llvm: mirror assertions for bitshift ops

Author: tmarsteel

llvm-backend/src/main/kotlin/io/github/tmarsteel/emerge/backend/llvm/dsl/BasicBlockBuilder.kt

@@ -333,16 +333,22 @@ private open class BasicBlockBuilderImpl<C : LlvmContext, R : LlvmType>(
     }
 
     override fun <T : LlvmIntegerType> shl(value: LlvmValue<T>, shiftAmount: LlvmValue<T>): LlvmValue<T> {
+        assert(value.type == shiftAmount.type)
+
         val shiftInstr = Llvm.LLVMBuildShl(llvmRef, value.raw, shiftAmount.raw, tmpVars.next())
         return LlvmValue(shiftInstr, value.type)
     }
 
     override fun <T : LlvmIntegerType> lshr(value: LlvmValue<T>, shiftAmount: LlvmValue<T>): LlvmValue<T> {
+        assert(value.type == shiftAmount.type)
+
         val shiftInstr = Llvm.LLVMBuildLShr(llvmRef, value.raw, shiftAmount.raw, tmpVars.next())
         return LlvmValue(shiftInstr, value.type)
     }
 
     override fun <T : LlvmIntegerType> ashr(value: LlvmValue<T>, shiftAmount: LlvmValue<T>): LlvmValue<T> {
+        assert(value.type == shiftAmount.type)
+
         val shiftInstr = Llvm.LLVMBuildAShr(llvmRef, value.raw, shiftAmount.raw, tmpVars.next())
         return LlvmValue(shiftInstr, value.type)
     }

llvm-backend/src/main/kotlin/io/github/tmarsteel/emerge/backend/llvm/intrinsics/exception.kt

@@ -240,12 +240,12 @@ internal val writeMemoryAddress = KotlinLlvmFunction.define<EmergeLlvmContext, L
 
         val nibbleCharsGlobal = context.constantString("0123456789abcdef")
 
-        IntProgression.fromClosedRange(
-            rangeStart = EmergeUWordType.getNBitsInContext(context).toInt() - 4,
-            rangeEnd = 0,
+        UIntProgression.fromClosedRange(
+            rangeStart = EmergeUWordType.getNBitsInContext(context).toUInt() - 4u,
+            rangeEnd = 0u,
             step = -4
         ).forEach { shrAmount ->
-            val nibble = and(lshr(address, context.s32(shrAmount)), context.uWord(0b1111u))
+            val nibble = and(lshr(address, context.uWord(shrAmount)), context.uWord(0b1111u))
             writer(
                 getelementptr(nibbleCharsGlobal).index(nibble).get(),
                 context.uWord(1u),