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                          README FOR RTL ASSIGNMENTS
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1. Untar a fresh gcc-4.5.0 tarball inside your work folder.

2. Download the rtl-base-code-patch here. 

   Doing a `ls` now should give you the output:
      gcc-4.5.0    rtl-base-code-patch

3. Apply the rtl-base-code-patch by following the given steps:
   (i) `cd` to gcc-4.5.0
   (ii) patch -p1 < ../rtl-base-code-patch

4. In your source directory, make two new folders:
      mkdir build install
   Let $BUILD be the absolute path to build directory, and
   $INSTALL be the absolute path to install directory.
   
   Doing a `ls` now should give you the output:
      build	gcc-4.5.0     install    rtl-base-code-patch

   Go to the $BUILD directory.
   
5. Configure gcc by the command `../gcc-4.5.0/configure --enable-languages=c --prefix=$INSTALL`
   
6. Build gcc by the command `make cc1`
   
7. Run testcases as:
   $BUILD/cc1 -da -fdump-new-rtl-pass filename.c   
   Inspect dump file: filename.c.142r.new_rtl_pass



Do assignment by expanding the given base code.