[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/Triple.cpp b/llvm/lib/Support/Triple.cpp
index caf39a7..eacfe3b 100644
--- a/llvm/lib/Support/Triple.cpp
+++ b/llvm/lib/Support/Triple.cpp
@@ -625,6 +625,8 @@
return Triple::ARMSubArch_v8m_baseline;
case ARM::ArchKind::ARMV8MMainline:
return Triple::ARMSubArch_v8m_mainline;
+ case ARM::ArchKind::ARMV8_1MMainline:
+ return Triple::ARMSubArch_v8_1m_mainline;
default:
return Triple::NoSubArch;
}