* [PATCH] tree-optimization/102572 - fix gathers with invariant mask
@ 2021-10-12 11:58 Richard Biener
0 siblings, 0 replies; only message in thread
From: Richard Biener @ 2021-10-12 11:58 UTC (permalink / raw)
To: gcc-patches
This fixes the vector def gathering for invariant masks which
failed to pass in the desired vector type resulting in a non-mask
type to be generate.
Bootstrap and regtest running on x86_64-unknmown-linux-gnu.
2021-10-12 Richard Biener <rguenther@suse.de>
PR tree-optimization/102572
* tree-vect-stmts.c (vect_build_gather_load_calls): When
gathering the vectorized defs for the mask pass in the
desired mask vector type so invariants will be handled
correctly.
* g++.dg/vect/pr102572.cc: New testcase.
---
| 14 ++++++++++++++
| 2 +-
2 files changed, 15 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/g++.dg/vect/pr102572.cc
--git a/gcc/testsuite/g++.dg/vect/pr102572.cc b/gcc/testsuite/g++.dg/vect/pr102572.cc
new file mode 100644
index 00000000000..0a713081537
--- /dev/null
+++ b/gcc/testsuite/g++.dg/vect/pr102572.cc
@@ -0,0 +1,14 @@
+// { dg-do compile }
+// { dg-additional-options "-O3" }
+// { dg-additional-options "-march=skylake-avx512" { target x86_64-*-* i?86-*-* } }
+
+int a, b, c, f;
+void g(bool h, int d[][5])
+{
+ for (short i = f; i; i += 1)
+ {
+ a = h && d[0][i];
+ for (int j = 0; j < 4; j += c)
+ b = 0;
+ }
+}
--git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c
index a9c9e3d7c37..f5e1941f8ad 100644
--- a/gcc/tree-vect-stmts.c
+++ b/gcc/tree-vect-stmts.c
@@ -2791,7 +2791,7 @@ vect_build_gather_load_calls (vec_info *vinfo, stmt_vec_info stmt_info,
if (mask)
vect_get_vec_defs_for_operand (vinfo, stmt_info,
modifier == NARROW ? ncopies / 2 : ncopies,
- mask, &vec_masks);
+ mask, &vec_masks, masktype);
for (int j = 0; j < ncopies; ++j)
{
tree op, var;
--
2.31.1
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2021-10-12 11:58 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-10-12 11:58 [PATCH] tree-optimization/102572 - fix gathers with invariant mask Richard Biener
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).