Creating release_70 branch off revision 338536

{

  "conduit_uri" : "https://reviews.llvm.org/"

}

# Debug Info tests.  These tests invoke clang to generate programs with

# various types of debug info, and then run those programs under a debugger

# such as GDB or LLDB to verify the results.

set(DEBUGINFO_TESTS_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})

set(DEBUGINFO_TESTS_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})

set(DEBUGINFO_TEST_DEPS

  clang

  FileCheck

  count

  llvm-objdump

  not

  )

configure_lit_site_cfg(

  ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in

  ${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg.py

  MAIN_CONFIG

  ${CMAKE_CURRENT_SOURCE_DIR}/lit.cfg.py

  )

add_lit_testsuite(check-debuginfo "Running debug info integration tests"

  ${CMAKE_CURRENT_BINARY_DIR}

  DEPENDS ${DEBUGINFO_TEST_DEPS}

  )

set_target_properties(check-debuginfo PROPERTIES FOLDER "Debug info tests")

                                                                   -*- rst -*-

This is a collection of tests to check debugging information generated by 

compiler. This test suite can be checked out inside clang/test folder. This 

will enable 'make test' for clang to pick up these tests. Typically, test 

cases included here includes debugger commands and intended debugger output 

as comments in source file using DEBUGGER: and CHECK: as prefixes respectively.

For example::

  define i32 @f1(i32 %i) nounwind ssp {

  ; DEBUGGER: break f1

  ; DEBUGGER: r

  ; DEBUGGER: p i 

  ; CHECK: $1 = 42 

  entry:

  }

is a testcase where the debugger is asked to break at function 'f1' and 

print value of argument 'i'. The expected value of 'i' is 42 in this case.

// RUN: %clangxx %target_itanium_abi_host_triple -O0 -g %s -c -o %t.o

// RUN: %clangxx %target_itanium_abi_host_triple %t.o -o %t.out

// RUN: %test_debuginfo %s %t.out 

// Radar 8945514

// DEBUGGER: break 22

// DEBUGGER: r

// DEBUGGER: p v

// CHECK: ${{[0-9]+}} =

// CHECK:  Data ={{.*}} 0x0{{(0*)}}

// CHECK:  Kind = 2142

class SVal {

public:

  ~SVal() {}

  const void* Data;

  unsigned Kind;

};

void bar(SVal &v) {}

class A {

public:

  void foo(SVal v) { bar(v); }

};

int main() {

  SVal v;

  v.Data = 0;

  v.Kind = 2142;

  A a;

  a.foo(v);

  return 0;

}

// REQUIRES: system-darwin

// Test that clang produces the __apple accelerator tables,

// e.g., __apple_types, correctly.

// These sections are going to be retired in DWARF 5, so we hardcode

// the DWARF version in the tests.

// RUN: %clang %s %target_itanium_abi_host_triple -gdwarf-2 -O0 -c -g -o %t-ex

// RUN: llvm-objdump -section-headers %t-ex | FileCheck %s

// RUN: %clang %s %target_itanium_abi_host_triple -gdwarf-4 -O0 -c -g -o %t-ex

// RUN: llvm-objdump -section-headers %t-ex | FileCheck %s

// A function in a different section forces the compiler to create the 

// __debug_ranges section.

__attribute__((section("1,__text_foo"))) void foo() {}

int main (int argc, char const *argv[]) { return argc; }

// CHECK: __debug_str

// CHECK-NEXT: __debug_abbrev

// CHECK-NEXT: __debug_info

// CHECK-NEXT: __debug_ranges

// CHECK-NEXT: __debug_macinfo

// CHECK-NEXT: __apple_names

// CHECK-NEXT: __apple_objc

// CHECK-NEXT: __apple_namespac

// CHECK-NEXT: __apple_types