cda4a0e918
The assertion fails when the expression causing the this pointer to be captured is part of a constexpr if statement's branch and the branch gets discarded when the enclosing method is instantiated. Note that the test case is added to CodeGen instead of Sema since the translation unit has to be free of errors in order for the assertion to be checked. Differential Revision: https://reviews.llvm.org/D144016
52 lines
1.0 KiB
C++
52 lines
1.0 KiB
C++
// RUN: %clang_cc1 -std=c++1z %s -emit-llvm -fblocks -triple x86_64-apple-darwin10 -o - | FileCheck %s --implicit-check-not=should_not_be_used
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void should_be_used_1();
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void should_be_used_2();
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void should_be_used_3();
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void should_not_be_used();
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struct A {
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constexpr explicit operator bool() const {
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return true;
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}
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};
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void f() {
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if constexpr (false)
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should_not_be_used();
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else
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should_be_used_1();
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if constexpr (true || ({ label: false; }))
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should_be_used_2();
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else {
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goto foo;
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foo: should_not_be_used();
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}
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if constexpr (A())
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should_be_used_3();
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else
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should_not_be_used();
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}
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// CHECK: should_be_used_1
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// CHECK: should_be_used_2
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// CHECK: should_be_used_3
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namespace BlockThisCapture {
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void foo();
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struct S {
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template <bool b>
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void m() {
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^{ if constexpr(b) (void)this; else foo(); }();
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}
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};
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void test() {
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S().m<false>();
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}
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}
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// CHECK-LABEL: define internal void @___ZN16BlockThisCapture1S1mILb0EEEvv_block_invoke(
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// CHECK: call void @_ZN16BlockThisCapture3fooEv(
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