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Hi all, How do I properly/conveniently change ISA features of the code to be generated? For instance I have a Core 2 Duo with SSSE3 but I'd also like to test whether everything would JIT compile correctly on something with just SSE2 (a Pentium 4) or even older. In other words, how do I prevent LLVM from using certain target features? Thanks, Nicolas Capens -------------- next part

On Jul 18, 2008, at 8:42 AM, Nicolas Capens wrote: > Hi all, > > How do I properly/conveniently change ISA features of the code to be > generated? For instance I have a Core 2 Duo with SSSE3 but I’d also > like to test whether everything would JIT compile correctly on > something with just SSE2 (a Pentium 4) or even older. In other > words, how do I prevent LLVM from

...es? The JIT defaults to using whatever it can. You can hack X86Subtarget::AutoDetectSubtargetFeatures() to disable specific features. -Chris -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20080720/9f1542d0/attachment.html>