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Re: sync_fetch_and_add creating unrecognizable insn
No.
Appended is what I already found and am testing.
* config/rs6000/rs6000.c (emit_sync): Change aligned QImode and
HImode MEM to SImode.
Index: rs6000.c
===================================================================
--- rs6000.c (revision 127335)
+++ rs6000.c (working copy)
@@ -12737,6 +12737,8 @@
ishift = GET_MODE_BITSIZE (SImode) - GET_MODE_BITSIZE (mode);
shift = GEN_INT (ishift);
+
+ used_m = change_address (used_m, SImode, NULL_RTX);
}
else
{
@@ -12757,15 +12759,16 @@
1, OPTAB_LIB_WIDEN);
used_m = change_address (used_m, SImode, aligned_addr);
set_mem_align (used_m, 32);
- /* It's safe to keep the old alias set of USED_M, because
- the operation is atomic and only affects the original
- USED_M. */
- if (GET_CODE (m) == NOT)
- m = gen_rtx_NOT (SImode, used_m);
- else
- m = used_m;
}
+ /* It's safe to keep the old alias set of USED_M, because
+ the operation is atomic and only affects the original
+ USED_M. */
+ if (GET_CODE (m) == NOT)
+ m = gen_rtx_NOT (SImode, used_m);
+ else
+ m = used_m;
+
if (GET_CODE (op) == NOT)
{
oldop = lowpart_subreg (SImode, XEXP (op, 0), mode);