commit 245dceb06d5d4ef8a4edace1cfddf54cf0122a64
author Dale Johannesen <dalej@apple.com> Tue Sep 11 18:32:33 2007 +0000
committer Dale Johannesen <dalej@apple.com> Tue Sep 11 18:32:33 2007 +0000
tree 5eecd813137e3673308a5f0e3ba38adc6f6dede4
parent 32ef96186f13d5fa1ca9aad369f1198fbba6a56d

Add APInt interfaces to APFloat (allows directly
access to bits).  Use them in place of float and
double interfaces where appropriate.
First bits of x86 long double constants handling 
(untested, probably does not work).

llvm-svn: 41858

llvm/lib/Target/X86/X86ISelLowering.cpp

diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 6d3bcf7..95450ac 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -3410,11 +3410,11 @@
   const Type *OpNTy =  MVT::getTypeForValueType(EltVT);
   std::vector<Constant*> CV;
   if (EltVT == MVT::f64) {
-    Constant *C = ConstantFP::get(OpNTy, APFloat(BitsToDouble(~(1ULL << 63))));
+    Constant *C = ConstantFP::get(OpNTy, APFloat(APInt(64, ~(1ULL << 63))));
     CV.push_back(C);
     CV.push_back(C);
   } else {
-    Constant *C = ConstantFP::get(OpNTy, APFloat(BitsToFloat(~(1U << 31))));
+    Constant *C = ConstantFP::get(OpNTy, APFloat(APInt(32, ~(1U << 31))));
     CV.push_back(C);
     CV.push_back(C);
     CV.push_back(C);
@@ -3438,11 +3438,11 @@
   const Type *OpNTy =  MVT::getTypeForValueType(EltVT);
   std::vector<Constant*> CV;
   if (EltVT == MVT::f64) {
-    Constant *C = ConstantFP::get(OpNTy, APFloat(BitsToDouble(1ULL << 63)));
+    Constant *C = ConstantFP::get(OpNTy, APFloat(APInt(64, 1ULL << 63)));
     CV.push_back(C);
     CV.push_back(C);
   } else {
-    Constant *C = ConstantFP::get(OpNTy, APFloat(BitsToFloat(1U << 31)));
+    Constant *C = ConstantFP::get(OpNTy, APFloat(APInt(32, 1U << 31)));
     CV.push_back(C);
     CV.push_back(C);
     CV.push_back(C);
@@ -3479,13 +3479,13 @@
   // First get the sign bit of second operand.
   std::vector<Constant*> CV;
   if (SrcVT == MVT::f64) {
-    CV.push_back(ConstantFP::get(SrcTy, APFloat(BitsToDouble(1ULL << 63))));
-    CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0)));
+    CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(64, 1ULL << 63))));
+    CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(64, 0))));
   } else {
-    CV.push_back(ConstantFP::get(SrcTy, APFloat(BitsToFloat(1U << 31))));
-    CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0f)));
-    CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0f)));
-    CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0f)));
+    CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 1U << 31))));
+    CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 0))));
+    CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 0))));
+    CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 0))));
   }
   Constant *C = ConstantVector::get(CV);
   SDOperand CPIdx = DAG.getConstantPool(C, getPointerTy(), 4);
@@ -3507,13 +3507,13 @@
   // Clear first operand sign bit.
   CV.clear();
   if (VT == MVT::f64) {
-    CV.push_back(ConstantFP::get(SrcTy, APFloat(BitsToDouble(~(1ULL << 63)))));
-    CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0)));
+    CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(64, ~(1ULL << 63)))));
+    CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(64, 0))));
   } else {
-    CV.push_back(ConstantFP::get(SrcTy, APFloat(BitsToFloat(~(1U << 31)))));
-    CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0f)));
-    CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0f)));
-    CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0f)));
+    CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, ~(1U << 31)))));
+    CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 0))));
+    CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 0))));
+    CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 0))));
   }
   C = ConstantVector::get(CV);
   CPIdx = DAG.getConstantPool(C, getPointerTy(), 4);