Simplify truncation to signed integer (cast already truncates).

Author: woess

wasm/src/org.graalvm.wasm/src/org/graalvm/wasm/nodes/WasmFunctionNode.java

@@ -4104,7 +4104,7 @@ private void i32_trunc_f32_s(VirtualFrame frame, int stackPointer) {
             enterErrorBranch();
             throw WasmException.create(Failure.INT_OVERFLOW);
         }
-        final int result = (int) WasmMath.truncFloatToLong(x);
+        final int result = (int) x;
         pushInt(frame, stackPointer - 1, result);
     }
 
@@ -4130,7 +4130,7 @@ private void i32_trunc_f64_s(VirtualFrame frame, int stackPointer) {
             enterErrorBranch();
             throw WasmException.create(Failure.INT_OVERFLOW);
         }
-        final int result = (int) WasmMath.truncDoubleToLong(x);
+        final int result = (int) x;
         pushInt(frame, stackPointer - 1, result);
     }
 
@@ -4149,7 +4149,7 @@ private void i32_trunc_f64_u(VirtualFrame frame, int stackPointer) {
 
     private static void i32_trunc_sat_f32_s(VirtualFrame frame, int stackPointer) {
         final float x = popFloat(frame, stackPointer - 1);
-        final int result = (int) ExactMath.truncate(x);
+        final int result = (int) x;
         pushInt(frame, stackPointer - 1, result);
     }
 
@@ -4168,7 +4168,7 @@ private static void i32_trunc_sat_f32_u(VirtualFrame frame, int stackPointer) {
 
     private static void i32_trunc_sat_f64_s(VirtualFrame frame, int stackPointer) {
         final double x = popDouble(frame, stackPointer - 1);
-        final int result = (int) ExactMath.truncate(x);
+        final int result = (int) x;
         pushInt(frame, stackPointer - 1, result);
     }
 
@@ -4205,7 +4205,7 @@ private void i64_trunc_f32_s(VirtualFrame frame, int stackPointer) {
             enterErrorBranch();
             throw WasmException.create(Failure.INT_OVERFLOW);
         }
-        final long result = WasmMath.truncFloatToLong(x);
+        final long result = (long) x;
         pushLong(frame, stackPointer - 1, result);
     }
 
@@ -4231,7 +4231,7 @@ private void i64_trunc_f64_s(VirtualFrame frame, int stackPointer) {
             enterErrorBranch();
             throw WasmException.create(Failure.INT_OVERFLOW);
         }
-        final long result = WasmMath.truncDoubleToLong(x);
+        final long result = (long) x;
         pushLong(frame, stackPointer - 1, result);
     }
 
@@ -4250,7 +4250,7 @@ private void i64_trunc_f64_u(VirtualFrame frame, int stackPointer) {
 
     private static void i64_trunc_sat_f32_s(VirtualFrame frame, int stackPointer) {
         final float x = popFloat(frame, stackPointer - 1);
-        final long result = (long) ExactMath.truncate(x);
+        final long result = (long) x;
         pushLong(frame, stackPointer - 1, result);
     }
 
@@ -4267,7 +4267,7 @@ private static void i64_trunc_sat_f32_u(VirtualFrame frame, int stackPointer) {
 
     private static void i64_trunc_sat_f64_s(VirtualFrame frame, int stackPointer) {
         final double x = popDouble(frame, stackPointer - 1);
-        final long result = (long) ExactMath.truncate(x);
+        final long result = (long) x;
         pushLong(frame, stackPointer - 1, result);
     }