32 lines
1.2 KiB
C++
32 lines
1.2 KiB
C++
// RUN: %clang_cc1 -std=c++1y -triple i686-pc-windows-msvc -emit-llvm %s -o - | FileCheck %s
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//CHECK: %[[A_LAMBDA:.*]] = type { %struct.A }
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//CHECK: %[[B_LAMBDA:.*]] = type { %struct.B* }
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struct A {
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double a = 111;
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auto foo() { return [*this] { return a; }; }
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};
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namespace ns1 {
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int X = A{}.foo()();
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} //end ns1
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//CHECK: @"?foo@A@@QAE?A?<auto>@@XZ"(%struct.A* %this, %class.anon* noalias sret %[[A_LAMBDA_RETVAL:.*]])
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// get the first object with the closure type, which is of type 'struct.A'
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//CHECK: %[[I0:.+]] = getelementptr inbounds %[[A_LAMBDA]], %[[A_LAMBDA]]* %[[A_LAMBDA_RETVAL]], i32 0, i32 0
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//CHECK: %[[I1:.+]] = bitcast %struct.A* %[[I0]] to i8*
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//CHECK: %[[I2:.+]] = bitcast %struct.A* %this1 to i8*
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// copy the contents ...
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//CHECK: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 8 %[[I1]], i8* align 8 %[[I2]], i32 8, i1 false)
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struct B {
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double b = 222;
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auto bar() { return [this] { return b; }; };
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};
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namespace ns2 {
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int X = B{}.bar()();
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}
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//CHECK: @"?bar@B@@QAE?A?<auto>@@XZ"(%struct.B* %this, %class.anon.0* noalias sret %agg.result)
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//CHECK: %[[I20:.+]] = getelementptr inbounds %class.anon.0, %class.anon.0* %agg.result, i32 0, i32 0
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//CHECK: store %struct.B* %this1, %struct.B** %[[I20]], align 4
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