[llvm-commits] CVS: llvm/lib/CodeGen/AsmPrinter.cpp

[Jim Laskey]

Changes in directory llvm/lib/CodeGen:

AsmPrinter.cpp updated: 1.19 -> 1.20
---
Log message:

Culling out use of unions for converting FP to bits and vice versa.




---
Diffs of the changes:  (+7 -18)

 AsmPrinter.cpp |   25 +++++++------------------
 1 files changed, 7 insertions(+), 18 deletions(-)


Index: llvm/lib/CodeGen/AsmPrinter.cpp
diff -u llvm/lib/CodeGen/AsmPrinter.cpp:1.19 llvm/lib/CodeGen/AsmPrinter.cpp:1.20
--- llvm/lib/CodeGen/AsmPrinter.cpp:1.19	Sun Aug  7 23:26:32 2005
+++ llvm/lib/CodeGen/AsmPrinter.cpp	Wed Aug 17 14:24:40 2005
@@ -15,6 +15,7 @@
 #include "llvm/Constants.h"
 #include "llvm/Instruction.h"
 #include "llvm/Support/Mangler.h"
+#include "llvm/Support/MathExtras.h"
 #include "llvm/Target/TargetMachine.h"
 using namespace llvm;
 
@@ -222,39 +223,27 @@
     // precision...
     double Val = CFP->getValue();
     if (CFP->getType() == Type::DoubleTy) {
-      union DU {                            // Abide by C TBAA rules
-        double FVal;
-        uint64_t UVal;
-      } U;
-      U.FVal = Val;
-
       if (Data64bitsDirective)
-        O << Data64bitsDirective << U.UVal << "\t" << CommentString
+        O << Data64bitsDirective << DoubleToBits(Val) << "\t" << CommentString
           << " double value: " << Val << "\n";
       else if (TD.isBigEndian()) {
-        O << Data32bitsDirective << unsigned(U.UVal >> 32)
+        O << Data32bitsDirective << unsigned(DoubleToBits(Val) >> 32)
           << "\t" << CommentString << " double most significant word "
           << Val << "\n";
-        O << Data32bitsDirective << unsigned(U.UVal)
+        O << Data32bitsDirective << unsigned(DoubleToBits(Val))
           << "\t" << CommentString << " double least significant word "
           << Val << "\n";
       } else {
-        O << Data32bitsDirective << unsigned(U.UVal)
+        O << Data32bitsDirective << unsigned(DoubleToBits(Val))
           << "\t" << CommentString << " double least significant word " << Val
           << "\n";
-        O << Data32bitsDirective << unsigned(U.UVal >> 32)
+        O << Data32bitsDirective << unsigned(DoubleToBits(Val) >> 32)
           << "\t" << CommentString << " double most significant word " << Val
           << "\n";
       }
       return;
     } else {
-      union FU {                            // Abide by C TBAA rules
-        float FVal;
-        int32_t UVal;
-      } U;
-      U.FVal = (float)Val;
-
-      O << Data32bitsDirective << U.UVal << "\t" << CommentString
+      O << Data32bitsDirective << FloatToBits(Val) << "\t" << CommentString
         << " float " << Val << "\n";
       return;
     }