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* [gcc r13-2725] i386: Fixed vec_init_dup_v16bf [PR106887]
@ 2022-09-20 1:30 Kong Lingling
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From: Kong Lingling @ 2022-09-20 1:30 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:78260b9a9c0bf5a4495320466e2cd1c259504905
commit r13-2725-g78260b9a9c0bf5a4495320466e2cd1c259504905
Author: konglin1 <lingling.kong@intel.com>
Date: Fri Sep 16 15:59:19 2022 +0800
i386: Fixed vec_init_dup_v16bf [PR106887]
gcc/ChangeLog:
PR target/106887
* config/i386/i386-expand.cc (ix86_expand_vector_init_duplicate):
Fixed V16BF mode case.
gcc/testsuite/ChangeLog:
PR target/106887
* gcc.target/i386/vect-bfloat16-2c.c: New test.
Diff:
---
gcc/config/i386/i386-expand.cc | 43 +++++++++++---
gcc/testsuite/gcc.target/i386/vect-bfloat16-2c.c | 76 ++++++++++++++++++++++++
2 files changed, 112 insertions(+), 7 deletions(-)
diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc
index d7b49c99dc8..5334363e235 100644
--- a/gcc/config/i386/i386-expand.cc
+++ b/gcc/config/i386/i386-expand.cc
@@ -15109,9 +15109,24 @@ ix86_expand_vector_init_duplicate (bool mmx_ok, machine_mode mode,
return ix86_vector_duplicate_value (mode, target, val);
else
{
- machine_mode hvmode = (mode == V16HImode ? V8HImode
- : mode == V16HFmode ? V8HFmode
- : V16QImode);
+ machine_mode hvmode;
+ switch (mode)
+ {
+ case V16HImode:
+ hvmode = V8HImode;
+ break;
+ case V16HFmode:
+ hvmode = V8HFmode;
+ break;
+ case V16BFmode:
+ hvmode = V8BFmode;
+ break;
+ case V32QImode:
+ hvmode = V16QImode;
+ break;
+ default:
+ gcc_unreachable ();
+ }
rtx x = gen_reg_rtx (hvmode);
ok = ix86_expand_vector_init_duplicate (false, hvmode, x, val);
@@ -15130,10 +15145,24 @@ ix86_expand_vector_init_duplicate (bool mmx_ok, machine_mode mode,
return ix86_vector_duplicate_value (mode, target, val);
else
{
- machine_mode hvmode = (mode == V32HImode ? V16HImode
- : mode == V32HFmode ? V16HFmode
- : mode == V32BFmode ? V16BFmode
- : V32QImode);
+ machine_mode hvmode;
+ switch (mode)
+ {
+ case V32HImode:
+ hvmode = V16HImode;
+ break;
+ case V32HFmode:
+ hvmode = V16HFmode;
+ break;
+ case V32BFmode:
+ hvmode = V16BFmode;
+ break;
+ case V64QImode:
+ hvmode = V32QImode;
+ break;
+ default:
+ gcc_unreachable ();
+ }
rtx x = gen_reg_rtx (hvmode);
ok = ix86_expand_vector_init_duplicate (false, hvmode, x, val);
diff --git a/gcc/testsuite/gcc.target/i386/vect-bfloat16-2c.c b/gcc/testsuite/gcc.target/i386/vect-bfloat16-2c.c
new file mode 100644
index 00000000000..bead94e46a1
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/vect-bfloat16-2c.c
@@ -0,0 +1,76 @@
+/* { dg-do compile } */
+/* { dg-options "-mf16c -msse2 -mno-avx2 -O2" } */
+
+typedef __bf16 v8bf __attribute__ ((__vector_size__ (16)));
+typedef __bf16 v16bf __attribute__ ((__vector_size__ (32)));
+
+#define VEC_EXTRACT(V,S,IDX) \
+ S \
+ __attribute__((noipa)) \
+ vec_extract_##V##_##IDX (V v) \
+ { \
+ return v[IDX]; \
+ }
+
+#define VEC_SET(V,S,IDX) \
+ V \
+ __attribute__((noipa)) \
+ vec_set_##V##_##IDX (V v, S s) \
+ { \
+ v[IDX] = s; \
+ return v; \
+ }
+
+v8bf
+vec_init_v8bf (__bf16 a1, __bf16 a2, __bf16 a3, __bf16 a4,
+ __bf16 a5, __bf16 a6, __bf16 a7, __bf16 a8)
+{
+ return __extension__ (v8bf) {a1, a2, a3, a4, a5, a6, a7, a8};
+}
+
+v16bf
+vec_init_v16bf (__bf16 a1, __bf16 a2, __bf16 a3, __bf16 a4,
+ __bf16 a5, __bf16 a6, __bf16 a7, __bf16 a8,
+ __bf16 a9, __bf16 a10, __bf16 a11, __bf16 a12,
+ __bf16 a13, __bf16 a14, __bf16 a15, __bf16 a16)
+{
+ return __extension__ (v16bf) {a1, a2, a3, a4, a5, a6, a7, a8,
+ a9, a10, a11, a12, a13, a14, a15, a16};
+}
+
+v8bf
+vec_init_dup_v8bf (__bf16 a1)
+{
+ return __extension__ (v8bf) {a1, a1, a1, a1, a1, a1, a1, a1};
+}
+
+v16bf
+vec_init_dup_v16bf (__bf16 a1)
+{
+ return __extension__ (v16bf) {a1, a1, a1, a1, a1, a1, a1, a1,
+ a1, a1, a1, a1, a1, a1, a1, a1};
+}
+
+/* { dg-final { scan-assembler-times "vpunpcklwd" 12 } } */
+/* { dg-final { scan-assembler-times "vpunpckldq" 6 } } */
+/* { dg-final { scan-assembler-times "vpunpcklqdq" 3 } } */
+
+VEC_EXTRACT (v8bf, __bf16, 0);
+VEC_EXTRACT (v8bf, __bf16, 4);
+VEC_EXTRACT (v16bf, __bf16, 0);
+VEC_EXTRACT (v16bf, __bf16, 3);
+VEC_EXTRACT (v16bf, __bf16, 8);
+VEC_EXTRACT (v16bf, __bf16, 15);
+/* { dg-final { scan-assembler-times "vpsrldq\[\t ]*\\\$8" 1 } } */
+/* { dg-final { scan-assembler-times "vpsrldq\[\t ]*\\\$6" 1 } } */
+/* { dg-final { scan-assembler-times "vpsrldq\[\t ]*\\\$14" 1 } } */
+/* { dg-final { scan-assembler-times "vextract" 4 } } */
+
+VEC_SET (v8bf, __bf16, 4);
+VEC_SET (v16bf, __bf16, 3);
+VEC_SET (v16bf, __bf16, 8);
+VEC_SET (v16bf, __bf16, 15);
+/* { dg-final { scan-assembler-times "vpblendw" 3 { target { ! ia32 } } } } */
+
+/* { dg-final { scan-assembler-times "vpinsrw" 30 { target ia32 } } } */
+
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