x86: Handle V16BF in ix86_avx256_split_vector_move_misalign

Handle E_V16BFmode in ix86_avx256_split_vector_move_misalign and add
V16BF to V_256H iterator.

gcc/

	PR target/106748
	* config/i386/i386-expand.cc
	(ix86_avx256_split_vector_move_misalign): Handle E_V16BFmode.
	* config/i386/sse.md (V_256H): Add V16BF.

gcc/testsuite/

	PR target/106748
	* gcc.target/i386/pr106748.c: New test.

diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc
index 4b216308a18b414dd99f201315ca6f9d0a019671..836ebc82d670035524cfda427d671bc6c29e89a2 100644 (file)
--- a/gcc/config/i386/i386-expand.cc
+++ b/gcc/config/i386/i386-expand.cc
@@ -745,6 +745,10 @@ ix86_avx256_split_vector_move_misalign (rtx op0, rtx op1)
       extract = gen_avx_vextractf128v32qi;
       mode = V16QImode;
       break;
+    case E_V16BFmode:
+      extract = gen_avx_vextractf128v16bf;
+      mode = V8BFmode;
+      break;
     case E_V16HFmode:
       extract = gen_avx_vextractf128v16hf;
       mode = V8HFmode;

diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index e6ab3c92dcf72831f0d07302a1633dd408209f4d..259048481b63ea18cc58084feb7786ba0b1b8bfe 100644 (file)
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -297,9 +297,9 @@
 (define_mode_iterator V_256
   [V32QI V16HI V8SI V4DI V8SF V4DF])
 
-;; All 256bit vector modes including HF vector mode
+;; All 256bit vector modes including HF/BF vector modes
 (define_mode_iterator V_256H
-  [V32QI V16HI V8SI V4DI V8SF V4DF V16HF])
+  [V32QI V16HI V8SI V4DI V8SF V4DF V16HF V16BF])
 
 ;; All 128bit and 256bit vector modes
 (define_mode_iterator V_128_256

diff --git a/gcc/testsuite/gcc.target/i386/pr106748.c b/gcc/testsuite/gcc.target/i386/pr106748.c
new file mode 100644 (file)
index 0000000..6388b1d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr106748.c
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-O0 -mavx256-split-unaligned-store -mavx -fpack-struct" } */
+
+typedef __bf16 __m256bf16 __attribute__((__vector_size__(32)));
+typedef struct {
+  __m256bf16 _m256bf16[1];
+} YMM_T;
+
+struct {
+  YMM_T ymm0;
+} fregs;
+
+__m256bf16 do_test_u3b_0_0;
+int do_test_i;
+
+void
+do_test()
+{
+  (&fregs.ymm0)[do_test_i]._m256bf16[0] = do_test_u3b_0_0;
+}