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29cfd47d65
Instead of using `zig test` to build a special version of the compiler that runs all the test-cases, the zig build system is now used as much as possible - all with the basic steps found in the standard library. For incremental compilation tests (the ones that look like foo.0.zig, foo.1.zig, foo.2.zig, etc.), a special version of the compiler is compiled into a utility executable called "check-case" which checks exactly one sequence of incremental updates in an independent subprocess. Previously, all incremental and non-incremental test cases were done in the same test runner process. The compile error checking code is now simpler, but also a bit rudimentary, and so it additionally makes sure that the actual compile errors do not include *extra* messages, and it makes sure that the actual compile errors output in the same order as expected. It is also based on the "ends-with" property of each line rather than the previous logic, which frankly I didn't want to touch with a ten-meter pole. The compile error test cases have been updated to pass in light of these differences. Previously, 'error' mode with 0 compile errors was used to shoehorn in a different kind of test-case - one that only checks if a piece of code compiles without errors. Now there is a 'compile' mode of test-cases, and 'error' must be only used when there are greater than 0 errors. link test cases are updated to omit the target object format argument when calling checkObject since that is no longer needed. The test/stage2 directory is removed; the 2 files within are moved to be directly in the test/ directory.
51 lines
1.9 KiB
Zig
51 lines
1.9 KiB
Zig
const std = @import("std");
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pub const requires_stage2 = true;
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pub fn build(b: *std.Build) void {
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const test_step = b.step("test", "Test it");
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b.default_step = test_step;
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add(b, test_step, .Debug);
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add(b, test_step, .ReleaseFast);
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add(b, test_step, .ReleaseSmall);
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add(b, test_step, .ReleaseSafe);
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}
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fn add(b: *std.Build, test_step: *std.Build.Step, optimize: std.builtin.OptimizeMode) void {
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const lib = b.addSharedLibrary(.{
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.name = "lib",
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.root_source_file = .{ .path = "lib.zig" },
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.target = .{ .cpu_arch = .wasm32, .os_tag = .freestanding },
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.optimize = optimize,
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});
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lib.use_llvm = false;
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lib.use_lld = false;
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lib.strip = false;
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lib.stack_size = std.wasm.page_size * 2; // set an explicit stack size
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lib.install();
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const check_lib = lib.checkObject();
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// ensure global exists and its initial value is equal to explitic stack size
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check_lib.checkStart("Section global");
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check_lib.checkNext("entries 1");
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check_lib.checkNext("type i32"); // on wasm32 the stack pointer must be i32
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check_lib.checkNext("mutable true"); // must be able to mutate the stack pointer
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check_lib.checkNext("i32.const {stack_pointer}");
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check_lib.checkComputeCompare("stack_pointer", .{ .op = .eq, .value = .{ .literal = lib.stack_size.? } });
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// validate memory section starts after virtual stack
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check_lib.checkNext("Section data");
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check_lib.checkNext("i32.const {data_start}");
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check_lib.checkComputeCompare("data_start", .{ .op = .eq, .value = .{ .variable = "stack_pointer" } });
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// validate the name of the stack pointer
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check_lib.checkStart("Section custom");
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check_lib.checkNext("type global");
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check_lib.checkNext("names 1");
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check_lib.checkNext("index 0");
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check_lib.checkNext("name __stack_pointer");
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test_step.dependOn(&check_lib.step);
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}
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