search for: mulll

...instructions: #define MULL(t,s1,s2) t = (s1) * INT16(s2) #define MULLU(t,s1,s2) t = (s1) * UINT16(s2) #define MULH(t,s1,s2) t = (s1) * INT16((s2) >> 16) #define MULHU(t,s1,s2) t = (s1) * UINT16((s2) >> 16) #define MULHS(t,s1,s2) t = ((s1) * UINT16((s2) >> 16)) << 16 #define MULLL(t,s1,s2) t = INT16(s1) * INT16(s2) #define MULLLU(t,s1,s2) t = UINT16(s1) * UINT16(s2) #define MULLH(t,s1,s2) t = INT16(s1) * INT16((s2) >> 16) #define MULLHU(t,s1,s2) t = UINT16(s1) * UINT16((s2) >> 16) #define MULHH(t,s1,s2) t = INT16((s1) >> 16) * INT16((s2) >> 16) #de...

Hi Sam, I am not a MIPS expert by any means, so YMMV, but: MIPS addu only differs to "add" in its (non)setting of the overflow flag. Because LLVM doesn't provide a way via the IR to access the overflow flag, a special notation isn't required in the IR to distinguish the two operations. Do you have another example? Cheers, James -----Original Message----- From:

Thanks for the replies guys but I think I should have phrased my question better... looking at the Mips backend there are machine instructions that operate on signed and unsigned data, such as add and addu. And like Mips, I need to specify unsigned specific instructions, so how do these get chosen between if the LLVM IR does not carry type data? A very general point in the right direction is all i