[WebAssembly] Rename except_ref type to exnref

Summary:
We agreed to rename `except_ref` to `exnref` for consistency with other
reference types in
https://github.com/WebAssembly/exception-handling/issues/79. This also
renames WebAssemblyInstrExceptRef.td to WebAssemblyInstrRef.td in order
to use the file for other reference types in future.

Reviewers: dschuff

Subscribers: sbc100, jgravelle-google, hiraditya, sunfish, jfb, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D64703

llvm-svn: 366145
diff --git a/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyInstPrinter.cpp b/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyInstPrinter.cpp
index cfa808b..a439b72 100644
--- a/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyInstPrinter.cpp
+++ b/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyInstPrinter.cpp
@@ -282,8 +282,8 @@
     return "funcref";
   case wasm::WASM_TYPE_FUNC:
     return "func";
-  case wasm::WASM_TYPE_EXCEPT_REF:
-    return "except_ref";
+  case wasm::WASM_TYPE_EXNREF:
+    return "exnref";
   case wasm::WASM_TYPE_NORESULT:
     return "void";
   default:
diff --git a/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.cpp b/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.cpp
index 21545c3..9c8ca1f 100644
--- a/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.cpp
+++ b/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.cpp
@@ -146,8 +146,8 @@
   case MVT::v4f32:
   case MVT::v2f64:
     return wasm::ValType::V128;
-  case MVT::ExceptRef:
-    return wasm::ValType::EXCEPT_REF;
+  case MVT::exnref:
+    return wasm::ValType::EXNREF;
   default:
     llvm_unreachable("unexpected type");
   }
diff --git a/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h b/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h
index a0d526b..31ad88b 100644
--- a/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h
+++ b/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h
@@ -130,7 +130,7 @@
   F32 = 0x7D,
   F64 = 0x7C,
   V128 = 0x7B,
-  ExceptRef = 0x68,
+  Exnref = 0x68,
   Invalid = 0x00
 };
 
@@ -403,8 +403,8 @@
   case WebAssembly::COPY_F64_S:
   case WebAssembly::COPY_V128:
   case WebAssembly::COPY_V128_S:
-  case WebAssembly::COPY_EXCEPT_REF:
-  case WebAssembly::COPY_EXCEPT_REF_S:
+  case WebAssembly::COPY_EXNREF:
+  case WebAssembly::COPY_EXNREF_S:
     return true;
   default:
     return false;
@@ -453,8 +453,8 @@
   case WebAssembly::CALL_v4f32_S:
   case WebAssembly::CALL_v2f64:
   case WebAssembly::CALL_v2f64_S:
-  case WebAssembly::CALL_ExceptRef:
-  case WebAssembly::CALL_ExceptRef_S:
+  case WebAssembly::CALL_exnref:
+  case WebAssembly::CALL_exnref_S:
   case WebAssembly::RET_CALL:
   case WebAssembly::RET_CALL_S:
     return true;
@@ -487,8 +487,8 @@
   case WebAssembly::CALL_INDIRECT_v4f32_S:
   case WebAssembly::CALL_INDIRECT_v2f64:
   case WebAssembly::CALL_INDIRECT_v2f64_S:
-  case WebAssembly::CALL_INDIRECT_ExceptRef:
-  case WebAssembly::CALL_INDIRECT_ExceptRef_S:
+  case WebAssembly::CALL_INDIRECT_exnref:
+  case WebAssembly::CALL_INDIRECT_exnref_S:
   case WebAssembly::RET_CALL_INDIRECT:
   case WebAssembly::RET_CALL_INDIRECT_S:
     return true;
@@ -530,8 +530,8 @@
   case WebAssembly::CALL_v4f32_S:
   case WebAssembly::CALL_v2f64:
   case WebAssembly::CALL_v2f64_S:
-  case WebAssembly::CALL_ExceptRef:
-  case WebAssembly::CALL_ExceptRef_S:
+  case WebAssembly::CALL_exnref:
+  case WebAssembly::CALL_exnref_S:
   case WebAssembly::CALL_INDIRECT_i32:
   case WebAssembly::CALL_INDIRECT_i32_S:
   case WebAssembly::CALL_INDIRECT_i64:
@@ -552,8 +552,8 @@
   case WebAssembly::CALL_INDIRECT_v4f32_S:
   case WebAssembly::CALL_INDIRECT_v2f64:
   case WebAssembly::CALL_INDIRECT_v2f64_S:
-  case WebAssembly::CALL_INDIRECT_ExceptRef:
-  case WebAssembly::CALL_INDIRECT_ExceptRef_S:
+  case WebAssembly::CALL_INDIRECT_exnref:
+  case WebAssembly::CALL_INDIRECT_exnref_S:
     return 1;
   default:
     llvm_unreachable("Not a call instruction");