JIT: Remove GTF_IS_IN_CSE
#104855
Merged
JIT: Remove GTF_IS_IN_CSE
#104855
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This flag is just a convoluted way to pass an argument through to a bunch of methods from inside CSE. That's because CSE tries to reuse `gtExtractSideEffList` even though it needs something more capable that considers CSE defs and CSE uses as well. Remove the flag in favor of an `ignoreCctors` flag in the side effect checking functions; then, additionally add a CSE-specific version of `gtExtractSideEffList` called `optExtractSideEffectsForCSE` which handles side effects and also CSE defs/uses. This does result in a slight amount of duplication, but I think that's beneficial over the convoluted logic before.
ghost
added
the
area-CodeGen-coreclr
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Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch |
jakobbotsch
commented
Jul 13, 2024
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| GenTree* comma = m_compiler->gtNewOperNode(GT_COMMA, TYP_VOID, m_result, node); | ||
| comma->gtFlags |= (m_result->gtFlags | node->gtFlags) & GTF_ALL_EFFECT; |
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gtNewOperNode does the flags propagation already.
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cc @dotnet/jit-contrib PTAL @AndyAyersMS No diffs. Minor TP improvements. |
AndyAyersMS
approved these changes
Jul 15, 2024
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This flag is just a convoluted way to pass an argument through to a bunch of methods from inside CSE. That's because CSE tries to reuse
gtExtractSideEffListeven though it needs something more capable that considers CSE defs and CSE uses as well.Remove the flag in favor of an
ignoreCctorsflag in the side effect checking functions; then, additionally add a CSE-specific version ofgtExtractSideEffListcalledoptExtractSideEffectsForCSEwhich handles side effects and also CSE defs/uses. This does result in a slight amount of duplication, but I think that's beneficial over the convoluted logic before.No diffs are expected.