LLVM_CONFIG_PROJECT macro.

llvm-svn: 20313

recommended configuration of projects is now much simplified and depends
on LLVM file presence rather than local project file presence.

llvm-svn: 20312

avoids version conflict problems with ltmain.sh (libtool), mkinstalldirs
and install-sh. This prevents projects from becoming stale when the LLVM
build system is upgraded or modified.

llvm-svn: 20311

* Make the auxilliary directory be llvm/autoconf not the project's
* Use the LLVM_CONFIG_PROJECT macro to get the --with-llvm{src,obj} args

llvm-svn: 20310

llvm-svn: 20309

llvm-svn: 20308

* Make aclocal look in LLVM's autoconf/m4 directory for macros
* Don't force generation of missing files

llvm-svn: 20307

llvm-svn: 20306

in the config.status script. This allows the AC_CONFIG_MAKEFILE macro to
work properly after it was changed to support sub-projects.

llvm-svn: 20305

is in ${srcdir}/autoconf because that is only true if the project is LLVM.
For other projects (e.g. sample), we don't want to have to distribute the
mkinstalldirs or install-sh programs because it opens a window of breakage
for projects. So, this change requires that the llvm_src variable be set
up via another AC_CONFIG_COMMANDS call. For LLVM this is done in the
configure.ac. For projects its done in the LLVM_CONFIG_PROJECT macro.

llvm-svn: 20304

takes care of the --with-llvmsrc and --with-llvmobj options for the project
It was moved here from the project's configure.ac file because there is
some tricky handling of the llvm_src variable to tell the project where the
llvm source tree is (for mkinstalldirs and install-sh commands).

llvm-svn: 20303

reporting the problem and exiting.

llvm-svn: 20302

llvm-svn: 20301

This does a simple form of "jump threading", which eliminates CFG edges that
are provably dead.  This triggers 90 times in the external tests, and
eliminating CFG edges is always always a good thing! :)

llvm-svn: 20300

All CFG edges to DEAD should be eliminated.

llvm-svn: 20299

llvm-svn: 20298

llvm-svn: 20297

llvm-svn: 20296

llvm-svn: 20295

* Consolidate all "install" usage to the install program/script found by
  autoconf which includes the autoconf/install-sh script if necessary
* Change Makefile.rules to not use the -D flag to install but use the
  MKDIR command as necessary.
* Change Makefile.rules to differentiate between installation of executable
  files and regular data files to get the permission modes correct.

llvm-svn: 20294

llvm-svn: 20293

Only print out machine instructions before modulo scheduling if we are actually doing modulo scheduling! :)

llvm-svn: 20292

llvm-svn: 20291

llvm-svn: 20290

llvm-svn: 20289

llvm-svn: 20288

llvm-svn: 20287

this reduces the time for -simplifycfg in a debug build from 106s to 14.82s

llvm-svn: 20286

*** Attempting to perform final cleanups: Final cleanups failed.  Sorry. :(  Ple
ase report a bug!

<llc>llc.exe: bytecode didn't read correctly.
llc.exe: bytecode didn't read correctly.
<crash>
Assertion failed: M && "You can't write a null module!!", file c:\llvm\lib\bytec
ode\writer\writer.cpp, line 1094


The fact that llc bombed (in this case) is ok, but bugpoint shouldn't crash after this.

llvm-svn: 20285

llvm-svn: 20284

llvm-svn: 20280

llvm-svn: 20279

llvm-svn: 20278

llvm-svn: 20277

llvm-svn: 20276

llvm-svn: 20275

llvm-svn: 20274

llvm-svn: 20273

Changing 'op' here caused us to not enter the store into a map, causing
reemission of the code!!  In practice, a simple loop like this:

no_exit:                ; preds = %no_exit, %entry
        %indvar = phi uint [ %indvar.next, %no_exit ], [ 0, %entry ]            ; <uint> [#uses=3]
        %tmp.4 = getelementptr "complex long double"* %P, uint %indvar, uint 0          ; <double*> [#uses=1]
        store double 0.000000e+00, double* %tmp.4
        %indvar.next = add uint %indvar, 1              ; <uint> [#uses=2]
        %exitcond = seteq uint %indvar.next, %N         ; <bool> [#uses=1]
        br bool %exitcond, label %return, label %no_exit

was being code gen'd to:

.LBBtest_1:     # no_exit
        movl %edx, %esi
        shll $4, %esi
        movl $0, 4(%eax,%esi)
        movl $0, (%eax,%esi)
        incl %edx
        movl $0, (%eax,%esi)
        movl $0, 4(%eax,%esi)
        cmpl %ecx, %edx
        jne .LBBtest_1  # no_exit

Note that we are doing 4 32-bit stores instead of 2.  Now we generate:

.LBBtest_1:     # no_exit
        movl %edx, %esi
        incl %esi
        shll $4, %edx
        movl $0, (%eax,%edx)
        movl $0, 4(%eax,%edx)
        cmpl %ecx, %esi
        movl %esi, %edx
        jne .LBBtest_1  # no_exit

This is much happier, though it would be even better if the increment of ESI
was scheduled after the compare :-/

llvm-svn: 20265

llvm-svn: 20264