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38 lines
646 B
Plaintext
38 lines
646 B
Plaintext
// #target: macos-x64
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// #safe: yes
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module test;
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struct Foo
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{
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int a;
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float b;
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}
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macro @offset_buggy($Type, $member)
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{
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$Type *t = null;
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return (usz)(uptr)&t.$eval($member);
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}
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fn int main()
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{
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usz a = @offset_buggy(Foo, "b");
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return (int)a;
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}
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/* #expect: test.ll
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define i32 @main() #0 {
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entry:
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%a = alloca i64, align 8
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%t = alloca ptr, align 8
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store ptr null, ptr %t, align 8
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%0 = load ptr, ptr %t, align 8
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%ptradd = getelementptr inbounds i8, ptr %0, i64 4
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%ptrxi = ptrtoint ptr %ptradd to i64
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store i64 %ptrxi, ptr %a, align 8
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%1 = load i64, ptr %a, align 8
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%trunc = trunc i64 %1 to i32
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ret i32 %trunc
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}
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