[WebAssembly] replaced .param/.result by .functype

Summary:
This makes it easier/cleaner to generate a single signature from
this directive. Also:
- Adds the symbol name, such that we don't depend on the location
  of this directive anymore.
- Actually constructs the signature in the assembler, and make the
  assembler own it.
- Refactor the use of MVT vs ValType in the streamer and assembler
  to require less conversions overall.
- Changed 700 or so tests to use it.

Reviewers: sbc100, dschuff

Subscribers: jgravelle-google, eraman, aheejin, sunfish, jfb, llvm-commits

Differential Revision: https://reviews.llvm.org/D54652

llvm-svn: 347228

2 files changed, 7 insertions, 1 deletions

diff --git a/llvm/lib/MC/MCParser/AsmLexer.cpp b/llvm/lib/MC/MCParser/AsmLexer.cpp
index c8d48f033f6..2b0d20f9b8e 100644
--- a/llvm/lib/MC/MCParser/AsmLexer.cpp
+++ b/llvm/lib/MC/MCParser/AsmLexer.cpp
@@ -627,7 +627,6 @@ AsmToken AsmLexer::LexToken() {
     return AsmToken(AsmToken::EndOfStatement, StringRef(TokStart, 1));
   case ':': return AsmToken(AsmToken::Colon, StringRef(TokStart, 1));
   case '+': return AsmToken(AsmToken::Plus, StringRef(TokStart, 1));
-  case '-': return AsmToken(AsmToken::Minus, StringRef(TokStart, 1));
   case '~': return AsmToken(AsmToken::Tilde, StringRef(TokStart, 1));
   case '(': return AsmToken(AsmToken::LParen, StringRef(TokStart, 1));
   case ')': return AsmToken(AsmToken::RParen, StringRef(TokStart, 1));
@@ -646,6 +645,12 @@ AsmToken AsmLexer::LexToken() {
       return AsmToken(AsmToken::EqualEqual, StringRef(TokStart, 2));
     }
     return AsmToken(AsmToken::Equal, StringRef(TokStart, 1));
+  case '-':
+    if (*CurPtr == '>') {
+      ++CurPtr;
+      return AsmToken(AsmToken::MinusGreater, StringRef(TokStart, 2));
+    }
+    return AsmToken(AsmToken::Minus, StringRef(TokStart, 1));
   case '|':
     if (*CurPtr == '|') {
       ++CurPtr;
diff --git a/llvm/lib/MC/MCParser/MCAsmLexer.cpp b/llvm/lib/MC/MCParser/MCAsmLexer.cpp
index 1ed056800d4..10960fc6963 100644
--- a/llvm/lib/MC/MCParser/MCAsmLexer.cpp
+++ b/llvm/lib/MC/MCParser/MCAsmLexer.cpp
@@ -85,6 +85,7 @@ void AsmToken::dump(raw_ostream &OS) const {
   case AsmToken::LessGreater:        OS << "LessGreater"; break;
   case AsmToken::LessLess:           OS << "LessLess"; break;
   case AsmToken::Minus:              OS << "Minus"; break;
+  case AsmToken::MinusGreater:       OS << "MinusGreater"; break;
   case AsmToken::Percent:            OS << "Percent"; break;
   case AsmToken::Pipe:               OS << "Pipe"; break;
   case AsmToken::PipePipe:           OS << "PipePipe"; break;