AArch64: be more careful resorting to inefficient addressing for weak vars.
If an otherwise weak var is actually defined in this unit, it can't be
undefined at runtime so we can use normal global variable sequences (ADRP/ADD)
to access it.
llvm-svn: 176259
diff --git a/llvm/test/CodeGen/AArch64/extern-weak.ll b/llvm/test/CodeGen/AArch64/extern-weak.ll
index f358243..3d3d867 100644
--- a/llvm/test/CodeGen/AArch64/extern-weak.ll
+++ b/llvm/test/CodeGen/AArch64/extern-weak.ll
@@ -24,4 +24,12 @@
; CHECK: ldr [[BASE:x[0-9]+]], [{{x[0-9]+}}, #:lo12:.LCPI1_0]
; CHECK: add x0, [[BASE]], #20
ret i32* %addr
+}
+
+@defined_weak_var = internal unnamed_addr global i32 0
+
+define i32* @wibble() {
+ ret i32* @defined_weak_var
+; CHECK: adrp [[BASE:x[0-9]+]], defined_weak_var
+; CHECK: add x0, [[BASE]], #:lo12:defined_weak_var
}
\ No newline at end of file