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mips: fix C ABI compatibility

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This commit is contained in:
Maciej 'vesim' Kuliński
2024-09-07 17:29:43 +02:00
committed by Andrew Kelley
parent fb81522e0b
commit fb0028a0d7
4 changed files with 145 additions and 43 deletions
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src/codegen/llvm.zig
+19 -3
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@@ -26,6 +26,7 @@ const wasm_c_abi = @import("../arch/wasm/abi.zig");
const aarch64_c_abi = @import("../arch/aarch64/abi.zig");
const arm_c_abi = @import("../arch/arm/abi.zig");
const riscv_c_abi = @import("../arch/riscv64/abi.zig");
const mips_c_abi = @import("../arch/mips/abi.zig");
const dev = @import("../dev.zig");
const target_util = @import("../target.zig");
@@ -11681,7 +11682,10 @@ fn firstParamSRet(fn_info: InternPool.Key.FuncType, zcu: *Zcu, target: std.Targe
return switch (fn_info.cc) {
.Unspecified, .Inline => returnTypeByRef(zcu, target, return_type),
.C => switch (target.cpu.arch) {
.mips, .mipsel => false,
.mips, .mipsel => switch (mips_c_abi.classifyType(return_type, zcu, .ret)) {
.memory, .i32_array => true,
.byval => false,
},
.x86 => isByRef(return_type, zcu),
.x86_64 => switch (target.os.tag) {
.windows => x86_64_abi.classifyWindows(return_type, zcu) == .memory,
@@ -11732,7 +11736,12 @@ fn lowerFnRetTy(o: *Object, fn_info: InternPool.Key.FuncType) Allocator.Error!Bu
.C => {
switch (target.cpu.arch) {
.mips, .mipsel => return o.lowerType(return_type),
.mips, .mipsel => {
switch (mips_c_abi.classifyType(return_type, zcu, .ret)) {
.memory, .i32_array => return .void,
.byval => return o.lowerType(return_type),
}
},
.x86 => return if (isByRef(return_type, zcu)) .void else o.lowerType(return_type),
.x86_64 => switch (target.os.tag) {
.windows => return lowerWin64FnRetTy(o, fn_info),
@@ -11978,7 +11987,14 @@ const ParamTypeIterator = struct {
.mips, .mipsel => {
it.zig_index += 1;
it.llvm_index += 1;
return .byval;
switch (mips_c_abi.classifyType(ty, zcu, .arg)) {
.memory => {
it.byval_attr = true;
return .byref;
},
.byval => return .byval,
.i32_array => |size| return Lowering{ .i32_array = size },
}
},
.x86_64 => switch (target.os.tag) {
.windows => return it.nextWin64(ty),