It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/makellvm b/utils/makellvm
new file mode 100755
index 0000000..9c479ef
--- /dev/null
+++ b/utils/makellvm
@@ -0,0 +1,144 @@
+#!/bin/csh -f
+
+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
+ 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"
+else
+ echo '(NOT EXECUTING) COMMAND:'
+ echo " $CMD"
+endif
+
+
+#=========================================================
+# CODE TO BE EXECUTED IF INTERRUPT IS RECEIVED
+#=========================================================
+cleanup:
+ exit($pstatus)