Ahmed Bougacha 1d9de10130 [ARM NEON] Define vfms_f32 on ARM, and all vfms using vfma. ... r259537 added vfma/vfms to armv7, but the builtin was only lowered on the AArch64 side. Instead of supporting it on ARM, get rid of it. The vfms builtin lowered to: %nb = fsub float -0.0, %b %r = @llvm.fma.f32(%a, %nb, %c) Instead, define the operation in terms of vfma, and swap the multiplicands. It now lowers to: %na = fsub float -0.0, %a %r = @llvm.fma.f32(%na, %b, %c) This matches the instruction more closely, and lets current LLVM generate the "natural" operand ordering: fmls.2s v0, v1, v2 instead of the crooked (but equivalent): fmls.2s v0, v2, v1 Except for theses changes, assembly is identical. LLVM accepts both commutations, and the LLVM tests in: test/CodeGen/AArch64/arm64-fmadd.ll test/CodeGen/AArch64/fp-dp3.ll test/CodeGen/AArch64/neon-fma.ll test/CodeGen/ARM/fusedMAC.ll already check either the new one only, or both. Also verified against the test-suite unittests. llvm-svn: 266807		2016-04-19 19:44:45 +00:00
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clang	[ARM NEON] Define vfms_f32 on ARM, and all vfms using vfma.	2016-04-19 19:44:45 +00:00
clang-c	Revert 266186 as it breaks anything that includes type_traits on some platforms	2016-04-15 18:04:13 +00:00
CMakeLists.txt	…