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changeset 19930:fa11aa10bf2c

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Implement foldStamp for Integer to Float conversions
author Gilles Duboscq <duboscq@ssw.jku.at>
date Wed, 08 Oct 2014 15:27:10 +0200
parents c37e10bb3aa7
children 9aa9db862403
files graal/com.oracle.graal.compiler.common/src/com/oracle/graal/compiler/common/type/IntegerStamp.java
diffstat 1 files changed, 12 insertions(+), 4 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.compiler.common/src/com/oracle/graal/compiler/common/type/IntegerStamp.java	Wed Mar 18 14:36:13 2015 +0100
+++ b/graal/com.oracle.graal.compiler.common/src/com/oracle/graal/compiler/common/type/IntegerStamp.java	Wed Oct 08 15:27:10 2014 +0200
@@ -973,7 +973,9 @@
         public Stamp foldStamp(Stamp input) {
             IntegerStamp stamp = (IntegerStamp) input;
             assert stamp.getBits() == 32;
-            return StampFactory.forKind(Kind.Float);
+            float lowerBound = stamp.lowerBound();
+            float upperBound = stamp.upperBound();
+            return StampFactory.forFloat(Kind.Float, lowerBound, upperBound, true);
         }
     },
 
@@ -989,7 +991,9 @@
         public Stamp foldStamp(Stamp input) {
             IntegerStamp stamp = (IntegerStamp) input;
             assert stamp.getBits() == 64;
-            return StampFactory.forKind(Kind.Float);
+            float lowerBound = stamp.lowerBound();
+            float upperBound = stamp.upperBound();
+            return StampFactory.forFloat(Kind.Float, lowerBound, upperBound, true);
         }
     },
 
@@ -1005,7 +1009,9 @@
         public Stamp foldStamp(Stamp input) {
             IntegerStamp stamp = (IntegerStamp) input;
             assert stamp.getBits() == 32;
-            return StampFactory.forKind(Kind.Double);
+            double lowerBound = stamp.lowerBound();
+            double upperBound = stamp.upperBound();
+            return StampFactory.forFloat(Kind.Double, lowerBound, upperBound, true);
         }
     },
 
@@ -1021,7 +1027,9 @@
         public Stamp foldStamp(Stamp input) {
             IntegerStamp stamp = (IntegerStamp) input;
             assert stamp.getBits() == 64;
-            return StampFactory.forKind(Kind.Double);
+            double lowerBound = stamp.lowerBound();
+            double upperBound = stamp.upperBound();
+            return StampFactory.forFloat(Kind.Double, lowerBound, upperBound, true);
         }
     });
 }