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https://github.com/YosysHQ/yosys
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84f9cd0025
Remove opt_compare and put comparison pass in opt_expr
assuming a [7:0] is unsigned
a >= (1<<x) becomes |a[7:x]
a < (1<<x) becomes !a[7:x]
Additionally:
a >= 0 becomes constant true,
a < 0 becomes constant false
delete opt_compare.cc
revert opt.cc to commit b7cfb7dbd (remove opt_compare step)
15 lines
297 B
Makefile
15 lines
297 B
Makefile
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OBJS += passes/opt/opt.o
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OBJS += passes/opt/opt_merge.o
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OBJS += passes/opt/opt_muxtree.o
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OBJS += passes/opt/opt_reduce.o
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OBJS += passes/opt/opt_rmdff.o
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OBJS += passes/opt/opt_clean.o
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OBJS += passes/opt/opt_expr.o
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ifneq ($(SMALL),1)
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OBJS += passes/opt/share.o
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OBJS += passes/opt/wreduce.o
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endif
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