1 files changed, 4 insertions, 10 deletions
diff --git a/glslang/MachineIndependent/Constant.cpp b/glslang/MachineIndependent/Constant.cpp
index e21cf427..8dc04a42 100644
--- a/glslang/MachineIndependent/Constant.cpp
+++ b/glslang/MachineIndependent/Constant.cpp
@@ -599,17 +599,11 @@ TIntermTyped* TIntermConstantUnion::fold(TOperator op, const TType& returnType)
             newConstArray[i].setDConst(log(unionArray[i].getDConst()));
             break;
         case EOpExp2:
-            {
-                const double inv_log2_e = 0.69314718055994530941723212145818;
-                newConstArray[i].setDConst(exp(unionArray[i].getDConst() * inv_log2_e));
-                break;
-            }
+            newConstArray[i].setDConst(exp2(unionArray[i].getDConst()));
+            break;
         case EOpLog2:
-            {
-                const double log2_e = 1.4426950408889634073599246810019;
-                newConstArray[i].setDConst(log2_e * log(unionArray[i].getDConst()));
-                break;
-            }
+            newConstArray[i].setDConst(log2(unionArray[i].getDConst()));
+            break;
         case EOpSqrt:
             newConstArray[i].setDConst(sqrt(unionArray[i].getDConst()));
             break;