d7f0bc0594
With this, execution time for e.g. __moddi3 go from 59 to 40 cycles in the "fast" case or from 290 to 200 cycles in the "slow" case (when the !TARGET_HAS_NO_HW_DIVIDE variant calls division and modulus functions for 32-bit SImode), as exposed by gcc.c-torture/execute/arith-rand-ll.c compiled for -march=v10. Unfortunately, it just puts a performance improvement "dent" of 0.07% in a arith-rand-ll.c-based performance test - where all loops are also reduced to 1/10. The size of every affected libgcc function is reduced to less than half and they are all now leaf functions. * config/cris/t-cris (HOST_LIBGCC2_CFLAGS): Add -DTARGET_HAS_NO_HW_DIVIDE. |
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| .. | ||
| arit.c | ||
| mulsi3.S | ||
| sfp-machine.h | ||
| t-cris | ||
| t-elfmulti | ||
| umulsidi3.S | ||