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
diff --git a/llvm/test/CodeGen/ARM64/inline-asm-error-M.ll b/llvm/test/CodeGen/ARM64/inline-asm-error-M.ll
new file mode 100644
index 0000000..952bf60
--- /dev/null
+++ b/llvm/test/CodeGen/ARM64/inline-asm-error-M.ll
@@ -0,0 +1,11 @@
+; RUN: not llc -march=arm64 < %s 2> %t
+; RUN: FileCheck --check-prefix=CHECK-ERRORS < %t %s
+
+; Check for at least one invalid constant.
+; CHECK-ERRORS: error: invalid operand for inline asm constraint 'M'
+
+define i32 @constraint_M(i32 %i, i32 %j) nounwind {
+entry:
+ %0 = tail call i32 asm sideeffect "movk $0, $1", "=r,M"(i32 305418240) nounwind
+ ret i32 %0
+}