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[PoC][DO_NOT_MERGE] Add llc option to switch on and off hasMultipleConditionRegisters feature from a target.
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Authored by PaoloS on Jul 8 2021, 3:46 AM.
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Summary

This patch is currently for display only.
The aim of the patch is to make it easier to test the effectiveness of the feature hasMultipleConditionRegisters in a target as such feature is set statically in the target lowering info and influences optimization in several places.
This patch adds the llc option -has-multiple-condition-registers=0/1.
It doesn't change the codegen behaviour.

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Event Timeline

PaoloS created this revision.Jul 8 2021, 3:46 AM
PaoloS requested review of this revision.Jul 8 2021, 3:46 AM
Herald added a project: Restricted Project. · View Herald TranscriptJul 8 2021, 3:46 AM
PaoloS updated this revision to Diff 357207.Jul 8 2021, 6:27 AM

Fixed the test to reflect the effects of the hasMultipleConditionRegisters on the lowering of select and the sinking of icmp.