[WebAssembly] Simplified selecting asmmatcher stack instructions.

Summary:
By using the existing isCodeGenOnly bit in the tablegen defs, as
suggested by tlively in https://reviews.llvm.org/D51662

Tested: llvm-lit -v `find test -name WebAssembly`

Reviewers: tlively

Subscribers: dschuff, sbc100, jgravelle-google, aheejin, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D52373

llvm-svn: 342772

1 files changed, 0 insertions, 10 deletions

diff --git a/llvm/utils/TableGen/AsmMatcherEmitter.cpp b/llvm/utils/TableGen/AsmMatcherEmitter.cpp
index a0283fc8017..e808661b7a5 100644
--- a/llvm/utils/TableGen/AsmMatcherEmitter.cpp
+++ b/llvm/utils/TableGen/AsmMatcherEmitter.cpp
@@ -1479,8 +1479,6 @@ void AsmMatcherInfo::buildInfo() {
   bool ReportMultipleNearMisses =
       AsmParser->getValueAsBit("ReportMultipleNearMisses");
 
-  bool IsWebAssemblyTarget = Target.getName() == "WebAssembly";
-
   // Parse the instructions; we need to do this first so that we can gather the
   // singleton register classes.
   SmallPtrSet<Record*, 16> SingletonRegisters;
@@ -1516,14 +1514,6 @@ void AsmMatcherInfo::buildInfo() {
       if (!V.empty() && V != Variant.Name)
         continue;
 
-      // [WebAssembly] Ignore non-stack instructions.
-      if (IsWebAssemblyTarget) {
-        auto Bit = CGI->TheDef->getValue("StackBased")->getValue()->
-                     getCastTo(BitRecTy::get());
-        if (!Bit || !reinterpret_cast<const BitInit *>(Bit)->getValue())
-          continue;
-      }
-
       auto II = llvm::make_unique<MatchableInfo>(*CGI);
 
       II->initialize(*this, SingletonRegisters, Variant, HasMnemonicFirst);