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[Bug tree-optimization/41750] [4.5 Regression] gcc 4.5.0 miscompiles binutils
- From: "hjl dot tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 29 Oct 2009 22:02:22 -0000
- Subject: [Bug tree-optimization/41750] [4.5 Regression] gcc 4.5.0 miscompiles binutils
- References: <bug-41750-11564@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #23 from hjl dot tools at gmail dot com 2009-10-29 22:02 -------
Created an attachment (id=18930)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18930&action=view)
A testcase
[hjl@gnu-6 pr41750]$ make clean
rm -f *.o *.s *.c.*
[hjl@gnu-6 pr41750]$ make CFLAGS="-O -fipa-sra"
/export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc/build-x86_64-linux/gcc/ -O -fipa-sra -c -o foo.o
foo.c
/export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc/build-x86_64-linux/gcc/ -O -fipa-sra -c -o main.o
main.c
/export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc/build-x86_64-linux/gcc/ -o foo foo.o main.o
./foo
make: *** [all] Error 1
[hjl@gnu-6 pr41750]$ make clean
rm -f *.o *.s *.c.*
[hjl@gnu-6 pr41750]$ make CFLAGS=-O
/export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc/build-x86_64-linux/gcc/ -O -c -o foo.o foo.c
/export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc/build-x86_64-linux/gcc/ -O -c -o main.o main.c
/export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc/build-x86_64-linux/gcc/ -o foo foo.o main.o
./foo
[hjl@gnu-6 pr41750]$
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41750