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* [gcc r12-1266] i386: Add init pattern for V4QI vectors [PR100637]
@ 2021-06-07 21:00 Uros Bizjak
0 siblings, 0 replies; only message in thread
From: Uros Bizjak @ 2021-06-07 21:00 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:64735dc923e0a1a2e04c5313471d91ca8b954e9a
commit r12-1266-g64735dc923e0a1a2e04c5313471d91ca8b954e9a
Author: Uros Bizjak <ubizjak@gmail.com>
Date: Mon Jun 7 22:58:15 2021 +0200
i386: Add init pattern for V4QI vectors [PR100637]
2021-06-07 Uroš Bizjak <ubizjak@gmail.com>
gcc/
PR target/100637
* config/i386/i386-expand.c (ix86_expand_vector_init_duplicate):
Handle V4QI mode.
(ix86_expand_vector_init_one_nonzero): Ditto.
(ix86_expand_vector_init_one_var): Ditto.
(ix86_expand_vector_init_general): Ditto.
* config/i386/mmx.md (vec_initv4qiqi): New expander.
gcc/testsuite/
PR target/100637
* gcc.target/i386/pr100637-5b.c: New test.
* gcc.target/i386/pr100637-5w.c: Ditto.
Diff:
---
gcc/config/i386/i386-expand.c | 9 +++++++++
gcc/config/i386/mmx.md | 12 +++++++++++-
gcc/testsuite/gcc.target/i386/pr100637-5b.c | 25 +++++++++++++++++++++++++
gcc/testsuite/gcc.target/i386/pr100637-5w.c | 25 +++++++++++++++++++++++++
4 files changed, 70 insertions(+), 1 deletion(-)
diff --git a/gcc/config/i386/i386-expand.c b/gcc/config/i386/i386-expand.c
index fb0676f1158..c3ce21b4387 100644
--- a/gcc/config/i386/i386-expand.c
+++ b/gcc/config/i386/i386-expand.c
@@ -13733,6 +13733,7 @@ ix86_expand_vector_init_duplicate (bool mmx_ok, machine_mode mode,
return false;
case E_V8QImode:
+ case E_V4QImode:
if (!mmx_ok)
return false;
goto widen;
@@ -13878,6 +13879,9 @@ ix86_expand_vector_init_one_nonzero (bool mmx_ok, machine_mode mode,
case E_V4HImode:
use_vector_set = TARGET_SSE || TARGET_3DNOW_A;
break;
+ case E_V4QImode:
+ use_vector_set = TARGET_SSE4_1;
+ break;
case E_V32QImode:
case E_V16HImode:
use_vector_set = TARGET_AVX;
@@ -14086,6 +14090,10 @@ ix86_expand_vector_init_one_var (bool mmx_ok, machine_mode mode,
break;
wmode = V4HImode;
goto widen;
+ case E_V4QImode:
+ if (TARGET_SSE4_1)
+ break;
+ wmode = V2HImode;
widen:
/* There's no way to set one QImode entry easily. Combine
the variable value with its adjacent constant value, and
@@ -14535,6 +14543,7 @@ quarter:
case E_V8QImode:
case E_V2HImode:
+ case E_V4QImode:
break;
default:
diff --git a/gcc/config/i386/mmx.md b/gcc/config/i386/mmx.md
index c3fd2805f25..0a17a54fad5 100644
--- a/gcc/config/i386/mmx.md
+++ b/gcc/config/i386/mmx.md
@@ -3369,7 +3369,17 @@
(match_operand 1)]
"TARGET_SSE2"
{
- ix86_expand_vector_init (false, operands[0],
+ ix86_expand_vector_init (TARGET_MMX_WITH_SSE, operands[0],
+ operands[1]);
+ DONE;
+})
+
+(define_expand "vec_initv4qiqi"
+ [(match_operand:V2HI 0 "register_operand")
+ (match_operand 1)]
+ "TARGET_SSE2"
+{
+ ix86_expand_vector_init (TARGET_MMX_WITH_SSE, operands[0],
operands[1]);
DONE;
})
diff --git a/gcc/testsuite/gcc.target/i386/pr100637-5b.c b/gcc/testsuite/gcc.target/i386/pr100637-5b.c
new file mode 100644
index 00000000000..3e6cc8ff975
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr100637-5b.c
@@ -0,0 +1,25 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -msse2" } */
+
+typedef char S;
+typedef S V __attribute__((vector_size(4 * sizeof(S))));
+
+V duplicate (S a)
+{
+ return (V) { a, a, a, a };
+}
+
+V one_nonzero (S a)
+{
+ return (V) { 0, a };
+}
+
+V one_var (S a)
+{
+ return (V) { 1, a };
+}
+
+V general (S a, S b, S c, S d)
+{
+ return (V) { a, b, c, d };
+}
diff --git a/gcc/testsuite/gcc.target/i386/pr100637-5w.c b/gcc/testsuite/gcc.target/i386/pr100637-5w.c
new file mode 100644
index 00000000000..3f677385c16
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr100637-5w.c
@@ -0,0 +1,25 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -msse2" } */
+
+typedef short S;
+typedef S V __attribute__((vector_size(2 * sizeof(S))));
+
+V duplicate (S a)
+{
+ return (V) { a, a };
+}
+
+V one_nonzero (S a)
+{
+ return (V) { 0, a };
+}
+
+V one_var (S a)
+{
+ return (V) { 1, a };
+}
+
+V general (S a, S b)
+{
+ return (V) { a, b };
+}
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