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egcs-1.1.2 -O flag and macro bug
- To: egcs-bugs at cygnus dot com
- Subject: egcs-1.1.2 -O flag and macro bug
- From: takeshi at SoftAgency dot co dot jp
- Date: Wed, 28 Apr 1999 19:30:48 +0900
Hello,
When compile next test1.c file with -O options, egcs create incorrect code.
but without -O option, code is correct.
this test1.c must show `1', but, binary created with -O option return `0'.
=== test1.c ===
#include <stdio.h>
typedef unsigned char uchar;
#define issjishead(c) ((0x81<=(uchar)(c) && (uchar)(c)<=0x9f) || (0xe0<=(uchar)(c) && (uchar)(c)<=0xfc))
int main()
{
int a = -107;
printf("%d\n", issjishead(a));
}
==== end of test1.c ===
% gcc -v --save-temps -O test1.c
Reading specs from /usr/lib/gcc-lib/i486-linux-gnulibc1/egcs-2.91.66/specs
gcc version egcs-2.91.66 19990314 (egcs-1.1.2 release)
cpp -lang-c -v -undef -D__GNUC__=2 -D__GNUC_MINOR__=91 -D__ELF__ -Dunix -Di386 -D__i386__ -Dlinux -D__ELF__ -D__unix__ -D__i386__ -D__i386__ -D__linux__ -D__unix -D__i386 -D__linux -Asystem(posix) -D__OPTIMIZE__ -Asystem(unix) -Acpu(i386) -Amachine(i386) -Di386 -D__i386 -D__i386__ -Di486 -D__i486 -D__i486__ test1.c test1.i
GNU CPP version egcs-2.91.66 19990314 (egcs-1.1.2 release) (i386 Linux/ELF)
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include
/usr/i486-linux-gnulibc1/include
/usr/lib/gcc-lib/i486-linux-gnulibc1/egcs-2.91.66/include
/usr/include
End of search list.
/usr/lib/gcc-lib/i486-linux-gnulibc1/egcs-2.91.66/cc1 test1.i -quiet -dumpbase test1.c -O -version -o test1.s
GNU C version egcs-2.91.66 19990314 (egcs-1.1.2 release) (i486-linux-gnulibc1) compiled by GNU C version egcs-2.91.66 19990314 (egcs-1.1.2 release).
as -V -Qy -o test1.o test1.s
GNU assembler version 2.9.1 (i486-linux), using BFD version 2.9.1.0.23
/usr/lib/gcc-lib/i486-linux-gnulibc1/egcs-2.91.66/collect2 -m elf_i386 -dynamic-linker /lib/ld-linux.so.1 /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/gcc-lib/i486-linux-gnulibc1/egcs-2.91.66/crtbegin.o -L/usr/lib/gcc-lib/i486-linux-gnulibc1/egcs-2.91.66 -L/usr/i486-linux-gnulibc1/lib test1.o -lgcc -lc -lgcc /usr/lib/gcc-lib/i486-linux-gnulibc1/egcs-2.91.66/crtend.o /usr/lib/crtn.o
=======
thanks
takeshi@SoftAgency.co.jp
test1.i.tgz