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Update guarded devirtualization to handle struct returns #51138

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#51157
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Update guarded devirtualization to handle struct returns#51138
#51157
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AndyAyersMS
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area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI
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6.0.0
@AndyAyersMS

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@AndyAyersMS
AndyAyersMS
opened on Apr 12, 2021

Address this workaround:

runtime/src/coreclr/jit/indirectcalltransformer.cpp

Lines 526 to 543 in 81e867e

// For now, bail on transforming calls that still appear
// to return structs by value as there is deferred work
// needed to fix up the return type.
//
// See for instance fgUpdateInlineReturnExpressionPlaceHolder.
if (origCall->TypeGet() == TYP_STRUCT)
{
JITDUMP("*** %s Bailing on [%06u] -- can't handle by-value struct returns yet\n", Name(),
compiler->dspTreeID(origCall));
ClearFlag();
// For stub calls restore the stub address
if (origCall->IsVirtualStub())
{
origCall->gtStubCallStubAddr = origCall->gtInlineCandidateInfo->stubAddr;
}
return;
}

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area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

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