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Improve codegen for bit_field [N]T compound literals

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gingerBill
2024-04-24 17:01:09 +01:00
parent c330e5b5c1
commit 214537b420
3 changed files with 91 additions and 18 deletions
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8
src/llvm_backend_general.cpp
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@@ -775,8 +775,8 @@ gb_internal void lb_addr_store(lbProcedure *p, lbAddr addr, lbValue value) {
lbValue dst = addr.addr;
lbValue src = lb_address_from_load_or_generate_local(p, value);
if ((addr.bitfield.bit_offset & 7) == 0 &&
(addr.bitfield.bit_size & 7) == 0) {
if ((addr.bitfield.bit_offset % 8) == 0 &&
(addr.bitfield.bit_size % 8) == 0) {
lbValue byte_offset = lb_const_int(p->module, t_uintptr, addr.bitfield.bit_offset/8);
lbValue byte_size = lb_const_int(p->module, t_uintptr, addr.bitfield.bit_size/8);
lbValue dst_offset = lb_emit_conv(p, dst, t_u8_ptr);
@@ -1108,7 +1108,7 @@ gb_internal lbValue lb_addr_load(lbProcedure *p, lbAddr const &addr) {
i64 total_bitfield_bit_size = 8*type_size_of(lb_addr_type(addr));
i64 dst_byte_size = type_size_of(addr.bitfield.type);
lbAddr dst = lb_add_local_generated(p, addr.bitfield.type, false);
lbAddr dst = lb_add_local_generated(p, addr.bitfield.type, true);
lbValue src = addr.addr;
lbValue bit_offset = lb_const_int(p->module, t_uintptr, addr.bitfield.bit_offset);
@@ -1118,7 +1118,7 @@ gb_internal lbValue lb_addr_load(lbProcedure *p, lbAddr const &addr) {
GB_ASSERT(type_size_of(addr.bitfield.type) >= ((addr.bitfield.bit_size+7)/8));
if ((addr.bitfield.bit_offset & 7) == 0) {
if ((addr.bitfield.bit_offset % 8) == 0) {
lbValue copy_size = byte_size;
lbValue src_offset = lb_emit_conv(p, src, t_u8_ptr);
src_offset = lb_emit_ptr_offset(p, src_offset, byte_offset);