[OPENMP 4.5] Initial codegen for 'taskloop simd' directive.

OpenMP 4.5 defines 'taskloop simd' directive, which is combined
directive for 'taskloop' and 'simd' directives. Patch adds initial
codegen support for this directive and its 2 basic clauses 'safelen' and
'simdlen'.

llvm-svn: 267872

1 files changed, 211 insertions, 0 deletions

diff --git a/clang/test/OpenMP/taskloop_simd_codegen.cpp b/clang/test/OpenMP/taskloop_simd_codegen.cpp
new file mode 100644
index 00000000000..e1f0130c0b4
--- /dev/null
+++ b/clang/test/OpenMP/taskloop_simd_codegen.cpp
@@ -0,0 +1,211 @@
+// 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 1, i64 64, 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: getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 3
+// CHECK: store i32 (i32, i8*)* null, i32 (i32, i8*)** %{{.+}}
+// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 4
+// CHECK: store i64 0, i64* [[DOWN]],
+// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 5
+// CHECK: store i64 9, i64* [[UP]],
+// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 6
+// 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 simd
+  for (int i = 0; i < 10; ++i)
+    ;
+// CHECK: [[TASKV:%.+]] = call i8* @__kmpc_omp_task_alloc(%ident_t* [[DEFLOC]], i32 [[GTID]], i32 1, i64 64, 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: getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 3
+// CHECK: store i32 (i32, i8*)* null, i32 (i32, i8*)** %{{.+}}
+// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 4
+// CHECK: store i64 0, i64* [[DOWN]],
+// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 5
+// CHECK: store i64 9, i64* [[UP]],
+// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 6
+// 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 simd nogroup grainsize(argc) simdlen(4)
+  for (int i = 0; i < 10; ++i)
+    ;
+// CHECK: [[TASKV:%.+]] = call i8* @__kmpc_omp_task_alloc(%ident_t* [[DEFLOC]], i32 [[GTID]], i32 1, i64 64, 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: getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 3
+// CHECK: store i32 (i32, i8*)* null, i32 (i32, i8*)** %{{.+}}
+// 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 4
+// CHECK: store i64 0, i64* [[DOWN]],
+// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 5
+// CHECK: store i64 %{{.+}}, i64* [[UP]],
+// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 6
+// 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 simd if(argc) shared(argc, argv) collapse(2) num_tasks(4) safelen(32)
+  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 4
+// CHECK: [[DOWN_VAL:%.+]] = load i64, i64* [[DOWN]],
+// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 5
+// CHECK: [[UP_VAL:%.+]] = load i64, i64* [[UP]],
+// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 6
+// CHECK: [[ST_VAL:%.+]] = load i64, i64* [[ST]],
+// CHECK: [[LITER:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 7
+// 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]],{{.*}}!llvm.mem.parallel_loop_access [[LOOP1:!.+]]
+// CHECK: [[VAL_I64:%.+]] = sext i32 [[VAL]] to i64
+// CHECK: [[UB_VAL:%.+]] = load i64, i64* [[UB]],{{.*}}!llvm.mem.parallel_loop_access [[LOOP1]]
+// CHECK: [[CMP:%.+]] = icmp ule i64 [[VAL_I64]], [[UB_VAL]]
+// CHECK: br i1 [[CMP]], label %{{.+}}, label %{{.+}}
+// CHECK: load i32, i32* %{{.*}}!llvm.mem.parallel_loop_access [[LOOP1]]
+// CHECK: store i32 %{{.*}}!llvm.mem.parallel_loop_access [[LOOP1]]
+// CHECK: load i32, i32* %{{.*}}!llvm.mem.parallel_loop_access [[LOOP1]]
+// CHECK: add nsw i32 %{{.+}}, 1
+// CHECK: store i32 %{{.+}}, i32* %{{.*}}!llvm.mem.parallel_loop_access [[LOOP1]]
+// CHECK: br label %{{.*}}!llvm.loop [[LOOP1]]
+// CHECK: ret i32 0
+
+// CHECK: define internal i32 [[TASK2]](
+// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* %{{.+}}, i32 0, i32 4
+// CHECK: [[DOWN_VAL:%.+]] = load i64, i64* [[DOWN]],
+// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 5
+// CHECK: [[UP_VAL:%.+]] = load i64, i64* [[UP]],
+// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 6
+// CHECK: [[ST_VAL:%.+]] = load i64, i64* [[ST]],
+// CHECK: [[LITER:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 7
+// 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]],{{.*}}!llvm.mem.parallel_loop_access [[LOOP2:!.+]]
+// CHECK: [[VAL_I64:%.+]] = sext i32 [[VAL]] to i64
+// CHECK: [[UB_VAL:%.+]] = load i64, i64* [[UB]],{{.*}}!llvm.mem.parallel_loop_access [[LOOP2]]
+// CHECK: [[CMP:%.+]] = icmp ule i64 [[VAL_I64]], [[UB_VAL]]
+// CHECK: br i1 [[CMP]], label %{{.+}}, label %{{.+}}
+// CHECK: load i32, i32* %{{.*}}!llvm.mem.parallel_loop_access [[LOOP2]]
+// CHECK: store i32 %{{.*}}!llvm.mem.parallel_loop_access [[LOOP2]]
+// CHECK: load i32, i32* %{{.*}}!llvm.mem.parallel_loop_access [[LOOP2]]
+// CHECK: add nsw i32 %{{.+}}, 1
+// CHECK: store i32 %{{.+}}, i32* %{{.*}}!llvm.mem.parallel_loop_access [[LOOP2]]
+// CHECK: br label %{{.*}}!llvm.loop [[LOOP2]]
+// CHECK: ret i32 0
+
+// CHECK: define internal i32 [[TASK3]](
+// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* %{{.+}}, i32 0, i32 4
+// CHECK: [[DOWN_VAL:%.+]] = load i64, i64* [[DOWN]],
+// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 5
+// CHECK: [[UP_VAL:%.+]] = load i64, i64* [[UP]],
+// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 6
+// CHECK: [[ST_VAL:%.+]] = load i64, i64* [[ST]],
+// CHECK: [[LITER:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 7
+// 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-NOT: !llvm.mem.parallel_loop_access
+// CHECK: br label %{{.*}}!llvm.loop
+// 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 64, 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: getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 3
+// CHECK: store i32 (i32, i8*)* null, i32 (i32, i8*)** %{{.+}}
+// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 4
+// CHECK: store i64 0, i64* [[DOWN]],
+// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 5
+// CHECK: store i64 %{{.+}}, i64* [[UP]],
+// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* [[TASK_DATA]], i32 0, i32 6
+// 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 simd shared(c) num_tasks(a) simdlen(64) safelen(8)
+    for (a = 0; a < c; ++a)
+      ;
+  }
+} s(1);
+
+// CHECK: define internal i32 [[TASK4]](
+// CHECK: [[DOWN:%.+]] = getelementptr inbounds [[TD_TY:%.+]], [[TD_TY]]* %{{.+}}, i32 0, i32 4
+// CHECK: [[DOWN_VAL:%.+]] = load i64, i64* [[DOWN]],
+// CHECK: [[UP:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 5
+// CHECK: [[UP_VAL:%.+]] = load i64, i64* [[UP]],
+// CHECK: [[ST:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 6
+// CHECK: [[ST_VAL:%.+]] = load i64, i64* [[ST]],
+// CHECK: [[LITER:%.+]] = getelementptr inbounds [[TD_TY]], [[TD_TY]]* %{{.+}}, i32 0, i32 7
+// 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-NOT: !llvm.mem.parallel_loop_access
+// CHECK: store i32 %
+// CHECK-NOT: !llvm.mem.parallel_loop_access
+// CHECK: load i32, i32* %
+// CHECK-NOT: !llvm.mem.parallel_loop_access
+// CHECK: add nsw i32 %{{.+}}, 1
+// CHECK: store i32 %{{.+}}, i32* %
+// CHECK-NOT: !llvm.mem.parallel_loop_access
+// CHECK: br label %{{.*}}!llvm.loop
+// CHECK: ret i32 0
+
+// CHECK: !{!"llvm.loop.vectorize.enable", i1 true}
+// CHECK: !{!"llvm.loop.vectorize.width", i32 4}
+// CHECK: !{!"llvm.loop.vectorize.width", i32 32}
+// CHECK: !{!"llvm.loop.vectorize.width", i32 64}
+
+#endif