Control: found -1 6.2.1-6 Control: severity -1 serious Control: tags -1 patch
Hi, On Sun, 29 Mar 2015 17:17:03 +0200 Matthias Klose <d...@debian.org> wrote: > Package: src:gcc-5 > Version: 5-20150327-1 > Severity: important > Tags: sid stretch > Forwarded: https://gcc.gnu.org/PR65618 > > seen building trunk 20150328. I'm not entirely sure if this is a regression. > Apparently all distro builds for mips and mipsel set STAGE3_CFLAGS += -gtoggle > (same as in stage2) in the past, and maybe were papering over the problem. > > If this workaround is really needed, we should limit the comparision failure > to > exactly the one failing file. > > Comparing stages 2 and 3 > warning: gcc/cc1-checksum.o differs > warning: gcc/cc1objplus-checksum.o differs > warning: gcc/cc1obj-checksum.o differs > warning: gcc/cc1plus-checksum.o differs > Bootstrap comparison failure! > gcc/ada/a-except.o differs > Makefile:22697: recipe for target 'compare' failed > make[4]: *** [compare] Error 1 Given that you reverted the workaround for this, I assume that you consider this bug RC for stretch? I note that this isn't a recent issue - the workaround was shipped in both wheezy and jessie. I attach the patch I posted to the upstream bug report. I am going to submit it properly once I do a few extra tests (I'm fairly confident about it, but it won't be done until next week). I'm also planning on upstreaming ada-mips.diff with a few tweaks simplify it a bit. Thanks, James
--- a/gcc/emit-rtl.c
+++ a/gcc/emit-rtl.c
@@ -3742,6 +3742,11 @@ try_split (rtx pat, rtx_insn *trial, int last)
next = NEXT_INSN (next))
if (NOTE_KIND (next) == NOTE_INSN_CALL_ARG_LOCATION)
{
+ /* Advance after to the next instruction if it is about to
+ be removed */
+ if (after == next)
+ after = NEXT_INSN(after);
+
remove_insn (next);
add_insn_after (next, insn, NULL);
break;
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