codegen-arm64-test.js

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// Scaffolding for testing arm64 Ion code generation patterns .  See

// codegen-x64-test.js in this directory for more information.

load(libdir + "codegen-test-common.js");

// End of prologue

var arm64_prefix = `

910003fd  mov     x29, sp

910003fc  mov     x28, sp(

f9000bb7  str     x23, \\[x29, #16\\])?

`;

// Start of epilogue

var arm64_suffix = `

f94007fe  ldr     x30, \\[sp, #8\\]

f94003fd  ldr     x29, \\[sp\\]

`;

// For when nothing else applies: `module_text` is the complete source text of

// the module, `export_name` is the name of the function to be tested,

// `expected` is the non-preprocessed pattern, and options is an options bag,

// described above.

function codegenTestARM64_adhoc(module_text, export_name, expected, options = {}) {

    assertEq(hasDisassembler(), true);

    let ins = wasmEvalText(module_text, {}, options.features);

    if (options.instanceBox)

        options.instanceBox.value = ins;

    let output = wasmDis(ins.exports[export_name], {tier:"ion", asString:true});

    const expected_initial = expected;

    if (!options.no_prefix)

        expected = arm64_prefix + '\n' + expected;

    if (!options.no_suffix)

        expected = expected + '\n' + arm64_suffix;

    expected = fixlines(expected);

    const output_matches_expected = output.match(new RegExp(expected)) != null;

    if (!output_matches_expected) {

        print("---- codegen-arm64-test.js: TEST FAILED ----");

    if (options.log && output_matches_expected) {

        print("---- codegen-arm64-test.js: TEST PASSED ----");

    if (options.log || !output_matches_expected) {

        print("---- module text");

        print(module_text);

        print("---- actual");

        print(output);

        print("---- expected (initial)");

        print(expected_initial);

        print("---- expected (as used)");

        print(expected);

        print("----");

    assertEq(output_matches_expected, true);