Mirrors/zig
1
0
Fork 0
mirror of https://codeberg.org/ziglang/zig.git synced 2026-04-26 13:01:34 +03:00
Code Issues Packages Projects Releases Wiki Activity

std.zig.system.x86: require OS APX save support for APX features

Browse Source
This commit is contained in:
Alex Rønne Petersen
2026-01-20 23:30:05 +01:00
parent 44004b05ef
commit 13c6e227a9
1 changed files with 10 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/std/zig/system/x86.zig
+10 -8
View File
@@ -426,6 +426,8 @@ fn detectNativeFeatures(cpu: *Target.Cpu, os_tag: Target.Os.Tag) void {
// AMX requires additional context to be saved by the OS.
const has_amx_save = xcr0.xtilecfg and xcr0.xtiledata;
const has_apx_save = xcr0.apx;
setFeature(cpu, .avx, has_avx_save);
setFeature(cpu, .fma, bit(leaf.ecx, 12) and has_avx_save);
// Only enable XSAVE if OS has enabled support for saving YMM state.
@@ -586,14 +588,14 @@ fn detectNativeFeatures(cpu: *Target.Cpu, os_tag: Target.Os.Tag) void {
setFeature(cpu, .prefetchi, cpu.has(.x86, .prefetchi) or bit(leaf.edx, 14));
setFeature(cpu, .usermsr, bit(leaf.edx, 15));
// APX
setFeature(cpu, .egpr, bit(leaf.edx, 21));
setFeature(cpu, .push2pop2, bit(leaf.edx, 21));
setFeature(cpu, .ppx, bit(leaf.edx, 21));
setFeature(cpu, .ndd, bit(leaf.edx, 21));
setFeature(cpu, .ccmp, bit(leaf.edx, 21));
setFeature(cpu, .nf, bit(leaf.edx, 21));
setFeature(cpu, .cf, bit(leaf.edx, 21));
setFeature(cpu, .zu, bit(leaf.edx, 21));
setFeature(cpu, .egpr, bit(leaf.edx, 21) and has_apx_save);
setFeature(cpu, .push2pop2, bit(leaf.edx, 21) and has_apx_save);
setFeature(cpu, .ppx, bit(leaf.edx, 21) and has_apx_save);
setFeature(cpu, .ndd, bit(leaf.edx, 21) and has_apx_save);
setFeature(cpu, .ccmp, bit(leaf.edx, 21) and has_apx_save);
setFeature(cpu, .nf, bit(leaf.edx, 21) and has_apx_save);
setFeature(cpu, .cf, bit(leaf.edx, 21) and has_apx_save);
setFeature(cpu, .zu, bit(leaf.edx, 21) and has_apx_save);
} else {
for ([_]Target.x86.Feature{
.sha512,