[cfe-commits] r39665 - in /cfe/cfe/trunk/CodeGen: CGExpr.cpp CodeGenFunction.h

[clattner at cs.uiuc.edu]

Author: clattner
Date: Wed Jul 11 11:46:54 2007
New Revision: 39665

URL: http://llvm.org/viewvc/llvm-project?rev=39665&view=rev
Log:
Implement the equality operators for simple types

Modified:
    cfe/cfe/trunk/CodeGen/CGExpr.cpp
    cfe/cfe/trunk/CodeGen/CodeGenFunction.h

Modified: cfe/cfe/trunk/CodeGen/CGExpr.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/cfe/trunk/CodeGen/CGExpr.cpp?rev=39665&r1=39664&r2=39665&view=diff

==============================================================================
--- cfe/cfe/trunk/CodeGen/CGExpr.cpp (original)
+++ cfe/cfe/trunk/CodeGen/CGExpr.cpp Wed Jul 11 11:46:54 2007
@@ -645,6 +645,9 @@
   case BinaryOperator::Shl: return EmitBinaryShl(E);
   case BinaryOperator::Shr: return EmitBinaryShr(E);
     
+  case BinaryOperator::EQ:
+  case BinaryOperator::NE:  return EmitBinaryEquality(E);
+    
     // FIXME: relational
     
   case BinaryOperator::And: return EmitBinaryAnd(E);
@@ -768,6 +771,33 @@
     return RValue::get(Builder.CreateAShr(LHS, RHS, "shr"));
 }
 
+RValue CodeGenFunction::EmitBinaryEquality(const BinaryOperator *E) {
+  RValue LHS, RHS;
+  EmitUsualArithmeticConversions(E, LHS, RHS);
+
+  llvm::Value *Result;
+  if (LHS.isScalar()) {
+    if (LHS.getVal()->getType()->isFloatingPoint()) {
+      if (E->getOpcode() == BinaryOperator::EQ)
+        Result = Builder.CreateFCmpOEQ(LHS.getVal(), RHS.getVal(), "eq");
+      else
+        Result = Builder.CreateFCmpUNE(LHS.getVal(), RHS.getVal(), "ne");
+    } else {
+      // Otherwise, it is an integer or pointer comparison.
+      if (E->getOpcode() == BinaryOperator::EQ)
+        Result = Builder.CreateICmpEQ(LHS.getVal(), RHS.getVal(), "eq");
+      else
+        Result = Builder.CreateICmpNE(LHS.getVal(), RHS.getVal(), "ne");
+    }
+  } else {
+    // Struct/union/complex
+    assert(0 && "Aggregate comparisons not implemented yet!");
+  }
+  
+  // ZExt result to int.
+  return RValue::get(Builder.CreateZExt(Result, LLVMIntTy, "cmp.ext"));
+}
+
 RValue CodeGenFunction::EmitBinaryAnd(const BinaryOperator *E) {
   RValue LHS, RHS;
   EmitUsualArithmeticConversions(E, LHS, RHS);
@@ -869,7 +899,6 @@
   return RHS;
 }
 
-
 RValue CodeGenFunction::EmitBinaryComma(const BinaryOperator *E) {
   EmitExpr(E->getLHS());
   return EmitExpr(E->getRHS());

Modified: cfe/cfe/trunk/CodeGen/CodeGenFunction.h
URL: http://llvm.org/viewvc/llvm-project/cfe/cfe/trunk/CodeGen/CodeGenFunction.h?rev=39665&r1=39664&r2=39665&view=diff

==============================================================================
--- cfe/cfe/trunk/CodeGen/CodeGenFunction.h (original)
+++ cfe/cfe/trunk/CodeGen/CodeGenFunction.h Wed Jul 11 11:46:54 2007
@@ -274,6 +274,7 @@
   RValue EmitBinaryShr(const BinaryOperator *E);
   
   // FIXME: relational
+  RValue EmitBinaryEquality(const BinaryOperator *E);
   
   RValue EmitBinaryAnd(const BinaryOperator *E);
   RValue EmitBinaryXor(const BinaryOperator *E);