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Duplicate emit of expressions on negation would incorrectly compile n…
…egated macros.
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Original file line number | Diff line number | Diff line change |
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// #target: macos-x64 | ||
module test; | ||
struct Foo | ||
{ | ||
int hello; | ||
int bar; | ||
} | ||
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macro usz @offsetof($Type) { | ||
$Type* x; | ||
return x.bar; | ||
} | ||
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fn void main(String[] argv) | ||
{ | ||
Foo x; | ||
(Foo*)((void*)&x - @offsetof(Foo)); | ||
} | ||
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/* #expect: test.ll | ||
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entry: | ||
store i32 0, ptr %x, align 4 | ||
%ptradd1 = getelementptr inbounds i8, ptr %x, i64 4 | ||
store i32 0, ptr %ptradd1, align 4 | ||
store ptr null, ptr %x2, align 8 | ||
%2 = load ptr, ptr %x2, align 8 | ||
%ptradd3 = getelementptr inbounds i8, ptr %2, i64 4 | ||
%3 = load i32, ptr %ptradd3, align 4 | ||
%sext = sext i32 %3 to i64 | ||
%neg = sub i64 0, %sext | ||
%ptradd_any = getelementptr i8, ptr %x, i64 %neg | ||
ret void | ||
} |
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