Craig Topper a9839b29b1 [X86] Add separate intrinsics for scalar FMA4 instructions. ... Summary: These instructions zero the non-scalar part of the lower 128-bits which makes them different than the FMA3 instructions which pass through the non-scalar part of the lower 128-bits. I've only added fmadd because we should be able to derive all other variants using operand negation in the intrinsic header like we do for AVX512. I think there are still some missed negate folding opportunities with the FMA4 instructions in light of this behavior difference that I hadn't noticed before. I've split the tests so that we can use different intrinsics for scalar testing between the two. I just copied the tests split the RUN lines and changed out the scalar intrinsics. fma4-fneg-combine.ll is a new test to make sure we negate the fma4 intrinsics correctly though there are a couple TODOs in it. Reviewers: RKSimon, spatel Reviewed By: RKSimon Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D39851 llvm-svn: 318984		2017-11-25 18:32:43 +00:00
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llvm	[X86] Add separate intrinsics for scalar FMA4 instructions.	2017-11-25 18:32:43 +00:00
llvm-c	Use code voice for DIBuilder in LLVM C API	2017-11-04 20:31:20 +00:00