[ARM] add target arch definitions for 8.1-M and MVE
This adds:
- LLVM subtarget features to make all the new instructions conditional on,
- CPU and FPU names for use on clang's command line, with default FPUs set
so that "armv8.1-m.main+fp" and "armv8.1-m.main+fp.dp" will select the right
FPU features,
- architecture extension names "mve" and "mve.fp",
- ABI build attribute support for v8.1-M (a new value for Tag_CPU_arch) and MVE
(a new actual tag).
Patch mostly by Simon Tatham.
Differential Revision: https://reviews.llvm.org/D60698
llvm-svn: 362090
diff --git a/llvm/lib/Support/ARMBuildAttrs.cpp b/llvm/lib/Support/ARMBuildAttrs.cpp
index f5fb64b..d0c4fb7 100644
--- a/llvm/lib/Support/ARMBuildAttrs.cpp
+++ b/llvm/lib/Support/ARMBuildAttrs.cpp
@@ -28,6 +28,7 @@
{ ARMBuildAttrs::FP_arch, "Tag_FP_arch" },
{ ARMBuildAttrs::WMMX_arch, "Tag_WMMX_arch" },
{ ARMBuildAttrs::Advanced_SIMD_arch, "Tag_Advanced_SIMD_arch" },
+ { ARMBuildAttrs::MVE_arch, "Tag_MVE_arch" },
{ ARMBuildAttrs::PCS_config, "Tag_PCS_config" },
{ ARMBuildAttrs::ABI_PCS_R9_use, "Tag_ABI_PCS_R9_use" },
{ ARMBuildAttrs::ABI_PCS_RW_data, "Tag_ABI_PCS_RW_data" },