8238d4b335
Commit052079c994surfaced two issues with the generated C code: - renderInt128() contained a seemingly unnecessary assertion to verify that the high 64 bits of the number were nonzero, dating back to9bf1681990. I removed it. - renderValue() didn't have any special handling for undefined structs, falling back to printing "{}" which generated invalid expressions such as "return {}" for functions returning structs, whereas "return (S){}" is the correct form. I changed it accordingly. At the same time I'm reenabling the relevant tests.
70 lines
2.6 KiB
Zig
70 lines
2.6 KiB
Zig
const std = @import("std");
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const expect = std.testing.expect;
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const maxInt = std.math.maxInt;
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const minInt = std.math.minInt;
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const builtin = @import("builtin");
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test "uint128" {
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if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
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var buff: u128 = maxInt(u128);
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try expect(buff == maxInt(u128));
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const magic_const = 0x12341234123412341234123412341234;
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buff = magic_const;
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try expect(buff == magic_const);
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try expect(magic_const == 0x12341234123412341234123412341234);
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buff = 0;
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try expect(buff == @as(u128, 0));
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}
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test "undefined 128 bit int" {
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if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
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@setRuntimeSafety(true);
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// TODO implement @setRuntimeSafety in stage2
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if (builtin.zig_backend != .stage1 and builtin.mode != .Debug and builtin.mode != .ReleaseSafe) {
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return error.SkipZigTest;
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}
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var undef: u128 = undefined;
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var undef_signed: i128 = undefined;
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try expect(undef == 0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa and @bitCast(u128, undef_signed) == undef);
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}
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test "int128" {
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if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
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var buff: i128 = -1;
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try expect(buff < 0 and (buff + 1) == 0);
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try expect(@intCast(i8, buff) == @as(i8, -1));
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buff = minInt(i128);
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try expect(buff < 0);
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buff = -0x12341234123412341234123412341234;
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try expect(-buff == 0x12341234123412341234123412341234);
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}
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test "truncate int128" {
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if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
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var buff: u128 = maxInt(u128);
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try expect(@truncate(u64, buff) == maxInt(u64));
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}
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