On Sat, 14 Jun 2014, Richard Sandiford wrote:

> To make the final representation change easier, this patch introduces
> macros for iterating over lists of defs, uses and eq_uses.  At the
> moment there are three possible keys when accessing df_ref lists:
> the insn rtx (DF_INSN_*), the insn uid (DF_INSN_UID_*) and the
> df_insn_info (DF_INSN_INFO_*).  I don't think it's worth adding
> iterators for uids though.  Any code that's going to the trouble of
> caching the uid might as well go the whole hog and cache the underlying
> df_insn_info.
>
> After the feedback to the BB iterator patch:
>
>   https://gcc.gnu.org/ml/gcc-patches/2014-06/msg00676.html
>
> I've kept the iterator variable definitions outside the FOR_* macros
> rather than make the FOR_* macros define the variables themselves.
>
> Richard
>
>
> gcc/
>       * df.h (DF_INSN_INFO_MWS, FOR_EACH_INSN_INFO_DEF): New macros.
>       (FOR_EACH_INSN_INFO_USE, FOR_EACH_INSN_INFO_EQ_USE): Likewise.
>       (FOR_EACH_INSN_DEF, FOR_EACH_INSN_USE, FOR_EACH_INSN_EQ_USE): Likewise.
>       * auto-inc-dec.c (find_inc, merge_in_block): Use them.


One of these patches (in 211677:211684) broke cris-elf:

g++ -c   -g -O2 -DIN_GCC  -DCROSS_DIRECTORY_STRUCTURE
-fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall
\
-Wwrite-strings -Wcast-qual -Wmissing-format-attribute
-Woverloaded-virtual -pedantic -Wno-long-long
-Wno-variadic-macr\
os -Wno-overlength-strings -fno-common  -DHAVE_CONFIG_H -I. -I.
-I/tmp/hpautotest-gcc0/gcc/gcc -I/tmp/hpautotest-gcc0/g\
cc/gcc/. -I/tmp/hpautotest-gcc0/gcc/gcc/../include
-I/tmp/hpautotest-gcc0/gcc/gcc/../libcpp/include
-I/tmp/hpautotest-g\
cc0/cris-elf/gccobj/./gmp -I/tmp/hpautotest-gcc0/gcc/gmp
-I/tmp/hpautotest-gcc0/cris-elf/gccobj/./mpfr -I/tmp/hpautotes\
t-gcc0/gcc/mpfr -I/tmp/hpautotest-gcc0/gcc/mpc/src
-I/tmp/hpautotest-gcc0/gcc/gcc/../libdecnumber
-I/tmp/hpautotest-gc\
c0/gcc/gcc/../libdecnumber/dpd -I../libdecnumber
-I/tmp/hpautotest-gcc0/gcc/gcc/../libbacktrace    -o
auto-inc-dec.o -M\
T auto-inc-dec.o -MMD -MP -MF ./.deps/auto-inc-dec.TPo
/tmp/hpautotest-gcc0/gcc/gcc/auto-inc-dec.c
/tmp/hpautotest-gcc0/gcc/gcc/auto-inc-dec.c: In function 'void
merge_in_block(int, basic_block_def*)':
/tmp/hpautotest-gcc0/gcc/gcc/auto-inc-dec.c:1442: error: 'uid'
was not declared in this scope
make[2]: *** [auto-inc-dec.o] Error 1

brgds, H-P

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