Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/test/MC/AArch64/elf-extern.s

@@ -0,0 +1,33 @@
+// RUN: llvm-mc < %s -triple=aarch64-none-linux-gnu -filetype=obj | llvm-readobj -r | FileCheck %s
+
+// External symbols are a different concept to global variables but should still
+// get relocations and so on when used.
+
+	.file	"<stdin>"
+	.text
+	.globl	check_extern
+	.type	check_extern,@function
+check_extern:                           // @check_extern
+	.cfi_startproc
+// %bb.0:
+	sub	sp, sp, #16
+.Ltmp2:
+	.cfi_def_cfa sp, 16
+	str	x30, [sp, #8]           // 8-byte Folded Spill
+.Ltmp3:
+	.cfi_offset x30, -8
+	bl	memcpy
+	mov	 x0, xzr
+	ldr	x30, [sp, #8]           // 8-byte Folded Reload
+	add	sp, sp, #16
+	ret
+.Ltmp4:
+	.size	check_extern, .Ltmp4-check_extern
+	.cfi_endproc
+
+
+// CHECK: Relocations [
+// CHECK:   Section {{.*}} .rela.text {
+// CHECK:     0x{{[0-9,A-F]+}} R_AARCH64_CALL26 memcpy
+// CHECK:   }
+// CHECK: ]