Kaynağa Gözat

* Modified FindRegAlloc() to skip branch delay slots in the same way it is done in GetNextInstruction(). This fixes processing sequences "dealloc reg; branch reg,label; NOP; alloc reg" in BuildLabelTableAndFixRegAlloc(), deallocation is now correctly moved after branch. Before this change, the last allocation was ignored, and deallocation was moved forward until another instruction using reg was encountered.

git-svn-id: trunk@28891 -
sergei 11 yıl önce
ebeveyn
işleme
0041024e5f
1 değiştirilmiş dosya ile 3 ekleme ve 0 silme
  1. 3 0
      compiler/aoptobj.pas

+ 3 - 0
compiler/aoptobj.pas

@@ -1041,6 +1041,9 @@ Unit AoptObj;
         Repeat
           While Assigned(StartPai) And
                 ((StartPai.typ in (SkipInstr - [ait_regAlloc])) Or
+{$if defined(MIPS) or defined(SPARC)}
+                ((startpai.typ=ait_instruction) and (taicpu(startpai).opcode=A_NOP)) or
+{$endif MIPS or SPARC}
                  ((StartPai.typ = ait_label) and
                   Not(Tai_Label(StartPai).labsym.Is_Used))) Do
             StartPai := Tai(StartPai.Next);