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Merge pull request #21715 from alexrp/loongarch-porting

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Some miscellaneous LoongArch port work
This commit is contained in:
Alex Rønne Petersen 2024-10-16 09:13:51 +02:00 committed by GitHub
commit bdd3bc056e
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GPG Key ID: B5690EEEBB952194
5 changed files with 13 additions and 11 deletions
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8
lib/compiler_rt/clear_cache.zig
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@ -28,8 +28,10 @@ fn clear_cache(start: usize, end: usize) callconv(.C) void {
.aarch64, .aarch64_be => true,
else => false,
};
const loongarch64 = switch (arch) {
.loongarch64 => true,
const loongarch = switch (arch) {
.loongarch32,
.loongarch64,
=> true,
else => false,
};
const mips = switch (arch) {
@ -163,7 +165,7 @@ fn clear_cache(start: usize, end: usize) callconv(.C) void {
// On Darwin, sys_icache_invalidate() provides this functionality
sys_icache_invalidate(start, end - start);
exportIt();
} else if (os == .linux and loongarch64) {
} else if (os == .linux and loongarch) {
// See: https://github.com/llvm/llvm-project/blob/cf54cae26b65fc3201eff7200ffb9b0c9e8f9a13/compiler-rt/lib/builtins/clear_cache.c#L94-L95
asm volatile (
\\ ibar 0

4
lib/std/Target.zig
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@ -2711,7 +2711,6 @@ pub fn cTypeAlignment(target: Target, c_type: CType) u16 {
.csky,
.x86,
.xcore,
.loongarch32,
.kalimba,
.spu_2,
.xtensa,
@ -2735,6 +2734,7 @@ pub fn cTypeAlignment(target: Target, c_type: CType) u16 {
.aarch64,
.aarch64_be,
.loongarch32,
.loongarch64,
.mips64,
.mips64el,
@ -2815,7 +2815,6 @@ pub fn cTypePreferredAlignment(target: Target, c_type: CType) u16 {
.csky,
.xcore,
.loongarch32,
.kalimba,
.spu_2,
.xtensa,
@ -2845,6 +2844,7 @@ pub fn cTypePreferredAlignment(target: Target, c_type: CType) u16 {
.aarch64,
.aarch64_be,
.loongarch32,
.loongarch64,
.mips64,
.mips64el,

2
lib/std/Thread.zig
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@ -1338,7 +1338,7 @@ const LinuxThreadImpl = struct {
[len] "r" (self.mapped.len),
: "memory"
),
.loongarch64 => asm volatile (
.loongarch32, .loongarch64 => asm volatile (
\\ or $a0, $zero, %[ptr]
\\ or $a1, $zero, %[len]
\\ ori $a7, $zero, 215 # SYS_munmap

6
src/codegen/llvm.zig
View File

@ -520,6 +520,7 @@ const DataLayoutBuilder = struct {
.arm,
.armeb,
.csky,
.loongarch32,
.mips,
.mipsel,
.powerpc,
@ -535,6 +536,7 @@ const DataLayoutBuilder = struct {
.amdgcn,
.bpfeb,
.bpfel,
.loongarch64,
.mips64,
.mips64el,
.powerpc64,
@ -554,7 +556,6 @@ const DataLayoutBuilder = struct {
.nvptx64,
=> &.{ 16, 32, 64 },
.x86_64 => &.{ 8, 16, 32, 64 },
.loongarch64 => &.{64},
else => &.{},
}), 0..) |natural, index| switch (index) {
0 => try writer.print("-n{d}", .{natural}),
@ -12452,6 +12453,9 @@ fn backendSupportsF80(target: std.Target) bool {
/// if it produces miscompilations.
fn backendSupportsF16(target: std.Target) bool {
return switch (target.cpu.arch) {
// LoongArch can be removed from this list with LLVM 20.
.loongarch32,
.loongarch64,
.hexagon,
.powerpc,
.powerpcle,

4
test/llvm_targets.zig
View File

@ -108,10 +108,6 @@ const targets = [_]std.Target.Query{
.{ .cpu_arch = .lanai, .os_tag = .freestanding, .abi = .none },
.{ .cpu_arch = .loongarch32, .os_tag = .freestanding, .abi = .none },
.{ .cpu_arch = .loongarch32, .os_tag = .linux, .abi = .gnu },
.{ .cpu_arch = .loongarch32, .os_tag = .linux, .abi = .gnuf32 },
.{ .cpu_arch = .loongarch32, .os_tag = .linux, .abi = .gnusf },
.{ .cpu_arch = .loongarch32, .os_tag = .linux, .abi = .musl },
.{ .cpu_arch = .loongarch32, .os_tag = .linux, .abi = .none },
.{ .cpu_arch = .loongarch32, .os_tag = .uefi, .abi = .none },