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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.
32 lines
1.1 KiB
C++
32 lines
1.1 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm --std=c++17 %s -o - | FileCheck %s
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struct stream {
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friend const stream &operator<<(const stream &, const float &);
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};
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void foo() {
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constexpr float f_zero = 0.0f;
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constexpr float f_one = 1.0f;
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constexpr float f_two = 2.0f;
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stream s;
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[=]() {
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s << f_zero << f_one << f_two;
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}();
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}
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// CHECK: define{{.*}} void @_Z3foov
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// CHECK: getelementptr inbounds nuw %{{.+}}, ptr %{{.+}}, i32 0, i32 1
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// CHECK-NEXT: store float 0.000
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// CHECK-NEXT: getelementptr inbounds nuw %{{.+}}, ptr %{{.+}}, i32 0, i32 2
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// CHECK-NEXT: store float 1.000
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// CHECK-NEXT: getelementptr inbounds nuw %{{.+}}, ptr %{{.+}}, i32 0, i32 3
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// CHECK-NEXT: store float 2.000
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// The lambda body. Reverse iteration when the captures aren't deterministic
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// causes these to be laid out differently in the lambda.
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// CHECK: define internal void
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// CHECK: getelementptr inbounds nuw %{{.+}}, ptr %{{.+}}, i32 0, i32 1
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// CHECK: getelementptr inbounds nuw %{{.+}}, ptr %{{.+}}, i32 0, i32 2
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// CHECK: getelementptr inbounds nuw %{{.+}}, ptr %{{.+}}, i32 0, i32 3
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