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Tools and Software
Open Source Software
SVE and SVE2 support in LLVM toolchain
LLVM 5 onwards - SVE asm/disasm support
SVE - No intrinsic or auto-vectorization support
SVE2 - No support
LLVM 9 onwards - SVE2 asm/disasm support
SVE and SVE2 - No intrinsic or auto-vectorization support
LLVM 11 - SVE and SVE2 intrinsic
Clang: SVE and SVE2 - Vector Length Agnostic (VLA) intrinsic support
Clang: SVE and SVE2 - No support for VLS (-msve-vector-bits=) intrinsic
Clang: SVE and SVE2 - No auto-vectorization support
LLDB: Basic debug support - No SVE register access.
__ARM_FEATURE_SVE (Base SVE functions defined in ACLE specification)
__ARM_FEATURE_SVE2_BITPERM (SVE2 bit permutation extensions)
__ARM_FEATURE_SVE2_AES (SVE2 AES-128 extensions)
__ARM_FEATURE_SVE2_SHA3 (SVE2 SHA3 extensions)
__ARM_FEATURE_SVE2_SM4 (SVE2 SM4 extensions)
Stack unwinding in the presence of ACLE variables on the stack.
Debug: Stepping of functions, software and hardware breakpoints, disassembly.
__ARM_FEATURE_SVE_BITS (Support for the arm_sve_vector_bits(N) attribute, which is part of vector-length specific ACLE support)
__ARM_FEATURE_SVE_VECTOR_OPERATORS (Support for casting between GNU vector types and SVE vector types when arm_sve_vector_bits is specified - part of VLS ACLE support)
__ARM_FEATURE_SVE_PREDICATE_OPERATORS (VLS support for SVE predicate types - part of VLS ACLE support)
__ARM_FEATURE_SVE_NONMEMBER_OPERATORS (C++ non-member operator functions. This is a convenience function and allows (for example) use of the infix + operator on SVE ACLE variables)
Debug Info support is not available for SVE variables in clang/LLVM
SVE register access is not available in LLDB
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