commit cf0fe8d813727383d630055bb9d1cde21b00b7e7
author Chris Lattner <sabre@nondot.org> Mon Oct 05 05:54:46 2009 +0000
committer Chris Lattner <sabre@nondot.org> Mon Oct 05 05:54:46 2009 +0000
tree 4ed7b0bdfe761ae52997a152437d00ddaae10360
parent 5f7962c1b6574e6d834925158886d7c0a1bab5dc

strength reduce a ton of type equality tests to check the typeid (Through
the new predicates I added) instead of going through a context and doing a
pointer comparison.  Besides being cheaper, this allows a smart compiler
to turn the if sequence into a switch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83297 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Bitcode/Reader/BitcodeReader.cpp

diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index fe0366f..50fc78c 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -342,7 +342,7 @@
     resize(Idx + 1);
 
   if (Value *V = MDValuePtrs[Idx]) {
-    assert(V->getType() == Type::getMetadataTy(Context) && "Type mismatch in value table!");
+    assert(V->getType()->isMetadataTy() && "Type mismatch in value table!");
     return V;
   }
 
@@ -808,7 +808,7 @@
       SmallVector<Value*, 8> Elts;
       for (unsigned i = 0; i != Size; i += 2) {
         const Type *Ty = getTypeByID(Record[i], false);
-        if (Ty == Type::getMetadataTy(Context))
+        if (Ty->isMetadataTy())
           Elts.push_back(MDValueList.getValueFwdRef(Record[i+1]));
         else if (Ty != Type::getVoidTy(Context))
           Elts.push_back(ValueList.getValueFwdRef(Record[i+1], Ty));
@@ -967,19 +967,19 @@
     case bitc::CST_CODE_FLOAT: {    // FLOAT: [fpval]
       if (Record.empty())
         return Error("Invalid FLOAT record");
-      if (CurTy == Type::getFloatTy(Context))
+      if (CurTy->isFloatTy())
         V = ConstantFP::get(Context, APFloat(APInt(32, (uint32_t)Record[0])));
-      else if (CurTy == Type::getDoubleTy(Context))
+      else if (CurTy->isDoubleTy())
         V = ConstantFP::get(Context, APFloat(APInt(64, Record[0])));
-      else if (CurTy == Type::getX86_FP80Ty(Context)) {
+      else if (CurTy->isX86_FP80Ty()) {
         // Bits are not stored the same way as a normal i80 APInt, compensate.
         uint64_t Rearrange[2];
         Rearrange[0] = (Record[1] & 0xffffLL) | (Record[0] << 16);
         Rearrange[1] = Record[0] >> 48;
         V = ConstantFP::get(Context, APFloat(APInt(80, 2, Rearrange)));
-      } else if (CurTy == Type::getFP128Ty(Context))
+      } else if (CurTy->isFP128Ty())
         V = ConstantFP::get(Context, APFloat(APInt(128, 2, &Record[0]), true));
-      else if (CurTy == Type::getPPC_FP128Ty(Context))
+      else if (CurTy->isPPC_FP128Ty())
         V = ConstantFP::get(Context, APFloat(APInt(128, 2, &Record[0])));
       else
         V = UndefValue::get(CurTy);