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Do not modify $sp inside function body for mipscpu

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git-svn-id: trunk@21536 -
This commit is contained in:
pierre 2012-06-07 23:17:52 +00:00
parent c1269b0305
commit 4d8ebe5d1e
1 changed files with 9 additions and 5 deletions
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14
compiler/mips/ncpucall.pas
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@ -45,15 +45,19 @@ uses
procedure tMIPSELcallnode.extra_call_code;
begin
if pushedparasize > 0 then
current_asmdata.CurrAsmList.concat(taicpu.op_reg_reg_const(A_ADDIU, NR_STACK_POINTER_REG, NR_STACK_POINTER_REG, -pushedparasize));
{ MIPS functions should never modify the stack pointer
after the prologue.
Enough space must be allocated inside the prologue, not after. }
// if pushedparasize > 0 then
// current_asmdata.CurrAsmList.concat(taicpu.op_reg_reg_const(A_ADDIU, NR_STACK_POINTER_REG, NR_STACK_POINTER_REG, -pushedparasize));
end;
procedure tMIPSELcallnode.extra_post_call_code;
begin
if pushedparasize > 0 then
current_asmdata.CurrAsmList.concat(taicpu.op_reg_reg_const(A_ADDIU, NR_STACK_POINTER_REG, NR_STACK_POINTER_REG, pushedparasize));
{ MIPS functions should never modify the stack pointer
after the prologue.
// if pushedparasize > 0 then
// current_asmdata.CurrAsmList.concat(taicpu.op_reg_reg_const(A_ADDIU, NR_STACK_POINTER_REG, NR_STACK_POINTER_REG, pushedparasize));
end;