free requires LHS expression in model builder

[Stephen Siegel]

The model builder expects the argument to free to be a left hand side expression. Here it fails on an expression of the form "free(&a[0])" (test multierr). There is no reason for this restriction.

java.lang.RuntimeException: The buffer of an allocate statement must be a left-value.
	at edu.udel.cis.vsl.tass.front.minimp.ModelBuilder.processDeallocateStmt(ModelBuilder.java:842)
	at edu.udel.cis.vsl.tass.front.minimp.ModelBuilder.processStatement(ModelBuilder.java:779)
	at edu.udel.cis.vsl.tass.front.minimp.ModelBuilder.processStatementList(ModelBuilder.java:725)
	at edu.udel.cis.vsl.tass.front.minimp.ModelBuilder.processFunctionBody(ModelBuilder.java:681)
	at edu.udel.cis.vsl.tass.front.minimp.ModelBuilder.processFunctions(ModelBuilder.java:652)
	at edu.udel.cis.vsl.tass.front.minimp.ModelBuilder.processAST(ModelBuilder.java:330)
	at edu.udel.cis.vsl.tass.front.minimp.ModelBuilder.buildModel(ModelBuilder.java:322)
	at edu.udel.cis.vsl.tass.front.minimp.ModelExtractor.extract(ModelExtractor.java:29)
	at edu.udel.cis.vsl.tass.front.minimp.ModelExtractor.extractModel(ModelExtractor.java:53)
	at multierr.MultiErrTest.multiErrorTest(MultiErrTest.java:31)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
	at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

[zirkel]

Done. Free is now part of stdlib