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JIT: Fix alignment insertion assuming only emitForceNewIG can create new IGs #73518

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Issue I noticed over in #73365.
emitNewInstrAlign can create new IGs for other reasons than emitForceNewIG, e.g. if the current IG cannot fit another instrDesc or if we have reached the limit on the number of instructions in the current IG (255).

@ghost ghost added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Aug 6, 2022
@jakobbotsch jakobbotsch changed the title Fix alignment insertion assuming only emitForceNewIG can create new IGs JIT: Fix alignment insertion assuming only emitForceNewIG can create new IGs Aug 6, 2022
@ghost ghost assigned jakobbotsch Aug 6, 2022
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ghost commented Aug 6, 2022

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Issue Details

Issue I noticed over in #73365.
emitNewInstrAlign can create new IGs for other reasons than emitForceNewIG, e.g. if the current IG cannot fit another instrDesc or if we have reached the limit on the number of instructions in the current IG (255).

Author: jakobbotsch
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area-CodeGen-coreclr

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@jakobbotsch jakobbotsch added this to the 7.0.0 milestone Aug 6, 2022
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I realize there is emitCheckAlignFitInCurIG now, but it does not handle the 255 case (but maybe this is unreachable as we will reach the size limit before?). I'll just close this.

@jakobbotsch jakobbotsch closed this Aug 6, 2022
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