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re PR rtl-optimization/32790 (REG_N_SETS holds wrong value)

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PR rtl-optimization/32790
        * reginfo.c (reg_scan_mark_refs): Look for ZERO_EXTRACT,
        not ZERO_EXTEND in SET_DESTs.

From-SVN: r219795
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Jeff Law 2015-01-17 00:24:24 -07:00 committed by Jeff Law
parent 21c4af433b
commit bd5fb71cd0
2 changed files with 7 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,9 @@
2015-01-17 Jeff Law <law@redhat.com>
PR rtl-optimization/32790
* reginfo.c (reg_scan_mark_refs): Look for ZERO_EXTRACT,
not ZERO_EXTEND in SET_DESTs.
2015-01-17 Alan Modra <amodra@gmail.com>
* cprop.c (do_local_cprop): Revert last change.

2
gcc/reginfo.c
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@ -1132,7 +1132,7 @@ reg_scan_mark_refs (rtx x, rtx_insn *insn)
/* Count a set of the destination if it is a register. */
for (dest = SET_DEST (x);
GET_CODE (dest) == SUBREG || GET_CODE (dest) == STRICT_LOW_PART
|| GET_CODE (dest) == ZERO_EXTEND;
|| GET_CODE (dest) == ZERO_EXTRACT;
dest = XEXP (dest, 0))
;