Using gen_int_mode instead of GEN_INT to avoid ICE caused by type promotion.

2020-07-22  Hongtao Liu  <hongtao.liu@intel.com>

gcc/
	PR target/96262
	* config/i386/i386-expand.c
	(ix86_expand_vec_shift_qihi_constant): Refine.

gcc/testsuite/
	* gcc.target/i386/pr96262-1.c: New test.

diff --git a/gcc/config/i386/i386-expand.c b/gcc/config/i386/i386-expand.c
index 61618636cffe3593c2fc575cf7f36461e73783f8..a284f7e5bb488db044bb9bc13980597dd15d51c8 100644 (file)
--- a/gcc/config/i386/i386-expand.c
+++ b/gcc/config/i386/i386-expand.c
@@ -19604,7 +19604,7 @@ bool
 ix86_expand_vec_shift_qihi_constant (enum rtx_code code, rtx dest, rtx op1, rtx op2)
 {
   machine_mode qimode, himode;
-  unsigned int and_constant, xor_constant;
+  HOST_WIDE_INT and_constant, xor_constant;
   HOST_WIDE_INT shift_amount;
   rtx vec_const_and, vec_const_xor;
   rtx tmp, op1_subreg;
@@ -19679,7 +19679,7 @@ ix86_expand_vec_shift_qihi_constant (enum rtx_code code, rtx dest, rtx op1, rtx
   emit_move_insn (dest, simplify_gen_subreg (qimode, tmp, himode, 0));
   emit_move_insn (vec_const_and,
                  ix86_build_const_vector (qimode, true,
-                                          GEN_INT (and_constant)));
+                                          gen_int_mode (and_constant, QImode)));
   emit_insn (gen_and (dest, dest, vec_const_and));
 
   /* For ASHIFTRT, perform extra operation like
@@ -19690,7 +19690,7 @@ ix86_expand_vec_shift_qihi_constant (enum rtx_code code, rtx dest, rtx op1, rtx
       vec_const_xor = gen_reg_rtx (qimode);
       emit_move_insn (vec_const_xor,
                      ix86_build_const_vector (qimode, true,
-                                              GEN_INT (xor_constant)));
+                                              gen_int_mode (xor_constant, QImode)));
       emit_insn (gen_xor (dest, dest, vec_const_xor));
       emit_insn (gen_sub (dest, dest, vec_const_xor));
     }

diff --git a/gcc/testsuite/gcc.target/i386/pr96262-1.c b/gcc/testsuite/gcc.target/i386/pr96262-1.c
new file mode 100644 (file)
index 0000000..1825388
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr96262-1.c
@@ -0,0 +1,11 @@
+/* PR target/96262 */
+/* { dg-do compile } */
+/* { dg-options "-mavx512bw -O" } */
+
+typedef char __attribute__ ((__vector_size__ (64))) V;
+
+V
+foo (V v)
+{
+  return ~(v << 1);
+}