[PATCH] [i386] Remove register restriction on operands for andnot insn

[Haochen Jiang via Gcc-patches]

Hi all,

This patch removes the register restriction on operands for andnot insn so that 
it can be used from memory.

Regtested on x86_64-pc-linux-gnu. Ok for trunk?

BRs,
Haochen

gcc/ChangeLog:

        PR target/53652
        * config/i386/sse.md (*andnot<mode>3): Remove register restriction.

gcc/testsuite/ChangeLog:

        PR target/53652
        * gcc.target/i386/pr53652-1.c: New test.
---
 gcc/config/i386/sse.md                    |  2 +-
 gcc/testsuite/gcc.target/i386/pr53652-1.c | 16 ++++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/gcc.target/i386/pr53652-1.c

diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index 0997d9edf9d..4448b875d35 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -16630,7 +16630,7 @@
 (define_insn "*andnot<mode>3"
   [(set (match_operand:VI 0 "register_operand" "=x,x,v")
        (and:VI
-         (not:VI (match_operand:VI 1 "register_operand" "0,x,v"))
+         (not:VI (match_operand:VI 1 "vector_operand" "0,x,v"))
          (match_operand:VI 2 "bcst_vector_operand" "xBm,xm,vmBr")))]
   "TARGET_SSE"
 {
diff --git a/gcc/testsuite/gcc.target/i386/pr53652-1.c 
b/gcc/testsuite/gcc.target/i386/pr53652-1.c
new file mode 100644
index 00000000000..bd07ee29f4d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr53652-1.c
@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -msse2" } */
+/* { dg-final { scan-assembler-times "pandn\[ \\t\]" 2 } } */
+/* { dg-final { scan-assembler-not "vpternlogq\[ \\t\]" } } */
+
+typedef unsigned long long vec __attribute__((vector_size (16)));
+vec g;
+vec f1 (vec a, vec b)
+{
+  return ~a&b;
+}
+vec f2 (vec a, vec b)
+{
+  return ~g&b;
+}
+
-- 
2.18.1