zig

commit 3eed61340784af95a92e2035712eeaeab7cf0ad3 (tree)
parent e2d2295382164776d32997d5806b9829525d7875
Author: LemonBoy <thatlemon@gmail.com>
Date:   Mon,  3 May 2021 12:30:18 +0200

std: Add two more ARM CPUs to the known CPU list

Modeled after GCC's description.

Diffstat:
M
lib/std/target/aarch64.zig
 | 
18
++++++++++++++++++
M
lib/std/zig/system/linux.zig
 | 
6
++++++
M
tools/update_cpu_features.zig
 | 
22
++++++++++++++++++++++

3 files changed, 46 insertions(+), 0 deletions(-)
diff --git a/lib/std/target/aarch64.zig b/lib/std/target/aarch64.zig
@@ -1621,6 +1621,16 @@ pub const cpu = struct {
             .apple_a7,
         }),
     };
+    pub const emag = CpuModel{
+        .name = "emag",
+        .llvm_name = null,
+        .features = featureSet(&[_]Feature{
+            .crc,
+            .crypto,
+            .perfmon,
+            .v8a,
+        }),
+    };
     pub const exynos_m1 = CpuModel{
         .name = "exynos_m1",
         .llvm_name = null,
@@ -1867,4 +1877,12 @@ pub const cpu = struct {
             .v8_2a,
         }),
     };
+    pub const xgene1 = CpuModel{
+        .name = "xgene1",
+        .llvm_name = null,
+        .features = featureSet(&[_]Feature{
+            .perfmon,
+            .v8a,
+        }),
+    };
 };
diff --git a/lib/std/zig/system/linux.zig b/lib/std/zig/system/linux.zig
@@ -239,6 +239,11 @@ const ArmCpuinfoImpl = struct {
         const Nvidia = [_]E{
             E{ .part = 0x004, .m64 = &A64.carmel },
         };
+        // implementer = 0x50
+        const Ampere = [_]E{
+            E{ .part = 0x000, .variant = 3, .m64 = &A64.emag },
+            E{ .part = 0x000, .m64 = &A64.xgene1 },
+        };
         // implementer = 0x51
         const Qualcomm = [_]E{
             E{ .part = 0x06f, .m32 = &A32.krait },
@@ -262,6 +267,7 @@ const ArmCpuinfoImpl = struct {
                 0x43 => &Cavium,
                 0x46 => &Fujitsu,
                 0x48 => &HiSilicon,
+                0x50 => &Ampere,
                 0x51 => &Qualcomm,
                 else => return null,
             };
diff --git a/tools/update_cpu_features.zig b/tools/update_cpu_features.zig
@@ -239,6 +239,28 @@ const llvm_targets = [_]LlvmTarget{
                     "zcz_fp",
                 },
             },
+            .{
+                .llvm_name = null,
+                .zig_name = "xgene1",
+                .features = &.{
+                    "fp_armv8",
+                    "neon",
+                    "perfmon",
+                    "v8a",
+                },
+            },
+            .{
+                .llvm_name = null,
+                .zig_name = "emag",
+                .features = &.{
+                    "crc",
+                    "crypto",
+                    "fp_armv8",
+                    "neon",
+                    "perfmon",
+                    "v8a",
+                },
+            },
         },
     },
     .{