[gcc r12-6199] Force_reg operand 1.

[hongtao Liu <liuhongt@gcc.gnu.org>]

https://gcc.gnu.org/g:05da96886efa3ccdcc0e4e337ecd01b2827db213

commit r12-6199-g05da96886efa3ccdcc0e4e337ecd01b2827db213
Author: liuhongt <hongtao.liu@intel.com>
Date:   Tue Jan 4 09:57:23 2022 +0800

    Force_reg operand 1.
    
    Avoid ICE of move pattern from memory to memory.
    
    gcc/ChangeLog:
    
            PR target/103895
            * config/i386/sse.md (*bit_and_float_vector_all_ones):
            Force_reg operand 1 to avoid ICE.
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/i386/pr103895.c: New test.

Diff:
---
 gcc/config/i386/sse.md                   |  3 ++-
 gcc/testsuite/gcc.target/i386/pr103895.c | 16 ++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index 033b60d9aa2..fa1d56ae3e3 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -4750,7 +4750,8 @@
  "TARGET_SSE && ix86_pre_reload_split ()"
  "#"
  "&& 1"
- [(set (match_dup 0) (match_dup 1))])
+ [(set (match_dup 0) (match_dup 1))]
+ "operands[1] = force_reg (<MODE>mode, operands[1]);")
 
 (define_expand "copysign<mode>3"
   [(set (match_dup 4)
diff --git a/gcc/testsuite/gcc.target/i386/pr103895.c b/gcc/testsuite/gcc.target/i386/pr103895.c
new file mode 100644
index 00000000000..40b827806e7
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr103895.c
@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-options "-Og -ffloat-store" } */
+
+#include <emmintrin.h>
+typedef float vFloat __attribute__((__vector_size__(16)));
+float bar_dr;
+vFloat bar_f1;
+void bar() {
+  static vFloat m0;
+  vFloat fa1 = _mm_andnot_ps(m0, bar_f1);
+  __attribute__((__vector_size__(2 * sizeof(double)))) double v3 =
+      _mm_cvtps_pd(fa1);
+  vFloat r1 = _mm_cvtpd_ps(v3);
+  _mm_storeu_ps(&bar_dr, r1);
+}
+