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(reg_scan_mark_refs): XEXP (x, 0) in EXPR_LIST may be 0. 

From-SVN: r5739
This commit is contained in:
Richard Stallman 1993-10-11 19:55:18 +00:00
parent d01b0b7c4e
commit 7b18c3db9c
1 changed files with 2 additions and 1 deletions
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3
gcc/regclass.c
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@ -1584,7 +1584,8 @@ reg_scan_mark_refs (x, insn, note_flag)
break;
case EXPR_LIST:
reg_scan_mark_refs (XEXP (x, 0), insn, note_flag);
if (XEXP (x, 0))
reg_scan_mark_refs (XEXP (x, 0), insn, note_flag);
if (XEXP (x, 1))
reg_scan_mark_refs (XEXP (x, 1), insn, note_flag);
break;