102 lines
2.7 KiB
Zig
102 lines
2.7 KiB
Zig
// Ported from:
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//
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// https://github.com/llvm/llvm-project/commit/d674d96bc56c0f377879d01c9d8dfdaaa7859cdb/compiler-rt/test/builtins/Unit/comparedf2_test.c
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const std = @import("std");
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const builtin = @import("builtin");
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const is_test = builtin.is_test;
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const comparedf2 = @import("compareXf2.zig");
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const TestVector = struct {
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a: f64,
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b: f64,
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eqReference: c_int,
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geReference: c_int,
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gtReference: c_int,
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leReference: c_int,
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ltReference: c_int,
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neReference: c_int,
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unReference: c_int,
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};
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fn test__cmpdf2(vector: TestVector) bool {
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if (comparedf2.__eqdf2(vector.a, vector.b) != vector.eqReference) {
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return false;
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}
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if (comparedf2.__gedf2(vector.a, vector.b) != vector.geReference) {
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return false;
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}
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if (comparedf2.__gtdf2(vector.a, vector.b) != vector.gtReference) {
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return false;
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}
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if (comparedf2.__ledf2(vector.a, vector.b) != vector.leReference) {
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return false;
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}
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if (comparedf2.__ltdf2(vector.a, vector.b) != vector.ltReference) {
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return false;
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}
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if (comparedf2.__nedf2(vector.a, vector.b) != vector.neReference) {
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return false;
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}
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if (comparedf2.__unorddf2(vector.a, vector.b) != vector.unReference) {
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return false;
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}
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return true;
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}
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const arguments = [_]f64{
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std.math.nan(f64),
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-std.math.inf(f64),
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-0x1.fffffffffffffp1023,
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-0x1.0000000000001p0 - 0x1.0000000000000p0,
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-0x1.fffffffffffffp-1,
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-0x1.0000000000000p-1022,
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-0x0.fffffffffffffp-1022,
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-0x0.0000000000001p-1022,
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-0.0,
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0.0,
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0x0.0000000000001p-1022,
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0x0.fffffffffffffp-1022,
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0x1.0000000000000p-1022,
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0x1.fffffffffffffp-1,
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0x1.0000000000000p0,
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0x1.0000000000001p0,
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0x1.fffffffffffffp1023,
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std.math.inf(f64),
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};
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fn generateVector(comptime a: f64, comptime b: f64) TestVector {
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const leResult = if (a < b) -1 else if (a == b) 0 else 1;
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const geResult = if (a > b) 1 else if (a == b) 0 else -1;
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const unResult = if (a != a or b != b) 1 else 0;
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return TestVector{
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.a = a,
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.b = b,
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.eqReference = leResult,
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.geReference = geResult,
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.gtReference = geResult,
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.leReference = leResult,
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.ltReference = leResult,
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.neReference = leResult,
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.unReference = unResult,
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};
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}
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const test_vectors = init: {
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@setEvalBranchQuota(10000);
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var vectors: [arguments.len * arguments.len]TestVector = undefined;
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for (arguments[0..]) |arg_i, i| {
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for (arguments[0..]) |arg_j, j| {
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vectors[(i * arguments.len) + j] = generateVector(arg_i, arg_j);
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}
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}
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break :init vectors;
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};
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test "compare f64" {
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for (test_vectors) |vector, i| {
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std.testing.expect(test__cmpdf2(vector));
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}
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}
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