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[debuginfo-tests] Add string NRVO test for PR34513 

It should pass in -O0 and -O1 after r313400 and r313399.

llvm-svn: 313401
This commit is contained in:
Reid Kleckner 2017-09-15 21:59:39 +00:00
parent 3a66c1cb58
commit 496ecab2ba
1 changed files with 27 additions and 0 deletions
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debuginfo-tests/nrvo-string.cpp Normal file
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// This ensures that DW_OP_deref is inserted when necessary, such as when NRVO
// of a string object occurs in C++.
//
// RUN: %clangxx -O0 -fno-exceptions %target_itanium_abi_host_triple %s -o %t.out -g
// RUN: %test_debuginfo %s %t.out
// RUN: %clangxx -O1 -fno-exceptions %target_itanium_abi_host_triple %s -o %t.out -g
// RUN: %test_debuginfo %s %t.out
//
// PR34513
struct string {
string() {}
string(int i) : i(i) {}
~string() {}
int i = 0;
};
string get_string() {
string unused;
string result = 3;
// DEBUGGER: break 21
return result;
}
int main() { get_string(); }
// DEBUGGER: r
// DEBUGGER: print result.i
// CHECK: = 3