From d5760a6e10a17d98ab3f7ae439c2387f371f605c Mon Sep 17 00:00:00 2001 From: Michael Williamson Date: Sun, 11 Jun 2023 23:32:15 +0100 Subject: Compile discard instruction to LLVM IR --- .../backends/llvm/LlvmCompilerDiscardTests.java | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 src/test/java/org/shedlang/compiler/backends/llvm/LlvmCompilerDiscardTests.java (limited to 'src/test/java') diff --git a/src/test/java/org/shedlang/compiler/backends/llvm/LlvmCompilerDiscardTests.java b/src/test/java/org/shedlang/compiler/backends/llvm/LlvmCompilerDiscardTests.java new file mode 100644 index 00000000..c263caa1 --- /dev/null +++ b/src/test/java/org/shedlang/compiler/backends/llvm/LlvmCompilerDiscardTests.java @@ -0,0 +1,24 @@ +package org.shedlang.compiler.backends.llvm; + +import org.junit.jupiter.api.Test; +import org.shedlang.compiler.backends.llvm.ir.ast.LlvmIr; +import org.shedlang.compiler.stackir.instructions.Instructions; + +import static org.shedlang.compiler.backends.llvm.ir.ast.LlvmIrMatchers.isLlvmOperandInt; +import static org.zwobble.precisely.AssertThat.assertThat; +import static org.zwobble.precisely.Matchers.isSequence; + +public class LlvmCompilerDiscardTests { + @Test + public void discardRemovesTopElementFromStack() { + var instruction = Instructions.discard(); + var context = LlvmCompilerContext.EMPTY + .push(LlvmIr.operandInt(1)) + .push(LlvmIr.operandInt(2)); + + var result = LlvmCompiler.compileInstruction(instruction, context); + + assertThat(result.instructions(), isSequence()); + assertThat(result.stack(), isSequence(isLlvmOperandInt(1))); + } +} -- cgit v1.2.3