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Add new SIL instruction for calling dynamically_replaceable funtions

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%0 = dynamic_function_ref @dynamically_replaceable_function
  apply %0()
  Calls a [dynamically_replaceable] function.

  %0 = prev_dynamic_function_ref @dynamic_replacement_function
  apply %0
  Calls the previous implementation that dynamic_replacement_function
  replaced.
This commit is contained in:
Arnold Schwaighofer
2018-11-02 14:54:55 -07:00
parent ebbe3aed1c
commit 7e32c68e1d
37 changed files with 422 additions and 64 deletions
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10
lib/SIL/Linker.cpp
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@@ -173,6 +173,16 @@ void SILLinkerVisitor::visitFunctionRefInst(FunctionRefInst *FRI) {
maybeAddFunctionToWorklist(FRI->getReferencedFunction());
}
void SILLinkerVisitor::visitDynamicFunctionRefInst(
DynamicFunctionRefInst *FRI) {
maybeAddFunctionToWorklist(FRI->getReferencedFunction());
}
void SILLinkerVisitor::visitPreviousDynamicFunctionRefInst(
PreviousDynamicFunctionRefInst *FRI) {
maybeAddFunctionToWorklist(FRI->getReferencedFunction());
}
// Eagerly visiting all used conformances leads to a large blowup
// in the amount of SIL we read in. For optimization purposes we can defer
// reading in most conformances until we need them for devirtualization.