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* fixed WebAssembly code generation for integer unary minus with overflow checking

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This commit is contained in:
Nikolay Nikolov 2022-06-22 01:47:07 +03:00
parent b11434a6f8
commit 90e43e055b
1 changed files with 25 additions and 0 deletions
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25
compiler/wasm32/nwasmmat.pas
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@ -46,6 +46,7 @@ interface
end;
twasmunaryminusnode = class(tcgunaryminusnode)
procedure second_integer;override;
procedure second_float;override;
end;
@ -211,6 +212,30 @@ implementation
twasmunaryminustnode
*****************************************************************************}
procedure twasmunaryminusnode.second_integer;
var
hl: tasmlabel;
begin
secondpass(left);
if not(left.location.loc in [LOC_REGISTER,LOC_CREGISTER]) then
hlcg.location_force_reg(current_asmdata.CurrAsmList,left.location,left.resultdef,resultdef,false);
location_reset(location,LOC_REGISTER,def_cgsize(resultdef));
location.register:=cg.getintregister(current_asmdata.CurrAsmList,location.size);
if (cs_check_overflow in current_settings.localswitches) then
begin
current_asmdata.getjumplabel(hl);
current_asmdata.CurrAsmList.concat(taicpu.op_none(a_block));
hlcg.a_cmp_const_reg_label(current_asmdata.CurrAsmList,resultdef,OC_NE,torddef(resultdef).low.svalue,left.location.register,hl);
hlcg.g_call_system_proc(current_asmdata.CurrAsmList,'fpc_overflow',[],nil).resetiftemp;
hlcg.a_label(current_asmdata.CurrAsmList,hl);
current_asmdata.CurrAsmList.concat(taicpu.op_none(a_end_block));
end;
hlcg.a_op_reg_reg(current_asmdata.CurrAsmList,OP_NEG,resultdef,left.location.register,location.register);
end;
procedure twasmunaryminusnode.second_float;
var
opc: tasmop;