Add a coverage test for lambda expression IRGen.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150458 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGenCXX/lambda-expressions.cpp b/test/CodeGenCXX/lambda-expressions.cpp
new file mode 100644 (file)
index 0000000..2376870
--- /dev/null
+++ b/test/CodeGenCXX/lambda-expressions.cpp
@@ -0,0 +1,54 @@
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10.0.0 -emit-llvm -o - %s -fexceptions -std=c++11 | FileCheck %s
+
+int a() { return []{ return 1; }(); }
+// CHECK: define i32 @_Z1av
+// CHECK: call i32 @"_ZZ1avENK3$_0clEv"
+// CHECK: define internal i32 @"_ZZ1avENK3$_0clEv"
+// CHECK: ret i32 1
+
+int b(int x) { return [x]{return x;}(); }
+// CHECK: define i32 @_Z1bi
+// CHECK: store i32
+// CHECK: load i32*
+// CHECK: store i32
+// CHECK: call i32 @"_ZZ1biENK3$_1clEv"
+// CHECK: define internal i32 @"_ZZ1biENK3$_1clEv"
+// CHECK: load i32*
+// CHECK: ret i32
+
+int c(int x) { return [&x]{return x;}(); }
+// CHECK: define i32 @_Z1ci
+// CHECK: store i32
+// CHECK: store i32*
+// CHECK: call i32 @"_ZZ1ciENK3$_2clEv"
+// CHECK: define internal i32 @"_ZZ1ciENK3$_2clEv"
+// CHECK: load i32**
+// CHECK: load i32*
+// CHECK: ret i32
+
+struct D { D(); D(const D&); int x; };
+int d(int x) { D y[10]; [x,y] { return y[x].x; }(); }
+
+// CHECK: define i32 @_Z1di
+// CHECK: call void @_ZN1DC1Ev
+// CHECK: icmp ult i64 %{{.*}}, 10
+// CHECK: call void @_ZN1DC1ERKS_
+// CHECK: call i32 @"_ZZ1diENK3$_3clEv"
+// CHECK: define internal i32 @"_ZZ1diENK3$_3clEv"
+// CHECK: load i32*
+// CHECK: load i32*
+// CHECK: ret i32
+
+struct E { E(); E(const E&); ~E(); int x; };
+int e(E a, E b, bool cond) { [a,b,cond](){ return (cond ? a : b).x; }(); }
+// CHECK: define i32 @_Z1e1ES_b
+// CHECK: call void @_ZN1EC1ERKS_
+// CHECK: invoke void @_ZN1EC1ERKS_
+// CHECK: invoke i32 @"_ZZ1e1ES_bENK3$_4clEv"
+// CHECK: call void @"_ZZ1e1ES_bEN3$_4D1Ev"
+// CHECK: call void @"_ZZ1e1ES_bEN3$_4D1Ev"
+// CHECK: define internal i32 @"_ZZ1e1ES_bENK3$_4clEv"
+// CHECK: trunc i8
+// CHECK: load i32*
+// CHECK: ret i32
+// CHECK: define internal void @"_ZZ1e1ES_bEN3$_4D2Ev"