| Message ID | 468390da7be76894be1bb350e5ca9a25.squirrel@webmail.cs.wisc.edu |
|---|---|
| State | New |
| Headers | show |
2013/7/23 <pchang9@cs.wisc.edu>: > > 2013-07-22 Chang <pchang9@cs.wisc.edu> > > * rtlanal.c (computed_jump_p): Exit loop once we find label > reference is used. > The second line is supposed to be aligned with '*' character at first line. Like this: * rtlanal.c (computed_jump_p): Exit loop once we find label reference is used. Best regards, jasonwucj
Index: gcc/rtlanal.c =================================================================== --- gcc/rtlanal.c (revision 201034) +++ gcc/rtlanal.c (working copy) @@ -2802,7 +2802,10 @@ if (GET_CODE (XVECEXP (pat, 0, i)) == USE && (GET_CODE (XEXP (XVECEXP (pat, 0, i), 0)) == LABEL_REF)) - has_use_labelref = 1; + { + has_use_labelref = 1; + break; + } if (! has_use_labelref) for (i = len - 1; i >= 0; i--)
Hi, The problem appears in revision 201034 in version 4.9. I also reported this problem at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57812. Bootstrap and regression-tested on x86_64-linux. In method "computed_jump_p()" in gcc/rtlanal.c, the loop on line 2801 should break immediately after "has_use_labelref" is set to "1". 2013-07-22 Chang <pchang9@cs.wisc.edu> * rtlanal.c (computed_jump_p): Exit loop once we find label reference is used. -Chang Index: gcc/rtlanal.c =================================================================== --- gcc/rtlanal.c (revision 201034) +++ gcc/rtlanal.c (working copy) @@ -2802,7 +2802,10 @@ if (GET_CODE (XVECEXP (pat, 0, i)) == USE && (GET_CODE (XEXP (XVECEXP (pat, 0, i), 0)) == LABEL_REF)) - has_use_labelref = 1; + { + has_use_labelref = 1; + break; + } if (! has_use_labelref) for (i = len - 1; i >= 0; i--)