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Air: Fix mustLower() to consider volatile for a handful of instructions.

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These can all potentially operate on volatile pointers.
This commit is contained in:
Alex Rønne Petersen 2024-10-31 09:55:31 +01:00
parent 47aaaec6ea
commit 5c2e300f42
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1 changed files with 2 additions and 6 deletions
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8
src/Air.zig
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@ -1817,12 +1817,8 @@ pub fn mustLower(air: Air, inst: Air.Inst.Index, ip: *const InternPool) bool {
.cmp_vector_optimized,
.is_null,
.is_non_null,
.is_null_ptr,
.is_non_null_ptr,
.is_err,
.is_non_err,
.is_err_ptr,
.is_non_err_ptr,
.bool_and,
.bool_or,
.fptrunc,
@ -1835,7 +1831,6 @@ pub fn mustLower(air: Air, inst: Air.Inst.Index, ip: *const InternPool) bool {
.unwrap_errunion_payload,
.unwrap_errunion_err,
.unwrap_errunion_payload_ptr,
.unwrap_errunion_err_ptr,
.wrap_errunion_payload,
.wrap_errunion_err,
.struct_field_ptr,
@ -1880,7 +1875,8 @@ pub fn mustLower(air: Air, inst: Air.Inst.Index, ip: *const InternPool) bool {
.work_group_id,
=> false,
.load => air.typeOf(data.ty_op.operand, ip).isVolatilePtrIp(ip),
.is_non_null_ptr, .is_null_ptr, .is_non_err_ptr, .is_err_ptr => air.typeOf(data.un_op, ip).isVolatilePtrIp(ip),
.load, .unwrap_errunion_err_ptr => 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) {
.unordered, .monotonic => air.typeOf(data.atomic_load.ptr, ip).isVolatilePtrIp(ip),