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Print the type of alias check in a dump message

Browse source 
This patch prints a message to say how an alias check is being
implemented.

2019-11-16  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-data-ref.c (create_intersect_range_checks_index)
	(create_intersect_range_checks): Print dump messages.

gcc/testsuite/
	* gcc.dg/vect/vect-alias-check-1.c: Test for the type of alias check.
	* gcc.dg/vect/vect-alias-check-8.c: Likewise.
	* gcc.dg/vect/vect-alias-check-9.c: Likewise.
	* gcc.dg/vect/vect-alias-check-10.c: Likewise.
	* gcc.dg/vect/vect-alias-check-11.c: Likewise.
	* gcc.dg/vect/vect-alias-check-12.c: Likewise.
	* gcc.dg/vect/vect-alias-check-13.c: Likewise.
	* gcc.dg/vect/vect-alias-check-14.c: Likewise.
	* gcc.dg/vect/vect-alias-check-15.c: Likewise.
	* gcc.dg/vect/vect-alias-check-16.c: Likewise.
	* gcc.dg/vect/vect-alias-check-17.c: Likewise.

From-SVN: r278353
This commit is contained in:
Richard Sandiford 2019-11-16 11:42:53 +00:00 • committed by Richard Sandiford
parent cad984b289
commit b4d1b63573
14 changed files with 48 additions and 0 deletions
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5
gcc/ChangeLog
View file

@ -1,3 +1,8 @@
2019-11-16 Richard Sandiford <richard.sandiford@arm.com>
* tree-data-ref.c (create_intersect_range_checks_index)
(create_intersect_range_checks): Print dump messages.
2019-11-16 Richard Sandiford <richard.sandiford@arm.com>
* tree-data-ref.c (dump_alias_pair): New function.

14
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,17 @@
2019-11-16 Richard Sandiford <richard.sandiford@arm.com>
* gcc.dg/vect/vect-alias-check-1.c: Test for the type of alias check.
* gcc.dg/vect/vect-alias-check-8.c: Likewise.
* gcc.dg/vect/vect-alias-check-9.c: Likewise.
* gcc.dg/vect/vect-alias-check-10.c: Likewise.
* gcc.dg/vect/vect-alias-check-11.c: Likewise.
* gcc.dg/vect/vect-alias-check-12.c: Likewise.
* gcc.dg/vect/vect-alias-check-13.c: Likewise.
* gcc.dg/vect/vect-alias-check-14.c: Likewise.
* gcc.dg/vect/vect-alias-check-15.c: Likewise.
* gcc.dg/vect/vect-alias-check-16.c: Likewise.
* gcc.dg/vect/vect-alias-check-17.c: Likewise.
2019-11-16 Richard Sandiford <richard.sandiford@arm.com>
* gcc.dg/vect/vect-alias-check-8.c: Test for the RAW flag.

2
gcc/testsuite/gcc.dg/vect/vect-alias-check-1.c
View file

@ -15,3 +15,5 @@ fn1 ()
}
/* { dg-final { scan-tree-dump "improved number of alias checks from \[0-9\]* to 1" "vect" } } */
/* { dg-final { scan-tree-dump "using an address-based overlap test" "vect" } } */
/* { dg-final { scan-tree-dump-not "using an index-based" "vect" } } */

3
gcc/testsuite/gcc.dg/vect/vect-alias-check-10.c
View file

@ -65,3 +65,6 @@ main (void)
FOR_EACH_TYPE (DO_TEST)
return 0;
}
/* { dg-final { scan-tree-dump-not "using an address-based" "vect" } } */
/* { dg-final { scan-tree-dump-not "using an index-based" "vect" } } */

3
gcc/testsuite/gcc.dg/vect/vect-alias-check-11.c
View file

@ -95,3 +95,6 @@ main (void)
/* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* \* 8[)]* is outside \(-24, 24\)} "vect" { target vect_double } } } */
/* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* step[^ ]* \* 8[)]* is outside \(-32, 32\)} "vect" { target vect_double } } } */
/* { dg-final { scan-tree-dump {run-time check [^\n]* abs \([^*]* \* 8[)]* >= 32} "vect" { target vect_double } } } */
/* { dg-final { scan-tree-dump-not "using an address-based" "vect" } } */
/* { dg-final { scan-tree-dump-not "using an index-based" "vect" } } */

3
gcc/testsuite/gcc.dg/vect/vect-alias-check-12.c
View file

@ -95,3 +95,6 @@ main (void)
/* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* [_a-z][^ ]* \* 8[)]* is outside \[0, 24\)} "vect" { target vect_double } } } */
/* { dg-final { scan-tree-dump {no alias between [^\n]* when [^\n]* [_a-z][^ ]* \* 8[)]* is outside \[0, 32\)} "vect" { target vect_double } } } */
/* { dg-final { scan-tree-dump {run-time check [^\n]* unsigned \([^*]* \* 8[)]* >= 32} "vect" { target vect_double } } } */
/* { dg-final { scan-tree-dump-not "using an address-based" "vect" } } */
/* { dg-final { scan-tree-dump-not "using an index-based" "vect" } } */

2
gcc/testsuite/gcc.dg/vect/vect-alias-check-13.c
View file

@ -18,4 +18,6 @@ f2 (int *x, long step2, int n)
/* { dg-final { scan-tree-dump {need run-time check that [^\n]*step1[^\n]* is nonzero} "vect" } } */
/* { dg-final { scan-tree-dump-not {need run-time check that [^\n]*step2[^\n]* is nonzero} "vect" } } */
/* { dg-final { scan-tree-dump-not "using an address-based" "vect" } } */
/* { dg-final { scan-tree-dump-not "using an index-based" "vect" } } */
/* { dg-final { scan-tree-dump-times {LOOP VECTORIZED} 2 "vect" } } */

2
gcc/testsuite/gcc.dg/vect/vect-alias-check-14.c
View file

@ -60,3 +60,5 @@ main (void)
/* { dg-final { scan-tree-dump {flags: *WAR\n} "vect" { target vect_int } } } */
/* { dg-final { scan-tree-dump-not {flags: [^\n]*ARBITRARY\n} "vect" } } */
/* { dg-final { scan-tree-dump "using an address-based overlap test" "vect" } } */
/* { dg-final { scan-tree-dump-not "using an index-based" "vect" } } */

2
gcc/testsuite/gcc.dg/vect/vect-alias-check-15.c
View file

@ -57,3 +57,5 @@ main (void)
}
/* { dg-final { scan-tree-dump {flags: *WAW\n} "vect" { target vect_int } } } */
/* { dg-final { scan-tree-dump "using an address-based overlap test" "vect" } } */
/* { dg-final { scan-tree-dump-not "using an index-based" "vect" } } */

2
gcc/testsuite/gcc.dg/vect/vect-alias-check-16.c
View file

@ -62,3 +62,5 @@ main (void)
}
/* { dg-final { scan-tree-dump {flags: *RAW\n} "vect" { target vect_int } } } */
/* { dg-final { scan-tree-dump "using an address-based overlap test" "vect" } } */
/* { dg-final { scan-tree-dump-not "using an index-based" "vect" } } */

2
gcc/testsuite/gcc.dg/vect/vect-alias-check-17.c
View file

@ -11,3 +11,5 @@ f (struct s *s1, int a, int b)
}
/* { dg-final { scan-tree-dump {flags: *[^\n]*MIXED_STEPS} "vect" } } */
/* { dg-final { scan-tree-dump "using an address-based overlap test" "vect" } } */
/* { dg-final { scan-tree-dump-not "using an index-based" "vect" } } */

2
gcc/testsuite/gcc.dg/vect/vect-alias-check-8.c
View file

@ -60,3 +60,5 @@ main (void)
}
/* { dg-final { scan-tree-dump {flags: *WAR\n} "vect" { target vect_int } } } */
/* { dg-final { scan-tree-dump "using an index-based overlap test" "vect" } } */
/* { dg-final { scan-tree-dump-not "using an address-based" "vect" } } */

2
gcc/testsuite/gcc.dg/vect/vect-alias-check-9.c
View file

@ -53,3 +53,5 @@ main (void)
}
/* { dg-final { scan-tree-dump {flags: [^\n]*ARBITRARY\n} "vect" { target vect_int } } } */
/* { dg-final { scan-tree-dump "using an address-based overlap test" "vect" } } */
/* { dg-final { scan-tree-dump-not "using an index-based" "vect" } } */

4
gcc/tree-data-ref.c
View file

@ -1889,6 +1889,8 @@ create_intersect_range_checks_index (class loop *loop, tree *cond_expr,
else
*cond_expr = part_cond_expr;
}
if (dump_enabled_p ())
dump_printf (MSG_NOTE, "using an index-based overlap test\n");
return true;
}
@ -2036,6 +2038,8 @@ create_intersect_range_checks (class loop *loop, tree *cond_expr,
= fold_build2 (TRUTH_OR_EXPR, boolean_type_node,
fold_build2 (cmp_code, boolean_type_node, seg_a_max, seg_b_min),
fold_build2 (cmp_code, boolean_type_node, seg_b_max, seg_a_min));
if (dump_enabled_p ())
dump_printf (MSG_NOTE, "using an address-based overlap test\n");
}
/* Create a conditional expression that represents the run-time checks for