[PATCH] D43922: [WebAssembly] Use uint8_t for single byte values to match the spec

[Sam Clegg via Phabricator via llvm-commits]

sbc100 updated this revision to Diff 136554.
sbc100 added a comment.

- rebase


Repository:
  rLLD LLVM Linker

https://reviews.llvm.org/D43922

Files:
  wasm/Writer.cpp
  wasm/WriterUtils.cpp
  wasm/WriterUtils.h


Index: wasm/WriterUtils.h
===================================================================
--- wasm/WriterUtils.h
+++ wasm/WriterUtils.h
@@ -57,7 +57,7 @@
 
 void writeU32(raw_ostream &OS, uint32_t Number, const Twine &Msg);
 
-void writeValueType(raw_ostream &OS, int32_t Type, const Twine &Msg);
+void writeValueType(raw_ostream &OS, uint8_t Type, const Twine &Msg);
 
 void writeSig(raw_ostream &OS, const llvm::wasm::WasmSignature &Sig);
 
Index: wasm/WriterUtils.cpp
===================================================================
--- wasm/WriterUtils.cpp
+++ wasm/WriterUtils.cpp
@@ -19,7 +19,7 @@
 using namespace llvm::wasm;
 using namespace lld::wasm;
 
-static const char *valueTypeToString(int32_t Type) {
+static const char *valueTypeToString(uint8_t Type) {
   switch (Type) {
   case WASM_TYPE_I32:
     return "i32";
@@ -73,15 +73,14 @@
   support::endian::Writer<support::little>(OS).write(Number);
 }
 
-void wasm::writeValueType(raw_ostream &OS, int32_t Type, const Twine &Msg) {
-  debugWrite(OS.tell(), Msg + "[type: " + valueTypeToString(Type) + "]");
-  encodeSLEB128(Type, OS);
+void wasm::writeValueType(raw_ostream &OS, uint8_t Type, const Twine &Msg) {
+  writeU8(OS, Type, Msg + "[type: " + valueTypeToString(Type) + "]");
 }
 
 void wasm::writeSig(raw_ostream &OS, const WasmSignature &Sig) {
-  writeSleb128(OS, WASM_TYPE_FUNC, "signature type");
+  writeU8(OS, WASM_TYPE_FUNC, "signature type");
   writeUleb128(OS, Sig.ParamTypes.size(), "param Count");
-  for (int32_t ParamType : Sig.ParamTypes) {
+  for (uint8_t ParamType : Sig.ParamTypes) {
     writeValueType(OS, ParamType, "param type");
   }
   if (Sig.ReturnType == WASM_TYPE_NORESULT) {
@@ -111,15 +110,15 @@
 }
 
 void wasm::writeLimits(raw_ostream &OS, const WasmLimits &Limits) {
-  writeUleb128(OS, Limits.Flags, "limits flags");
+  writeU8(OS, Limits.Flags, "limits flags");
   writeUleb128(OS, Limits.Initial, "limits initial");
   if (Limits.Flags & WASM_LIMITS_FLAG_HAS_MAX)
     writeUleb128(OS, Limits.Maximum, "limits max");
 }
 
 void wasm::writeGlobalType(raw_ostream &OS, const WasmGlobalType &Type) {
   writeValueType(OS, Type.Type, "global type");
-  writeUleb128(OS, Type.Mutable, "global mutable");
+  writeU8(OS, Type.Mutable, "global mutable");
 }
 
 void wasm::writeGlobal(raw_ostream &OS, const WasmGlobal &Global) {
Index: wasm/Writer.cpp
===================================================================
--- wasm/Writer.cpp
+++ wasm/Writer.cpp
@@ -261,7 +261,7 @@
   raw_ostream &OS = Section->getStream();
 
   writeUleb128(OS, 1, "table count");
-  writeSleb128(OS, WASM_TYPE_ANYFUNC, "table type");
+  writeU8(OS, WASM_TYPE_ANYFUNC, "table type");
   writeUleb128(OS, WASM_LIMITS_FLAG_HAS_MAX, "table flags");
   writeUleb128(OS, TableSize, "table initial size");
   writeUleb128(OS, TableSize, "table max size");
@@ -427,7 +427,7 @@
       WasmSymbolType Kind = Sym->getWasmType();
       uint32_t Flags = getWasmFlags(Sym);
 
-      writeUleb128(Sub.OS, Kind, "sym kind");
+      writeU8(Sub.OS, Kind, "sym kind");
       writeUleb128(Sub.OS, Flags, "sym flags");
 
       switch (Kind) {
@@ -503,7 +503,7 @@
       writeUleb128(Sub.OS, 0, "comdat flags"); // flags for future use
       writeUleb128(Sub.OS, C.second.size(), "num entries");
       for (const ComdatEntry &Entry : C.second) {
-        writeUleb128(Sub.OS, Entry.Kind, "entry kind");
+        writeU8(Sub.OS, Entry.Kind, "entry kind");
         writeUleb128(Sub.OS, Entry.Index, "entry index");
       }
     }


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D43922.136554.patch
Type: text/x-patch
Size: 3508 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20180301/539d9b58/attachment.bin>