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Add SCEV cprop dumping.

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From-SVN: r198963
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Marek Polacek 2013-05-16 09:23:47 +00:00 • committed by Marek Polacek
parent f5b6d0d1d2
commit 3571dde6ea
2 changed files with 21 additions and 0 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2013-05-16 Marek Polacek <polacek@redhat.com>
* tree-scalar-evolution.c (scev_const_prop): Add more dumps.
2013-05-15 Leif Ekblad <leif@rdos.net>
* config/i386/i386.c (ix86_decompose_address): Use

17
gcc/tree-scalar-evolution.c
View file

@ -3385,12 +3385,24 @@ scev_const_prop (void)
to be turned into n %= 45. */
|| expression_expensive_p (def))
{
if (dump_file && (dump_flags & TDF_DETAILS))
{
fprintf (dump_file, "not replacing:\n ");
print_gimple_stmt (dump_file, phi, 0, 0);
fprintf (dump_file, "\n");
}
gsi_next (&psi);
continue;
}
/* Eliminate the PHI node and replace it by a computation outside
the loop. */
if (dump_file)
{
fprintf (dump_file, "\nfinal value replacement:\n ");
print_gimple_stmt (dump_file, phi, 0, 0);
fprintf (dump_file, " with\n ");
}
def = unshare_expr (def);
remove_phi_node (&psi, false);
@ -3398,6 +3410,11 @@ scev_const_prop (void)
true, GSI_SAME_STMT);
ass = gimple_build_assign (rslt, def);
gsi_insert_before (&bsi, ass, GSI_SAME_STMT);
if (dump_file)
{
print_gimple_stmt (dump_file, ass, 0, 0);
fprintf (dump_file, "\n");
}
}
}
return 0;