search for: d194

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2017 Nov 13
2
Reaching definitions on Machine IR post register allocation
...(d11):u23, u52<ECX>(d4):] > >                                                   . > >                                                   . > >                                                   . > > s61: CMP32mr [d62<EFLAGS>!(d58,d80,u205):, u63<RDI>(+d194):u55, > u64<RSI>(d57):, u65<ECX>(d50):] > > This is a test case I was interested in because it shows the partial > register redefinition scenario in X86 for which more register units > needed to be added. I have a hacky fix for this in TableGen code which > adds m...
2017 Nov 24
2
Reaching definitions on Machine IR post register allocation
.... >>> >>> . >>> >>> . >>> >>> s61: CMP32mr [d62<EFLAGS>!(d58,d80,u205):, u63<RDI>(+d194):u55, >>> u64<RSI>(d57):, u65<ECX>(d50):] >>> >>> This is a test case I was interested in because it shows the partial >>> register redefinition scenario in X86 for which more register units needed >>> to be added. I have a hacky fix for this...
2017 Nov 01
2
Reaching definitions on Machine IR post register allocation
Hi Geoff/Krzyssztof, Wouldn't the isRenamable() change be required even for the RDF based copy propagation? Maybe Hexagon does not impose ABI/ISA restrictions which require specific registers to be used in specific contexts. Also, if Geoff's copy propagation pass is invoked post-RA wouldn't it need to handle the x86 ISA feature which allows 8 bit/16 bit values to be moved into a