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Add basic genSetReg for aarch64

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This commit is contained in:
Jakub Konka 2020-11-06 23:03:20 +01:00
parent 68bb1e91aa
commit d601b0f4eb
1 changed files with 19 additions and 0 deletions
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19
src/codegen.zig
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@ -2489,6 +2489,25 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type {
},
else => return self.fail(src, "TODO implement getSetReg for arm {}", .{mcv}),
},
.aarch64 => switch (mcv) {
.dead => unreachable,
.ptr_stack_offset => unreachable,
.ptr_embedded_in_code => unreachable,
.unreach, .none => return, // Nothing to do.
.undef => {
if (!self.wantSafety())
return; // The already existing value will do just fine.
// Write the debug undefined value.
switch (reg.size()) {
32 => return self.genSetReg(src, reg, .{ .immediate = 0xaaaaaaaa }),
64 => return self.genSetReg(src, reg, .{ .immediate = 0xaaaaaaaaaaaaaaaa }),
else => unreachable, // unexpected register size
}
},
.immediate => return self.fail(src, "TODO implement genSetReg for aarch64 {}", .{mcv}),
.register => return self.fail(src, "TODO implement genSetReg for aarch64 {}", .{mcv}),
else => return self.fail(src, "TODO implement genSetReg for aarch64 {}", .{mcv}),
},
.riscv64 => switch (mcv) {
.dead => unreachable,
.ptr_stack_offset => unreachable,