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Re: patch: move2add_note_store: handle subregs
- From: Aldy Hernandez <aldyh at redhat dot com>
- To: amylaar at spamcop dot net
- Cc: joern dot rennecke at st dot com, rth at redhat dot com, gcc-patches at gcc dot gnu dot org
- Date: Fri, 14 Jan 2005 14:06:37 -0400
- Subject: Re: patch: move2add_note_store: handle subregs
- References: <20050114001756.yjvqt8g8kk0008ws@webmail.spamcop.net>
> as they have a scalar integer mode. I.e. the new test should be:
>
> && SCALAR_INT_MODE_P (GET_MODE (dst))
Ah, ok. The patch below fixes the problem, and has been tested on
powerpc-linux.
OK for mainline?
* postreload.c (move2add_note_store): Only call
trunc_int_for_mode on scalar integers.
Index: postreload.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/postreload.c,v
retrieving revision 2.25
diff -c -p -r2.25 postreload.c
*** postreload.c 5 Jan 2005 23:19:20 -0000 2.25
--- postreload.c 14 Jan 2005 18:04:16 -0000
*************** move2add_note_store (rtx dst, rtx set, v
*** 1457,1463 ****
regno += REGNO (dst);
! if (SCALAR_INT_MODE_P (mode)
&& hard_regno_nregs[regno][mode] == 1 && GET_CODE (set) == SET
&& GET_CODE (SET_DEST (set)) != ZERO_EXTRACT
&& GET_CODE (SET_DEST (set)) != STRICT_LOW_PART)
--- 1457,1463 ----
regno += REGNO (dst);
! if (SCALAR_INT_MODE_P (GET_MODE (dst))
&& hard_regno_nregs[regno][mode] == 1 && GET_CODE (set) == SET
&& GET_CODE (SET_DEST (set)) != ZERO_EXTRACT
&& GET_CODE (SET_DEST (set)) != STRICT_LOW_PART)