Is it any way that we can chat? I'm working on my thesis project and a paper. I appreciate it if you would cooperate in this project. I have gmail Id "amir.yazdanbakhsh" and also skype "amir.yazdanbakhsh"
best regards, yazdanbakhsh wrote: > > Hi, > > Please assume I'm working with the MIPS. There is a little difference > between the MIPS and what I'm actually working on it. How can I remove > immediate logical shift right/left from the compiler? > I mean If I want the programmer writes an immediate shift, It is compiled > to the two instructions: > > sll %2,%2,5 > > changed to: > > addi %3,%0,5 > sllv %2,%2,%3 > > thanks in advance > > Ian Lance Taylor-3 wrote: >> >> yazdanbakhsh <amir.yazdanbak...@gmail.com> writes: >> >>> I'm working on my a gcc compiler for my own written processor with the >>> help >>> of SimpleScalar. >>> I want to remove "srav/slav" (immediate arithmetic shift) from the >>> instruction set. I explore ss.md file but I didn't see any define_ins >>> for >>> the mentioned instructions, but they are used in other instruction >>> definitions. >>> It is also exist for addi/addui. Where I can find the definitions of >>> these >>> instructions? I want to force gcc to just use register shift and >>> register >>> add. >> >> There is no ss.md file in the standard gcc distribution. If >> SimpleScalar has a gcc port, I don't know anything about it. So it's >> hard to answer to your question precisely. >> >> Instructions can come from either a .md file or a .c file in the >> config/CPU directory used for your CPU. If those instructions are >> appearing in the generated assembler, then they must be in there >> somewhere. >> >> Ian >> >> > > -- View this message in context: http://old.nabble.com/Question-about-Machine-Description-tp1026428p28439854.html Sent from the gcc - Dev mailing list archive at Nabble.com.
