Support IPIN connections from all four sides incoming wires of the GSB #6287

Job	Run time
Detect code changes	8s
Debug Build (Ubuntu 22.04)	30m 30s
docker_regression_tests	0s
Build Compatibility: GCC-9 (Ubuntu 22.04)	34m 51s
Build w/o Yosys (Ubuntu 22.04)	21m 50s
Build Compatibility: GCC-10 (Ubuntu 22.04)	38m 42s
Build w/o Yosys plugin (Ubuntu 22.04)	37m 22s
Build Compatibility: GCC-11 (Ubuntu 22.04)	37m 37s
No-warning Build (Ubuntu 22.04)	29m 34s
Build w/o test (Ubuntu 22.04)	37m 6s
Build Compatibility: GCC-12 (Ubuntu 22.04)	39m 16s
Build (GCC-11 on Ubuntu 20.04)	34m 34s
Build w/o version number (Ubuntu 22.04)	37m 13s
Build Compatibility: Clang-11 (Ubuntu 22.04)	37m 4s
Build w/o SWIG support (Ubuntu 22.04)	36m 37s
Build (Clang-10 on Ubuntu 20.04)	30m 19s
Build Compatibility: Clang-12 (Ubuntu 22.04)	40m 53s
Build with capnproto update (Ubuntu 22.04)	38m 21s
Build Compatibility: Clang-13 (Ubuntu 22.04)	40m 34s
Build Compatibility: Clang-14 (Ubuntu 22.04)	40m 3s
Build docker image for distribution	30s
linux_regression_tests (basic_reg_yosys_only_test)	19s
linux_regression_tests (basic_reg_test)	18m 21s
linux_regression_tests (fpga_verilog_reg_test)	8m 25s
linux_regression_tests (fpga_bitstream_reg_test)	13m 11s
linux_regression_tests (fpga_sdc_reg_test)	21s
linux_regression_tests (fpga_spice_reg_test)	17s
linux_regression_tests (micro_benchmark_reg_test)	3m 59s
linux_regression_tests (quicklogic_reg_test)	12m 55s
linux_regression_tests (vtr_benchmark_reg_test)	11m 8s
linux_regression_tests (iwls_benchmark_reg_test)	12m 9s
linux_regression_tests (tcl_reg_test)	32s
	12h 4m 41s

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