FreeChainXenon/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

s390.c (s390_z10_optimize_cmp): Skip notes when investigating previous or next insns.

Browse source 
2009-10-16  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.c (s390_z10_optimize_cmp): Skip notes when
	investigating previous or next insns.

From-SVN: r152896
This commit is contained in:
Andreas Krebbel 2009-10-16 10:09:28 +00:00 • committed by Andreas Krebbel
parent 3808dfec58
commit 200ab6fd4b
2 changed files with 7 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
gcc/ChangeLog
View file

@ -1,3 +1,8 @@
2009-10-16 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* config/s390/s390.c (s390_z10_optimize_cmp): Skip notes when
investigating previous or next insns.
2009-10-16 Eric Botcazou <ebotcazou@adacore.com>
* tree-sra.c (build_ref_for_offset_1): Update comment.

4
gcc/config/s390/s390.c
View file

@ -9866,7 +9866,7 @@ s390_z10_optimize_cmp (rtx insn)
/* Swap the COMPARE arguments and its mask if there is a
conflicting access in the previous insn. */
prev_insn = PREV_INSN (insn);
prev_insn = prev_nonnote_insn (insn);
if (prev_insn != NULL_RTX && INSN_P (prev_insn)
&& reg_referenced_p (*op1, PATTERN (prev_insn)))
s390_swap_cmp (cond, op0, op1, insn);
@ -9877,7 +9877,7 @@ s390_z10_optimize_cmp (rtx insn)
the operands, or if swapping them would cause a conflict
with the previous insn, issue a NOP after the COMPARE in
order to separate the two instuctions. */
next_insn = NEXT_INSN (insn);
next_insn = next_nonnote_insn (insn);
if (next_insn != NULL_RTX && INSN_P (next_insn)
&& s390_non_addr_reg_read_p (*op1, next_insn))
{