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Re: Bootstrap failure on powerpc-apple-darwin



On Oct 29, 2004, at 4:57 PM, Matt Austern wrote:


stage1/xgcc -Bstage1/ -B/work/root.u/powerpc-apple-darwin7.5.0/bin/ -c -g -O2 -mdynamic-no-pic -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros -Wold-style-definition -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc.u/gcc -I../../gcc.u/gcc/. -I../../gcc.u/gcc/../include -I./../intl -I../../gcc.u/gcc/../libcpp/include ../../gcc.u/gcc/tree-ssa-operands.c -o tree-ssa-operands.o
cc1: warnings being treated as errors
../../gcc.u/gcc/tree-ssa-operands.c: In function 'get_expr_operands':
../../gcc.u/gcc/tree-ssa-operands.c:1624: warning: 'bi$ptr2' is used uninitialized in this function

This warning is erroneous. bi.ptr2 is not used at all. The reason why this happens is because the size (or the number of elements used) has changed for bitmap_iterator which means that we no longer SRA the copy of the struct. Nathan's patch actually slowed down the compiler not sped it up at all.

Thanks,
Andrew Pinski


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