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* take care of po_noreturn in more cases

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git-svn-id: trunk@47623 -
This commit is contained in:
florian 2020-11-28 16:02:51 +00:00
parent ff87df7581
commit 5ca2356638
2 changed files with 9 additions and 0 deletions
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5
compiler/m68k/cgcpu.pas
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@ -1884,6 +1884,11 @@ unit cgcpu;
ref : TReference; ref : TReference;
ref2: TReference; ref2: TReference;
begin begin
{ if a subroutine is marked as non-returning, we do
not generate any exit code, so we really trust the noreturn directive
}
if po_noreturn in current_procinfo.procdef.procoptions then
exit;
if not nostackframe then if not nostackframe then
begin begin
list.concat(taicpu.op_reg(A_UNLK,S_NO,NR_FRAME_POINTER_REG)); list.concat(taicpu.op_reg(A_UNLK,S_NO,NR_FRAME_POINTER_REG));

4
compiler/ncgutil.pas
View File

@ -870,6 +870,8 @@ implementation
procedure gen_save_used_regs(list:TAsmList); procedure gen_save_used_regs(list:TAsmList);
begin begin
if po_noreturn in current_procinfo.procdef.procoptions then
exit;
{ Pure assembler routines need to save the registers themselves } { Pure assembler routines need to save the registers themselves }
if (po_assembler in current_procinfo.procdef.procoptions) then if (po_assembler in current_procinfo.procdef.procoptions) then
exit; exit;
@ -880,6 +882,8 @@ implementation
procedure gen_restore_used_regs(list:TAsmList); procedure gen_restore_used_regs(list:TAsmList);
begin begin
if po_noreturn in current_procinfo.procdef.procoptions then
exit;
{ Pure assembler routines need to save the registers themselves } { Pure assembler routines need to save the registers themselves }
if (po_assembler in current_procinfo.procdef.procoptions) then if (po_assembler in current_procinfo.procdef.procoptions) then
exit; exit;