[lld][WebAssembly] Convert test to assembly. NFC.

Differential Revision: https://reviews.llvm.org/D102264

Author: sbc100

lld/test/wasm/reloc-addend.ll

@@ -0,0 +1,31 @@
+# RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown -o %t.o %s
+# RUN: wasm-ld -r -o %t.wasm %t.o
+# RUN: obj2yaml %t.wasm | FileCheck %s
+
+.hidden foo
+.hidden bar
+.globl  foo
+.globl  bar
+
+# Similar to what would be generated from: `int foo[76]`
+  .section  .bss.foo,"",@
+  .p2align  4
+foo:
+  .skip 304
+  .size foo, 304
+
+# bar contains a pointer to the 16th element of foo, which happens to be 64
+# bytes in.  This generates an addend of 64 which is the value at which signed
+# and unsigned LEB encodes will differ.
+  .section  .data.bar,"",@
+  .p2align  2
+bar:
+  .int32  foo+64
+  .size bar, 4
+
+# CHECK:        - Type:            DATA
+# CHECK-NEXT:     Relocations:
+# CHECK-NEXT:       - Type:            R_WASM_MEMORY_ADDR_I32
+# CHECK-NEXT:         Index:           0
+# CHECK-NEXT:         Offset:          0x6
+# CHECK-NEXT:         Addend:          64