clang/test/CodeGen/lifetime-debuginfo-2.c

   1 // RUN: %clang_cc1 -O1 -triple x86_64-none-linux-gnu -emit-llvm -debug-info-kind=line-tables-only %s -o - | FileCheck %s
   2 // RUN: %clang_cc1 -O1 -triple x86_64-none-linux-gnu -emit-llvm -debug-info-kind=line-directives-only %s -o - | FileCheck %s
   3
   4 // Inserting lifetime markers should not affect debuginfo: lifetime.end is not
   5 // a destructor, but instrumentation for the compiler. Ensure the debug info for
   6 // the return statement (in the IR) does not point to the function closing '}'
   7 // which is used to show some destructors have been called before leaving the
   8 // function.
   9
  10 extern int f(int);
  11 extern int g(int);
  12
  13 // CHECK-LABEL: define{{.*}} i32 @test
  14 int test(int a, int b) {
  15   int res;
  16
  17   if (a==2) {
  18     int r = f(b);
  19     res = r + b;
  20     a += 2;
  21   } else {
  22     int r = f(a);
  23     res = r + a;
  24     b += 1;
  25   }
  26
  27   return res;
  28 // CHECK: ret i32 %{{.*}}, !dbg [[DI:![0-9]+]]
  29 // CHECK: [[DI]] = !DILocation(line: [[@LINE-2]]
  30 }