mirror of
https://github.com/ziglang/zig.git
synced 2024-12-04 02:48:50 +00:00
5619ce2406
Conflicts:
* doc/langref.html.in
* lib/std/enums.zig
* lib/std/fmt.zig
* lib/std/hash/auto_hash.zig
* lib/std/math.zig
* lib/std/mem.zig
* lib/std/meta.zig
* test/behavior/alignof.zig
* test/behavior/bitcast.zig
* test/behavior/bugs/1421.zig
* test/behavior/cast.zig
* test/behavior/ptrcast.zig
* test/behavior/type_info.zig
* test/behavior/vector.zig
Master branch added `try` to a bunch of testing function calls, and some
lines also had changed how to refer to the native architecture and other
`@import("builtin")` stuff.
110 lines
2.1 KiB
Zig
110 lines
2.1 KiB
Zig
const std = @import("std");
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const expect = std.testing.expect;
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const is_x86_64_linux = std.Target.current.cpu.arch == .x86_64 and std.Target.current.os.tag == .linux;
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comptime {
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if (is_x86_64_linux) {
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asm (
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\\.globl this_is_my_alias;
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\\.type this_is_my_alias, @function;
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\\.set this_is_my_alias, derp;
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);
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}
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}
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test "module level assembly" {
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if (is_x86_64_linux) {
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try expect(this_is_my_alias() == 1234);
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}
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}
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test "output constraint modifiers" {
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// This is only testing compilation.
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var a: u32 = 3;
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asm volatile (""
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: [_] "=m,r" (a)
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:
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: ""
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);
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asm volatile (""
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: [_] "=r,m" (a)
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:
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: ""
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);
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}
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test "alternative constraints" {
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// Make sure we allow commas as a separator for alternative constraints.
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var a: u32 = 3;
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asm volatile (""
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: [_] "=r,m" (a)
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: [_] "r,m" (a)
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: ""
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);
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}
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test "sized integer/float in asm input" {
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asm volatile (""
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:
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: [_] "m" (@as(usize, 3))
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: ""
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);
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asm volatile (""
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:
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: [_] "m" (@as(i15, -3))
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: ""
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);
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asm volatile (""
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:
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: [_] "m" (@as(u3, 3))
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: ""
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);
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asm volatile (""
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:
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: [_] "m" (@as(i3, 3))
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: ""
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);
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asm volatile (""
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:
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: [_] "m" (@as(u121, 3))
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: ""
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);
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asm volatile (""
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:
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: [_] "m" (@as(i121, 3))
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: ""
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);
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asm volatile (""
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:
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: [_] "m" (@as(f32, 3.17))
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: ""
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);
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asm volatile (""
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:
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: [_] "m" (@as(f64, 3.17))
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: ""
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);
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}
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test "struct/array/union types as input values" {
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asm volatile (""
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:
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: [_] "m" (@as([1]u32, undefined))
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); // fails
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asm volatile (""
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:
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: [_] "m" (@as(struct { x: u32, y: u8 }, undefined))
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); // fails
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asm volatile (""
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:
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: [_] "m" (@as(union { x: u32, y: u8 }, undefined))
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); // fails
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}
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extern fn this_is_my_alias() i32;
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export fn derp() i32 {
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return 1234;
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}
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