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authorEddie Hung <eddie@fpgeh.com>2019-08-20 17:36:14 -0700
committerEddie Hung <eddie@fpgeh.com>2019-08-20 17:36:14 -0700
commit8f666ebac16a3730aeca4738fc1019e9e7a7e51f (patch)
tree52a0769430048af6c925c44cd8bb1c85642d21e6 /techlibs/xilinx/synth_xilinx.cc
parent1b5d2de1d4212bd93f9b0ca0d5173e4c8a4dd4e8 (diff)
parent33960dd3d84b628f6e5de45c112368dc80626457 (diff)
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Merge remote-tracking branch 'origin/master' into xaig_dff
Diffstat (limited to 'techlibs/xilinx/synth_xilinx.cc')
-rw-r--r--techlibs/xilinx/synth_xilinx.cc31
1 files changed, 17 insertions, 14 deletions
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc
index d4874af45..d6ff91e13 100644
--- a/techlibs/xilinx/synth_xilinx.cc
+++ b/techlibs/xilinx/synth_xilinx.cc
@@ -64,13 +64,13 @@ struct SynthXilinxPass : public ScriptPass
log(" (this feature is experimental and incomplete)\n");
log("\n");
log(" -nobram\n");
- log(" disable inference of block rams\n");
+ log(" do not use block RAM cells in output netlist\n");
log("\n");
- log(" -nodram\n");
- log(" disable inference of distributed rams\n");
+ log(" -nolutram\n");
+ log(" do not use distributed RAM cells in output netlist\n");
log("\n");
log(" -nosrl\n");
- log(" disable inference of shift registers\n");
+ log(" do not use distributed SRL cells in output netlist\n");
log("\n");
log(" -nocarry\n");
log(" do not use XORCY/MUXCY/CARRY4 cells in output netlist\n");
@@ -104,7 +104,7 @@ struct SynthXilinxPass : public ScriptPass
}
std::string top_opt, edif_file, blif_file, family;
- bool flatten, retime, vpr, nobram, nodram, nosrl, nocarry, nowidelut, abc9;
+ bool flatten, retime, vpr, nobram, nolutram, nosrl, nocarry, nowidelut, abc9;
int widemux;
void clear_flags() YS_OVERRIDE
@@ -118,7 +118,7 @@ struct SynthXilinxPass : public ScriptPass
vpr = false;
nocarry = false;
nobram = false;
- nodram = false;
+ nolutram = false;
nosrl = false;
nocarry = false;
nowidelut = false;
@@ -186,8 +186,8 @@ struct SynthXilinxPass : public ScriptPass
nobram = true;
continue;
}
- if (args[argidx] == "-nodram") {
- nodram = true;
+ if (args[argidx] == "-nolutram" || /*deprecated alias*/ args[argidx] == "-nodram") {
+ nolutram = true;
continue;
}
if (args[argidx] == "-nosrl") {
@@ -284,7 +284,7 @@ struct SynthXilinxPass : public ScriptPass
run("opt_clean");
}
- if (check_label("bram", "(skip if '-nobram')")) {
+ if (check_label("map_bram", "(skip if '-nobram')")) {
if (help_mode) {
run("memory_bram -rules +/xilinx/{family}_brams.txt");
run("techmap -map +/xilinx/{family}_brams_map.v");
@@ -301,20 +301,23 @@ struct SynthXilinxPass : public ScriptPass
}
}
- if (check_label("dram", "(skip if '-nodram')")) {
- if (!nodram || help_mode) {
- run("memory_bram -rules +/xilinx/drams.txt");
- run("techmap -map +/xilinx/drams_map.v");
+ if (check_label("map_lutram", "(skip if '-nolutram')")) {
+ if (!nolutram || help_mode) {
+ run("memory_bram -rules +/xilinx/lutrams.txt");
+ run("techmap -map +/xilinx/lutrams_map.v");
}
}
- if (check_label("fine")) {
+ if (check_label("map_ffram")) {
if (widemux > 0)
run("opt -fast -mux_bool -undriven -fine"); // Necessary to omit -mux_undef otherwise muxcover
// performs less efficiently
else
run("opt -fast -full");
run("memory_map");
+ }
+
+ if (check_label("fine")) {
run("dffsr2dff");
run("dff2dffe");
if (help_mode) {