[lld] [lld][WebAssembly] Add missing relocation types to the --compress-relocations path (PR #144578)

[Sam Clegg via llvm-commits]

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@@ -0,0 +1,130 @@
+# RUN: llvm-mc -mattr=+reference-types,+exception-handling -filetype=obj -triple=wasm32-unknown-unknown %s -o %t.o
+# RUN: wasm-ld --export-dynamic -o %t.wasm %t.o
+# RUN: llvm-objdump -d %t.wasm | FileCheck %s
+# RUN: wasm-ld --export-dynamic -O2 -o %t-opt.wasm %t.o
+# RUN: llvm-objdump -d %t-opt.wasm | FileCheck %s
+# RUN: not wasm-ld --compress-relocations -o %t-compressed.wasm %t.o 2>&1 | FileCheck %s -check-prefix=ERROR
+# RUN: wasm-ld --export-dynamic --strip-debug --compress-relocations -o %t-compressed.wasm %t.o
+# RUN: llvm-objdump -d %t-compressed.wasm | FileCheck %s -check-prefix=COMPRESS
+
+  .globl _start
+_start:
+  .functype _start () -> ()
+  end_function
+
+  .globl func_ret_i64
+func_ret_i64:
+  .functype func_ret_i64 () -> (i64)
+  i64.const 1
+  end_function
+
+  .globl func_ret_i32
+func_ret_i32:
+  .functype func_ret_i32 () -> (i32)
+  i32.const 2
+  end_function
+
+i32_global:
+  .globaltype i32_global, i32
+
+i32_tag:
+  .tagtype i32_tag i32
+
+  .globl test_memory_and_indirect_call_relocs
+test_memory_and_indirect_call_relocs:
+  .functype test_memory_and_indirect_call_relocs () -> ()
+  i32.const indirect_func_ret_i64 # R_WASM_MEMORY_ADDR_SLEB
+  i32.load  0
+  call_indirect () -> (i64)       # R_WASM_TYPE_INDEX_LEB, R_WASM_TABLE_NUMBER_LEB
+  drop
+  i32.const 0
+  i32.load  indirect_func_ret_i32 # R_WASM_MEMORY_ADDR_LEB
+  call_indirect () -> (i32)
+  drop
+  i32.const func_ret_i64          # R_WASM_TABLE_INDEX_SLEB
+  call_indirect () -> (i64)
+  drop
+  end_function
+
+# CHECK:    test_memory_and_indirect_call_relocs
+# CHECK:      41 90 88 80 80 00                 i32.const      1040
+# CHECK:      11 80 80 80 80 00 80 80 80 80 00  call_indirect  0
+# CHECK:      28 02 94 88 80 80 00              i32.load       1044
+# CHECK:      11 81 80 80 80 00 80 80 80 80 00  call_indirect  1
+# CHECK:      41 81 80 80 80 00                 i32.const      1
+# CHECK:      11 80 80 80 80 00 80 80 80 80 00  call_indirect  0
+# COMPRESS: test_memory_and_indirect_call_relocs
+# COMPRESS:   41 90 08                          i32.const      1040
+# COMPRESS:   11 00 00                          call_indirect  0
+# COMPRESS:   28 02 94 08                       i32.load       1044
+# COMPRESS:   11 01 00                          call_indirect  1
+# COMPRESS:   41 01                             i32.const      1
+# COMPRESS:   11 00 00                          call_indirect  0
+
+  .globl test_simple_index_relocs
+test_simple_index_relocs:
+  .functype test_simple_index_relocs () -> ()
+  call       func_ret_i32 # R_WASM_FUNCTION_INDEX_LEB
+  global.set i32_global   # R_WASM_GLOBAL_INDEX_LEB
+  i32.const  0
+  throw      i32_tag      # R_WASM_TAG_INDEX_LEB
+  end_function
+
+# CHECK:    test_simple_index_relocs
+# CHECK:      10 82 80 80 80 00  call        2
+# CHECK:      24 81 80 80 80 00  global.set  1
+# CHECK:      08 80 80 80 80 00  throw       0
+# COMPRESS: test_simple_index_relocs
+# COMPRESS:   10 02              call        2
+# COMPRESS:   24 01              global.set  1
+# COMPRESS:   08 00              throw       0
+
+  .globl test_special_relocs
+test_special_relocs:
+  .functype test_special_relocs () -> ()
+  i32.const indirect_func_ret_i64 at MBREL # R_WASM_MEMORY_ADDR_REL_SLEB
+  drop
+  i32.const func_ret_i32 at TBREL          # R_WASM_TABLE_INDEX_REL_SLEB
+  drop
+  i32.const i32_tls_data at TLSREL         # R_WASM_MEMORY_ADDR_TLS_SLEB
+  drop
+  end_function
+
+# CHECK:    test_special_relocs
----------------
sbc100 wrote:

How about calling this `test_relative_relocs`?

https://github.com/llvm/llvm-project/pull/144578