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authorJakub Jelinek <jakub@redhat.com>2017-12-02 08:54:47 +0100
committerJakub Jelinek <jakub@gcc.gnu.org>2017-12-02 08:54:47 +0100
commite034c5c895722e0092d2239cd8c2991db77d6d39 (patch)
tree128171fc7beeba4de19df412d9d8a94d75ce0164 /gcc/expr.c
parent3b5e1089fedddec6d8299ba1800705b65c574d32 (diff)
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re PR target/78643 (ICE in convert_move, at expr.c:230)
PR target/78643 PR target/80583 * expr.c (get_inner_reference): If DECL_MODE of a non-bitfield is BLKmode for vector field with vector raw mode, use TYPE_MODE instead of DECL_MODE. * gcc.target/i386/pr80583.c: New test. From-SVN: r255353
Diffstat (limited to 'gcc/expr.c')
-rw-r--r--gcc/expr.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/gcc/expr.c b/gcc/expr.c
index e9d8555..8011638 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -7032,7 +7032,16 @@ get_inner_reference (tree exp, HOST_WIDE_INT *pbitsize,
size. */
mode = TYPE_MODE (DECL_BIT_FIELD_TYPE (field));
else if (!DECL_BIT_FIELD (field))
- mode = DECL_MODE (field);
+ {
+ mode = DECL_MODE (field);
+ /* For vector fields re-check the target flags, as DECL_MODE
+ could have been set with different target flags than
+ the current function has. */
+ if (mode == BLKmode
+ && VECTOR_TYPE_P (TREE_TYPE (field))
+ && VECTOR_MODE_P (TYPE_MODE_RAW (TREE_TYPE (field))))
+ mode = TYPE_MODE (TREE_TYPE (field));
+ }
else if (DECL_MODE (field) == BLKmode)
blkmode_bitfield = true;