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| // RUN: %clang_cc1 -std=c++1y -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s
struct S {
S();
S(S &&);
~S();
};
void f() {
(void) [s(S{})] {};
}
// CHECK-LABEL: define void @_Z1fv(
// CHECK: call void @_ZN1SC1Ev(
// CHECK: call void @"_ZZ1fvEN3$_0D1Ev"(
// CHECK-LABEL: define internal void @"_ZZ1fvEN3$_0D1Ev"(
// CHECK: @"_ZZ1fvEN3$_0D2Ev"(
// D2 at end of file.
void g() {
[a(1), b(2)] { return a + b; } ();
}
// CHECK-LABEL: define void @_Z1gv(
// CHECK: getelementptr inbounds {{.*}}, i32 0, i32 0
// CHECK: store i32 1, i32*
// CHECK: getelementptr inbounds {{.*}}, i32 0, i32 1
// CHECK: store i32 2, i32*
// CHECK: call i32 @"_ZZ1gvENK3$_1clEv"(
// CHECK-LABEL: define internal i32 @"_ZZ1gvENK3$_1clEv"(
// CHECK: getelementptr inbounds {{.*}}, i32 0, i32 0
// CHECK: load i32, i32*
// CHECK: getelementptr inbounds {{.*}}, i32 0, i32 1
// CHECK: load i32, i32*
// CHECK: add nsw i32
// CHECK-LABEL: define void @_Z18init_capture_dtorsv
void init_capture_dtors() {
// Ensure that init-captures are not treated as separate full-expressions.
struct HasDtor { ~HasDtor() {} };
void some_function_call();
void other_function_call();
// CHECK: call {{.*}}some_function_call
// CHECK: call {{.*}}HasDtorD
([x = (HasDtor(), 0)]{}, some_function_call());
// CHECK: call {{.*}}other_function_call
other_function_call();
}
int h(int a) {
// CHECK-LABEL: define i32 @_Z1hi(
// CHECK: %[[A_ADDR:.*]] = alloca i32,
// CHECK: %[[OUTER:.*]] = alloca
// CHECK: store i32 {{.*}}, i32* %[[A_ADDR]],
//
// Initialize init-capture 'b(a)' by reference.
// CHECK: getelementptr inbounds {{.*}}, {{.*}}* %[[OUTER]], i32 0, i32 0
// CHECK: store i32* %[[A_ADDR]], i32** {{.*}},
//
// Initialize init-capture 'c(a)' by copy.
// CHECK: getelementptr inbounds {{.*}}, {{.*}}* %[[OUTER]], i32 0, i32 1
// CHECK: load i32, i32* %[[A_ADDR]],
// CHECK: store i32
//
// CHECK: call i32 @"_ZZ1hiENK3$_2clEv"({{.*}}* %[[OUTER]])
return [&b(a), c(a)] {
// CHECK-LABEL: define internal i32 @"_ZZ1hiENK3$_2clEv"(
// CHECK: %[[OUTER_ADDR:.*]] = alloca
// CHECK: %[[INNER:.*]] = alloca
// CHECK: store {{.*}}, {{.*}}** %[[OUTER_ADDR]],
//
// Capture outer 'c' by reference.
// CHECK: %[[OUTER:.*]] = load {{.*}}*, {{.*}}** %[[OUTER_ADDR]]
// CHECK: getelementptr inbounds {{.*}}, {{.*}}* %[[INNER]], i32 0, i32 0
// CHECK-NEXT: getelementptr inbounds {{.*}}, {{.*}}* %[[OUTER]], i32 0, i32 1
// CHECK-NEXT: store i32* %
//
// Capture outer 'b' by copy.
// CHECK: getelementptr inbounds {{.*}}, {{.*}}* %[[INNER]], i32 0, i32 1
// CHECK-NEXT: getelementptr inbounds {{.*}}, {{.*}}* %[[OUTER]], i32 0, i32 0
// CHECK-NEXT: load i32*, i32** %
// CHECK-NEXT: load i32, i32* %
// CHECK-NEXT: store i32
//
// CHECK: call i32 @"_ZZZ1hiENK3$_2clEvENKUlvE_clEv"({{.*}}* %[[INNER]])
return [=, &c] {
// CHECK-LABEL: define internal void @"_ZZ1fvEN3$_0D2Ev"(
// CHECK: call void @_ZN1SD1Ev(
// CHECK-LABEL: define internal i32 @"_ZZZ1hiENK3$_2clEvENKUlvE_clEv"(
// CHECK: %[[INNER_ADDR:.*]] = alloca
// CHECK: store {{.*}}, {{.*}}** %[[INNER_ADDR]],
// CHECK: %[[INNER:.*]] = load {{.*}}*, {{.*}}** %[[INNER_ADDR]]
//
// Load capture of 'b'
// CHECK: getelementptr inbounds {{.*}}, {{.*}}* %[[INNER]], i32 0, i32 1
// CHECK: load i32, i32* %
//
// Load capture of 'c'
// CHECK: getelementptr inbounds {{.*}}, {{.*}}* %[[INNER]], i32 0, i32 0
// CHECK: load i32*, i32** %
// CHECK: load i32, i32* %
//
// CHECK: add nsw i32
return b + c;
} ();
} ();
}
// Ensure we can emit code for init-captures in global lambdas too.
auto global_lambda = [a = 0] () mutable { return ++a; };
int get_incremented() { return global_lambda(); }
|