[Bug target/89765] Multiple problems with vec-insert implementation on PowerPC

[kelvin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89765

--- Comment #3 from kelvin at gcc dot gnu.org ---
I have found that removing the pattern in match.pd resolves this issue with no
regressions on various powerpc targets.  I have not tested on other platforms.



Index: gcc/match.pd
===================================================================
--- gcc/match.pd        (revision 270020)
+++ gcc/match.pd        (working copy)
@@ -4963,11 +4963,6 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
  (BIT_FIELD_REF @0 @1 @2))

 (simplify
- (BIT_FIELD_REF @0 @1 integer_zerop)
- (if (tree_int_cst_equal (@1, TYPE_SIZE (TREE_TYPE (@0))))
-  (view_convert @0)))
-
-(simplify
  (BIT_FIELD_REF @0 @1 @2)
  (switch
   (if (TREE_CODE (TREE_TYPE (@0)) == COMPLEX_TYPE