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llvm-project/clang/test/OpenMP/taskloop_codegen.cpp
Alexey Bataev ad537bb8a0 [OPENMP 4.5] Fixed codegen for 'priority' and destructors in task-based 
directives.

'kmp_task_t' record type added a new field for 'priority' clause and
changed the representation of pointer to destructors for privates used
within loop-based directives.
Old representation:

typedef struct kmp_task {                   /* GEH: Shouldn't this be
aligned somehow? */
  void *shareds;                            /**< pointer to block of
    pointers to shared vars   */
  kmp_routine_entry_t routine;              /**< pointer to routine
    to call for executing task */
  kmp_int32 part_id;                        /**< part id for the
    task                          */
  kmp_routine_entry_t destructors;        /* pointer to function to
  invoke deconstructors of firstprivate C++ objects */
  /*  private vars  */
} kmp_task_t;

New representation:

typedef struct kmp_task {                   /* GEH: Shouldn't this be
aligned somehow? */
  void *shareds;                            /**< pointer to block of
    pointers to shared vars   */
  kmp_routine_entry_t routine;              /**< pointer to routine
    to call for executing task */
  kmp_int32 part_id;                        /**< part id for the
    task                          */
  kmp_cmplrdata_t data1; /* Two known
optional additions: destructors and priority */
  kmp_cmplrdata_t data2; /* Process
destructors first, priority second */
/* future data */
  /*  private vars  */
} kmp_task_t;

Also excessive initialization of 'destructors' fields to 'null' was
removed from codegen if it is known that no destructors shal be used.
Currently a special bit is used in 'kmp_tasking_flags_t' bitfields
('destructors_thunk' bitfield).

llvm-svn: 271201
2016-05-30 09:06:50 +00:00

193 lines
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// RUN: %clang_cc1 -verify -triple x86_64-apple-darwin10 -fopenmp -x c++ -emit-llvm %s -o - -femit-all-decls | FileCheck %s
// RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-apple-darwin10 -emit-pch -o %t %s
// RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-apple-darwin10 -include-pch %t -verify %s -emit-llvm -o - -femit-all-decls | FileCheck %s
// expected-no-diagnostics
// REQUIRES: x86-registered-target
#ifndef HEADER
#define HEADER
// CHECK-LABEL: @main
int main(int argc, char **argv) {
// CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num(%ident_t* [[DEFLOC:@.+]])
// CHECK: [[TASKV:%.+]] = call i8* @__kmpc_omp_task_alloc(%ident_t* [[DEFLOC]], i32 [[GTID]], i32 33, i64 72, i64 1, i32 (i32, i8*)* bitcast (i32 (i32, [[TDP_TY:%.+]]*)* [[TASK1:@.+]] to i32 (i32, i8*)*))
// CHECK: [[TASK:%.+]] = bitcast i8* [[TASKV]] to [[TDP_TY]]*
// CHECK: [[TASK_DATA:%.+]] = getelementptr inbounds [[TDP_TY]], [[TDP_TY]]* [[TASK]], i32 0, i32 0
// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 5
// CHECK: store i64 0, i64* [[DOWN]],
// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 6
// CHECK: store i64 9, i64* [[UP]],
// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 7
// CHECK: store i64 1, i64* [[ST]],
// CHECK: [[ST_VAL:%.+]] = load i64, i64* [[ST]],
// CHECK: call void @__kmpc_taskloop(%ident_t* [[DEFLOC]], i32 [[GTID]], i8* [[TASKV]], i32 1, i64* [[DOWN]], i64* [[UP]], i64 [[ST_VAL]], i32 0, i32 0, i64 0, i8* null)
#pragma omp taskloop priority(argc)
for (int i = 0; i < 10; ++i)
;
// CHECK: [[TASKV:%.+]] = call i8* @__kmpc_omp_task_alloc(%ident_t* [[DEFLOC]], i32 [[GTID]], i32 1, i64 72, i64 1, i32 (i32, i8*)* bitcast (i32 (i32, [[TDP_TY:%.+]]*)* [[TASK2:@.+]] to i32 (i32, i8*)*))
// CHECK: [[TASK:%.+]] = bitcast i8* [[TASKV]] to [[TDP_TY]]*
// CHECK: [[TASK_DATA:%.+]] = getelementptr inbounds [[TDP_TY]], [[TDP_TY]]* [[TASK]], i32 0, i32 0
// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 5
// CHECK: store i64 0, i64* [[DOWN]],
// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 6
// CHECK: store i64 9, i64* [[UP]],
// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 7
// CHECK: store i64 1, i64* [[ST]],
// CHECK: [[ST_VAL:%.+]] = load i64, i64* [[ST]],
// CHECK: [[GRAINSIZE:%.+]] = zext i32 %{{.+}} to i64
// CHECK: call void @__kmpc_taskloop(%ident_t* [[DEFLOC]], i32 [[GTID]], i8* [[TASKV]], i32 1, i64* [[DOWN]], i64* [[UP]], i64 [[ST_VAL]], i32 1, i32 1, i64 [[GRAINSIZE]], i8* null)
#pragma omp taskloop nogroup grainsize(argc)
for (int i = 0; i < 10; ++i)
;
// CHECK: [[TASKV:%.+]] = call i8* @__kmpc_omp_task_alloc(%ident_t* [[DEFLOC]], i32 [[GTID]], i32 1, i64 72, i64 24, i32 (i32, i8*)* bitcast (i32 (i32, [[TDP_TY:%.+]]*)* [[TASK3:@.+]] to i32 (i32, i8*)*))
// CHECK: [[TASK:%.+]] = bitcast i8* [[TASKV]] to [[TDP_TY]]*
// CHECK: [[TASK_DATA:%.+]] = getelementptr inbounds [[TDP_TY]], [[TDP_TY]]* [[TASK]], i32 0, i32 0
// CHECK: [[IF:%.+]] = icmp ne i32 %{{.+}}, 0
// CHECK: [[IF_INT:%.+]] = sext i1 [[IF]] to i32
// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 5
// CHECK: store i64 0, i64* [[DOWN]],
// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 6
// CHECK: store i64 %{{.+}}, i64* [[UP]],
// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 7
// CHECK: store i64 1, i64* [[ST]],
// CHECK: [[ST_VAL:%.+]] = load i64, i64* [[ST]],
// CHECK: call void @__kmpc_taskloop(%ident_t* [[DEFLOC]], i32 [[GTID]], i8* [[TASKV]], i32 [[IF_INT]], i64* [[DOWN]], i64* [[UP]], i64 [[ST_VAL]], i32 0, i32 2, i64 4, i8* null)
int i;
#pragma omp taskloop if(argc) shared(argc, argv) collapse(2) num_tasks(4)
for (i = 0; i < argc; ++i)
for (int j = argc; j < argv[argc][argc]; ++j)
;
}
// CHECK: define internal i32 [[TASK1]](
// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* %{{.+}}, i32 0, i32 5
// CHECK: [[DOWN_VAL:%.+]] = load i64, i64* [[DOWN]],
// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 6
// CHECK: [[UP_VAL:%.+]] = load i64, i64* [[UP]],
// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 7
// CHECK: [[ST_VAL:%.+]] = load i64, i64* [[ST]],
// CHECK: [[LITER:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 8
// CHECK: [[LITER_VAL:%.+]] = load i32, i32* [[LITER]],
// CHECK: store i64 [[DOWN_VAL]], i64* [[LB:%[^,]+]],
// CHECK: store i64 [[UP_VAL]], i64* [[UB:%[^,]+]],
// CHECK: store i64 [[ST_VAL]], i64* [[ST:%[^,]+]],
// CHECK: store i32 [[LITER_VAL]], i32* [[LITER:%[^,]+]],
// CHECK: [[LB_VAL:%.+]] = load i64, i64* [[LB]],
// CHECK: [[LB_I32:%.+]] = trunc i64 [[LB_VAL]] to i32
// CHECK: store i32 [[LB_I32]], i32* [[CNT:%.+]],
// CHECK: br label
// CHECK: [[VAL:%.+]] = load i32, i32* [[CNT]],
// CHECK: [[VAL_I64:%.+]] = sext i32 [[VAL]] to i64
// CHECK: [[UB_VAL:%.+]] = load i64, i64* [[UB]],
// CHECK: [[CMP:%.+]] = icmp ule i64 [[VAL_I64]], [[UB_VAL]]
// CHECK: br i1 [[CMP]], label %{{.+}}, label %{{.+}}
// CHECK: load i32, i32* %
// CHECK: store i32 %
// CHECK: load i32, i32* %
// CHECK: add nsw i32 %{{.+}}, 1
// CHECK: store i32 %{{.+}}, i32* %
// CHECK: br label %
// CHECK: ret i32 0
// CHECK: define internal i32 [[TASK2]](
// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* %{{.+}}, i32 0, i32 5
// CHECK: [[DOWN_VAL:%.+]] = load i64, i64* [[DOWN]],
// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 6
// CHECK: [[UP_VAL:%.+]] = load i64, i64* [[UP]],
// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 7
// CHECK: [[ST_VAL:%.+]] = load i64, i64* [[ST]],
// CHECK: [[LITER:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 8
// CHECK: [[LITER_VAL:%.+]] = load i32, i32* [[LITER]],
// CHECK: store i64 [[DOWN_VAL]], i64* [[LB:%[^,]+]],
// CHECK: store i64 [[UP_VAL]], i64* [[UB:%[^,]+]],
// CHECK: store i64 [[ST_VAL]], i64* [[ST:%[^,]+]],
// CHECK: store i32 [[LITER_VAL]], i32* [[LITER:%[^,]+]],
// CHECK: [[LB_VAL:%.+]] = load i64, i64* [[LB]],
// CHECK: [[LB_I32:%.+]] = trunc i64 [[LB_VAL]] to i32
// CHECK: store i32 [[LB_I32]], i32* [[CNT:%.+]],
// CHECK: br label
// CHECK: [[VAL:%.+]] = load i32, i32* [[CNT]],
// CHECK: [[VAL_I64:%.+]] = sext i32 [[VAL]] to i64
// CHECK: [[UB_VAL:%.+]] = load i64, i64* [[UB]],
// CHECK: [[CMP:%.+]] = icmp ule i64 [[VAL_I64]], [[UB_VAL]]
// CHECK: br i1 [[CMP]], label %{{.+}}, label %{{.+}}
// CHECK: load i32, i32* %
// CHECK: store i32 %
// CHECK: load i32, i32* %
// CHECK: add nsw i32 %{{.+}}, 1
// CHECK: store i32 %{{.+}}, i32* %
// CHECK: br label %
// CHECK: ret i32 0
// CHECK: define internal i32 [[TASK3]](
// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* %{{.+}}, i32 0, i32 5
// CHECK: [[DOWN_VAL:%.+]] = load i64, i64* [[DOWN]],
// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 6
// CHECK: [[UP_VAL:%.+]] = load i64, i64* [[UP]],
// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 7
// CHECK: [[ST_VAL:%.+]] = load i64, i64* [[ST]],
// CHECK: [[LITER:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 8
// CHECK: [[LITER_VAL:%.+]] = load i32, i32* [[LITER]],
// CHECK: store i64 [[DOWN_VAL]], i64* [[LB:%[^,]+]],
// CHECK: store i64 [[UP_VAL]], i64* [[UB:%[^,]+]],
// CHECK: store i64 [[ST_VAL]], i64* [[ST:%[^,]+]],
// CHECK: store i32 [[LITER_VAL]], i32* [[LITER:%[^,]+]],
// CHECK: [[LB_VAL:%.+]] = load i64, i64* [[LB]],
// CHECK: store i64 [[LB_VAL]], i64* [[CNT:%.+]],
// CHECK: br label
// CHECK: ret i32 0
// CHECK-LABEL: @_ZN1SC2Ei
struct S {
int a;
S(int c) {
// CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num(%ident_t* [[DEFLOC:@.+]])
// CHECK: [[TASKV:%.+]] = call i8* @__kmpc_omp_task_alloc(%ident_t* [[DEFLOC]], i32 [[GTID]], i32 1, i64 72, i64 16, i32 (i32, i8*)* bitcast (i32 (i32, [[TDP_TY:%.+]]*)* [[TASK4:@.+]] to i32 (i32, i8*)*))
// CHECK: [[TASK:%.+]] = bitcast i8* [[TASKV]] to [[TDP_TY]]*
// CHECK: [[TASK_DATA:%.+]] = getelementptr inbounds [[TDP_TY]], [[TDP_TY]]* [[TASK]], i32 0, i32 0
// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 5
// CHECK: store i64 0, i64* [[DOWN]],
// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 6
// CHECK: store i64 %{{.+}}, i64* [[UP]],
// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 7
// CHECK: store i64 1, i64* [[ST]],
// CHECK: [[ST_VAL:%.+]] = load i64, i64* [[ST]],
// CHECK: [[NUM_TASKS:%.+]] = zext i32 %{{.+}} to i64
// CHECK: call void @__kmpc_taskloop(%ident_t* [[DEFLOC]], i32 [[GTID]], i8* [[TASKV]], i32 1, i64* [[DOWN]], i64* [[UP]], i64 [[ST_VAL]], i32 0, i32 2, i64 [[NUM_TASKS]], i8* null)
#pragma omp taskloop shared(c) num_tasks(a)
for (a = 0; a < c; ++a)
;
}
} s(1);
// CHECK: define internal i32 [[TASK4]](
// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* %{{.+}}, i32 0, i32 5
// CHECK: [[DOWN_VAL:%.+]] = load i64, i64* [[DOWN]],
// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 6
// CHECK: [[UP_VAL:%.+]] = load i64, i64* [[UP]],
// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 7
// CHECK: [[ST_VAL:%.+]] = load i64, i64* [[ST]],
// CHECK: [[LITER:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 8
// CHECK: [[LITER_VAL:%.+]] = load i32, i32* [[LITER]],
// CHECK: store i64 [[DOWN_VAL]], i64* [[LB:%[^,]+]],
// CHECK: store i64 [[UP_VAL]], i64* [[UB:%[^,]+]],
// CHECK: store i64 [[ST_VAL]], i64* [[ST:%[^,]+]],
// CHECK: store i32 [[LITER_VAL]], i32* [[LITER:%[^,]+]],
// CHECK: [[LB_VAL:%.+]] = load i64, i64* [[LB]],
// CHECK: [[LB_I32:%.+]] = trunc i64 [[LB_VAL]] to i32
// CHECK: store i32 [[LB_I32]], i32* [[CNT:%.+]],
// CHECK: br label
// CHECK: [[VAL:%.+]] = load i32, i32* [[CNT]],
// CHECK: [[VAL_I64:%.+]] = sext i32 [[VAL]] to i64
// CHECK: [[UB_VAL:%.+]] = load i64, i64* [[UB]],
// CHECK: [[CMP:%.+]] = icmp ule i64 [[VAL_I64]], [[UB_VAL]]
// CHECK: br i1 [[CMP]], label %{{.+}}, label %{{.+}}
// CHECK: load i32, i32* %
// CHECK: store i32 %
// CHECK: load i32, i32* %
// CHECK: add nsw i32 %{{.+}}, 1
// CHECK: store i32 %{{.+}}, i32* %
// CHECK: br label %
// CHECK: ret i32 0
#endif
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