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

re PR tree-optimization/77916 (ICE in verify_gimple_in_cfg: invalid (pointer) operands to plus/minus)

Browse source 
2016-10-18  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/77916
	* gimple-ssa-strength-reduction.c (analyze_increments): Reinstate
	stopgap fix, as pointers with -1 increment are still broken.

From-SVN: r241305
This commit is contained in:
Bill Schmidt 2016-10-18 13:35:19 +00:00 • committed by William Schmidt
parent 421a8ed412
commit c502602151
2 changed files with 10 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2016-10-18 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/77916
* gimple-ssa-strength-reduction.c (analyze_increments): Reinstate
stopgap fix, as pointers with -1 increment are still broken.
2016-10-18 David Edelsohn <dje.gcc@gmail.com>
* config/rs6000/rs6000.c (rs6000_output_symbol_ref): Move storage

4
gcc/gimple-ssa-strength-reduction.c
View file

@ -2825,6 +2825,10 @@ analyze_increments (slsr_cand_t first_dep, machine_mode mode, bool speed)
&& !POINTER_TYPE_P (first_dep->cand_type)))
incr_vec[i].cost = COST_NEUTRAL;
/* FIXME: Still having trouble with pointers with a -1 increment. */
else if (incr == -1 && POINTER_TYPE_P (first_dep->cand_type))
incr_vec[i].cost = COST_INFINITE;
/* FORNOW: If we need to add an initializer, give up if a cast from
the candidate's type to its stride's type can lose precision.
This could eventually be handled better by expressly retaining the