authorgravatar for jacobly@ziglang.orgJacob Young <jacobly@ziglang.org> 2023-09-25 01:35:44-04:00
committergravatar for jacobly@ziglang.orgJacob Young <jacobly@ziglang.org> 2023-10-01 15:09:52-04:00
logc3042cbe12dec72c07e021a76f7e5438a03dc854
tree02b0ec10e7cb2c0ebdc26f71b5e6c046f3b2593f
parent8470652f10a07f03b24746ffd786f6f5f4aabccc

x86_64: add missing caller preserved regs

All allocatable registers have to be either callee preserved or caller preserved.

1 files changed, 2 insertions(+), 2 deletions(-)

src/arch/x86_64/abi.zig+2-2
......@@ -444,7 +444,7 @@ pub const SysV = struct {
444444 /// These registers need to be preserved (saved on the stack) and restored by the caller before
445445 /// the caller relinquishes control to a subroutine via call instruction (or similar).
446446 /// In other words, these registers are free to use by the callee.
447 pub const caller_preserved_regs = [_]Register{ .rax, .rcx, .rdx, .rsi, .rdi, .r8, .r9, .r10, .r11 };
447 pub const caller_preserved_regs = [_]Register{ .rax, .rcx, .rdx, .rsi, .rdi, .r8, .r9, .r10, .r11 } ++ sse_avx_regs;
448448
449449 pub const c_abi_int_param_regs = [_]Register{ .rdi, .rsi, .rdx, .rcx, .r8, .r9 };
450450 pub const c_abi_int_return_regs = [_]Register{ .rax, .rdx };
......@@ -457,7 +457,7 @@ pub const Win64 = struct {
457457 /// These registers need to be preserved (saved on the stack) and restored by the caller before
458458 /// the caller relinquishes control to a subroutine via call instruction (or similar).
459459 /// In other words, these registers are free to use by the callee.
460 pub const caller_preserved_regs = [_]Register{ .rax, .rcx, .rdx, .r8, .r9, .r10, .r11 };
460 pub const caller_preserved_regs = [_]Register{ .rax, .rcx, .rdx, .r8, .r9, .r10, .r11 } ++ sse_avx_regs;
461461
462462 pub const c_abi_int_param_regs = [_]Register{ .rcx, .rdx, .r8, .r9 };
463463 pub const c_abi_int_return_regs = [_]Register{.rax};