Minimize testcase as per review comments.

Author: abidh

mlir/test/Target/LLVMIR/omptarget-debug.mlir

@@ -5,68 +5,31 @@ module attributes {omp.is_target_device = true} {
     %0 = llvm.mlir.constant(1 : i64) : i64
     %1 = llvm.alloca %0 x i32 : (i64) -> !llvm.ptr<5>
     %2 = llvm.addrspacecast %1 : !llvm.ptr<5> to !llvm.ptr
-    %3 = llvm.mlir.constant(1 : i64) : i64
-    %4 = llvm.alloca %3 x i32 : (i64) -> !llvm.ptr<5>
-    %5 = llvm.addrspacecast %4 : !llvm.ptr<5> to !llvm.ptr
-    %6 = llvm.mlir.constant(1 : i64) : i64
-    %7 = llvm.alloca %6 x i32 : (i64) -> !llvm.ptr<5>
-    %8 = llvm.addrspacecast %7 : !llvm.ptr<5> to !llvm.ptr
-    %9 = omp.map_info var_ptr(%2 : !llvm.ptr, i32) map_clauses(tofrom) capture(ByRef) -> !llvm.ptr {name = ""}
-    %10 = omp.map_info var_ptr(%5 : !llvm.ptr, i32) map_clauses(tofrom) capture(ByRef) -> !llvm.ptr {name = ""}
-    omp.target map_entries(%9 -> %arg0, %10 -> %arg1 : !llvm.ptr, !llvm.ptr) {
+    %9 = omp.map.info var_ptr(%2 : !llvm.ptr, i32) map_clauses(tofrom) capture(ByRef) -> !llvm.ptr {name = ""}
+    omp.target map_entries(%9 -> %arg0 : !llvm.ptr) {
     ^bb0(%arg0: !llvm.ptr, %arg1: !llvm.ptr):
-      %12 = llvm.mlir.constant(2 : i32) : i32
       %13 = llvm.mlir.constant(1 : i32) : i32
       %14 = llvm.load %arg0 : !llvm.ptr -> i32 loc(#loc2)
       %15 = llvm.add %14, %13  : i32 loc(#loc2)
       llvm.store %15, %arg0 : i32, !llvm.ptr loc(#loc2)
-      %16 = llvm.load %arg0 : !llvm.ptr -> i32 loc(#loc3)
-      %17 = llvm.add %16, %12  : i32 loc(#loc3)
-      llvm.store %17, %arg1 : i32, !llvm.ptr loc(#loc3)
-      omp.terminator
-    }
-    %11 = omp.map_info var_ptr(%8 : !llvm.ptr, i32) map_clauses(tofrom) capture(ByRef) -> !llvm.ptr {name = ""}
-    omp.target map_entries(%11 -> %arg0 : !llvm.ptr) {
-    ^bb0(%arg0: !llvm.ptr):
-      %12 = llvm.mlir.constant(1 : i32) : i32
-      omp.parallel {
-        %13 = llvm.load %arg0 : !llvm.ptr -> i32 loc(#loc4)
-        %14 = llvm.add %13, %12  : i32 loc(#loc4)
-        llvm.store %14, %arg0 : i32, !llvm.ptr loc(#loc4)
-        omp.terminator
-      }
       omp.terminator
     }
     llvm.return
   } loc(#loc5)
-} loc(#loc)
+}
 #di_basic_type = #llvm.di_basic_type<tag = DW_TAG_base_type, name = "void", encoding = DW_ATE_address>
 #di_file = #llvm.di_file<"target.f90" in "">
-#loc = loc("target.f90":0:0)
 #loc1 = loc("target.f90":1:1)
-#loc2 = loc("target.f90":9:3)
-#loc3 = loc("target.f90":10:3)
-#loc4 = loc("target.f90":14:3)
+#loc2 = loc("target.f90":46:3)
+
 #di_compile_unit = #llvm.di_compile_unit<id = distinct[0]<>, sourceLanguage = DW_LANG_Fortran95, file = #di_file, producer = "Flang", isOptimized = false, emissionKind = LineTablesOnly>
 #di_subroutine_type = #llvm.di_subroutine_type<callingConvention = DW_CC_normal, types = #di_basic_type, #di_basic_type>
 #di_subprogram = #llvm.di_subprogram<id = distinct[1]<>, compileUnit = #di_compile_unit, scope = #di_file, name = "_QQmain", linkageName = "_QQmain", file = #di_file, line = 1, scopeLine = 1, subprogramFlags = "Definition|Optimized", type = #di_subroutine_type>
 #loc5 = loc(fused<#di_subprogram>[#loc1])
 
-// 8:  !$omp target map(tofrom: a, b)
-// 9:  a = a + 1
-//10:  b = a + 2
-//11:  !$omp end target
-
-//13:  !$omp target parallel map(tofrom: a, b)
-//14:  c = c + 1
-//15:  !$omp end target parallel
-
-// CHECK-DAG: [[FILE:.*]] = !DIFile(filename: "target.f90", directory: "")
-// CHECK-DAG: [[CU:.*]] = distinct !DICompileUnit(language: DW_LANG_Fortran95, file: [[FILE]], {{.*}})
-
-// CHECK: [[SP1:.*]] = distinct !DISubprogram(name: "__omp_offloading_{{.*}}", {{.*}}, unit: [[CU]])
-// CHECK-DAG: !DILocation(line: 9, column: 3, scope: [[SP1]])
-// CHECK-DAG: !DILocation(line: 10, column: 3, scope: [[SP1]])
+// 45:  !$omp target map(tofrom: a)
+// 46:  a = a + 1
+// 47:  !$omp end target
 
-// CHECK: [[SP2:.*]] = distinct !DISubprogram(name: "__omp_offloading_{{.*}}omp_par", {{.*}}, unit: [[CU]])
-// CHECK: !DILocation(line: 14, column: 3, scope: [[SP2]])
+// CHECK: [[SP:.*]] = distinct !DISubprogram(name: "__omp_offloading_{{.*}}"{{.*}})
+// CHECK-DAG: !DILocation(line: 46, column: 3, scope: [[SP]])