[gcc r12-3070] Fix ICE.

[gcc r12-3070] Fix ICE.

[hongtao Liu]

https://gcc.gnu.org/g:70c7ab5c487f392e04907ce8f22eb454b8d3c4ff

commit r12-3070-g70c7ab5c487f392e04907ce8f22eb454b8d3c4ff
Author: liuhongt <hongtao.liu@intel.com>
Date:   Mon Aug 23 17:00:36 2021 +0800

    Fix ICE.
    
    gcc/ChangeLog:
    
            PR target/102016
            * config/i386/sse.md (*avx512f_pshufb_truncv8hiv8qi_1): Add
            TARGET_AVX512BW to condition.
    
    gcc/testsuite/ChangeLog:
    
            PR target/102016
            * gcc.target/i386/pr102016.c: New test.

Diff:
---
 gcc/config/i386/sse.md                   |  2 +-
 gcc/testsuite/gcc.target/i386/pr102016.c | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index 13889687793..95f95823ea3 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -11256,7 +11256,7 @@
 	       (match_operand:V16QI 2 "pshufb_truncv8hiv8qi_operand")]
 	   UNSPEC_PSHUFB) 0)
 	  (parallel [(const_int 0)])))]
-  "TARGET_AVX512VL && ix86_pre_reload_split ()"
+  "TARGET_AVX512VL && TARGET_AVX512BW && ix86_pre_reload_split ()"
   "#"
   "&& 1"
   [(const_int 0)]
diff --git a/gcc/testsuite/gcc.target/i386/pr102016.c b/gcc/testsuite/gcc.target/i386/pr102016.c
new file mode 100644
index 00000000000..2ff75cb898a
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr102016.c
@@ -0,0 +1,10 @@
+/* { dg-do compile } */
+/* { dg-options "-mavx512vl -O2" } */
+typedef char v8qi __attribute__((vector_size (8)));
+typedef char v16qi __attribute__((vector_size (16)));
+v8qi
+foo_wb_128 (v16qi x)
+{
+  return __builtin_shufflevector (x, x,
+				  0, 2, 4, 6, 8, 10, 12, 14);
+}