|
|
@@ -1467,17 +1467,18 @@ Begin
|
|
|
{ shr/sar const1, %reg
|
|
|
shl const2, %reg
|
|
|
with const1 = const2 }
|
|
|
- Begin
|
|
|
- Paicpu(p)^.opcode := A_AND;
|
|
|
- l := (1 shl (Paicpu(p)^.oper[0].val))-1;
|
|
|
- Case Paicpu(p)^.opsize Of
|
|
|
- S_B: Paicpu(p)^.LoadConst(0,l Xor $ff);
|
|
|
- S_W: Paicpu(p)^.LoadConst(0,l Xor $ffff);
|
|
|
- S_L: Paicpu(p)^.LoadConst(0,l Xor $ffffffff);
|
|
|
+ if (Paicpu(p)^.oper[0].val = Paicpu(hp1)^.oper[0].val) then
|
|
|
+ Begin
|
|
|
+ Paicpu(p)^.opcode := A_AND;
|
|
|
+ l := (1 shl (Paicpu(p)^.oper[0].val))-1;
|
|
|
+ Case Paicpu(p)^.opsize Of
|
|
|
+ S_B: Paicpu(p)^.LoadConst(0,l Xor $ff);
|
|
|
+ S_W: Paicpu(p)^.LoadConst(0,l Xor $ffff);
|
|
|
+ S_L: Paicpu(p)^.LoadConst(0,l Xor $ffffffff);
|
|
|
+ End;
|
|
|
+ AsmL^.remove(hp1);
|
|
|
+ dispose(hp1, done);
|
|
|
End;
|
|
|
- AsmL^.remove(hp1);
|
|
|
- dispose(hp1, done);
|
|
|
- End;
|
|
|
End;
|
|
|
A_SETcc :
|
|
|
{ changes
|
|
|
@@ -1946,7 +1947,11 @@ End.
|
|
|
|
|
|
{
|
|
|
$Log$
|
|
|
- Revision 1.4 2000-07-21 15:19:55 jonas
|
|
|
+ Revision 1.5 2000-07-28 13:56:23 jonas
|
|
|
+ * fixed bug in shr/shl optimization when -Og is used (merged from fixes
|
|
|
+ branch)
|
|
|
+
|
|
|
+ Revision 1.4 2000/07/21 15:19:55 jonas
|
|
|
* daopt386: changes to getnextinstruction/getlastinstruction so they
|
|
|
ignore labels who have is_addr set
|
|
|
+ daopt386/csopt386: remove loads of registers which are overwritten
|
Jonas Maebe