[cfe-commits] [patch] Fix order of operands in NEON vfma intrinsic

[Tim Northover]

Hi,

While applying some review comments for the AArch64 code, I noticed that the 
arguments are marshalled incorrectly when converting a NEON vfma intrinsic 
into an LLVM fma version.

The NEON version expects the modified (accumulator) argument to come first, 
however the LLVM version follows libm's semantics in putting the accumulator 
last.

This patch should fix the issue. Ok to commit?

Cheers.

Tim.
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