2010-04-08 Christian Borntraeger <borntraeger@de.ibm.com>
Wolfgang Gellerich <gellerich@de.ibm.com>
Implement target hook for loop unrolling
* target.h (loop_unroll_adjust): Add a new target hook function.
* target-def.h (TARGET_LOOP_UNROLL_ADJUST): Likewise.
* doc/tm.texi (TARGET_LOOP_UNROLL_ADJUST): Document it.
* config/s390/s390.c (TARGET_LOOP_UNROLL_ADJUST): Define it.
(s390_loop_unroll_adjust): Implement the new target hook for s390.
* loop-unroll.c (decide_unroll_runtime_iterations): Call loop unroll target hook
(decide_unroll_stupid): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158132
138bc75d-0d04-0410-961f-
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