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94473f4db6
Generate nuw GEPs for struct member accesses, as inbounds + non-negative implies nuw. Regression tests are updated using update scripts where possible, and by find + replace where not.
133 lines
7.2 KiB
C++
133 lines
7.2 KiB
C++
// RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++11 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-STATIC-BL
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++11 -emit-llvm -o - %s -Dconstexpr= | FileCheck %s --check-prefix=CHECK-DYNAMIC-BL
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++11 -emit-llvm -o - %s -DUSE_END | FileCheck %s --check-prefix=CHECK-STATIC-BE
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++11 -emit-llvm -o - %s -DUSE_END -Dconstexpr= | FileCheck %s --check-prefix=CHECK-DYNAMIC-BE
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namespace std {
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typedef decltype(sizeof(int)) size_t;
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template <class _E>
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class initializer_list
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{
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const _E* __begin_;
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#ifdef USE_END
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const _E* __end_;
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#else
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size_t __size_;
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#endif
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constexpr initializer_list(const _E* __b, size_t __s)
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: __begin_(__b),
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#ifdef USE_END
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__end_(__b + __s)
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#else
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__size_(__s)
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#endif
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{}
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public:
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typedef _E value_type;
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typedef const _E& reference;
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typedef const _E& const_reference;
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typedef size_t size_type;
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typedef const _E* iterator;
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typedef const _E* const_iterator;
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#ifdef USE_END
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constexpr initializer_list() : __begin_(nullptr), __end_(nullptr) {}
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size_t size() const {return __end_ - __begin_;}
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const _E* begin() const {return __begin_;}
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const _E* end() const {return __end_;}
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#else
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constexpr initializer_list() : __begin_(nullptr), __size_(0) {}
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size_t size() const {return __size_;}
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const _E* begin() const {return __begin_;}
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const _E* end() const {return __begin_ + __size_;}
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#endif
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};
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}
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constexpr int a = 2, b = 4, c = 6;
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std::initializer_list<std::initializer_list<int>> nested = {
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{1, a}, {3, b}, {5, c}
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};
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// CHECK-STATIC-BL: @_ZGR6nested0_ = internal constant [2 x i32] [i32 1, i32 2], align 4
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// CHECK-STATIC-BL: @_ZGR6nested1_ = internal constant [2 x i32] [i32 3, i32 4], align 4
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// CHECK-STATIC-BL: @_ZGR6nested2_ = internal constant [2 x i32] [i32 5, i32 6], align 4
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// CHECK-STATIC-BL: @_ZGR6nested_ = internal constant [3 x {{.*}}] [
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// CHECK-STATIC-BL: {{.*}} { ptr @_ZGR6nested0_, i64 2 },
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// CHECK-STATIC-BL: {{.*}} { ptr @_ZGR6nested1_, i64 2 },
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// CHECK-STATIC-BL: {{.*}} { ptr @_ZGR6nested2_, i64 2 }
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// CHECK-STATIC-BL: ], align 8
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// CHECK-STATIC-BL: @nested ={{.*}} global {{.*}} { {{.*}} @_ZGR6nested_, i64 3 }, align 8
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// CHECK-DYNAMIC-BL: @nested ={{.*}} global
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// CHECK-DYNAMIC-BL: @_ZGR6nested_ = internal global [3 x
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// CHECK-DYNAMIC-BL: @_ZGR6nested0_ = internal global [2 x i32] zeroinitializer
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// CHECK-DYNAMIC-BL: @_ZGR6nested1_ = internal global [2 x i32] zeroinitializer
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// CHECK-DYNAMIC-BL: @_ZGR6nested2_ = internal global [2 x i32] zeroinitializer
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// CHECK-DYNAMIC-BL: store i32 1, ptr @_ZGR6nested0_
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// CHECK-DYNAMIC-BL: store i32 {{.*}}, ptr getelementptr inbounds (i32, ptr @_ZGR6nested0_, i64 1)
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// CHECK-DYNAMIC-BL: store ptr @_ZGR6nested0_,
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// CHECK-DYNAMIC-BL: ptr @_ZGR6nested_, align 8
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// CHECK-DYNAMIC-BL: store i64 2, ptr getelementptr inbounds nuw ({{.*}}, ptr @_ZGR6nested_, i32 0, i32 1), align 8
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// CHECK-DYNAMIC-BL: store i32 3, ptr @_ZGR6nested1_
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// CHECK-DYNAMIC-BL: store i32 {{.*}}, ptr getelementptr inbounds (i32, ptr @_ZGR6nested1_, i64 1)
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// CHECK-DYNAMIC-BL: store ptr @_ZGR6nested1_,
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// CHECK-DYNAMIC-BL: ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 1), align 8
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// CHECK-DYNAMIC-BL: store i64 2, ptr getelementptr inbounds nuw ({{.*}}, ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 1), i32 0, i32 1), align 8
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// CHECK-DYNAMIC-BL: store i32 5, ptr @_ZGR6nested2_
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// CHECK-DYNAMIC-BL: store i32 {{.*}}, ptr getelementptr inbounds (i32, ptr @_ZGR6nested2_, i64 1)
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// CHECK-DYNAMIC-BL: store ptr @_ZGR6nested2_,
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// CHECK-DYNAMIC-BL: ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 2), align 8
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// CHECK-DYNAMIC-BL: store i64 2, ptr getelementptr inbounds nuw ({{.*}}, ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 2), i32 0, i32 1), align 8
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// CHECK-DYNAMIC-BL: store ptr @_ZGR6nested_,
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// CHECK-DYNAMIC-BL: ptr @nested, align 8
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// CHECK-DYNAMIC-BL: store i64 3, ptr getelementptr inbounds nuw ({{.*}}, ptr @nested, i32 0, i32 1), align 8
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// CHECK-STATIC-BE: @_ZGR6nested0_ = internal constant [2 x i32] [i32 1, i32 2], align 4
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// CHECK-STATIC-BE: @_ZGR6nested1_ = internal constant [2 x i32] [i32 3, i32 4], align 4
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// CHECK-STATIC-BE: @_ZGR6nested2_ = internal constant [2 x i32] [i32 5, i32 6], align 4
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// CHECK-STATIC-BE: @_ZGR6nested_ = internal constant [3 x {{.*}}] [
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// CHECK-STATIC-BE: {{.*}} { ptr @_ZGR6nested0_,
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// CHECK-STATIC-BE: ptr getelementptr (i8, ptr @_ZGR6nested0_, i64 8) }
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// CHECK-STATIC-BE: {{.*}} { ptr @_ZGR6nested1_,
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// CHECK-STATIC-BE: ptr getelementptr (i8, ptr @_ZGR6nested1_, i64 8) }
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// CHECK-STATIC-BE: {{.*}} { ptr @_ZGR6nested2_,
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// CHECK-STATIC-BE: ptr getelementptr (i8, ptr @_ZGR6nested2_, i64 8) }
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// CHECK-STATIC-BE: ], align 8
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// CHECK-STATIC-BE: @nested ={{.*}} global {{.*}} { ptr @_ZGR6nested_,
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// CHECK-STATIC-BE: {{.*}} getelementptr (i8, ptr @_ZGR6nested_, i64 48) }
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// CHECK-DYNAMIC-BE: @nested ={{.*}} global
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// CHECK-DYNAMIC-BE: @_ZGR6nested_ = internal global [3 x
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// CHECK-DYNAMIC-BE: @_ZGR6nested0_ = internal global [2 x i32] zeroinitializer
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// CHECK-DYNAMIC-BE: @_ZGR6nested1_ = internal global [2 x i32] zeroinitializer
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// CHECK-DYNAMIC-BE: @_ZGR6nested2_ = internal global [2 x i32] zeroinitializer
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// CHECK-DYNAMIC-BE: store i32 1, ptr @_ZGR6nested0_
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// CHECK-DYNAMIC-BE: store i32 {{.*}}, ptr getelementptr inbounds (i32, ptr @_ZGR6nested0_, i64 1)
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// CHECK-DYNAMIC-BE: store ptr @_ZGR6nested0_,
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// CHECK-DYNAMIC-BE: ptr @_ZGR6nested_, align 8
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// CHECK-DYNAMIC-BE: store ptr getelementptr inbounds ([2 x i32], ptr @_ZGR6nested0_, i64 0, i64 2),
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// CHECK-DYNAMIC-BE: ptr getelementptr inbounds nuw ({{.*}}, ptr @_ZGR6nested_, i32 0, i32 1), align 8
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// CHECK-DYNAMIC-BE: store i32 3, ptr @_ZGR6nested1_
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// CHECK-DYNAMIC-BE: store i32 {{.*}}, ptr getelementptr inbounds (i32, ptr @_ZGR6nested1_, i64 1)
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// CHECK-DYNAMIC-BE: store ptr @_ZGR6nested1_,
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// CHECK-DYNAMIC-BE: ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 1), align 8
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// CHECK-DYNAMIC-BE: store ptr getelementptr inbounds ([2 x i32], ptr @_ZGR6nested1_, i64 0, i64 2),
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// CHECK-DYNAMIC-BE: ptr getelementptr inbounds nuw ({{.*}}, ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 1), i32 0, i32 1), align 8
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// CHECK-DYNAMIC-BE: store i32 5, ptr @_ZGR6nested2_
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// CHECK-DYNAMIC-BE: store i32 {{.*}}, ptr getelementptr inbounds (i32, ptr @_ZGR6nested2_, i64 1)
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// CHECK-DYNAMIC-BE: store ptr @_ZGR6nested2_,
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// CHECK-DYNAMIC-BE: ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 2), align 8
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// CHECK-DYNAMIC-BE: store ptr getelementptr inbounds ([2 x i32], ptr @_ZGR6nested2_, i64 0, i64 2),
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// CHECK-DYNAMIC-BE: ptr getelementptr inbounds nuw ({{.*}}, ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 2), i32 0, i32 1), align 8
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// CHECK-DYNAMIC-BE: store ptr @_ZGR6nested_,
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// CHECK-DYNAMIC-BE: ptr @nested, align 8
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// CHECK-DYNAMIC-BE: store ptr getelementptr inbounds ([3 x {{.*}}], ptr @_ZGR6nested_, i64 0, i64 3),
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// CHECK-DYNAMIC-BE: ptr getelementptr inbounds nuw ({{.*}}, ptr @nested, i32 0, i32 1), align 8
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