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ORCA-C
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Ensure % with negative operands is not mis-optimized in intermediate code. 

This will not be triggered in most cases, but might be if one of the operand expressions was itself subject to optimization.
This commit is contained in:
Stephen Heumann 2018-09-14 19:16:50 -05:00
parent fedd275395
commit 80b96c1147
1 changed files with 2 additions and 2 deletions
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4
DAG.pas
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@ -1625,7 +1625,7 @@ case op^.opcode of {check for optimizations of this node}
pc_mdl: begin {pc_mdl}
if op^.right^.opcode = pc_ldc then
if op^.left^.opcode = pc_ldc then
if op^.right^.lval <> 0 then begin
if (op^.left^.lval >= 0) and (op^.right^.lval > 0) then begin
op^.left^.lval := op^.left^.lval mod op^.right^.lval;
opv := op^.left;
end; {if}
@ -1634,7 +1634,7 @@ case op^.opcode of {check for optimizations of this node}
pc_mod: begin {pc_mod}
if op^.right^.opcode = pc_ldc then
if op^.left^.opcode = pc_ldc then
if op^.right^.q <> 0 then begin
if (op^.left^.q >= 0) and (op^.right^.q > 0) then begin
op^.left^.q := op^.left^.q mod op^.right^.q;
opv := op^.left;
end; {if}