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[10/10] Add a vect_masked_store target selector
- From: Richard Sandiford <richard dot sandiford at linaro dot org>
- To: gcc-patches at gcc dot gnu dot org
- Date: Fri, 03 Nov 2017 16:23:24 +0000
- Subject: [10/10] Add a vect_masked_store target selector
- Authentication-results: sourceware.org; auth=none
- References: <87inerqqyz.fsf@linaro.org>
This patch adds a target selector that says whether the target
supports IFN_MASK_STORE.
2017-11-03 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* doc/sourcebuild.texi (vect_masked_store): Document.
gcc/testsuite/
* lib/target-supports.exp (check_effective_target_vect_masked_store):
New proc.
* gcc.dg/vect/vect-cselim-1.c (foo): Mention that the second loop
is vectorizable with masked stores. Update scan-tree-dump-times
accordingly.
Index: gcc/doc/sourcebuild.texi
===================================================================
--- gcc/doc/sourcebuild.texi 2017-11-03 16:06:56.516976666 +0000
+++ gcc/doc/sourcebuild.texi 2017-11-03 16:07:00.028331940 +0000
@@ -1403,6 +1403,9 @@ Target supports hardware vectors of @cod
@item vect_long_long
Target supports hardware vectors of @code{long long}.
+@item vect_masked_store
+Target supports vector masked stores.
+
@item vect_aligned_arrays
Target aligns arrays to vector alignment boundary.
Index: gcc/testsuite/lib/target-supports.exp
===================================================================
--- gcc/testsuite/lib/target-supports.exp 2017-11-03 16:06:56.519977825 +0000
+++ gcc/testsuite/lib/target-supports.exp 2017-11-03 16:07:00.029332326 +0000
@@ -6433,6 +6433,12 @@ proc check_effective_target_vect_load_la
return $et_vect_load_lanes
}
+# Return 1 if the target supports vector masked stores.
+
+proc check_effective_target_vect_masked_store { } {
+ return 0
+}
+
# Return 1 if the target supports vector conditional operations, 0 otherwise.
proc check_effective_target_vect_condition { } {
Index: gcc/testsuite/gcc.dg/vect/vect-cselim-1.c
===================================================================
--- gcc/testsuite/gcc.dg/vect/vect-cselim-1.c 2015-06-02 23:53:38.000000000 +0100
+++ gcc/testsuite/gcc.dg/vect/vect-cselim-1.c 2017-11-03 16:07:00.028331940 +0000
@@ -38,7 +38,7 @@ foo ()
}
}
- /* Not vectorizable. */
+ /* Only vectorizable with masked stores. */
for (i = 0; i < N; i++)
{
c = in1[i].b;
@@ -82,4 +82,5 @@ main (void)
return 0;
}
-/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail { { vect_no_align && { ! vect_hw_misalign } } || { ! vect_strided2 } } } } } */
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { ! vect_masked_store } xfail { { vect_no_align && { ! vect_hw_misalign } } || { ! vect_strided2 } } } } } */
+/* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" { target { vect_masked_store } } } } */