clang/test/Frontend/profile-sample-use-loc-tracking.c

   1 // This file tests that -fprofile-sample-use enables location tracking
   2 // generation in the same way that -Rpass does. The sample profiler needs
   3 // to associate line locations in the profile to the code, so it needs the
   4 // frontend to emit source location annotations.
   5
   6 // RUN: %clang_cc1 %s -fprofile-sample-use=%S/Inputs/profile-sample-use-loc-tracking.prof -emit-llvm -o - 2>/dev/null | FileCheck %s
   7
   8 // -fprofile-sample-use should produce source location annotations, exclusively
   9 // (just like -gmlt).
  10 // CHECK: , !dbg !
  11 // CHECK-NOT: DW_TAG_base_type
  12
  13 // The CU should be marked NoDebug (to prevent writing debug info to
  14 // the final output).
  15 // CHECK: !llvm.dbg.cu = !{![[CU:.*]]}
  16 // CHECK: ![[CU]] = distinct !DICompileUnit({{.*}}emissionKind: NoDebug
  17
  18 int bar(int j) {
  19   return (j + j - 2) * (j - 2) * j;
  20 }