ARM64: initial backend import

This adds a second implementation of the AArch64 architecture to LLVM,
accessible in parallel via the "arm64" triple. The plan over the
coming weeks & months is to merge the two into a single backend,
during which time thorough code review should naturally occur.

Everything will be easier with the target in-tree though, hence this
commit.

llvm-svn: 205090

1 files changed, 21 insertions, 0 deletions

diff --git a/llvm/include/llvm-c/Disassembler.h b/llvm/include/llvm-c/Disassembler.h
index aec037e16b7..8f31150ad91 100644
--- a/llvm/include/llvm-c/Disassembler.h
+++ b/llvm/include/llvm-c/Disassembler.h
@@ -96,6 +96,16 @@ struct LLVMOpInfo1 {
 #define LLVMDisassembler_VariantKind_ARM_LO16 2 /* :lower16: */
 
 /**
+ * The ARM64 target VariantKinds.
+ */
+#define LLVMDisassembler_VariantKind_ARM64_PAGE       1 /* @page */
+#define LLVMDisassembler_VariantKind_ARM64_PAGEOFF    2 /* @pageoff */
+#define LLVMDisassembler_VariantKind_ARM64_GOTPAGE    3 /* @gotpage */
+#define LLVMDisassembler_VariantKind_ARM64_GOTPAGEOFF 4 /* @gotpageoff */
+#define LLVMDisassembler_VariantKind_ARM64_TLVP       5 /* @tvlppage */
+#define LLVMDisassembler_VariantKind_ARM64_TLVOFF     6 /* @tvlppageoff */
+
+/**
  * The type for the symbol lookup function.  This may be called by the
  * disassembler for things like adding a comment for a PC plus a constant
  * offset load instruction to use a symbol name instead of a load address value.
@@ -123,6 +133,17 @@ typedef const char *(*LLVMSymbolLookupCallback)(void *DisInfo,
 /* The input reference is from a PC relative load instruction. */
 #define LLVMDisassembler_ReferenceType_In_PCrel_Load 2
 
+/* The input reference is from an ARM64::ADRP instruction. */
+#define LLVMDisassembler_ReferenceType_In_ARM64_ADRP 0x100000001
+/* The input reference is from an ARM64::ADDXri instruction. */
+#define LLVMDisassembler_ReferenceType_In_ARM64_ADDXri 0x100000002
+/* The input reference is from an ARM64::LDRXui instruction. */
+#define LLVMDisassembler_ReferenceType_In_ARM64_LDRXui 0x100000003
+/* The input reference is from an ARM64::LDRXl instruction. */
+#define LLVMDisassembler_ReferenceType_In_ARM64_LDRXl 0x100000004
+/* The input reference is from an ARM64::ADR instruction. */
+#define LLVMDisassembler_ReferenceType_In_ARM64_ADR 0x100000005
+
 /* The output reference is to as symbol stub. */
 #define LLVMDisassembler_ReferenceType_Out_SymbolStub 1
 /* The output reference is to a symbol address in a literal pool. */