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Hi, Hi, I was going through Code of LLVM instruction code generation for ARM. I came across VMLA instruction hazards (Floating point multiply and accumulate). I was comparing assembly code emitted by LLVM and GCC, where i saw that GCC was happily using VMLA instruction for floating point while LLVM never used it, instead it used a pair of VMUL and VADD instruction. I wanted to know if there is

> I was going through Code of LLVM instruction code generation for ARM. I came > across VMLA instruction hazards (Floating point multiply and accumulate). I > was comparing assembly code emitted by LLVM and GCC, where i saw that GCC > was happily using VMLA instruction for floating point while LLVM never used > it, instead it used a pair of VMUL and VADD instruction. It looks like

...ask), cortex-a9, cortex-a12, cortex-a15 or > krait I believe. > Hi Tim, Cortex A8 and A9 use VFPv3. A7, A12 and A15 use VFPv4. cheers, --renato -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20131218/4d77d09c/attachment.html>