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Air: Always return true for inline assembly in mustLower().

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AstGen requires inline assembly to either have outputs or be marked volatile, so
there doesn't appear to be any point in doing these checks.
This commit is contained in:
Alex Rønne Petersen 2024-10-31 09:50:14 +01:00
parent 4c36a403a8
commit 47aaaec6ea
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1 changed files with 1 additions and 8 deletions
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9
src/Air.zig
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@ -1673,6 +1673,7 @@ pub fn mustLower(air: Air, inst: Air.Inst.Index, ip: *const InternPool) bool {
const data = air.instructions.items(.data)[@intFromEnum(inst)];
return switch (air.instructions.items(.tag)[@intFromEnum(inst)]) {
.arg,
.assembly,
.block,
.loop,
.repeat,
@ -1879,14 +1880,6 @@ pub fn mustLower(air: Air, inst: Air.Inst.Index, ip: *const InternPool) bool {
.work_group_id,
=> false,
.assembly => {
const extra = air.extraData(Air.Asm, data.ty_pl.payload);
const is_volatile = @as(u1, @truncate(extra.data.flags >> 31)) != 0;
return is_volatile or if (extra.data.outputs_len == 1)
@as(Air.Inst.Ref, @enumFromInt(air.extra[extra.end])) != .none
else
extra.data.outputs_len > 1;
},
.load => air.typeOf(data.ty_op.operand, ip).isVolatilePtrIp(ip),
.slice_elem_val, .ptr_elem_val => air.typeOf(data.bin_op.lhs, ip).isVolatilePtrIp(ip),
.atomic_load => switch (data.atomic_load.order) {