This test case started being rejected with r145254:
http://gcc.gnu.org/ml/gcc-cvs/2009-03/msg00761.html
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Title:
mmpong version 0.9.1-1 failed to b
Created attachment 25393
reduced test case
> cat pr50565.c
/* pr50565.c */
struct netmessage {
unsigned char pos[2];
};
static struct netmessage nmsgbuf;
const int offset0 = (int)((void*)&nmsgbuf.pos[0] - (void*)&nmsgbuf) + 0*(1U);
const int offset1 = (int)((void*)&nmsgbuf.pos[0] - (void*)&nms
The ICE started with Richard Henderson's "[ARM] Convert to atomic optabs" patch
in r183050:
http://gcc.gnu.org/ml/gcc-patches/2012-01/msg00288.html
http://gcc.gnu.org/ml/gcc-cvs/2012-01/msg00290.html
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I can reproduce the ICE with g++ 4.8-20121007 and 4.7-20121006, on arm-
linux-gnueabi with -march=armv7-a; with -march=armv6 or armv5te it
doesn't ICE. The preprocessed source doesn't compile with g++ 4.6 so I
can't check there.
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I can reproduce the ICE with gcc-4.7.2 on armv5tel-linux-gnueabi,
sparc64-linux -m32, x86_64-linux -m32, and m68k-linux. I haven't
checked any other targets.
The ICE stopped on trunk with Richard B's "Make gsi_remove return whether EH
cleanup is required" patch in r186159:
http://gcc.gnu.org/ml/
It's caused or triggered by r154736:
Author: hubicka
Date: Sun Nov 29 10:32:08 2009
New Revision: 154736
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=154736
Log:
* cgraph.c (same_body_alias_1): Break out of
(same_body_alias): ... here; remove comdat check; it is handled
Created attachment 24484
reduced test case
With the massively reduced test case and r154736 built as a cross to
armv5tel-linux-gnueabi, I get:
> /tmp/objdir/gcc/g++ -B/tmp/objdir/gcc -O1 -S XMLServiceProvider.cc
XMLServiceProvider.cc: In member function 'virtual thunk to
XMLConfig::getBool() con
(In reply to comment #8)
> Author: ramana
> Date: Tue Mar 15 19:59:25 2011
> New Revision: 171017
>
> URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=171017
> Log:
>
> Fix PR target/46788
>
>
> Added:
> branches/gcc-4_6-branch/gcc/testsuite/gcc.target/arm/pr46788.c
> - copied un
Try passing the function pointer through an opaque identity transform:
asm("" : "=r"(p) : "0"(main));
if ((uintptr_t)p & 1) /* do thumb case */
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