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compiler-rt: add __floatsitf

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This commit is contained in:
LemonBoy 2019-05-09 00:25:50 +02:00
parent 383b8a032e
commit 4208fa9ad9
2 changed files with 20 additions and 0 deletions
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1
std/special/compiler_rt.zig
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@ -67,6 +67,7 @@ comptime {
@export("__floatsidf", @import("compiler_rt/floatsiXf.zig").__floatsidf, linkage);
@export("__floatsisf", @import("compiler_rt/floatsiXf.zig").__floatsisf, linkage);
@export("__floatdidf", @import("compiler_rt/floatdidf.zig").__floatdidf, linkage);
@export("__floatsitf", @import("compiler_rt/floatsiXf.zig").__floatsitf, linkage);
@export("__floatunsidf", @import("compiler_rt/floatunsidf.zig").__floatunsidf, linkage);
@export("__floatundidf", @import("compiler_rt/floatundidf.zig").__floatundidf, linkage);

19
std/special/compiler_rt/floatsiXf.zig
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@ -63,6 +63,16 @@ pub extern fn __floatsidf(arg: i32) f64 {
return @inlineCall(floatsiXf, f64, arg);
}
pub extern fn __floatsitf(arg: i32) f128 {
@setRuntimeSafety(builtin.is_test);
return @inlineCall(floatsiXf, f128, arg);
}
fn test_one_floatsitf(a: i32, expected: u128) void {
const r = __floatsitf(a);
std.testing.expect(@bitCast(u128, r) == expected);
}
fn test_one_floatsidf(a: i32, expected: u64) void {
const r = __floatsidf(a);
std.testing.expect(@bitCast(u64, r) == expected);
@ -88,3 +98,12 @@ test "floatsisf" {
test_one_floatsisf(0x7FFFFFFF, 0x4f000000);
test_one_floatsisf(@bitCast(i32, @intCast(u32, 0x80000000)), 0xcf000000);
}
test "floatsitf" {
test_one_floatsitf(0, 0);
test_one_floatsitf(0x7FFFFFFF, 0x401dfffffffc00000000000000000000);
test_one_floatsitf(0x12345678, 0x401b2345678000000000000000000000);
test_one_floatsitf(-0x12345678, 0xc01b2345678000000000000000000000);
test_one_floatsitf(@bitCast(i32, @intCast(u32, 0xffffffff)), 0xbfff0000000000000000000000000000);
test_one_floatsitf(@bitCast(i32, @intCast(u32, 0x80000000)), 0xc01e0000000000000000000000000000);
}