e6cdfb75ac
Corrected various spelling mistakes such as 'occurred', 'receiver', 'initialized', 'length', and others in comments, variable names, function names, and documentation throughout the project. These changes improve code readability and maintain consistency in naming and documentation. Co-authored-by: Louis Dionne <ldionne.2@gmail.com>
48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
// RUN: %clang_cc1 -triple x86_64-windows-gnu -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple powerpc64le-windows-gnu -emit-llvm -o - %s | FileCheck %s
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// An empty struct is handled as a struct with a dummy i8, on all targets.
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// Most targets treat an empty struct return value as essentially void - but
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// some don't. (Currently, at least x86_64-windows-* and powerpc64le-* don't
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// treat it as void.)
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//
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// When initializing a struct with such a no_unique_address member, make sure we
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// don't write the dummy i8 into the struct where there's no space allocated for
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// it.
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//
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// This can only be tested with targets that don't treat empty struct returns as
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// void.
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struct S {};
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S f();
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struct Z {
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int x;
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[[no_unique_address]] S y;
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Z();
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};
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Z::Z() : x(111), y(f()) {}
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// CHECK: define {{.*}} @_ZN1ZC2Ev
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// CHECK: %call = call i8 @_Z1fv()
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// CHECK-NEXT: ret void
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// Check that the constructor for an empty member gets called with the right
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// 'this' pointer.
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struct S2 {
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S2();
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};
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struct Z2 {
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int x;
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[[no_unique_address]] S2 y;
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Z2();
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};
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Z2::Z2() : x(111) {}
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// CHECK: define {{.*}} @_ZN2Z2C2Ev(ptr {{.*}} %this)
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// CHECK: %this.addr = alloca ptr
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// CHECK: store ptr %this, ptr %this.addr
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// CHECK: %this1 = load ptr, ptr %this.addr
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// CHECK: call void @_ZN2S2C1Ev(ptr {{.*}} %this1)
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