If we have multiple definitions of the same entity from different modules, we nominate the first definition which we see as being the canonical definition. If we load a declaration from a different definition and we can't find a corresponding declaration in the canonical definition, issue a diagnostic. This is insufficient to prevent things from going horribly wrong in all cases -- we might be in the middle of emitting IR for a function when we trigger some deserialization and discover that it refers to an incoherent piece of the AST, by which point it's probably too late to bail out -- but we'll at least produce a diagnostic. llvm-svn: 192950
14 lines
133 B
C
14 lines
133 B
C
extern struct Y {
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int n;
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float f;
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} y1;
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enum E { e1 };
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struct X {
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int n;
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} x1;
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int f() {
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return y1.n + e1 + y1.f + x1.n;
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}
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