[PATCH] D12633: Implement ACLE 2.0 macros of chapters 6.6 and 6.7 for [ARM] and [Aarch64] targets

Richard Barton via cfe-commits cfe-commits at lists.llvm.org
Mon Sep 21 09:57:10 PDT 2015

richard.barton.arm added a comment.

Yes - I would be interested in knowing the rationale behind the original AArch64 setting of __ARM_FP_FPENV_ROUNDING.

I also question whether our pre-conditions for __ARM_FP_FAST are sufficient. There are many -f... options relating to maths operations, are these two the only ones that might not preserve the order of operations? I think clang ought to take a conservative stance when setting these flags.


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