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.
81 lines
3.7 KiB
Plaintext
81 lines
3.7 KiB
Plaintext
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
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// Basic C++ test for update_cc_test_checks
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// RUN: %clang_cc1 -triple=x86_64-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s
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class Foo {
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int x;
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public:
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explicit Foo(int x);
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~Foo();
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// CHECK-LABEL: @_ZNK3Foo23function_defined_inlineEi(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[THIS_ADDR:%.*]] = alloca ptr, align 8
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// CHECK-NEXT: [[ARG_ADDR:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store ptr [[THIS:%.*]], ptr [[THIS_ADDR]], align 8
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// CHECK-NEXT: store i32 [[ARG:%.*]], ptr [[ARG_ADDR]], align 4
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// CHECK-NEXT: [[THIS1:%.*]] = load ptr, ptr [[THIS_ADDR]], align 8
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// CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[ARG_ADDR]], align 4
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// CHECK-NEXT: [[X:%.*]] = getelementptr inbounds nuw [[CLASS_FOO:%.*]], ptr [[THIS1]], i32 0, i32 0
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// CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[X]], align 4
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// CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[TMP0]], [[TMP1]]
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// CHECK-NEXT: ret i32 [[ADD]]
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//
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inline int function_defined_inline(int arg) const {
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return arg + x;
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}
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inline int function_defined_out_of_line(int arg) const;
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};
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// CHECK-LABEL: @_ZN3FooC1Ei(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[THIS_ADDR:%.*]] = alloca ptr, align 8
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// CHECK-NEXT: [[X_ADDR:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store ptr [[THIS:%.*]], ptr [[THIS_ADDR]], align 8
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// CHECK-NEXT: store i32 [[X:%.*]], ptr [[X_ADDR]], align 4
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// CHECK-NEXT: [[THIS1:%.*]] = load ptr, ptr [[THIS_ADDR]], align 8
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// CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[X_ADDR]], align 4
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// CHECK-NEXT: call void @_ZN3FooC2Ei(ptr noundef nonnull align 4 dereferenceable(4) [[THIS1]], i32 noundef [[TMP0]])
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// CHECK-NEXT: ret void
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//
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Foo::Foo(int x) : x(x) {}
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// CHECK-LABEL: @_ZN3FooD1Ev(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[THIS_ADDR:%.*]] = alloca ptr, align 8
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// CHECK-NEXT: store ptr [[THIS:%.*]], ptr [[THIS_ADDR]], align 8
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// CHECK-NEXT: [[THIS1:%.*]] = load ptr, ptr [[THIS_ADDR]], align 8
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// CHECK-NEXT: call void @_ZN3FooD2Ev(ptr noundef nonnull align 4 dereferenceable(4) [[THIS1]]) #[[ATTR2:[0-9]+]]
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// CHECK-NEXT: ret void
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//
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Foo::~Foo() {}
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// CHECK-LABEL: @_ZNK3Foo28function_defined_out_of_lineEi(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[THIS_ADDR:%.*]] = alloca ptr, align 8
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// CHECK-NEXT: [[ARG_ADDR:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store ptr [[THIS:%.*]], ptr [[THIS_ADDR]], align 8
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// CHECK-NEXT: store i32 [[ARG:%.*]], ptr [[ARG_ADDR]], align 4
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// CHECK-NEXT: [[THIS1:%.*]] = load ptr, ptr [[THIS_ADDR]], align 8
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// CHECK-NEXT: [[X:%.*]] = getelementptr inbounds nuw [[CLASS_FOO:%.*]], ptr [[THIS1]], i32 0, i32 0
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// CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[X]], align 4
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// CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[ARG_ADDR]], align 4
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// CHECK-NEXT: [[SUB:%.*]] = sub nsw i32 [[TMP0]], [[TMP1]]
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// CHECK-NEXT: ret i32 [[SUB]]
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//
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int Foo::function_defined_out_of_line(int arg) const { return x - arg; }
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// Call the inline methods to ensure the LLVM IR is generated:
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// CHECK-LABEL: @main(
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[F:%.*]] = alloca [[CLASS_FOO:%.*]], align 4
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// CHECK-NEXT: call void @_ZN3FooC1Ei(ptr noundef nonnull align 4 dereferenceable(4) [[F]], i32 noundef 1)
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// CHECK-NEXT: [[CALL:%.*]] = call noundef i32 @_ZNK3Foo23function_defined_inlineEi(ptr noundef nonnull align 4 dereferenceable(4) [[F]], i32 noundef 2)
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// CHECK-NEXT: [[CALL1:%.*]] = call noundef i32 @_ZNK3Foo28function_defined_out_of_lineEi(ptr noundef nonnull align 4 dereferenceable(4) [[F]], i32 noundef 3)
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// CHECK-NEXT: call void @_ZN3FooD1Ev(ptr noundef nonnull align 4 dereferenceable(4) [[F]]) #[[ATTR2]]
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// CHECK-NEXT: ret i32 0
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//
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int main() {
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Foo f(1);
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f.function_defined_inline(2);
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f.function_defined_out_of_line(3);
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}
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