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| author | Jacob Young <jacobly0@users.noreply.github.com> | 2023-05-13 02:24:41 -0400 |
|---|---|---|
| committer | Jacob Young <jacobly0@users.noreply.github.com> | 2023-05-15 03:07:51 -0400 |
| commit | 57c38f6433c8024d1946bcf1b5b7d0892fc751a7 (patch) | |
| tree | f5e338f3f13c91420b112c9ff39f8128335c2806 /src/arch | |
| parent | 2cbd442a9df16ab2d13d03041631f516269c9f64 (diff) | |
| download | zig-57c38f6433c8024d1946bcf1b5b7d0892fc751a7.tar.gz zig-57c38f6433c8024d1946bcf1b5b7d0892fc751a7.zip | |
x86_64: implement global payload pointers
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86_64/CodeGen.zig | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/arch/x86_64/CodeGen.zig b/src/arch/x86_64/CodeGen.zig index c04bb1d2a5..4aa2443295 100644 --- a/src/arch/x86_64/CodeGen.zig +++ b/src/arch/x86_64/CodeGen.zig @@ -3467,14 +3467,17 @@ fn airOptionalPayloadPtrSet(self: *Self, inst: Air.Inst.Index) !void { try self.copyToRegisterWithInstTracking(inst, dst_ty, src_mcv); } - const dst_mcv = if (src_mcv.isRegister() and self.reuseOperand(inst, ty_op.operand, 0, src_mcv)) + const dst_mcv: MCValue = if (src_mcv.isRegister() and + self.reuseOperand(inst, ty_op.operand, 0, src_mcv)) src_mcv + else if (self.liveness.isUnused(inst)) + .{ .register = try self.copyToTmpRegister(dst_ty, src_mcv) } else try self.copyToRegisterWithInstTracking(inst, dst_ty, src_mcv); const pl_ty = dst_ty.childType(); const pl_abi_size = @intCast(i32, pl_ty.abiSize(self.target.*)); - try self.genSetMem(.{ .reg = dst_mcv.register }, pl_abi_size, Type.bool, .{ .immediate = 1 }); + try self.genSetMem(.{ .reg = dst_mcv.getReg().? }, pl_abi_size, Type.bool, .{ .immediate = 1 }); break :result if (self.liveness.isUnused(inst)) .unreach else dst_mcv; }; return self.finishAir(inst, result, .{ ty_op.operand, .none, .none }); |