re PR target/85508 (runtime error in config/i386/i386.c)

	PR target/85508
	* config/i386/i386.c (ix86_expand_vector_init_one_var): Use UINTVAL
	instead of INTVAL when shifting x left.

	* gcc.target/i386/pr85508.c: New test.

From-SVN: r259594

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index dcf0d0b..767455f 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2018-04-24  Jakub Jelinek  <jakub@redhat.com>
+
+       PR target/85508
+       * config/i386/i386.c (ix86_expand_vector_init_one_var): Use UINTVAL
+       instead of INTVAL when shifting x left.
+
 2018-04-24  Andreas Krebbel  <krebbel@linux.ibm.com>
 
        PR tree-optimization/85478

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 19d1c30..fada22b 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -43194,7 +43194,7 @@ ix86_expand_vector_init_one_var (bool mmx_ok, machine_mode mode,
       else
        {
          var = convert_modes (HImode, QImode, var, true);
-         x = gen_int_mode (INTVAL (x) << 8, HImode);
+         x = gen_int_mode (UINTVAL (x) << 8, HImode);
        }
       if (x != const0_rtx)
        var = expand_simple_binop (HImode, IOR, var, x, var,

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 8c92593..65c4d61 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-04-24  Jakub Jelinek  <jakub@redhat.com>
+
+       PR target/85508
+       * gcc.target/i386/pr85508.c: New test.
+
 2018-04-24  Andreas Krebbel  <krebbel@linux.ibm.com>
 
        PR tree-optimization/85478

diff --git a/gcc/testsuite/gcc.target/i386/pr85508.c b/gcc/testsuite/gcc.target/i386/pr85508.c
new file mode 100644 (file)
index 0000000..a75a38f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr85508.c
@@ -0,0 +1,12 @@
+/* PR target/85508 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -msse2" } */
+
+typedef signed char V __attribute__((vector_size (16)));
+signed char c;
+
+V
+foo (void)
+{
+  return (V) { c, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
+}