[test] Improve R_AARCH64_PLT32 and R_AARCH64_GOTPCREL32 tests

Author: MaskRay

llvm/test/MC/AArch64/data-directive-specifier.s

@@ -0,0 +1,44 @@
+# RUN: llvm-mc -triple=aarch64 -filetype=obj %s | llvm-readobj -r - | FileCheck %s
+# RUN: not llvm-mc -triple=aarch64 -filetype=obj %s --defsym ERR=1 -o /dev/null 2>&1 | FileCheck %s --check-prefix=ERR --implicit-check-not=error:
+
+.globl g
+g:
+l:
+
+# CHECK:      Section ({{.*}}) .rela.data {
+# CHECK-NEXT:   0x0 R_AARCH64_PLT32 l 0x0
+# CHECK-NEXT:   0x4 R_AARCH64_PLT32 l 0x4
+# CHECK-NEXT:   0x8 R_AARCH64_PLT32 extern 0x4
+# CHECK-NEXT:   0xC R_AARCH64_PLT32 g 0x8
+# CHECK-NEXT:   0x10 R_AARCH64_PLT32 g 0x18
+# CHECK-NEXT: }
+.data
+.word l@plt - .
+.word l@plt - .data
+
+.word extern@plt - . + 4
+.word g@plt - . + 8
+.word g@plt - .data + 8
+
+# CHECK:      Section ({{.*}}) .rela.data1 {
+# CHECK-NEXT:   0x0 R_AARCH64_GOTPCREL32 data1 0x0
+# CHECK-NEXT:   0x4 R_AARCH64_GOTPCREL32 extern 0x4
+# CHECK-NEXT:    0x8 R_AARCH64_GOTPCREL32 extern 0xFFFFFFFFFFFFFFFB
+# CHECK-NEXT: }
+.section .data1,"aw"
+data1:
+.word data1@GOTPCREL
+.word extern@gotpcrel+4
+.word extern@GOTPCREL-5
+
+.ifdef ERR
+# ERR: [[#@LINE+1]]:7: error: symbol 'und' can not be undefined in a subtraction expression
+.word extern@plt - und
+
+.quad g@plt - .
+
+.word extern@gotpcrel - .
+
+# ERR: [[#@LINE+1]]:7: error: symbol 'und' can not be undefined in a subtraction expression
+.word extern@gotpcrel - und
+.endif