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Hello, Artur > I've compared again everything to systemz. The problem was I've defined > paired class as a subclass of Register class instead of RegisterWithSubRegs > class. After change the code is OK. Ok, nice > Yes, I have those. > If you don't mind I'll ask few compilers/LLVM newbie questions. > I'd appreciate if someone could enlighten me on pseudo

Hi Anton, Thanks for reply > I have defined registers, aliases and subregister set. > > The problem is that register allocator is using 32bit registers that are > > already used in a pair, for example: > > lw $r0, 16[$r12] // load word to r0 > > ld $p0, 36[$r12] // load doubleword to p0 > > shl $p0, $p0, $r0 // shift left p0 by r0 and store result in p0