From: "H.J. Lu" <hjl.tools@gmail.com>
To: gcc-patches@gcc.gnu.org
Subject: [PATCH] Always use TYPE_MODE instead of DECL_MODE for vector field
Date: Thu, 20 Oct 2022 09:57:34 -0700 [thread overview]
Message-ID: <20221020165734.1113688-1-hjl.tools@gmail.com> (raw)
commit e034c5c895722e0092d2239cd8c2991db77d6d39
Author: Jakub Jelinek <jakub@redhat.com>
Date: Sat Dec 2 08:54:47 2017 +0100
PR target/78643
PR target/80583
* expr.c (get_inner_reference): If DECL_MODE of a non-bitfield
is BLKmode for vector field with vector raw mode, use TYPE_MODE
instead of DECL_MODE.
fixed the case where DECL_MODE of a vector field is BLKmode and its
TYPE_MODE is a vector mode because of target attribute. Remove the
BLKmode check for the case where DECL_MODE of a vector field is a vector
mode and its TYPE_MODE is BLKmode because of target attribute.
gcc/
PR target/107304
* expr.c (get_inner_reference): Always use TYPE_MODE for vector
field with vector raw mode.
gcc/testsuite/
PR target/107304
* gcc.target/i386/pr107304.c: New test.
---
gcc/expr.cc | 3 +-
gcc/testsuite/gcc.target/i386/pr107304.c | 39 ++++++++++++++++++++++++
2 files changed, 40 insertions(+), 2 deletions(-)
create mode 100644 gcc/testsuite/gcc.target/i386/pr107304.c
diff --git a/gcc/expr.cc b/gcc/expr.cc
index efe387e6173..9145193c2c1 100644
--- a/gcc/expr.cc
+++ b/gcc/expr.cc
@@ -7905,8 +7905,7 @@ get_inner_reference (tree exp, poly_int64_pod *pbitsize,
/* For vector fields re-check the target flags, as DECL_MODE
could have been set with different target flags than
the current function has. */
- if (mode == BLKmode
- && VECTOR_TYPE_P (TREE_TYPE (field))
+ if (VECTOR_TYPE_P (TREE_TYPE (field))
&& VECTOR_MODE_P (TYPE_MODE_RAW (TREE_TYPE (field))))
mode = TYPE_MODE (TREE_TYPE (field));
}
diff --git a/gcc/testsuite/gcc.target/i386/pr107304.c b/gcc/testsuite/gcc.target/i386/pr107304.c
new file mode 100644
index 00000000000..24d68795e7f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr107304.c
@@ -0,0 +1,39 @@
+/* { dg-do compile } */
+/* { dg-options "-O0 -march=tigerlake" } */
+
+#include <stdint.h>
+
+typedef union {
+ uint8_t v __attribute__((aligned(256))) __attribute__ ((vector_size(64 * sizeof(uint8_t))));
+ uint8_t i[64] __attribute__((aligned(256)));
+} stress_vec_u8_64_t;
+
+typedef struct {
+ struct {
+ stress_vec_u8_64_t s;
+ stress_vec_u8_64_t o;
+ stress_vec_u8_64_t mask1;
+ stress_vec_u8_64_t mask2;
+ } u8_64;
+} stress_vec_data_t;
+
+__attribute__((target_clones("arch=alderlake", "default")))
+void
+stress_vecshuf_u8_64(stress_vec_data_t *data)
+{
+ stress_vec_u8_64_t *__restrict s;
+ stress_vec_u8_64_t *__restrict mask1;
+ stress_vec_u8_64_t *__restrict mask2;
+ register int i;
+
+ s = &data->u8_64.s;
+ mask1 = &data->u8_64.mask1;
+ mask2 = &data->u8_64.mask2;
+
+ for (i = 0; i < 256; i++) { /* was i < 65536 */
+ stress_vec_u8_64_t tmp;
+
+ tmp.v = __builtin_shuffle(s->v, mask1->v);
+ s->v = __builtin_shuffle(tmp.v, mask2->v);
+ }
+}
--
2.37.3
next reply other threads:[~2022-10-20 16:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-20 16:57 H.J. Lu [this message]
2022-10-21 9:33 ` Richard Biener
2022-10-21 16:18 ` H.J. Lu
2022-10-24 7:12 ` Richard Biener
2022-10-24 20:01 ` [PATCH v2] " H.J. Lu
2022-10-25 6:27 ` Richard Biener
2022-11-07 20:07 ` H.J. Lu
2022-11-08 9:42 ` Richard Biener
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