llvm-svn: 18363

implementation

llvm-svn: 18358

llvm-svn: 18357

llvm-svn: 18356

SearchForAddressOfSymbol.

llvm-svn: 18355

llvm-svn: 18353

more platforms than LLVM supports.

llvm-svn: 18352

llvm-svn: 18346

llvm-svn: 18345

llvm-svn: 18344

opened as if it was a dynamic library so its symbols can be searched too.

llvm-svn: 18341

to Brian and the Sun compiler for pointing out that the obvious works :)

This also enables folding all long comparisons into setcc and branch
instructions: before we could only do == and !=

For example, for:
void test(unsigned long long A, unsigned long long B) {
   if (A < B) foo();
 }

We now generate:

test:
        subl $4, %esp
        movl %esi, (%esp)
        movl 8(%esp), %eax
        movl 12(%esp), %ecx
        movl 16(%esp), %edx
        movl 20(%esp), %esi
        subl %edx, %eax
        sbbl %esi, %ecx
        jae .LBBtest_2  # UnifiedReturnBlock
.LBBtest_1:     # then
        call foo
        movl (%esp), %esi
        addl $4, %esp
        ret
.LBBtest_2:     # UnifiedReturnBlock
        movl (%esp), %esi
        addl $4, %esp
        ret

Instead of:

test:
        subl $12, %esp
        movl %esi, 8(%esp)
        movl %ebx, 4(%esp)
        movl 16(%esp), %eax
        movl 20(%esp), %ecx
        movl 24(%esp), %edx
        movl 28(%esp), %esi
        cmpl %edx, %eax
        setb %al
        cmpl %esi, %ecx
        setb %bl
        cmove %ax, %bx
        testb %bl, %bl
        je .LBBtest_2   # UnifiedReturnBlock
.LBBtest_1:     # then
        call foo
        movl 4(%esp), %ebx
        movl 8(%esp), %esi
        addl $12, %esp
        ret
.LBBtest_2:     # UnifiedReturnBlock
        movl 4(%esp), %ebx
        movl 8(%esp), %esi
        addl $12, %esp
        ret

llvm-svn: 18330

Reworked branching so we don't handle BAs specially. It just updates the branchTO regardless of what type of branch it is.

llvm-svn: 18322

Fixed bug where instructions in the kernel were not ordered right to preserve dependencies in a cycle.

llvm-svn: 18314

* Make sure we handle signed to unsigned conversion correctly
* Move this visitSetCondInst case to its own method.

llvm-svn: 18312

llvm-svn: 18311

llvm-svn: 18309

llvm-svn: 18308

PR449

llvm-svn: 18306

llvm-svn: 18303

llvm-svn: 18300

a must alias set unless all of the pointers in the resultant set are must
aliased together.

llvm-svn: 18275

occurs many times in crafty

llvm-svn: 18273

place to help bring up the PowerPC back end on Darwin.  This code is no
longer serves any purpose now that the AsmPrinter does the right thing
all the time printing GlobalValues.  --Cruft.

llvm-svn: 18267

llvm-svn: 18266

allows us to hoist more loads in some cases.

llvm-svn: 18265

llvm-svn: 18264

llvm-svn: 18263

llvm-svn: 18262

the global.

This implements Regression/Analysis/BasicAA/global-size.ll

llvm-svn: 18261

llvm-svn: 18251

llvm-svn: 18250

llvm-svn: 18249

llvm-svn: 18246

llvm-svn: 18245

-lstdsup++ no -lc be passed on the command line to llvm linkers if the
progam being linked was compiled with the C/C++ Front End or Stacker.

llvm-svn: 18243

Make sure lines don't exceed 80 cols.

llvm-svn: 18242

static global variables whose addresses are taken.  This allows us to
convert the following code for taking the address of a static function foo

        addis r2, r30, ha16(Ll1__2E_foo_2$non_lazy_ptr-"L00001$pb")
        lwz r3, lo16(Ll1__2E_foo_2$non_lazy_ptr-"L00001$pb")(r2)

which also includes linker stub code emitted at the end of the .s file not
shown here, and replace it with this:

        addis r2, r30, ha16(l1__2E_foo_2-"L00001$pb")
        la r3, lo16(l1__2E_foo_2-"L00001$pb")(r2)

which in addition to not needing linker help, also has no load instruction.
For those not up on PowerPC mnemonics, la is shorthand for add immediate.

llvm-svn: 18239

llvm-svn: 18235

llvm-svn: 18228