Added first pass at driver/level3 Makefile conversion.

Added a rather convoluted CMake function to find all combinations
of a given list. This will be useful for the object files that are
compiled multiple times with different combinations of preprocessor
definitions.

cmake/prebuild.cmake

@@ -73,7 +73,6 @@ function(ParseGetArchVars GETARCH_IN)
     string(REGEX MATCHALL "[0-9_a-zA-Z]+" SPLIT_VAR "${GETARCH_LINE}")
     list(GET SPLIT_VAR 0 VAR_NAME)
     list(GET SPLIT_VAR 1 VAR_VALUE)
-    message(STATUS "Setting ${VAR_NAME} to ${VAR_VALUE}")
     set(${VAR_NAME} ${VAR_VALUE} PARENT_SCOPE)
   endforeach ()
 endfunction ()

driver/level3/CMakeLists.txt

@@ -0,0 +1,106 @@
+include_directories(${CMAKE_SOURCE_DIR})
+
+set(USE_GEMM3M 0)
+
+if (DEFINED ARCH)
+  if (${ARCH} STREQUAL "x86")
+    set(USE_GEMM3M 1)
+  endif ()
+
+  if (${ARCH} STREQUAL "x86_64")
+    set(USE_GEMM3M 1)
+  endif ()
+
+  if (${ARCH} STREQUAL "ia64")
+    set(USE_GEMM3M 1)
+  endif ()
+
+  if (${ARCH} STREQUAL "MIPS")
+    set(USE_GEMM3M 1)
+  endif ()
+endif ()
+
+# N.B. In the original makefile there was a BLOCKS define used in the compilation of these files but I don't see any evidence of it being set anywhere. -hpa
+
+# loop through gemm.c defines
+set(GEMM_DEFINES NN NT TN TT)
+foreach (GEMM_DEFINE ${GEMM_DEFINES})
+  add_library(GEMM_${GEMM_DEFINE}_OBJS OBJECT gemm.c)
+  set_target_properties(GEMM_${GEMM_DEFINE}_OBJS PROPERTIES COMPILE_DEFINITIONS ${GEMM_DEFINE})
+endforeach ()
+
+# Returns all combinations of the input list, as a list with colon-separated combinations
+# E.g. input of A B C returns A B C A:B A:C B:C
+# N.B. The input is meant to be a list, and to past a list to a function in CMake you must quote it (e.g. AllCombinations("${LIST_VAR}")).
+function(AllCombinations list_in)
+  list(LENGTH list_in list_count)
+  set(num_combos 1)
+  math(EXPR num_combos "${num_combos} << ${list_count}")
+  set(LIST_OUT "")
+  foreach (c RANGE ${num_combos})
+    set(current_combo "")
+    # this is a little ridiculous just to iterate through a list w/ indices
+    math(EXPR last_list_index "${list_count} - 1")
+    foreach (list_index RANGE 0 ${last_list_index})
+      math(EXPR bit "1 << ${list_index}")
+      math(EXPR combo_has_bit "${c} & ${bit}")
+      list(GET list_in ${list_index} list_elem)
+      if (combo_has_bit)
+        if (current_combo)
+          set(current_combo "${current_combo}:${list_elem}")
+        else ()
+          set(current_combo ${list_elem})
+        endif ()
+      endif ()
+    endforeach ()
+    list(APPEND LIST_OUT ${current_combo})
+  endforeach ()
+  set(LIST_OUT ${LIST_OUT} PARENT_SCOPE)
+endfunction ()
+
+# these sources are compiled with combinations of TRANS, UPPER, and UNIT, for 32 combinations total
+set(TRM_SOURCES trmm_L.c trmm_R.c trsm_L.c trsm_R.c)
+AllCombinations("TRANS UPPER UNIT")
+set(TRM_DEFINE_COMBOS LIST_OUT)
+message(STATUS "alcombos result: ${LIST_OUT}")
+foreach (TRM_SOURCE ${TRM_SOURCES})
+  foreach (TRM_DEFINES ${TRM_DEFINE_COMBOS})
+    string(REGEX MATCH "[a-z]+_[LR]" TRM_NAME ${TRM_SOURCE})
+    string(TOUPPER ${TRM_NAME} TRM_NAME)
+    # TODO: TRM_DEFINES is a colon-separated list of defines to set for this object - need to parse it and set them using set_target_properties, and also come up with a unique id for the lib name (e.g. first letter of each define, so TRANS UPPER UNIT is TUU)
+    #add_library(${TRM_NAME}_${TRM_DEFINE}_OBJS OBJECT ${TRM_SOURCE})
+    #set_target_properties(${TRM_NAME}_${TRM_DEFINE}_OBJS PROPERTIES COMPILE_DEFINITIONS ${TRM_DEFINE})
+  endforeach ()
+endforeach ()
+
+#	dsymm_LU.c dsymm_LL.c dsymm_RU.c dsymm_RL.c
+#	dsyrk_UN.c dsyrk_UT.c dsyrk_LN.c dsyrk_LT.c
+#	dsyr2k_UN.c dsyr2k_UT.c dsyr2k_LN.c dsyr2k_LT.c
+#	dsyrk_kernel_U.c  dsyrk_kernel_L.c
+#	dsyr2k_kernel_U.c dsyr2k_kernel_L.c
+
+#if (SMP)
+#
+#  COMMONOBJS  += gemm_thread_m.c gemm_thread_n.c gemm_thread_mn.c gemm_thread_variable.c
+#  COMMONOBJS  += syrk_thread.c
+#
+#  if (USE_SIMPLE_THREADED_LEVEL3)
+#    DBLASOBJS    += dgemm_thread_nn.c dgemm_thread_nt.c dgemm_thread_tn.c dgemm_thread_tt.c
+#    DBLASOBJS    += dsymm_thread_LU.c dsymm_thread_LL.c dsymm_thread_RU.c dsymm_thread_RL.c
+#    DBLASOBJS    += dsyrk_thread_UN.c dsyrk_thread_UT.c dsyrk_thread_LN.c dsyrk_thread_LT.c
+#
+#  endif ()
+#endif ()
+#
+#HPLOBJS =
+#	dgemm_nn.c dgemm_nt.c dgemm_tn.c dgemm_tt.c
+#	dtrsm_LNUU.c dtrsm_LNUN.c dtrsm_LNLU.c dtrsm_LNLN.c
+#	dtrsm_LTUU.c dtrsm_LTUN.c dtrsm_LTLU.c dtrsm_LTLN.c
+#	dtrsm_RNUU.c dtrsm_RNUN.c dtrsm_RNLU.c dtrsm_RNLN.c
+#	dtrsm_RTUU.c dtrsm_RTUN.c dtrsm_RTLU.c dtrsm_RTLN.c
+#
+#if (USE_SIMPLE_THREADED_LEVEL3)
+#  HPLOBJS += dgemm_thread_nn.c dgemm_thread_nt.c
+#	   dgemm_thread_tn.c dgemm_thread_tt.c
+#endif
+#