtoint (ptr @gc to i[[sz]]), ptr [[DEP_ADR]],
// CK1: [[DEP_SIZE:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 1
// CK1: store i[[sz]] 800, ptr [[DEP_SIZE]],
// CK1: [[DEP_ATTRS:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 2
// CK1: store i8 1, ptr [[DEP_ATTRS]]
// CK1: [[BC_ADR:%.+]] = ptrtoint ptr %{{.+}} to i[[sz]]
// CK1: [[DEP:%.+]] = getelementptr %struct.kmp_depend_info, ptr [[MAIN_DEP]], i[[sz]] 4
// CK1: [[DEP_ADR:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 0
// CK1: store i[[sz]] [[BC_ADR]], ptr [[DEP_ADR]],
// CK1: [[DEP_SIZE:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 1
// CK1: store i[[sz]] 4, ptr [[DEP_SIZE]],
// CK1: [[DEP_ATTRS:%.+]] = getelementptr inbounds nuw %struct.kmp_depend_info, ptr [[DEP]], i32 0, i32 2
// CK1: store i8 1, ptr [[DEP_ATTRS]]
// CK1: call void @__kmpc_omp_taskwait_deps_51(ptr @{{.+}}, i32 %{{.+}}, i32 5, ptr [[MAIN_DEP]], i32 0, ptr null, i32 0)
// CK1: call void @__kmpc_omp_task_begin_if0(ptr @{{.+}}, i32 %{{.+}}, ptr [[RES]])
// CK1: = call i32 [[TASK_ENTRY4]](i32 %{{.+}}, ptr [[RES]])
// CK1: call void @__kmpc_omp_task_complete_if0(ptr @{{.+}}, i32 %{{.+}}, ptr [[RES]])
#pragma omp target exit data map(from:gb.b[:3]) depend(in: gb.b[:3], la, lb, gc, arg)
{++arg;}
}
// CK1: define internal{{.*}} i32 [[TASK_ENTRY0]](i32{{.*}}, ptr noalias noundef %1)
// CK1-DAG: call void @__tgt_target_data_end_nowait_mapper(ptr @{{.+}}, i64 [[DEV:%[^,]+]], i32 1, ptr [[BP:%.+]], ptr [[P:%.+]], ptr [[S:%.+]], ptr [[MTYPE00]]{{.+}}, ptr null)
// CK1-DAG: [[DEV]] = sext i32 [[DEVi32:%[^,]+]] to i64
// CK1-DAG: [[DEVi32]] = load i32, ptr %{{[^,]+}},
// CK1-DAG: [[BP]] = load ptr, ptr [[BP_PRIV:%[^,]+]],
// CK1-DAG: [[P]] = load ptr, ptr [[P_PRIV:%[^,]+]],
// CK1-DAG: [[S]] = load ptr, ptr [[S_PRIV:%[^,]+]],
// CK1-DAG: call void {{%.*}}(ptr %{{[^,]+}}, ptr [[BP_PRIV]], ptr [[P_PRIV]], ptr [[S_PRIV]])
// CK1: ret i32 0
// CK1: }
// CK1: define internal{{.*}} i32 [[TASK_ENTRY2]](i32{{.*}}, ptr noalias noundef %1)
// CK1-DAG: call void @__tgt_target_data_end_mapper(ptr @{{.+}}, i64 4, i32 1, ptr [[BP:%.+]], ptr [[P:%.+]], ptr [[S:%.+]], ptr [[MTYPE02]]{{.+}}, ptr null)
// CK1-DAG: [[BP]] = load ptr, ptr [[BP_PRIV:%[^,]+]],
// CK1-DAG: [[P]] = load ptr, ptr [[P_PRIV:%[^,]+]],
// CK1-DAG: [[S]] = load ptr, ptr [[S_PRIV:%[^,]+]],
// CK1-DAG: call void {{%.*}}(ptr %{{[^,]+}}, ptr [[BP_PRIV]], ptr [[P_PRIV]], ptr [[S_PRIV]])
// CK1: ret i32 0
// CK1: }
// CK1: define internal{{.*}} i32 [[TASK_ENTRY3]](i32{{.*}}, ptr noalias noundef %1)
// CK1-DAG: call void @__tgt_target_data_end_mapper(ptr @{{.+}}, i64 -1, i32 1, ptr [[BP:%.+]], ptr [[P:%.+]], ptr [[S:%.+]], ptr [[MTYPE03]]{{.+}}, ptr null)
// CK1-DAG: [[BP]] = load ptr, ptr [[BP_PRIV:%[^,]+]],
// CK1-DAG: [[P]] = load ptr, ptr [[P_PRIV:%[^,]+]],
// CK1-DAG: [[S]] = load ptr, ptr [[S_PRIV:%[^,]+]],
// CK1-DAG: call void {{%.*}}(ptr %{{[^,]+}}, ptr [[BP_PRIV]], ptr [[P_PRIV]], ptr [[S_PRIV]])
// CK1-NOT: __tgt_target_data_end_mapper
// CK1: ret i32 0
// CK1: }
// CK1: define internal{{.*}} i32 [[TASK_ENTRY4]](i32{{.*}}, ptr noalias noundef %1)
// CK1-DAG: call void @__tgt_target_data_end_mapper(ptr @{{.+}}, i64 -1, i32 1, ptr [[BP:%.+]], ptr [[P:%.+]], ptr [[S:%.+]], ptr [[MTYPE04]]{{.+}}, ptr null)
// CK1-DAG: [[BP]] = load ptr, ptr [[BP_PRIV:%[^,]+]],
// CK1-DAG: [[P]] = load ptr, ptr [[P_PRIV:%[^,]+]],
// CK1-DAG: [[S]] = load ptr, ptr [[S_PRIV:%[^,]+]],
// CK1-DAG: call void {{%.*}}(ptr %{{[^,]+}}, ptr [[BP_PRIV]], ptr [[P_PRIV]], ptr [[S_PRIV]])
// CK1-NOT: __tgt_target_data_end_mapper
// CK1: ret i32 0
// CK1: }
#endif
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