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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 __eqdf2 = @import("./cmpdf2.zig").__eqdf2;
const __ledf2 = @import("./cmpdf2.zig").__ledf2;
const __ltdf2 = @import("./cmpdf2.zig").__ltdf2;
const __nedf2 = @import("./cmpdf2.zig").__nedf2;
const __gedf2 = @import("./gedf2.zig").__gedf2;
const __gtdf2 = @import("./gedf2.zig").__gtdf2;
const __unorddf2 = @import("./unorddf2.zig").__unorddf2;
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 (__eqdf2(vector.a, vector.b) != vector.eqReference) {
return false;
}
if (__gedf2(vector.a, vector.b) != vector.geReference) {
return false;
}
if (__gtdf2(vector.a, vector.b) != vector.gtReference) {
return false;
}
if (__ledf2(vector.a, vector.b) != vector.leReference) {
return false;
}
if (__ltdf2(vector.a, vector.b) != vector.ltReference) {
return false;
}
if (__nedf2(vector.a, vector.b) != vector.neReference) {
return false;
}
if (__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..], 0..) |arg_i, i| {
for (arguments[0..], 0..) |arg_j, j| {
vectors[(i * arguments.len) + j] = generateVector(arg_i, arg_j);
}
}
break :init vectors;
};
test "compare f64" {
for (test_vectors) |vector| {
try std.testing.expect(test__cmpdf2(vector));
}
}
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