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5518a9d767
Previously committed as 9e08e51a20d0d2b1c5724bb17e969d036fced4cd, and reverted because a dependency commit was reverted, then committed again as 4b574008aef5a7235c1f894ab065fe300d26e786 and reverted again because "dependency commit" 5a391d38ac6c561ba908334d427f26124ed9132e was reverted. But it doesn't seem that 5a391d38ac6c was a real dependency for this. This commit incorporates 4b574008aef5a7235c1f894ab065fe300d26e786 and 18e093faf726d15f210ab4917142beec51848258 by Richard Smith (@zygoloid), with some minor fixes, most notably: - `UncommonValue` renamed to `StructuralValue` - `VK_PRValue` instead of `VK_RValue` as default kind in lvalue and member pointer handling branch in `BuildExpressionFromNonTypeTemplateArgumentValue`; - handling of `StructuralValue` in `IsTypeDeclaredInsideVisitor`; - filling in `SugaredConverted` along with `CanonicalConverted` parameter in `Sema::CheckTemplateArgument`; - minor cleanup in `TemplateInstantiator::transformNonTypeTemplateParmRef`; - `TemplateArgument` constructors refactored; - `ODRHash` calculation for `UncommonValue`; - USR generation for `UncommonValue`; - more correct MS compatibility mangling algorithm (tested on MSVC ver. 19.35; toolset ver. 143); - IR emitting fixed on using a subobject as a template argument when the corresponding template parameter is used in an lvalue context; - `noundef` attribute and opaque pointers in `template-arguments` test; - analysis for C++17 mode is turned off for templates in `warn-bool-conversion` test; in C++17 and C++20 mode, array reference used as a template argument of pointer type produces template argument of UncommonValue type, and `BuildExpressionFromNonTypeTemplateArgumentValue` makes `OpaqueValueExpr` for it, and `DiagnoseAlwaysNonNullPointer` cannot see through it; despite of "These cases should not warn" comment, I'm not sure about correct behavior; I'd expect a suggestion to replace `if` by `if constexpr`; - `temp.arg.nontype/p1.cpp` and `dr18xx.cpp` tests fixed.
114 lines
4.5 KiB
C++
114 lines
4.5 KiB
C++
// RUN: %clang_cc1 -std=c++20 %s -emit-llvm -o - -triple x86_64-linux -DCONSTEXPR= | FileCheck %s
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// RUN: %clang_cc1 -std=c++20 %s -emit-llvm -o - -triple x86_64-linux -DCONSTEXPR=constexpr | FileCheck %s --check-prefix=CONST
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template<typename T> CONSTEXPR T id(T v) { return v; }
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template<auto V> auto value = id(V);
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// CHECK: call {{.*}} @_Z2idIiET_S0_(i32 noundef 1)
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// CONST: @_Z5valueILi1EE = weak_odr {{.*}} i32 1,
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template int value<1>;
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// CHECK: call {{.*}} @_Z2idIyET_S0_(i64 noundef -1)
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// CONST: @_Z5valueILy18446744073709551615EE = weak_odr {{.*}} i64 -1,
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template unsigned long long value<-1ULL>;
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// CHECK: call {{.*}} @_Z2idIfET_S0_(float noundef 1.000000e+00)
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// CONST: @_Z5valueILf3f800000EE = weak_odr {{.*}} float 1.000000e+00,
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template float value<1.0f>;
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// CHECK: call {{.*}} @_Z2idIdET_S0_(double noundef 1.000000e+00)
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// CONST: @_Z5valueILd3ff0000000000000EE = weak_odr {{.*}} double 1.000000e+00,
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template double value<1.0>;
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enum E{ E1, E2};
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// CHECK: call {{.*}} @_Z2idI1EET_S1_(i32 noundef 1)
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// CONST: @_Z5valueIL1E1EE = weak_odr {{.*}} i32 1,
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template E value<E2>;
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int n;
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// CHECK: call {{.*}} @_Z2idIPiET_S1_(ptr noundef @n)
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// CONST: @_Z5valueIXadL_Z1nEEE = weak_odr {{.*}} ptr @n,
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template int *value<&n>;
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struct A { int a[3]; } a;
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// CHECK: call {{.*}} @_Z2idIPiET_S1_(ptr noundef @a)
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// CONST: @_Z5valueIXadsoiL_Z1aEEEE = weak_odr {{.*}} ptr @a,
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template int *value<&a.a[0]>;
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// CHECK: call {{.*}} @_Z2idIPiET_S1_(ptr noundef getelementptr (i8, ptr @a, i64 4))
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// CONST: @_Z5valueIXadsoiL_Z1aE4EEE = weak_odr {{.*}} ptr getelementptr (i8, ptr @a, i64 4),
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template int *value<&a.a[1]>;
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// CHECK: call {{.*}} @_Z2idIPiET_S1_(ptr noundef getelementptr (i8, ptr @a, i64 8))
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// CONST: @_Z5valueIXadsoiL_Z1aE8EEE = weak_odr {{.*}} ptr getelementptr (i8, ptr @a, i64 8),
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template int *value<&a.a[2]>;
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// CHECK: call {{.*}} @_Z2idIPiET_S1_(ptr noundef getelementptr (i8, ptr @a, i64 12))
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// CONST: @_Z5valueIXadsoiL_Z1aE12pEEE = weak_odr {{.*}} ptr getelementptr (i8, ptr @a, i64 12),
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template int *value<&a.a[3]>;
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union U {
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int x, y;
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union {
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int x, y;
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} internal;
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} u;
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// CHECK: call {{.*}} @_Z2idIPiET_S1_(ptr noundef @u)
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// CONST: @_Z5valueIXadsoiL_Z1uE_EEE = weak_odr {{.*}} ptr @u,
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template int *value<&u.x>;
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// CHECK: call {{.*}} @_Z2idIPiET_S1_(ptr noundef @u)
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// CONST: @_Z5valueIXadsoiL_Z1uE_0EEE = weak_odr {{.*}} ptr @u,
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template int *value<&u.y>;
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// CHECK: call {{.*}} @_Z2idIPiET_S1_(ptr noundef @u)
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// CONST: @_Z5valueIXadsoiL_Z1uE_1_0EEE = weak_odr {{.*}} ptr @u,
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template int *value<&u.internal.y>;
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struct B { int x, y; };
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// CHECK: call {{.*}} @_Z2idIM1BiET_S2_(i64 0)
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// CONST: @_Z5valueIXadL_ZN1B1xEEEE = weak_odr {{.*}} i64 0,
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template int B::*value<&B::x>;
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// CHECK: call {{.*}} @_Z2idIM1BiET_S2_(i64 4)
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// CONST: @_Z5valueIXadL_ZN1B1yEEEE = weak_odr {{.*}} i64 4,
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template int B::*value<&B::y>;
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struct C : A, B { int z; };
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// CHECK: call {{.*}} @_Z2idIM1CiET_S2_(i64 12)
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// CONST: @_Z5valueIXmcM1CiadL_ZN1B1xEE12EEE = weak_odr {{.*}} i64 12,
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template int C::*value<(int C::*)&B::x>;
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// CHECK: call {{.*}} @_Z2idIM1BiET_S2_(i64 8)
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// CONST: @_Z5valueIXmcM1BiadL_ZN1C1zEEn12EEE = weak_odr {{.*}} i64 8,
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template int B::*value<(int B::*)&C::z>;
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// CHECK: store i32 1,
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// CHECK: store i32 2,
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// CHECK: load i64,
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// CHECK: call {{.*}} @_Z2idICiET_S1_(i64 noundef %
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// CONST: @_Z5valueIXtlCiLi1ELi2EEEE = weak_odr {{.*}} { i32, i32 } { i32 1, i32 2 },
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template _Complex int value<1 + 2j>;
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// CHECK: store float 1.000000e+00,
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// CHECK: store float 2.000000e+00,
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// CHECK: load <2 x float>,
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// CHECK: call {{.*}} @_Z2idICfET_S1_(<2 x float> noundef %
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// CONST: @_Z5valueIXtlCfLf3f800000ELf40000000EEEE = weak_odr {{.*}} { float, float } { float 1.000000e+00, float 2.000000e+00 },
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template _Complex float value<1.0f + 2.0fj>;
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using V3i __attribute__((ext_vector_type(3))) = int;
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// CHECK: call {{.*}} @_Z2idIDv3_iET_S1_(<3 x i32> noundef <i32 1, i32 2, i32 3>)
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// CONST: @_Z5valueIXtlDv3_iLi1ELi2ELi3EEEE = weak_odr {{.*}} <3 x i32> <i32 1, i32 2, i32 3>
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template V3i value<V3i{1, 2, 3}>;
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using V3f [[gnu::vector_size(12)]] = float;
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// CHECK: call {{.*}} @_Z2idIDv3_fET_S1_(<3 x float> noundef <float 1.000000e+00, float 2.000000e+00, float 3.000000e+00>)
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// CONST: @_Z5valueIXtlDv3_fLf3f800000ELf40000000ELf40400000EEEE = weak_odr {{.*}} <3 x float> <float 1.000000e+00, float 2.000000e+00, float 3.000000e+00>
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template V3f value<V3f{1, 2, 3}>;
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template <int& i>
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void setByRef() {
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i = 1;
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}
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void callSetByRefWithSubobject() {
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// CHECK: store i32 1, ptr getelementptr (i8, ptr @a, i64 4)
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setByRef<a.a[1]>();
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}
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