[WebAssembly] Rename event to tag

We recently decided to change 'event' to 'tag', and 'event section' to
'tag section', out of the rationale that the section contains a
generalized tag that references a type, which may be used for something
other than exceptions, and the name 'event' can be confusing in the web
context.

See
- https://github.com/WebAssembly/exception-handling/issues/159#issuecomment-857910130
- https://github.com/WebAssembly/exception-handling/pull/161

Reviewed By: tlively

Differential Revision: https://reviews.llvm.org/D104423

1 files changed, 4 insertions, 5 deletions

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
index 2468df9..93e5f23 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
@@ -116,11 +116,10 @@ MCSymbol *WebAssemblyMCInstLower::GetExternalSymbolSymbol(
   SmallVector<wasm::ValType, 4> Returns;
   SmallVector<wasm::ValType, 4> Params;
   if (strcmp(Name, "__cpp_exception") == 0) {
-    WasmSym->setType(wasm::WASM_SYMBOL_TYPE_EVENT);
+    WasmSym->setType(wasm::WASM_SYMBOL_TYPE_TAG);
     // We can't confirm its signature index for now because there can be
     // imported exceptions. Set it to be 0 for now.
-    WasmSym->setEventType(
-        {wasm::WASM_EVENT_ATTRIBUTE_EXCEPTION, /* SigIndex */ 0});
+    WasmSym->setTagType({wasm::WASM_TAG_ATTRIBUTE_EXCEPTION, /* SigIndex */ 0});
     // We may have multiple C++ compilation units to be linked together, each of
     // which defines the exception symbol. To resolve them, we declare them as
     // weak.
@@ -179,8 +178,8 @@ MCOperand WebAssemblyMCInstLower::lowerSymbolOperand(const MachineOperand &MO,
       report_fatal_error("Function addresses with offsets not supported");
     if (WasmSym->isGlobal())
       report_fatal_error("Global indexes with offsets not supported");
-    if (WasmSym->isEvent())
-      report_fatal_error("Event indexes with offsets not supported");
+    if (WasmSym->isTag())
+      report_fatal_error("Tag indexes with offsets not supported");
     if (WasmSym->isTable())
       report_fatal_error("Table indexes with offsets not supported");