The rtx u2 field currently uses a desc/tag pair for GTY. This seems
unnecessary though, since the field is specifically supposed to be
32 bits wide on 64-bit hosts and so cannot hold a pointer.
Tested on x86_64-linux-gnu. OK to install?
Thanks,
Richard
gcc/
* rtl.h (rtx_def): Mark u2 as GTY ((skip)).
Index: gcc/rtl.h
===================================================================
--- gcc/rtl.h 2014-05-10 09:35:05.112643742 +0100
+++ gcc/rtl.h 2014-05-10 14:02:52.349291772 +0100
@@ -354,8 +354,8 @@ struct GTY((chain_next ("RTX_NEXT (&%h)"
/* In a CONST_WIDE_INT (aka hwivec_def), this is the number of
HOST_WIDE_INTs in the hwivec_def. */
- unsigned GTY ((tag ("CONST_WIDE_INT"))) num_elem:32;
- } GTY ((desc ("GET_CODE (&%0)"))) u2;
+ unsigned num_elem;
+ } GTY ((skip)) u2;
/* The first element of the operands of this rtx.
The number of operands and their types are controlled
