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A strange behavior of apple-ppc-branch on darwin7.3.0
- From: Mostafa Hagog <MUSTAFA at il dot ibm dot com>
- To: gcc at gcc dot gnu dot org
- Cc: dalej at apple dot com
- Date: Wed, 1 Dec 2004 10:39:15 +0200
- Subject: A strange behavior of apple-ppc-branch on darwin7.3.0
A build (or bootstrap) of apple-ppc-branch on powerpc-apple-darwin7.3.0,
(on a G5 machine) ICEs as follows:
../../gcc/gcc/libgcc2.c: In function '__divdi3':
../../gcc/gcc/libgcc2.c:997: internal compiler error: in cleanup_tree_cfg,
at tree-cfg.c:727
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
make[2]: *** [libgcc/./_divdi3.o] Error 1
make[1]: *** [libgcc.a] Error 2
make: *** [all-gcc] Error 2
But with the below change to cleanup_tree_cfg, the ICE disappears.
Any thoughts?
Mostafa.
Index: tree-cfg.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/tree-cfg.c,v
retrieving revision 1.1.4.278.2.15
diff -c -p -r1.1.4.278.2.15 tree-cfg.c
*** tree-cfg.c 16 Nov 2004 20:20:15 -0000 1.1.4.278.2.15
--- tree-cfg.c 1 Dec 2004 08:28:29 -0000
*************** cleanup_tree_cfg (void)
*** 719,724 ****
--- 719,727 ----
retval = cleanup_control_flow ();
retval |= delete_unreachable_blocks ();
retval |= thread_jumps ();
+ retval |= cleanup_control_flow ();
+ retval |= delete_unreachable_blocks ();
+ retval |= thread_jumps ();
#ifdef ENABLE_CHECKING
if (retval)