re PR tree-optimization/85467 (ICE: verify_gimple failed: non-trivial conversion...

	PR tree-optimization/85467
	* fold-const.c (fold_ternary_loc) <case BIT_FIELD_REF>: Use
	VECTOR_TYPE_P macro.  If type is vector type, VIEW_CONVERT_EXPR the
	VECTOR_CST element to type.

	* gcc.dg/pr85467.c: New test.

From-SVN: r259507

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6d676a1..d51da37 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2018-04-19  Jakub Jelinek  <jakub@redhat.com>
+
+       PR tree-optimization/85467
+       * fold-const.c (fold_ternary_loc) <case BIT_FIELD_REF>: Use
+       VECTOR_TYPE_P macro.  If type is vector type, VIEW_CONVERT_EXPR the
+       VECTOR_CST element to type.
+
 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
 
        PR target/85397

diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 3a99b66..6472f10 100644 (file)
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -11631,7 +11631,7 @@ fold_ternary_loc (location_t loc, enum tree_code code, tree type,
     case BIT_FIELD_REF:
       if (TREE_CODE (arg0) == VECTOR_CST
          && (type == TREE_TYPE (TREE_TYPE (arg0))
-             || (TREE_CODE (type) == VECTOR_TYPE
+             || (VECTOR_TYPE_P (type)
                  && TREE_TYPE (type) == TREE_TYPE (TREE_TYPE (arg0))))
          && tree_fits_uhwi_p (op1)
          && tree_fits_uhwi_p (op2))
@@ -11653,7 +11653,12 @@ fold_ternary_loc (location_t loc, enum tree_code code, tree type,
              if (TREE_CODE (arg0) == VECTOR_CST)
                {
                  if (n == 1)
-                   return VECTOR_CST_ELT (arg0, idx);
+                   {
+                     tem = VECTOR_CST_ELT (arg0, idx);
+                     if (VECTOR_TYPE_P (type))
+                       tem = fold_build1 (VIEW_CONVERT_EXPR, type, tem);
+                     return tem;
+                   }
 
                  tree_vector_builder vals (type, n, 1);
                  for (unsigned i = 0; i < n; ++i)

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index bff3cd6..a6b2542 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-04-19  Jakub Jelinek  <jakub@redhat.com>
+
+       PR tree-optimization/85467
+       * gcc.dg/pr85467.c: New test.
+
 2018-04-19  Paolo Carlini  <paolo.carlini@oracle.com>
 
        PR c++/84611

diff --git a/gcc/testsuite/gcc.dg/pr85467.c b/gcc/testsuite/gcc.dg/pr85467.c
new file mode 100644 (file)
index 0000000..4895e37
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr85467.c
@@ -0,0 +1,30 @@
+/* PR tree-optimization/85467 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -fno-tree-ccp --param=sccvn-max-scc-size=10" } */
+
+#define TEST(N, T) \
+typedef T V##N __attribute__ ((__vector_size__ (sizeof (T)))); \
+                                                               \
+V##N                                                           \
+bar##N (V##N u, V##N v)                                                \
+{                                                              \
+  do                                                           \
+    v *= (T)((V##N){}[0] ? u[v[0]] : 0);                       \
+  while ((V##N){}[0]);                                         \
+  return v;                                                    \
+}                                                              \
+                                                               \
+void                                                           \
+foo##N (void)                                                  \
+{                                                              \
+  bar##N ((V##N){}, (V##N){});                                 \
+}
+
+TEST (1, char)
+TEST (2, short)
+TEST (3, int)
+TEST (4, long)
+TEST (5, long long)
+#ifdef __SIZEOF_INT128__
+TEST (6, __int128)
+#endif