search for: x86instrmmx

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2010 Sep 08
4
[LLVMdev] MMX vs SSE
I'm working on changing the MMX implementation to use intrinsics in all cases, which should stop various optimization passes from creating MMX instructions that screw up the x87 stack. Right now the MMX instructions are split between X86InstrMMX.td and X86InstrSSE.td, presumably on the historical grounds that some of them weren't introduced until SSE or SSSE3, and require support for that feature to work. I'm thinking it would be cleaner to keep them all in X86InstrMMX. Does anyone have an opinion about this?
2014 Apr 16
2
[LLVMdev] X86 mmx movq disassembler fail
0x0f 0x6f 0xc8 And 0x0f 0x7f 0xc1 Should both be movq % mm0, % mm1. (AT&T) However, llvm 3.4 at least does not recognise the second variant as being a valid instruction. We are currently compiling up latest src incase it has been fixed. If not, could someone take a look or recommend how to fix? Lee -------------- next part -------------- An HTML attachment was scrubbed... URL: