mirror of
https://github.com/ziglang/zig.git
synced 2024-11-13 23:52:57 +00:00
142471fcc4
Introduce the concept of "target query" and "resolved target". A target query is what the user specifies, with some things left to default. A resolved target has the default things discovered and populated. In the future, std.zig.CrossTarget will be rename to std.Target.Query. Introduces `std.Build.resolveTargetQuery` to get from one to the other. The concept of `main_mod_path` is gone, no longer supported. You have to put the root source file at the module root now. * remove deprecated API * update build.zig for the breaking API changes in this branch * move std.Build.Step.Compile.BuildId to std.zig.BuildId * add more options to std.Build.ExecutableOptions, std.Build.ObjectOptions, std.Build.SharedLibraryOptions, std.Build.StaticLibraryOptions, and std.Build.TestOptions. * remove `std.Build.constructCMacro`. There is no use for this API. * deprecate `std.Build.Step.Compile.defineCMacro`. Instead, `std.Build.Module.addCMacro` is provided. - remove `std.Build.Step.Compile.defineCMacroRaw`. * deprecate `std.Build.Step.Compile.linkFrameworkNeeded` - use `std.Build.Module.linkFramework` * deprecate `std.Build.Step.Compile.linkFrameworkWeak` - use `std.Build.Module.linkFramework` * move more logic into `std.Build.Module` * allow `target` and `optimize` to be `null` when creating a Module. Along with other fields, those unspecified options will be inherited from parent `Module` when inserted into an import table. * the `target` field of `addExecutable` is now required. pass `b.host` to get the host target.
104 lines
3.2 KiB
Zig
104 lines
3.2 KiB
Zig
const std = @import("std");
|
|
const Cases = @import("src/Cases.zig");
|
|
|
|
pub fn addCases(ctx: *Cases, b: *std.Build) !void {
|
|
const target = b.resolveTargetQuery(.{
|
|
.cpu_arch = .nvptx64,
|
|
.os_tag = .cuda,
|
|
});
|
|
|
|
{
|
|
var case = addPtx(ctx, target, "simple addition and subtraction");
|
|
|
|
case.addCompile(
|
|
\\fn add(a: i32, b: i32) i32 {
|
|
\\ return a + b;
|
|
\\}
|
|
\\
|
|
\\pub export fn add_and_substract(a: i32, out: *i32) callconv(.Kernel) void {
|
|
\\ const x = add(a, 7);
|
|
\\ var y = add(2, 0);
|
|
\\ y -= x;
|
|
\\ out.* = y;
|
|
\\}
|
|
);
|
|
}
|
|
|
|
{
|
|
var case = addPtx(ctx, target, "read special registers");
|
|
|
|
case.addCompile(
|
|
\\fn threadIdX() u32 {
|
|
\\ return asm ("mov.u32 \t%[r], %tid.x;"
|
|
\\ : [r] "=r" (-> u32),
|
|
\\ );
|
|
\\}
|
|
\\
|
|
\\pub export fn special_reg(a: []const i32, out: []i32) callconv(.Kernel) void {
|
|
\\ const i = threadIdX();
|
|
\\ out[i] = a[i] + 7;
|
|
\\}
|
|
);
|
|
}
|
|
|
|
{
|
|
var case = addPtx(ctx, target, "address spaces");
|
|
|
|
case.addCompile(
|
|
\\var x: i32 addrspace(.global) = 0;
|
|
\\
|
|
\\pub export fn increment(out: *i32) callconv(.Kernel) void {
|
|
\\ x += 1;
|
|
\\ out.* = x;
|
|
\\}
|
|
);
|
|
}
|
|
|
|
{
|
|
var case = addPtx(ctx, target, "reduce in shared mem");
|
|
case.addCompile(
|
|
\\fn threadIdX() u32 {
|
|
\\ return asm ("mov.u32 \t%[r], %tid.x;"
|
|
\\ : [r] "=r" (-> u32),
|
|
\\ );
|
|
\\}
|
|
\\
|
|
\\ var _sdata: [1024]f32 addrspace(.shared) = undefined;
|
|
\\ pub export fn reduceSum(d_x: []const f32, out: *f32) callconv(.Kernel) void {
|
|
\\ var sdata: *addrspace(.generic) [1024]f32 = @addrSpaceCast(&_sdata);
|
|
\\ const tid: u32 = threadIdX();
|
|
\\ var sum = d_x[tid];
|
|
\\ sdata[tid] = sum;
|
|
\\ asm volatile ("bar.sync \t0;");
|
|
\\ var s: u32 = 512;
|
|
\\ while (s > 0) : (s = s >> 1) {
|
|
\\ if (tid < s) {
|
|
\\ sum += sdata[tid + s];
|
|
\\ sdata[tid] = sum;
|
|
\\ }
|
|
\\ asm volatile ("bar.sync \t0;");
|
|
\\ }
|
|
\\
|
|
\\ if (tid == 0) {
|
|
\\ out.* = sum;
|
|
\\ }
|
|
\\ }
|
|
);
|
|
}
|
|
}
|
|
|
|
fn addPtx(ctx: *Cases, target: std.Build.ResolvedTarget, name: []const u8) *Cases.Case {
|
|
ctx.cases.append(.{
|
|
.name = name,
|
|
.target = target,
|
|
.updates = std.ArrayList(Cases.Update).init(ctx.cases.allocator),
|
|
.output_mode = .Obj,
|
|
.deps = std.ArrayList(Cases.DepModule).init(ctx.cases.allocator),
|
|
.link_libc = false,
|
|
.backend = .llvm,
|
|
// Bug in Debug mode
|
|
.optimize_mode = .ReleaseSafe,
|
|
}) catch @panic("out of memory");
|
|
return &ctx.cases.items[ctx.cases.items.len - 1];
|
|
}
|