diff options
Diffstat (limited to 'src/proguard/evaluation/value/ParticularFloatValue.java')
-rw-r--r-- | src/proguard/evaluation/value/ParticularFloatValue.java | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/src/proguard/evaluation/value/ParticularFloatValue.java b/src/proguard/evaluation/value/ParticularFloatValue.java index 59e4357..cbdde31 100644 --- a/src/proguard/evaluation/value/ParticularFloatValue.java +++ b/src/proguard/evaluation/value/ParticularFloatValue.java @@ -2,7 +2,7 @@ * ProGuard -- shrinking, optimization, obfuscation, and preverification * of Java bytecode. * - * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu) + * Copyright (c) 2002-2013 Eric Lafortune (eric@graphics.cornell.edu) * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free @@ -79,17 +79,23 @@ final class ParticularFloatValue extends SpecificFloatValue public FloatValue add(FloatValue other) { - return value == 0.0 ? other : other.add(this); + // Careful: -0.0 + 0.0 == 0.0 + //return value == 0.0 ? other : other.add(this); + return other.add(this); } public FloatValue subtract(FloatValue other) { - return value == 0.0 ? other.negate() : other.subtractFrom(this); + // Careful: -0.0 + 0.0 == 0.0 + //return value == 0.0 ? other.negate() : other.subtractFrom(this); + return other.subtractFrom(this); } public FloatValue subtractFrom(FloatValue other) { - return value == 0.0 ? other : other.subtract(this); + // Careful: -0.0 + 0.0 == 0.0 + //return value == 0.0 ? other : other.subtract(this); + return other.subtract(this); } public FloatValue multiply(FloatValue other) @@ -128,7 +134,10 @@ final class ParticularFloatValue extends SpecificFloatValue public FloatValue generalize(ParticularFloatValue other) { - return this.value == other.value ? this : ValueFactory.FLOAT_VALUE; + // Also handle NaN and Infinity. + return Float.floatToRawIntBits(this.value) == + Float.floatToRawIntBits(other.value) ? + this : ValueFactory.FLOAT_VALUE; } public FloatValue add(ParticularFloatValue other) @@ -191,8 +200,10 @@ final class ParticularFloatValue extends SpecificFloatValue public boolean equals(Object object) { + // Also handle NaN and Infinity. return super.equals(object) && - this.value == ((ParticularFloatValue)object).value; + Float.floatToIntBits(this.value) == + Float.floatToIntBits(((ParticularFloatValue)object).value); } |