[gcc r12-6061] Improve location for new statements in match-and-simplify phiopt

[Andrew Pinski]

https://gcc.gnu.org/g:d957d250942b130142c62afa1a67146b655b91d7

commit r12-6061-gd957d250942b130142c62afa1a67146b655b91d7
Author: Andrew Pinski <apinski@marvell.com>
Date:   Sat Dec 18 11:52:37 2021 +0000

    Improve location for new statements in match-and-simplify phiopt
    
    Before match-and-simplify was used in phiot, the location of the
    new stamtents were all of that of the conditional, this adds that
    back as I did not realize gimple_simplify didn't do that for you.
    
    OK? Bootstrapped and tested on x86_64 with no regressions.
    
    gcc/ChangeLog:
    
            * tree-ssa-phiopt.c (gimple_simplify_phiopt): Annotate the
            new sequence with the location of the conditional statement.

Diff:
---
 gcc/tree-ssa-phiopt.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gcc/tree-ssa-phiopt.c b/gcc/tree-ssa-phiopt.c
index 3eac9b1ce46..714deab005a 100644
--- a/gcc/tree-ssa-phiopt.c
+++ b/gcc/tree-ssa-phiopt.c
@@ -900,6 +900,8 @@ gimple_simplify_phiopt (bool early_p, tree type, gimple *comp_stmt,
 	  result = maybe_push_res_to_seq (&op, &seq1);
 	  if (result)
 	    {
+	      if (loc != UNKNOWN_LOCATION)
+		annotate_all_with_location (seq1, loc);
 	      gimple_seq_add_seq_without_update (seq, seq1);
 	      return result;
 	    }
@@ -929,6 +931,8 @@ gimple_simplify_phiopt (bool early_p, tree type, gimple *comp_stmt,
 	  result = maybe_push_res_to_seq (&op1, &seq1);
 	  if (result)
 	    {
+	      if (loc != UNKNOWN_LOCATION)
+		annotate_all_with_location (seq1, loc);
 	      gimple_seq_add_seq_without_update (seq, seq1);
 	      return result;
 	    }