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phi-opt: Disable parts of it for -Og 

While working on the cselim limited part of phiopt, I noticed
that the debugging experience for -Og case would cause jumping
execution in some cases. So this disables the store and operation
factoring parts for -Og since those 2 can cause the line information
of the debugging to be off.

Bootstrapped and tested on x86_64-linux-gnu.

gcc/ChangeLog:

	* tree-ssa-phiopt.cc (pass_phiopt::execute): Disable
	cselim-limited and factor out operations for -Og.

Signed-off-by: Andrew Pinski <andrew.pinski@oss.qualcomm.com>
This commit is contained in:
Andrew Pinski 2025-10-13 16:47:55 -07:00
parent 05393afc13
commit 6b5e2f6e5b
1 changed files with 4 additions and 3 deletions
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7
gcc/tree-ssa-phiopt.cc
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@ -4569,8 +4569,8 @@ pass_phiopt::execute (function *)
hoist_adjacent_loads (bb, bb1, bb2, bb3);
/* Try to see if there are only store in each side of the if
and try to remove that. */
if (EDGE_COUNT (bb3->preds) == 2)
and try to remove that; don't do this for -Og. */
if (EDGE_COUNT (bb3->preds) == 2 && !optimize_debug)
while (cond_if_else_store_replacement_limited (bb1, bb2, bb3))
;
}
@ -4586,7 +4586,8 @@ pass_phiopt::execute (function *)
/* Factor out operations from the phi if possible. */
if (single_pred_p (bb1)
&& EDGE_COUNT (merge->preds) == 2)
&& EDGE_COUNT (merge->preds) == 2
&& !optimize_debug)
{
for (gsi = gsi_start (phis); !gsi_end_p (gsi); )
{