clang/test/OpenMP/bug56913.c

   1 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --function-signature --include-generated-funcs --prefix-filecheck-ir-name _
   2 // RUN: %clang_cc1 -fopenmp-simd -O1 -x c -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck %s --check-prefix=CHECK
   3
   4 int j;
   5 int *u;
   6
   7 void loop(int n) {
   8   int i;
   9 #pragma omp parallel master taskloop simd linear(j)
  10   for (i = 0; i < n; ++i) {
  11     ++j;
  12     u = &j;
  13   }
  14 }
  15 // CHECK-LABEL: define {{[^@]+}}@loop
  16 // CHECK-SAME: (i32 noundef [[N:%.*]]) local_unnamed_addr #[[ATTR0:[0-9]+]] {
  17 // CHECK-NEXT:  entry:
  18 // CHECK-NEXT:    [[J:%.*]] = alloca i32, align 4
  19 // CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[N]], 0
  20 // CHECK-NEXT:    br i1 [[CMP]], label [[SIMD_IF_THEN:%.*]], label [[SIMD_IF_END:%.*]]
  21 // CHECK:       simd.if.then:
  22 // CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr @j, align 4, !tbaa [[TBAA2:![0-9]+]]
  23 // CHECK-NEXT:    call void @llvm.lifetime.start.p0(i64 4, ptr nonnull [[J]]) #[[ATTR2:[0-9]+]]
  24 // CHECK-NEXT:    store ptr [[J]], ptr @u, align 8, !tbaa [[TBAA6:![0-9]+]], !llvm.access.group [[ACC_GRP8:![0-9]+]]
  25 // CHECK-NEXT:    [[INC_LE:%.*]] = add i32 [[TMP0]], [[N]]
  26 // CHECK-NEXT:    store i32 [[INC_LE]], ptr [[J]], align 4, !tbaa [[TBAA2]]
  27 // CHECK-NEXT:    store i32 [[INC_LE]], ptr @j, align 4, !tbaa [[TBAA2]]
  28 // CHECK-NEXT:    call void @llvm.lifetime.end.p0(i64 4, ptr nonnull [[J]]) #[[ATTR2]]
  29 // CHECK-NEXT:    br label [[SIMD_IF_END]]
  30 // CHECK:       simd.if.end:
  31 // CHECK-NEXT:    ret void
  32 //