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Remove CUSTOM_FIRRTL_PASS support, SFC passes are discouraged

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Jerry Zhao
2024-04-22 19:48:27 -07:00
parent 0adfb8b9a7
commit bd7f82f353
2 changed files with 1 additions and 10 deletions
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8
common.mk
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@@ -16,7 +16,6 @@ HELP_COMPILATION_VARIABLES += \
" EXTRA_SIM_LDFLAGS = additional LDFLAGS for building simulators" \
" EXTRA_SIM_SOURCES = additional simulation sources needed for simulator" \
" EXTRA_SIM_REQS = additional make requirements to build the simulator" \
" ENABLE_CUSTOM_FIRRTL_PASS = if set, enable custom firrtl passes (SFC lowers to LowFIRRTL & MFC converts to Verilog)" \
" ENABLE_YOSYS_FLOW = if set, add compilation flags to enable the vlsi flow for yosys(tutorial flow)" \
" EXTRA_CHISEL_OPTIONS = additional options to pass to the Chisel compiler" \
" EXTRA_BASE_FIRRTL_OPTIONS = additional options to pass to the Scala FIRRTL compiler" \
@@ -200,20 +199,13 @@ MFC_BASE_LOWERING_OPTIONS ?= emittedLineLength=2048,noAlwaysComb,disallowLocalVa
# compiles Chisel to CHIRRTL, and MFC compiles CHIRRTL to Verilog. Otherwise,
# when custom FIRRTL transforms are included
# SFC compiles Chisel to LowFIRRTL and MFC compiles it to Verilog.
# Users can indicate to the Makefile of custom FIRRTL transforms by setting the
# "ENABLE_CUSTOM_FIRRTL_PASS" variable.
#
# hack: when using dontTouch, io.cpu annotations are not removed by SFC,
# hence we remove them manually by using jq before passing them to firtool
$(SFC_LEVEL) $(EXTRA_FIRRTL_OPTIONS) &: $(FIRRTL_FILE)
ifeq (,$(ENABLE_CUSTOM_FIRRTL_PASS))
echo none > $(SFC_LEVEL)
echo "$(EXTRA_BASE_FIRRTL_OPTIONS)" > $(EXTRA_FIRRTL_OPTIONS)
else
echo low > $(SFC_LEVEL)
echo "$(EXTRA_BASE_FIRRTL_OPTIONS)" "$(SFC_REPL_SEQ_MEM)" > $(EXTRA_FIRRTL_OPTIONS)
endif
$(MFC_LOWERING_OPTIONS):
mkdir -p $(dir $@)