[WebAssembly] call_indirect issues table number relocs

This patch changes to make call_indirect explicitly refer to the
corresponding function table, residualizing TABLE_NUMBER relocs against
it.

With this change, wasm-ld now sees all references to tables, and can
link multiple tables.

Differential Revision: https://reviews.llvm.org/D90948

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
index 86d59ef..8923ecb 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
@@ -161,6 +161,8 @@ MCOperand WebAssemblyMCInstLower::lowerSymbolOperand(const MachineOperand &MO,
       report_fatal_error("Global indexes with offsets not supported");
     if (WasmSym->isEvent())
       report_fatal_error("Event indexes with offsets not supported");
+    if (WasmSym->isTable())
+      report_fatal_error("Table indexes with offsets not supported");
 
     Expr = MCBinaryExpr::createAdd(
         Expr, MCConstantExpr::create(MO.getOffset(), Ctx), Ctx);
@@ -259,7 +261,7 @@ void WebAssemblyMCInstLower::lower(const MachineInstr *MI,
 
           // return_call_indirect instructions have the return type of the
           // caller
-          if (MI->getOpcode() == WebAssembly::RET_CALL_INDIRECT)
+          if (WebAssembly::isRetCallIndirect(MI->getOpcode()))
             getFunctionReturns(MI, Returns);
 
           MCOp = lowerTypeIndexOperand(std::move(Returns), std::move(Params));