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| author | Jacob Young <jacobly0@users.noreply.github.com> | 2023-04-02 22:25:35 -0400 |
|---|---|---|
| committer | Jakub Konka <kubkon@jakubkonka.com> | 2023-04-03 17:45:16 +0200 |
| commit | 1980f5479b2139112ff67de5d5f2e6af09fb215e (patch) | |
| tree | a0faed4b737de0e5ed4f972517d6ed09bf2ce79e /src | |
| parent | 272acb7ee5368a32d9f4bc559e93d96759b80173 (diff) | |
| download | zig-1980f5479b2139112ff67de5d5f2e6af09fb215e.tar.gz zig-1980f5479b2139112ff67de5d5f2e6af09fb215e.zip | |
x86_64: implement store to immediate address
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/x86_64/CodeGen.zig | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/src/arch/x86_64/CodeGen.zig b/src/arch/x86_64/CodeGen.zig index f3bd6a9e8a..44362f9bc0 100644 --- a/src/arch/x86_64/CodeGen.zig +++ b/src/arch/x86_64/CodeGen.zig @@ -3651,10 +3651,7 @@ fn store(self: *Self, ptr: MCValue, value: MCValue, ptr_ty: Type, value_ty: Type .dead => unreachable, .eflags => unreachable, .register_overflow => unreachable, - .immediate => |imm| { - try self.setRegOrMem(value_ty, .{ .memory = imm }, value); - }, - .stack_offset => { + .immediate, .stack_offset => { const reg = try self.copyToTmpRegister(ptr_ty, ptr); try self.store(.{ .register = reg }, value, ptr_ty, value_ty); }, @@ -3748,23 +3745,18 @@ fn store(self: *Self, ptr: MCValue, value: MCValue, ptr_ty: Type, value_ty: Type -@intCast(i32, overflow_bit_offset), ); }, - .linker_load, - .memory, - .stack_offset, - => { - if (abi_size <= 8) { - const tmp_reg = try self.copyToTmpRegister(value_ty, value); - return self.store(ptr, .{ .register = tmp_reg }, ptr_ty, value_ty); - } - - try self.genInlineMemcpy(.{ .stack_offset = 0 }, value, .{ .immediate = abi_size }, .{ - .source_stack_base = .rbp, - .dest_stack_base = reg.to64(), - }); - }, + .linker_load, .memory, .stack_offset => if (abi_size <= 8) { + const tmp_reg = try self.copyToTmpRegister(value_ty, value); + try self.store(ptr, .{ .register = tmp_reg }, ptr_ty, value_ty); + } else try self.genInlineMemcpy( + .{ .stack_offset = 0 }, + value, + .{ .immediate = abi_size }, + .{ .source_stack_base = .rbp, .dest_stack_base = reg.to64() }, + ), .ptr_stack_offset => { const tmp_reg = try self.copyToTmpRegister(value_ty, value); - return self.store(ptr, .{ .register = tmp_reg }, ptr_ty, value_ty); + try self.store(ptr, .{ .register = tmp_reg }, ptr_ty, value_ty); }, } }, @@ -3788,7 +3780,7 @@ fn store(self: *Self, ptr: MCValue, value: MCValue, ptr_ty: Type, value_ty: Type ); const new_ptr = MCValue{ .register = addr_reg.to64() }; - return self.store(new_ptr, value, ptr_ty, value_ty); + try self.store(new_ptr, value, ptr_ty, value_ty); }, } } |