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Fix propagation of basic block flags for inlinee return expressions. - #37840
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erozenfeld
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Jun 13, 2020
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No diffs in x64 pmi framewors and benchmarks. |
erozenfeld
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Jun 13, 2020
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@dotnet/jit-contrib @AndyAyersMS PTAL |
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I owe you an apology -- when I looked at your first fix for this I thought to ask if you handled the ret expr tunneling, but didn't. Sorry about that.
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Nit: I'd place this field first to minimize the amount of padding we might end up with here.
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f0128d0Compareblock flags from inlinee return expressions. The assumption there was that `fgUpdateInlineReturnExpressionPlaceHolder` is the only place where `GT_RET_EXPR`'s are replaced with the actual nodes from inlinees. That assumption was incorrect and this change fixes the remaining places. Fixesdotnet#37574.
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This is a fllow-up to dotnet#37335 and dotnet#37840. When an inline fails we replace `GT_RET_EXPR`with the original `GT_CALL` node. `GT_RET_EXPR`may end up in a basic block other than the original `GT_CALL` so we need to propagate basic block flags. Fixesdotnet#36588.
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#37335 introduced a new more precise way of propagating basic
block flags from inlinee return expressions. The assumption there
was that
fgUpdateInlineReturnExpressionPlaceHolderis the onlyplace where
GT_RET_EXPR's are replaced with the actual nodesfrom inlinees. That assumption was incorrect and this change fixes
the remaining places.
Fixes#37574.