tablegen: Add a simple heuristic to get better names for pressure sets

[oota-llvm.git] / utils / makellvm

diff --git a/utils/makellvm b/utils/makellvm
index ad92e5ac64d900e04ed33433fa3f93a00a9f3b89..ae77712941a27b4274c9bc0018ecd97c544d56dc 100755 (executable)
--- a/utils/makellvm
+++ b/utils/makellvm
@@ -1,16 +1,145 @@
 #!/bin/csh -f
 
-       ## LLVMDIR is simply the directory where this script resides!
-set THISEXEC = $0              ## cannot use :h on $0 for some reason
-set LLVMDIR = $THISEXEC:h
+set pstatus = 0
+onintr cleanup
+alias usage 'echo "USAGE: $0:t [-h] [-n] [-obj obj-root] [gmake-flags] [VAR=...] [toolname (default: opt)]"; set pstatus = 1; goto cleanup'
+
 set EXEC = opt
+set GMAKE_OPTS = ""
+set DEBUG = 0
+
+## Search path for automatically finding the obj-root to use.
+## Note: The src root directory ${LLVMDIR} will be prepended to this path later.
+## 
+set OBJROOTDIRLIST = ( )
 
+set doit = 1
+unset options_done
+while ( !( $?options_done ) && ($#argv > 0))
+    switch ($argv[1])
+       case -h :
+           usage
+       case -f :
+           if ($#argv < 2) usage
+           shift argv; set MFILE = $argv[1]; shift argv; breaksw
+       case -n :
+           set doit = 0; shift argv; breaksw
+       case -obj :
+           set OBJROOT = $argv[2]; shift argv; shift argv
+           if (! -d "$OBJROOT") then
+               echo "FATAL: Illegal obj-root directory ${OBJROOT}"
+               exit 1
+           endif
+           breaksw
+       case -d :
+           set doit = 0; set DEBUG = 1; shift argv; breaksw
+       case -* :
+           set GMAKE_OPTS = ( $GMAKE_OPTS $argv[1] ); shift argv; breaksw
+       default :
+           set optarg = `echo -n $argv[1] | sed 's/^[^=]*$//'`
+           if ($#optarg) then
+               set GMAKE_OPTS = ( $GMAKE_OPTS $optarg )
+               shift argv
+           else
+               set options_done
+           endif
+            breaksw
+    endsw
+end
+
+if ($#argv > 1) then
+    echo 'ERROR: More than one tool is not supported by "makellvm"'
+    usage
+endif
 if ($#argv > 0) then
-    if ($argv[1] == "-h") then
-       echo 'USAGE: makellvm [toolname]   (toolname defaults to "opt").'
-       exit 0
-    endif
     set EXEC = $argv[1]
 endif
+if ($DEBUG) then
+    echo "DEBUG: EXEC = $EXEC"
+endif
+
+## Compute LLVMDIR: the root of the current LLVM tree.
+## It is recorded in the variable LEVEL in Makefile, to compute it
+## 
+if (! $?MFILE) then
+    if (-f GNUmakefile) then
+       set MFILE = GNUmakefile
+    else if (-f makefile) then
+       set MFILE = makefile
+    else
+       set MFILE = Makefile
+    endif
+endif
+if ($DEBUG) then
+    echo "DEBUG: MFILE = $MFILE"
+endif
+if (! -f $MFILE) then
+    echo "Missing or invalid makefile: $MFILE"
+    exit 1
+endif
+
+set LLVMDIR = `awk '/LEVEL[    ]*=/ {print $NF}' $MFILE`
+if ($DEBUG) then
+    echo "DEBUG: LLVMDIR = $LLVMDIR"
+endif
+
+if ($#LLVMDIR == 0 || ! -d "$LLVMDIR") then
+    echo "Unable to find LLVM src-root directory or directory is invalid."
+    echo "Are you within a valid LLVM directory for running gmake?"
+    exit 1
+endif
+
+## Try to determine the obj-root directory automatically if not specified
+## 
+set OBJROOTDIRLIST = ( ${LLVMDIR} $OBJROOTDIRLIST )    ## add src dir
+if ($?OBJROOT == 0) then
+    ## Try to determine object root directory by looking for Makefile.config
+    foreach objdir ( $OBJROOTDIRLIST )
+       if (-f "${objdir}/Makefile.config") then
+           set OBJROOT = ${objdir}
+            break
+        endif
+    end
+    if ($?OBJROOT == 0) then
+       echo "FATAL: Could not choose an obj-root directory from these choices:"
+       echo "       ${OBJROOTDIRLIST}."
+       echo "       You can specify it explicitly using '-obj obj-root'."
+       exit 1
+    endif
+    echo "Using OBJ-ROOT = ${OBJROOT} (specify '-obj obj-root' to override)."
+endif
+if (${OBJROOT} == ${LLVMDIR}) then
+    # run make in the source directory itself
+    set BUILDROOT = .
+else
+    # run make in the in the obj-root tree, in the directory for $cwd
+    set SRCROOT = `sh -c "cd $LLVMDIR; pwd | sed 's/\//\\\//g'"` 
+    set CURSRCDIR = `echo $cwd | sed -e "s/${SRCROOT}//"`
+    set BUILDROOT = ${OBJROOT}/${CURSRCDIR}
+    unset SRCROOT CURSRCDIR
+endif
+if ($DEBUG) then
+    echo "DEBUG: BUILDROOT = $BUILDROOT"
+endif
+if (! -d $BUILDROOT) then
+    echo "FATAL: Invalid build directory: ${BUILDROOT}"
+    exit 1
+endif
+cd $BUILDROOT 
+
+set CMD = "make $GMAKE_OPTS && (cd $LLVMDIR/tools/$EXEC && make $GMAKE_OPTS)"
+
+if ($doit == 1) then
+    csh -f -c "$CMD"
+    set pstatus = $?
+else
+    echo '(NOT EXECUTING) COMMAND:'
+    echo "  $CMD"
+endif
+
 
-gnumake && (cd $LLVMDIR/tools/$EXEC && gnumake)
+#=========================================================
+# CODE TO BE EXECUTED IF INTERRUPT IS RECEIVED
+#=========================================================
+cleanup:
+    exit($pstatus)