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Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz> writes: > as far as I am aware, there is no such dependence in unswitching. > What exactly breaks with your patch? Numerous GCC test cases at -O3. For example: Executing on host: /home/bje/build/head/gcc/xgcc -B/home/bje/build/head/gcc/ -O3 -fomit-frame-pointer -w -c -o 20020109-1.o /home/bje/source/gcc-head/gcc/testsuite/gcc.c-torture/compile/20020109-1.c (timeout = 300) /home/bje/source/gcc-head/gcc/testsuite/gcc.c-torture/compile/20020109-1.c: In function 'foo': /home/bje/source/gcc-head/gcc/testsuite/gcc.c-torture/compile/20020109-1.c:15: internal compiler error: in tree_split_edge, at tree-cfg.c:3032 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. compiler exited with status 1 I've attached a patch, as Steven asked, so others can take a look.
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Ben
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