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compiler-rt: Add __modsi3, __umodsi3

master
LemonBoy 2019-05-03 15:51:11 +02:00 committed by Andrew Kelley
parent 1be4e87f0b
commit 2f3b461703
1 changed files with 185 additions and 0 deletions
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185
std/special/compiler_rt.zig
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@ -106,7 +106,9 @@ comptime {
@export("__divdi3", __divdi3, linkage);
@export("__udivsi3", __udivsi3, linkage);
@export("__udivdi3", __udivdi3, linkage);
@export("__modsi3", __modsi3, linkage);
@export("__moddi3", __moddi3, linkage);
@export("__umodsi3", __umodsi3, linkage);
@export("__umoddi3", __umoddi3, linkage);
@export("__divmodsi4", __divmodsi4, linkage);
@export("__udivmodsi4", __udivmodsi4, linkage);
@ -664,6 +666,18 @@ extern fn __udivsi3(n: u32, d: u32) u32 {
return q;
}
extern fn __modsi3(n: i32, d: i32) i32 {
@setRuntimeSafety(is_test);
return n -% __divsi3(n, d) *% d;
}
extern fn __umodsi3(n: u32, d: u32) u32 {
@setRuntimeSafety(is_test);
return n -% __udivsi3(n, d) *% d;
}
test "test_umoddi3" {
test_one_umoddi3(0, 1, 0);
test_one_umoddi3(2, 1, 0);
@ -1455,3 +1469,174 @@ fn test_one_moddi3(a: i64, b: i64, expected_r: i64) void {
const r: i64 = __moddi3(a, b);
testing.expect(r == expected_r);
}
test "test_modsi3" {
const cases = [][3]i32{
[]i32{0, 1, 0},
[]i32{0, -1, 0},
[]i32{5, 3, 2},
[]i32{5, -3, 2},
[]i32{-5, 3, -2},
[]i32{-5, -3, -2},
[]i32{@bitCast(i32, @intCast(u32, 0x80000000)), 1, 0x0},
[]i32{@bitCast(i32, @intCast(u32, 0x80000000)), 2, 0x0},
[]i32{@bitCast(i32, @intCast(u32, 0x80000000)), -2, 0x0},
[]i32{@bitCast(i32, @intCast(u32, 0x80000000)), 3, -2},
[]i32{@bitCast(i32, @intCast(u32, 0x80000000)), -3, -2},
};
for (cases) |case| {
test_one_modsi3(case[0], case[1], case[2]);
}
}
fn test_one_modsi3(a: i32, b: i32, expected_r: i32) void {
const r: i32 = __modsi3(a, b);
testing.expect(r == expected_r);
}
test "test_umodsi3" {
const cases = [][3]u32{
[]u32{0x00000000, 0x00000001, 0x00000000},
[]u32{0x00000000, 0x00000002, 0x00000000},
[]u32{0x00000000, 0x00000003, 0x00000000},
[]u32{0x00000000, 0x00000010, 0x00000000},
[]u32{0x00000000, 0x078644FA, 0x00000000},
[]u32{0x00000000, 0x0747AE14, 0x00000000},
[]u32{0x00000000, 0x7FFFFFFF, 0x00000000},
[]u32{0x00000000, 0x80000000, 0x00000000},
[]u32{0x00000000, 0xFFFFFFFD, 0x00000000},
[]u32{0x00000000, 0xFFFFFFFE, 0x00000000},
[]u32{0x00000000, 0xFFFFFFFF, 0x00000000},
[]u32{0x00000001, 0x00000001, 0x00000000},
[]u32{0x00000001, 0x00000002, 0x00000001},
[]u32{0x00000001, 0x00000003, 0x00000001},
[]u32{0x00000001, 0x00000010, 0x00000001},
[]u32{0x00000001, 0x078644FA, 0x00000001},
[]u32{0x00000001, 0x0747AE14, 0x00000001},
[]u32{0x00000001, 0x7FFFFFFF, 0x00000001},
[]u32{0x00000001, 0x80000000, 0x00000001},
[]u32{0x00000001, 0xFFFFFFFD, 0x00000001},
[]u32{0x00000001, 0xFFFFFFFE, 0x00000001},
[]u32{0x00000001, 0xFFFFFFFF, 0x00000001},
[]u32{0x00000002, 0x00000001, 0x00000000},
[]u32{0x00000002, 0x00000002, 0x00000000},
[]u32{0x00000002, 0x00000003, 0x00000002},
[]u32{0x00000002, 0x00000010, 0x00000002},
[]u32{0x00000002, 0x078644FA, 0x00000002},
[]u32{0x00000002, 0x0747AE14, 0x00000002},
[]u32{0x00000002, 0x7FFFFFFF, 0x00000002},
[]u32{0x00000002, 0x80000000, 0x00000002},
[]u32{0x00000002, 0xFFFFFFFD, 0x00000002},
[]u32{0x00000002, 0xFFFFFFFE, 0x00000002},
[]u32{0x00000002, 0xFFFFFFFF, 0x00000002},
[]u32{0x00000003, 0x00000001, 0x00000000},
[]u32{0x00000003, 0x00000002, 0x00000001},
[]u32{0x00000003, 0x00000003, 0x00000000},
[]u32{0x00000003, 0x00000010, 0x00000003},
[]u32{0x00000003, 0x078644FA, 0x00000003},
[]u32{0x00000003, 0x0747AE14, 0x00000003},
[]u32{0x00000003, 0x7FFFFFFF, 0x00000003},
[]u32{0x00000003, 0x80000000, 0x00000003},
[]u32{0x00000003, 0xFFFFFFFD, 0x00000003},
[]u32{0x00000003, 0xFFFFFFFE, 0x00000003},
[]u32{0x00000003, 0xFFFFFFFF, 0x00000003},
[]u32{0x00000010, 0x00000001, 0x00000000},
[]u32{0x00000010, 0x00000002, 0x00000000},
[]u32{0x00000010, 0x00000003, 0x00000001},
[]u32{0x00000010, 0x00000010, 0x00000000},
[]u32{0x00000010, 0x078644FA, 0x00000010},
[]u32{0x00000010, 0x0747AE14, 0x00000010},
[]u32{0x00000010, 0x7FFFFFFF, 0x00000010},
[]u32{0x00000010, 0x80000000, 0x00000010},
[]u32{0x00000010, 0xFFFFFFFD, 0x00000010},
[]u32{0x00000010, 0xFFFFFFFE, 0x00000010},
[]u32{0x00000010, 0xFFFFFFFF, 0x00000010},
[]u32{0x078644FA, 0x00000001, 0x00000000},
[]u32{0x078644FA, 0x00000002, 0x00000000},
[]u32{0x078644FA, 0x00000003, 0x00000000},
[]u32{0x078644FA, 0x00000010, 0x0000000A},
[]u32{0x078644FA, 0x078644FA, 0x00000000},
[]u32{0x078644FA, 0x0747AE14, 0x003E96E6},
[]u32{0x078644FA, 0x7FFFFFFF, 0x078644FA},
[]u32{0x078644FA, 0x80000000, 0x078644FA},
[]u32{0x078644FA, 0xFFFFFFFD, 0x078644FA},
[]u32{0x078644FA, 0xFFFFFFFE, 0x078644FA},
[]u32{0x078644FA, 0xFFFFFFFF, 0x078644FA},
[]u32{0x0747AE14, 0x00000001, 0x00000000},
[]u32{0x0747AE14, 0x00000002, 0x00000000},
[]u32{0x0747AE14, 0x00000003, 0x00000002},
[]u32{0x0747AE14, 0x00000010, 0x00000004},
[]u32{0x0747AE14, 0x078644FA, 0x0747AE14},
[]u32{0x0747AE14, 0x0747AE14, 0x00000000},
[]u32{0x0747AE14, 0x7FFFFFFF, 0x0747AE14},
[]u32{0x0747AE14, 0x80000000, 0x0747AE14},
[]u32{0x0747AE14, 0xFFFFFFFD, 0x0747AE14},
[]u32{0x0747AE14, 0xFFFFFFFE, 0x0747AE14},
[]u32{0x0747AE14, 0xFFFFFFFF, 0x0747AE14},
[]u32{0x7FFFFFFF, 0x00000001, 0x00000000},
[]u32{0x7FFFFFFF, 0x00000002, 0x00000001},
[]u32{0x7FFFFFFF, 0x00000003, 0x00000001},
[]u32{0x7FFFFFFF, 0x00000010, 0x0000000F},
[]u32{0x7FFFFFFF, 0x078644FA, 0x00156B65},
[]u32{0x7FFFFFFF, 0x0747AE14, 0x043D70AB},
[]u32{0x7FFFFFFF, 0x7FFFFFFF, 0x00000000},
[]u32{0x7FFFFFFF, 0x80000000, 0x7FFFFFFF},
[]u32{0x7FFFFFFF, 0xFFFFFFFD, 0x7FFFFFFF},
[]u32{0x7FFFFFFF, 0xFFFFFFFE, 0x7FFFFFFF},
[]u32{0x7FFFFFFF, 0xFFFFFFFF, 0x7FFFFFFF},
[]u32{0x80000000, 0x00000001, 0x00000000},
[]u32{0x80000000, 0x00000002, 0x00000000},
[]u32{0x80000000, 0x00000003, 0x00000002},
[]u32{0x80000000, 0x00000010, 0x00000000},
[]u32{0x80000000, 0x078644FA, 0x00156B66},
[]u32{0x80000000, 0x0747AE14, 0x043D70AC},
[]u32{0x80000000, 0x7FFFFFFF, 0x00000001},
[]u32{0x80000000, 0x80000000, 0x00000000},
[]u32{0x80000000, 0xFFFFFFFD, 0x80000000},
[]u32{0x80000000, 0xFFFFFFFE, 0x80000000},
[]u32{0x80000000, 0xFFFFFFFF, 0x80000000},
[]u32{0xFFFFFFFD, 0x00000001, 0x00000000},
[]u32{0xFFFFFFFD, 0x00000002, 0x00000001},
[]u32{0xFFFFFFFD, 0x00000003, 0x00000001},
[]u32{0xFFFFFFFD, 0x00000010, 0x0000000D},
[]u32{0xFFFFFFFD, 0x078644FA, 0x002AD6C9},
[]u32{0xFFFFFFFD, 0x0747AE14, 0x01333341},
[]u32{0xFFFFFFFD, 0x7FFFFFFF, 0x7FFFFFFE},
[]u32{0xFFFFFFFD, 0x80000000, 0x7FFFFFFD},
[]u32{0xFFFFFFFD, 0xFFFFFFFD, 0x00000000},
[]u32{0xFFFFFFFD, 0xFFFFFFFE, 0xFFFFFFFD},
[]u32{0xFFFFFFFD, 0xFFFFFFFF, 0xFFFFFFFD},
[]u32{0xFFFFFFFE, 0x00000001, 0x00000000},
[]u32{0xFFFFFFFE, 0x00000002, 0x00000000},
[]u32{0xFFFFFFFE, 0x00000003, 0x00000002},
[]u32{0xFFFFFFFE, 0x00000010, 0x0000000E},
[]u32{0xFFFFFFFE, 0x078644FA, 0x002AD6CA},
[]u32{0xFFFFFFFE, 0x0747AE14, 0x01333342},
[]u32{0xFFFFFFFE, 0x7FFFFFFF, 0x00000000},
[]u32{0xFFFFFFFE, 0x80000000, 0x7FFFFFFE},
[]u32{0xFFFFFFFE, 0xFFFFFFFD, 0x00000001},
[]u32{0xFFFFFFFE, 0xFFFFFFFE, 0x00000000},
[]u32{0xFFFFFFFE, 0xFFFFFFFF, 0xFFFFFFFE},
[]u32{0xFFFFFFFF, 0x00000001, 0x00000000},
[]u32{0xFFFFFFFF, 0x00000002, 0x00000001},
[]u32{0xFFFFFFFF, 0x00000003, 0x00000000},
[]u32{0xFFFFFFFF, 0x00000010, 0x0000000F},
[]u32{0xFFFFFFFF, 0x078644FA, 0x002AD6CB},
[]u32{0xFFFFFFFF, 0x0747AE14, 0x01333343},
[]u32{0xFFFFFFFF, 0x7FFFFFFF, 0x00000001},
[]u32{0xFFFFFFFF, 0x80000000, 0x7FFFFFFF},
[]u32{0xFFFFFFFF, 0xFFFFFFFD, 0x00000002},
[]u32{0xFFFFFFFF, 0xFFFFFFFE, 0x00000001},
[]u32{0xFFFFFFFF, 0xFFFFFFFF, 0x00000000}
};
for (cases) |case| {
test_one_umodsi3(case[0], case[1], case[2]);
}
}
fn test_one_umodsi3(a: u32, b: u32, expected_r: u32) void {
const r: u32 = __umodsi3(a, b);
testing.expect(r == expected_r);
}