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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.
61 lines
1.4 KiB
C++
61 lines
1.4 KiB
C++
// RUN: %clang_cc1 -triple=x86_64-unknown-linux -emit-llvm %s -o - | FileCheck \
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// RUN: -check-prefix=CHECK-1 %s
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// RUN: %clang_cc1 -triple=x86_64-unknown-linux -emit-llvm %s -o - | FileCheck \
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// RUN: -check-prefix=CHECK-2 %s
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// RUN: %clang_cc1 -triple=x86_64-unknown-linux -emit-llvm %s -o - | FileCheck \
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// RUN: -check-prefix=CHECK-3 %s
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// CHECK-1: [[FOO:%.+]] = type { float }
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struct foo {
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float val;
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};
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template <typename T> struct bar : T {
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};
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struct baz : bar<foo> {
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// CHECK-1: define{{.*}} float @_ZN3baz3getEv
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// CHECK-1: {{%.+}} = getelementptr inbounds nuw [[FOO]], ptr {{%.+}}, i32 0, i32 0
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float get() {
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return val;
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}
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};
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int qux() {
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auto f = baz{};
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return f.get();
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}
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// CHECK-2: [[F:%.+]] = type { ptr }
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struct f {
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void *g;
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};
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template <typename j> struct k : j {
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// CHECK-2: define{{.*}} void @_ZN1kI1fE1lEv
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// CHECK-2: {{%.+}} = getelementptr inbounds nuw [[F]], ptr {{%.+}}, i32 0, i32 0
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virtual void l(){ (void)f::g; }
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};
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k<f> q;
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// CHECK-3: [[BASE:%.+]] = type { i32 }
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class Base {
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protected:
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int member;
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};
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template <typename Parent>
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struct Subclass : public Parent {
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// CHECK-3: define{{.*}} i32 @_ZN8SubclassI4BaseE4funcEv
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// CHECK-3: {{%.+}} = getelementptr inbounds nuw [[BASE]], ptr {{%.+}}, i32 0, i32 0
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int func() { return Base::member; }
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};
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using Impl = Subclass<Base>;
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int use() {
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Impl i;
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return i.func();
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}
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