[PATCH] Fix an ICE with recent GFNI changes

[Andi Kleen]

From: Andi Kleen <a...@gcc.gnu.org>

Make the expand pattern for operand 1 match the final instruction.

        PR 121658

gcc/ChangeLog:

        * config/i386/sse.md ("<insn><mode>3"): Use
        register_operand for rotate patterns.

gcc/testsuite/ChangeLog:

        * gcc.target/i386/pr121658.c: New test.
---
 gcc/config/i386/sse.md                   | 2 +-
 gcc/testsuite/gcc.target/i386/pr121658.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/gcc.target/i386/pr121658.c

diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index 951ee54589f3..e011f8fe47fa 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -27021,7 +27021,7 @@ (define_expand "cond_<insn><mode>"
 (define_expand "<insn><mode>3"
   [(set (match_operand:VI1_AVX512_3264 0 "register_operand")
        (any_rotate:VI1_AVX512_3264
-         (match_operand:VI1_AVX512_3264 1 "general_operand")
+         (match_operand:VI1_AVX512_3264 1 "register_operand")
          (match_operand:SI 2 "const_int_operand")))]
   "TARGET_GFNI"
 {
diff --git a/gcc/testsuite/gcc.target/i386/pr121658.c 
b/gcc/testsuite/gcc.target/i386/pr121658.c
new file mode 100644
index 000000000000..5fe54601e72f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr121658.c
@@ -0,0 +1,4 @@
+/* { dg-do compile } */
+/* { dg-options "-mgfni -mavx512f -O" } */
+__attribute__((__vector_size__(64))) unsigned char v;
+void foo() { v = (v << 7) | (v >> 1); }
-- 
2.49.0