search for: tldrr

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[ARM] Should Use Load and Store with Register Offset
2020 Jul 20
2
[ARM] Should Use Load and Store with Register Offset
...could be applied. I have also: - Compiled with -S -emit-llvm (see Godbolt link) There is an identifiable pattern where a getelementptr function is followed by a load or store. When multiple getelementptr functions appear with the same virtual register offset, maybe this should match a tLDRr or tSTRr. - Ran LLC with --print-machineinstrs It appears that tLDRBi and tSTRBi are selected very early and never replaced by the equivalent t<LDRB|STRB>r instructions. Thank you, Daniel Way -------------- next part -------------- An HTML attachment was scrubbed... URL: <ht...
[ARM] Should Use Load and Store with Register Offset
2020 Jul 21
2
[ARM] Should Use Load and Store with Register Offset
...e also: > > - Compiled with -S -emit-llvm (see Godbolt link) > There is an identifiable pattern where a getelementptr function is > followed by a load or store. When multiple getelementptr functions appear > with the same virtual register offset, maybe this should match a tLDRr or > tSTRr. > - Ran LLC with --print-machineinstrs > It appears that tLDRBi and tSTRBi are selected very early and never > replaced by the equivalent t<LDRB|STRB>r instructions. > > Thank you, > > Daniel Way > -------------- next part -------------- An...