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