[clang] default clause replaced by otherwise clause for metadirective in OpenMP 5.2 (PR #128640)

[Alexey Bataev via cfe-commits]

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@@ -117,9 +45,66 @@ void func3() {
 // CHECK-NEXT:    [[TMP1:%.*]] = load i32, ptr [[I]], align 4
 // CHECK-NEXT:    [[INC:%.*]] = add nsw i32 [[TMP1]], 1
 // CHECK-NEXT:    store i32 [[INC]], ptr [[I]], align 4
-// CHECK-NEXT:    br label [[FOR_COND:%.*]]
+// CHECK-NEXT:    br label [[FOR_COND:%.*]], !llvm.loop ![[LOOPID:[0-9]+]]
 // CHECK:for.end:
 // CHECK-NEXT:  ret void
 // CHECK-NEXT:}
 
-#endif
+// CHECK-LABEL: define internal void @_Z5func4v.omp_outlined.1
+// CHECK-SAME: (ptr noalias noundef [[DOTGLOBAL_TID_:%.*]],
+// CHECK-SAME:  ptr noalias noundef [[DOTBOUND_TID_:%.*]])
+// CHECK-NEXT:  entry
+// CHECK-NEXT:    [[GLOB_TID__ADDR:%.*]] = alloca ptr, align 8
+// CHECK-NEXT:    [[BOUND_TID__ADDR:%.*]] = alloca ptr, align 8
+// CHECK:       [[OMP_IV:%.*]] = alloca i32, align 4
+// CHECK-NEXT:  [[TMP:%.*]] = alloca i32, align 4
+// CHECK-NEXT:  [[OMP_LB:%.*]] = alloca i32, align 4
+// CHECK-NEXT:  [[OMP_UB:%.*]] = alloca i32, align 4
+// CHECK-NEXT:  [[OMP_STRIDE:%.*]] = alloca i32, align 4
+// CHECK-NEXT:  [[OMP_IS_LAST:%.*]] = alloca i32, align 4
+// CHECK-NEXT:  [[I:%.*]] = alloca i32, align 4
+// CHECK-NEXT:    store ptr [[DOTGLOBAL_TID_]], ptr [[GLOB_TID__ADDR]], align 8
+// CHECK-NEXT:    store ptr [[DOTBOUND_TID_]], ptr [[BOUND_TID__ADDR]], align 8
+// CHECK:       store i32 0, ptr [[OMP_LB:%.*]], align 4
+// CHECK-NEXT:  store i32 99, ptr [[OMP_UB:%.*]], align 4
+// CHECK-NEXT:  store i32 1, ptr [[OMP_STRIDE:%.*]], align 4
+// CHECK-NEXT:  store i32 0, ptr [[OMP_IS_LAST:%.*]], align 4
+// CHECK-NEXT:  [[TID_PTR:%.*]] = load ptr, ptr [[GLOBAL_TID_ADDR:%.*]], align 8
+// CHECK-NEXT:  [[TID:%.*]] = load i32, ptr [[TID_PTR]], align 4
+// CHECK-NEXT:  call void @__kmpc_for_static_init_4(ptr @2, i32 [[TID]], i32 34, ptr [[OMP_IS_LAST]], ptr [[OMP_LB]], ptr [[OMP_UB]], ptr [[OMP_STRIDE]], i32 1, i32 1)
+// CHECK:       [[UB_VAL:%.*]] = load i32, ptr [[OMP_UB]], align 4
+// CHECK-NEXT:  [[CMP:%.*]] = icmp sgt i32 [[UB_VAL]], 99
+// CHECK-NEXT:  br i1 [[CMP]], label %cond.true, label %cond.false
+// CHECK:       cond.true:
+// CHECK-NEXT:  br label %cond.end
+// CHECK:       cond.false:
+// CHECK-NEXT:  [[UB_NEW:%.*]] = load i32, ptr [[OMP_UB]], align 4
+// CHECK-NEXT:  br label %cond.end
+// CHECK:       cond.end:
+// CHECK-NEXT:  [[FINAL_UB:%.*]] = phi i32 [ 99, %cond.true ], [ [[UB_NEW]], %cond.false ]
+// CHECK-NEXT:  store i32 [[FINAL_UB]], ptr [[OMP_UB]], align 4
+// CHECK-NEXT:  [[LB_VAL:%.*]] = load i32, ptr [[OMP_LB]], align 4
+// CHECK-NEXT:  store i32 [[LB_VAL]], ptr [[OMP_IV]], align 4
+// CHECK-NEXT:  br label %omp.inner.for.cond
+// CHECK:       omp.inner.for.cond:
+// CHECK-NEXT:  [[IV_VAL:%.*]] = load i32, ptr [[OMP_IV]], align 4
+// CHECK-NEXT:  [[UB_FINAL:%.*]] = load i32, ptr [[OMP_UB]], align 4
+// CHECK-NEXT:  [[CMP_LOOP:%.*]] = icmp sle i32 [[IV_VAL]], [[UB_FINAL]]
+// CHECK-NEXT:  br i1 [[CMP_LOOP]], label %omp.inner.for.body, label %omp.inner.for.end
+// CHECK:       omp.inner.for.body:
+// CHECK-NEXT:  [[IV_NEW:%.*]] = load i32, ptr [[OMP_IV]], align 4
+// CHECK-NEXT:  [[MUL:%.*]] = mul nsw i32 [[IV_NEW]], 1
+// CHECK-NEXT:  [[ADD:%.*]] = add nsw i32 0, [[MUL]]
+// CHECK-NEXT:  store i32 [[ADD]], ptr [[I]], align 4
+// CHECK-NEXT:  br label %omp.body.continue
+// CHECK:       omp.inner.for.inc:
+// CHECK-NEXT:  [[IV_CURR:%.*]] = load i32, ptr [[OMP_IV]], align 4
+// CHECK-NEXT:  [[IV_NEXT:%.*]] = add nsw i32 [[IV_CURR]], 1
+// CHECK-NEXT:  store i32 [[IV_NEXT]], ptr [[OMP_IV]], align 4
+// CHECK-NEXT:  br label %omp.inner.for.cond
+// CHECK:       omp.loop.exit:
+// CHECK-NEXT:  call void @__kmpc_for_static_fini(ptr @2, i32 [[TID]])
+// CHECK-NEXT:  ret void
+// CHECK-NEXT: }
+
+#endif
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alexey-bataev wrote:

New line

https://github.com/llvm/llvm-project/pull/128640