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Re: mcore-elf on 3.3 branch
- From: Nick Clifton <nickc at redhat dot com>
- To: Joel Sherrill <joel dot sherrill at OARcorp dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Tue, 13 May 2003 18:16:28 +0100
- Subject: Re: mcore-elf on 3.3 branch
- References: <3EBFDFB0.72DD73FC@OARcorp.com>
Hi Joel,
> mcore-elf has a problem on the 3.3 branch. I currently have a
> cc1 running with over 17 minutes CPU time on a 2.4 Ghz P4
> compiling _lshrdi3.o.
Still investigating. Problem is in the second if-conversion pass.
Applying the workaround patch below allows the compiler to build, (and
possibly bootstrap, I have not checked).
Cheers
Nick
2003-05-13 Nick Clifton <nickc@redhat.com>
* config/mcore/mcore.h (OPTIMIZATION_OPTIONS): Disable second
if-conversion pass.
Index: gcc/config/mcore/mcore.h
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/mcore/mcore.h,v
retrieving revision 1.41.4.1
diff -c -3 -p -w -r1.41.4.1 mcore.h
*** gcc/config/mcore/mcore.h 29 Apr 2003 14:31:53 -0000 1.41.4.1
--- gcc/config/mcore/mcore.h 13 May 2003 17:20:52 -0000
*************** extern const char * mcore_stack_incremen
*** 194,199 ****
--- 194,200 ----
{ \
flag_no_function_cse = 1; \
flag_omit_frame_pointer = 1; \
+ flag_if_conversion2 = 0; \
\
if (LEVEL >= 2) \
{ \