[WebAssembly] Consolidate sectionTypeToString in BinaryFormat [NFC]

Currently there are 2 duplicate implementation, and I want to add
a use in a 3rd place. Combine them in lib/BinaryFormat so they can
be shared.

Also update toString for symbol and reloc types to use StringRef

Differential Revision: https://reviews.llvm.org/D126553

1 files changed, 27 insertions, 2 deletions

diff --git a/llvm/lib/BinaryFormat/Wasm.cpp b/llvm/lib/BinaryFormat/Wasm.cpp
index 55efe31..babeb12 100644
--- a/llvm/lib/BinaryFormat/Wasm.cpp
+++ b/llvm/lib/BinaryFormat/Wasm.cpp
@@ -8,7 +8,7 @@
 
 #include "llvm/BinaryFormat/Wasm.h"
 
-std::string llvm::wasm::toString(wasm::WasmSymbolType Type) {
+llvm::StringRef llvm::wasm::toString(wasm::WasmSymbolType Type) {
   switch (Type) {
   case wasm::WASM_SYMBOL_TYPE_FUNCTION:
     return "WASM_SYMBOL_TYPE_FUNCTION";
@@ -26,7 +26,7 @@ std::string llvm::wasm::toString(wasm::WasmSymbolType Type) {
   llvm_unreachable("unknown symbol type");
 }
 
-std::string llvm::wasm::relocTypetoString(uint32_t Type) {
+llvm::StringRef llvm::wasm::relocTypetoString(uint32_t Type) {
   switch (Type) {
 #define WASM_RELOC(NAME, VALUE)                                                \
   case VALUE:                                                                  \
@@ -38,6 +38,31 @@ std::string llvm::wasm::relocTypetoString(uint32_t Type) {
   }
 }
 
+llvm::StringRef llvm::wasm::sectionTypeToString(uint32_t Type) {
+#define ECase(X)                                                               \
+  case wasm::WASM_SEC_##X:                                                     \
+    return #X;
+  switch (Type) {
+    ECase(CUSTOM);
+    ECase(TYPE);
+    ECase(IMPORT);
+    ECase(FUNCTION);
+    ECase(TABLE);
+    ECase(MEMORY);
+    ECase(GLOBAL);
+    ECase(EXPORT);
+    ECase(START);
+    ECase(ELEM);
+    ECase(CODE);
+    ECase(DATA);
+    ECase(DATACOUNT);
+    ECase(TAG);
+  default:
+    llvm_unreachable("unknown section type");
+  }
+#undef ECase
+}
+
 bool llvm::wasm::relocTypeHasAddend(uint32_t Type) {
   switch (Type) {
   case R_WASM_MEMORY_ADDR_LEB: