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CodeGenCXX: Test that linetables work with variadic virtual thunks 

Add a frontend test for PR22929, which was fixed by LLVM r232449.
Besides the crash test, check that the `!dbg` attachment is sane since
its presence was the trigger.

llvm-svn: 232450
This commit is contained in:
Duncan P. N. Exon Smith 2015-03-17 01:19:01 +00:00
parent 170c26d75e
commit a7fd07f3fc
1 changed files with 23 additions and 0 deletions
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23
clang/test/CodeGenCXX/linetable-virtual-variadic.cpp Normal file
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// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -gline-tables-only %s -o - | FileCheck %s
// Crasher for PR22929.
class Base {
virtual void VariadicFunction(...);
};
class Derived : public virtual Base {
virtual void VariadicFunction(...);
};
void Derived::VariadicFunction(...) { }
// CHECK-LABEL: define void @_ZN7Derived16VariadicFunctionEz(
// CHECK: ret void, !dbg ![[LOC:[0-9]+]]
// CHECK-LABEL: define void @_ZT{{.+}}N7Derived16VariadicFunctionEz(
// CHECK: ret void, !dbg ![[LOC:[0-9]+]]
//
// CHECK: !llvm.dbg.cu = !{![[CU:[0-9]+]]}
//
// CHECK: ![[CU]] = !MDCompileUnit({{.*}} subprograms: ![[SPs:[0-9]+]]
// CHECK: ![[SPs]] = !{![[SP:[0-9]+]]}
// CHECK: ![[SP]] = !MDSubprogram(name: "VariadicFunction",{{.*}} function: {{[^:]+}} @_ZN7Derived16VariadicFunctionEz
// CHECK: ![[LOC]] = !MDLocation({{.*}}scope: ![[SP]])