Implement correct constant folding of bitcast.  This implements
Transforms/ConstProp/bitcast.ll and fixes
SingleSource/Regression/C/2003-10-12-GlobalVarInitializers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32438 91177308-0d34-0410-b5e6-96231b3b80d8

constant folding of bitcast is broken.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32437 91177308-0d34-0410-b5e6-96231b3b80d8

Layout proper frame for ppc64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32436 91177308-0d34-0410-b5e6-96231b3b80d8

Provide a script that can track down which optimization pass causes
different code to be produced between two llvm builds that differe slightly.
This is useful in tracking down mis-optimization bugs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32435 91177308-0d34-0410-b5e6-96231b3b80d8

Don't convert store double C, Ptr to store long C, Ptr if i64 is not a legal type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32434 91177308-0d34-0410-b5e6-96231b3b80d8

f32 / f64 node is expanded to one i32 / i64 node.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32433 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up some bad code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32432 91177308-0d34-0410-b5e6-96231b3b80d8

Move something that should be in the dag combiner from the legalizer to the
dag combiner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32431 91177308-0d34-0410-b5e6-96231b3b80d8

Properly mangles symbol table names
Supports constant pools
Supports relocations to jump tables
Supports relocations within the data segment (global = address of global)
Allocates memory in a non-hacky for all non-code objects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32430 91177308-0d34-0410-b5e6-96231b3b80d8

Add a default relocation type, and allow clients to set the ConstantVal
field after creation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32429 91177308-0d34-0410-b5e6-96231b3b80d8

fix typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32428 91177308-0d34-0410-b5e6-96231b3b80d8

Update note, with the SROA change, we now produce:

_pairtest:
        movl 8(%esp), %eax
        movl 4(%esp), %ecx
        movd %eax, %xmm0
        movd %ecx, %xmm1
        addss %xmm0, %xmm1
        movl 12(%esp), %eax
        movss %xmm1, (%eax)
        ret

instead of:

_pairtest:
        subl $12, %esp
        movl 20(%esp), %eax
        movl %eax, 4(%esp)
        movl 16(%esp), %eax
        movl %eax, (%esp)
        movss (%esp), %xmm0
        addss 4(%esp), %xmm0
        movl 24(%esp), %eax
        movss %xmm0, (%eax)
        addl $12, %esp
        ret

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32427 91177308-0d34-0410-b5e6-96231b3b80d8

trunc to integer, not to FP.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32426 91177308-0d34-0410-b5e6-96231b3b80d8

the xform is done by scalarrepl not the code generator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32425 91177308-0d34-0410-b5e6-96231b3b80d8

this is done

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32424 91177308-0d34-0410-b5e6-96231b3b80d8

Evan implemented the machineinstr improvements.
The rot example works if the type is cast to ubyte.

Move sroa examples together and upgrade them to HEAD syntax.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32423 91177308-0d34-0410-b5e6-96231b3b80d8

implement promotion of unions containing two packed types of the same width.
This implements Transforms/ScalarRepl/union-packed.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32422 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32421 91177308-0d34-0410-b5e6-96231b3b80d8

clarify some comments, simplify some checks, fix:
Regression/Transforms/IndVarsSimplify/2006-12-10-BitCast.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32420 91177308-0d34-0410-b5e6-96231b3b80d8

testcase for a regression introduced by the recent cast patch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32419 91177308-0d34-0410-b5e6-96231b3b80d8

 * Eliminate calls to CastInst::createInferredCast.
 * Add support for promoting unions with fp values in them.  This produces
   our new int<->fp bitcast instructions, implementing
   Transforms/ScalarRepl/union-fp-int.ll

As an example, this allows us to compile this:

union intfloat { int i; float f; };
float invsqrt(const float arg_x) {
    union intfloat x = { .f = arg_x };
    const float xhalf = arg_x * 0.5f;
    x.i = 0x5f3759df - (x.i >> 1);
    return x.f * (1.5f - xhalf * x.f * x.f);
}

into:

_invsqrt:
        movss 4(%esp), %xmm0
        movd %xmm0, %eax
        sarl %eax
        movl $1597463007, %ecx
        subl %eax, %ecx
        movd %ecx, %xmm1
        mulss LCPI1_0, %xmm0
        mulss %xmm1, %xmm0
        movss LCPI1_1, %xmm2
        mulss %xmm1, %xmm0
        subss %xmm0, %xmm2
        movl 8(%esp), %eax
        mulss %xmm2, %xmm1
        movss %xmm1, (%eax)
        ret

instead of:

_invsqrt:
        subl $4, %esp
        movss 8(%esp), %xmm0
        movss %xmm0, (%esp)
        movl (%esp), %eax
        movl $1597463007, %ecx
        sarl %eax
        subl %eax, %ecx
        movl %ecx, (%esp)
        mulss LCPI1_0, %xmm0
        movss (%esp), %xmm1
        mulss %xmm1, %xmm0
        mulss %xmm1, %xmm0
        movss LCPI1_1, %xmm2
        subss %xmm0, %xmm2
        mulss %xmm2, %xmm1
        movl 12(%esp), %eax
        movss %xmm1, (%eax)
        addl $4, %esp
        ret

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32418 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32417 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32416 91177308-0d34-0410-b5e6-96231b3b80d8

Cleaned setjmp/longjmp lowering interfaces. Now we're producing right
code (both asm & cbe) for Mingw32 target.
Removed autoconf checks for underscored versions of setjmp/longjmp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32415 91177308-0d34-0410-b5e6-96231b3b80d8

make statistics and timing info print even if the JIT'd program calls exit
instead of returning from main.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32414 91177308-0d34-0410-b5e6-96231b3b80d8

Reverting until finding the cause of secondary bugs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32413 91177308-0d34-0410-b5e6-96231b3b80d8

__PPC64CompilationCallback code was allowing registers to be clobbered by stub.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32412 91177308-0d34-0410-b5e6-96231b3b80d8

fix PR1039 by making timing info be destroyed by llvm_shutdown, not by
static dtors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32411 91177308-0d34-0410-b5e6-96231b3b80d8

Don't bother with setting the path before running llvm-gcc4, it doesn't
need it like llvm-gcc3 did.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32410 91177308-0d34-0410-b5e6-96231b3b80d8

For PR739:
Define a DESTDIR variable and use it to define the various install
locations. This allows DESTDIR to be overridden on the command line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32409 91177308-0d34-0410-b5e6-96231b3b80d8

.align is in bits
.comm is in bytes
:-(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32408 91177308-0d34-0410-b5e6-96231b3b80d8

fix test/Regression/CodeGen/X86/weak.ll
if a variable has no initialization, I->getInitializer() will fail

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32407 91177308-0d34-0410-b5e6-96231b3b80d8

use a . instead of a % in the grep expression

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32406 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32405 91177308-0d34-0410-b5e6-96231b3b80d8

Fix test/Regression/Assembler/2006-12-09-Cast-To-Bool.ll
Do not upgrade casts of bool to bool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32404 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the run line and make this test more specific.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32403 91177308-0d34-0410-b5e6-96231b3b80d8

Add a check to catch an incorrect upgrade.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32402 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32400 91177308-0d34-0410-b5e6-96231b3b80d8

When upgrading cast to bool to a setne, generate icmp ne instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32399 91177308-0d34-0410-b5e6-96231b3b80d8

Too soon to commit, revert.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32397 91177308-0d34-0410-b5e6-96231b3b80d8

New test cases for regressions in the SetCC -> ICmp patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32396 91177308-0d34-0410-b5e6-96231b3b80d8

Allow the input of the test program to be specified.
Don't generate the reference output for each comparison.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32395 91177308-0d34-0410-b5e6-96231b3b80d8

Preliminary soft float support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32394 91177308-0d34-0410-b5e6-96231b3b80d8

Added option -soft-float to generate SW fp library calls instead of fp instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32393 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed some formatting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32392 91177308-0d34-0410-b5e6-96231b3b80d8

Another example of using the llvm IO streams.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32391 91177308-0d34-0410-b5e6-96231b3b80d8

Add documentation for how to use the new LLVM streams.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32390 91177308-0d34-0410-b5e6-96231b3b80d8

Analysis resolver now manages AnalysisImpls for the given patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32389 91177308-0d34-0410-b5e6-96231b3b80d8

Top level pass manager keeps track of other managers, so this can be
removed now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32388 91177308-0d34-0410-b5e6-96231b3b80d8

Use analysis resolver to find the info.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32387 91177308-0d34-0410-b5e6-96231b3b80d8

Do not drop ImmutablePasses on the floor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32386 91177308-0d34-0410-b5e6-96231b3b80d8

Set AnalysisResolver for the passes when they are inserted into
pass manager queuer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32385 91177308-0d34-0410-b5e6-96231b3b80d8

Add AnalysisResolver_New.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32384 91177308-0d34-0410-b5e6-96231b3b80d8

Add AnalysisResolver_New. It is a replacement for existing
AnalysisResolver.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32383 91177308-0d34-0410-b5e6-96231b3b80d8

Keep track of other pass managers, that are not directly managed by
top level manager. Use this info to findAnalysisPass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32382 91177308-0d34-0410-b5e6-96231b3b80d8

Implement top level FunctionPassManager::run(Function &F)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32381 91177308-0d34-0410-b5e6-96231b3b80d8

Do not keep yet another list of pass managers in PassManagerImpl_New.
Use one provided by toplevel manager.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32380 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused schedulePass() parameter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32379 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused getAnalysisPass and getAnalysisPassFromManager

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32378 91177308-0d34-0410-b5e6-96231b3b80d8

Implement PMTopLevel::findAnalysisPass() and
PMDataManager::findAnalysisPass()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32377 91177308-0d34-0410-b5e6-96231b3b80d8

%progbits not @progbits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32376 91177308-0d34-0410-b5e6-96231b3b80d8

Incorporate any changes in the successor blocks into the result of
MarkAliveBlocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32375 91177308-0d34-0410-b5e6-96231b3b80d8

add missing &&

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32374 91177308-0d34-0410-b5e6-96231b3b80d8

add \"aw\",@progbits" to ctors and dtors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32373 91177308-0d34-0410-b5e6-96231b3b80d8

Change the implementation of statistic to not need destructors at all.
Instead, the stat info is printed when llvm_shutdown() is called.
These also don't need static ctors, but getting rid of them is uglier:
still investigating.  This reduces the number of static dtors in llvm from
~1400 to ~750.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32372 91177308-0d34-0410-b5e6-96231b3b80d8

During runOnModule() do initialization and finalization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32371 91177308-0d34-0410-b5e6-96231b3b80d8

Reuse code. Directly use runOnFunction().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32370 91177308-0d34-0410-b5e6-96231b3b80d8

Add the -ldl library option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32369 91177308-0d34-0410-b5e6-96231b3b80d8

Implement FunctionPassManager_New::FunctionPassManager_New(ModuleProvider *P)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32368 91177308-0d34-0410-b5e6-96231b3b80d8

test packed struct codegen on x86

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32367 91177308-0d34-0410-b5e6-96231b3b80d8

Move findTiedToSrcOperand to TargetInstrDescriptor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32366 91177308-0d34-0410-b5e6-96231b3b80d8

packed initializers too in the test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32365 91177308-0d34-0410-b5e6-96231b3b80d8

fix truncstorei1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32364 91177308-0d34-0410-b5e6-96231b3b80d8

feature test for packed structs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32363 91177308-0d34-0410-b5e6-96231b3b80d8

Hopefully these are the regenerated files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32362 91177308-0d34-0410-b5e6-96231b3b80d8

Packed Structures

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32361 91177308-0d34-0410-b5e6-96231b3b80d8

A backwards compatible bc format for packed structs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32360 91177308-0d34-0410-b5e6-96231b3b80d8

This test needs to be upgraded.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32359 91177308-0d34-0410-b5e6-96231b3b80d8

For PR950:
Add a test for a regression in combining of ICmp instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32358 91177308-0d34-0410-b5e6-96231b3b80d8

Packed Structure Definitions (docs)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32357 91177308-0d34-0410-b5e6-96231b3b80d8

Proper fix for PR1037: to determine is a VR is a modref, check 1) whether it is
tied to another oeprand, 2) whether is is being tied to by another operand. So
the destination operand of a two-address MI can be correctly identified.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32354 91177308-0d34-0410-b5e6-96231b3b80d8

findTiedToSrcOperand() changed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32353 91177308-0d34-0410-b5e6-96231b3b80d8

Use MI's TargetInstrDescriptor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32352 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug introduced by the streams patch.  DEBUG code was made unconditional.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32351 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32350 91177308-0d34-0410-b5e6-96231b3b80d8

this warning is obsolete with llvmgcc3 being gone

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32349 91177308-0d34-0410-b5e6-96231b3b80d8

this is an initial patch to switch the ppc64 jit over to working in PIC mode,
which allows the code to be above the 2G marker.  We still need to JIT emit
dyld stubs to support external, weak, common, etc globals, but that will
happen tomorrow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32348 91177308-0d34-0410-b5e6-96231b3b80d8

add a note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32347 91177308-0d34-0410-b5e6-96231b3b80d8

BasicBlockPassManager_New::runOnFunction()
Do initialization and finalization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32346 91177308-0d34-0410-b5e6-96231b3b80d8

doInitialization and doFinalization for BasicBlockPassManager_New

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32345 91177308-0d34-0410-b5e6-96231b3b80d8

Reimplement removeDeadPasses().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32344 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify a bit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32343 91177308-0d34-0410-b5e6-96231b3b80d8

set Last User.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32342 91177308-0d34-0410-b5e6-96231b3b80d8

fix incorrect encoding of rldicr, used by ppc64 function stubs, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32341 91177308-0d34-0410-b5e6-96231b3b80d8

Don't use <sstream> in Streams.h but <iosfwd> instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32340 91177308-0d34-0410-b5e6-96231b3b80d8

Maintain level(or depth) of pass manager in pass manager food chain.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32339 91177308-0d34-0410-b5e6-96231b3b80d8

New method, PMDataManager::collectRequiredAnalysisPasses()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32338 91177308-0d34-0410-b5e6-96231b3b80d8

fix alignment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32337 91177308-0d34-0410-b5e6-96231b3b80d8

Fix CodeGen/PowerPC/2006-12-07-SelectCrash.ll on PPC64

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32336 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32335 91177308-0d34-0410-b5e6-96231b3b80d8