Don't print a label for the first MBB in a function.

Compile this:

%_2E_str_8 = external global [75 x sbyte]
implementation   ; Functions:
declare int %printf(sbyte*, ...)
void %test()
        %tmp.101 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([75 x sbyte]* %_2E_str_8, int 0, int 0) )             ; <int> [#uses=0]
        unreachable
}

to this:

main_endif_2E_8:
        save -96, %o6, %o6
        sethi %hi(_2E_str_8), %l0
        add %l0, %lo(_2E_str_8), %o0
        call printf
        nop

instead of this:

main_endif_2E_8:
        save -96, %o6, %o6
        sethi %hi(_2E_str_8), %l0
        or %g0, %lo(_2E_str_8), %l1   ;; extra instruction
        add %l1, %l0, %o0
        call printf
        nop

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25335 91177308-0d34-0410-b5e6-96231b3b80d8

Use the default impl of DYNAMIC_STACKALLOC, allowing us to delete some code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25334 91177308-0d34-0410-b5e6-96231b3b80d8

Use the default lowering of ISD::DYNAMIC_STACKALLOC, delete now dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25333 91177308-0d34-0410-b5e6-96231b3b80d8

Have legalize take care of DYNAMIC_STACKALLOC for us, implement llvm.stacksave/stackrestore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25332 91177308-0d34-0410-b5e6-96231b3b80d8

Allow the target to specify 'expand' if they just require the amount to
be subtracted from the stack pointer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25331 91177308-0d34-0410-b5e6-96231b3b80d8

Implement DYNAMIC_STACKALLOC for V8

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25330 91177308-0d34-0410-b5e6-96231b3b80d8

Fix custom lowering of dynamic_stackalloc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25329 91177308-0d34-0410-b5e6-96231b3b80d8

add a missing break that Reid noticed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25328 91177308-0d34-0410-b5e6-96231b3b80d8

add a missing node name

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25327 91177308-0d34-0410-b5e6-96231b3b80d8

reorder passes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25326 91177308-0d34-0410-b5e6-96231b3b80d8

Token chain results are not always the first or last result.  Consider copyfromreg nodes, where they are the middle result (the flag result is last)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25325 91177308-0d34-0410-b5e6-96231b3b80d8

Cleanup IA64ISD, tell the graph drawer what the symbolic names for the enums are.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25324 91177308-0d34-0410-b5e6-96231b3b80d8

Change ET-Forest to automatically recalculate its DFSnum's if too many slow
queries are made.

Patch by Daniel Berlin!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25323 91177308-0d34-0410-b5e6-96231b3b80d8

silence a warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25322 91177308-0d34-0410-b5e6-96231b3b80d8

Let the inliner update the callgraph to reflect the changes it makes, instead
of doing it ourselves.  This fixes Transforms/Inline/2006-01-14-CallGraphUpdate.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25321 91177308-0d34-0410-b5e6-96231b3b80d8

Teach the inliner to update the CallGraph itself, and have it add edges to
llvm.stacksave/restore when it inserts calls to them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25320 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for a regression last night: the -inline pass wasn't updating
callgraph to include new edges do to inserted llvm.stacksave/llvm.stackrestore
calls.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25319 91177308-0d34-0410-b5e6-96231b3b80d8

Teach inline function how to update the callgraph when it makes changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25318 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new CallGraph::getOrInsertFunction for clients to use when updating
the callgraph.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25317 91177308-0d34-0410-b5e6-96231b3b80d8

Add CallGraph::getOrInsertFunction, to allow clients to update the callgraph
when they change the program

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25316 91177308-0d34-0410-b5e6-96231b3b80d8

FunctionPass's cannot do IPO things.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25315 91177308-0d34-0410-b5e6-96231b3b80d8

add a dump method to CallGraph

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25314 91177308-0d34-0410-b5e6-96231b3b80d8

Remove some duplicated code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25313 91177308-0d34-0410-b5e6-96231b3b80d8

bswap implementation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25312 91177308-0d34-0410-b5e6-96231b3b80d8

Fix generous source of VC++ truncation warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25311 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the instructions for adding an intrinsic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25310 91177308-0d34-0410-b5e6-96231b3b80d8

Add bswap intrinsics as documented in the Language Reference

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25309 91177308-0d34-0410-b5e6-96231b3b80d8

Remove some redundant stuff out of the readme.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25308 91177308-0d34-0410-b5e6-96231b3b80d8

A typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25307 91177308-0d34-0410-b5e6-96231b3b80d8

testcase for PR676: http://llvm.cs.uiuc.edu/PR676

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25306 91177308-0d34-0410-b5e6-96231b3b80d8

Implement a new InvalidateStructLayoutInfo method and add some comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25304 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new InvalidateStructLayoutInfo method and some comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25303 91177308-0d34-0410-b5e6-96231b3b80d8

Make the bswap documentation more to sabre's liking!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25302 91177308-0d34-0410-b5e6-96231b3b80d8

fix some minor errors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25301 91177308-0d34-0410-b5e6-96231b3b80d8

Add documentation for the upcoming bswap intrinsics!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25300 91177308-0d34-0410-b5e6-96231b3b80d8

Added instcombine support for extractelement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25299 91177308-0d34-0410-b5e6-96231b3b80d8

testcase for PR691

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25298 91177308-0d34-0410-b5e6-96231b3b80d8

new testcases for the stackrestore instcombine optimizations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25297 91177308-0d34-0410-b5e6-96231b3b80d8

Add truncstore i1 patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25296 91177308-0d34-0410-b5e6-96231b3b80d8

it is ok to dce stacksave.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25295 91177308-0d34-0410-b5e6-96231b3b80d8

Do a simple instcombine xforms to delete llvm.stackrestore cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25294 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug in my last X86 checkin, pointed out by cozmic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25293 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify this a tiny bit by using the new IntrinsicInst functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25292 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify the implementations of classof using the new IntrinsicInst classof.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25291 91177308-0d34-0410-b5e6-96231b3b80d8

LHS = X86ISD::CMOVcc LHS, RHS  means LHS = RHS if cc. So the operands must be
flipped around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25290 91177308-0d34-0410-b5e6-96231b3b80d8

Add some functionality to the IntrinsicInst class and some comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25289 91177308-0d34-0410-b5e6-96231b3b80d8

Permit inlining functions that contain dynamic allocations now that
InlineFunction handles this case safely.  This implements
Transforms/Inline/dynamic_alloca_test.ll.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25288 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase that functions with dynamic allocas can be inlined, and are
inlined correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25287 91177308-0d34-0410-b5e6-96231b3b80d8

If inlining a call to a function that contains dynamic allocas, wrap the
resultant code with llvm.stacksave/llvm.stackrestore intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25286 91177308-0d34-0410-b5e6-96231b3b80d8

Use ClonedCodeInfo to avoid another walk over the inlined code, this this
time in common C cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25285 91177308-0d34-0410-b5e6-96231b3b80d8

Use the ClonedCodeInfo object to avoid scans of the inlined code when
it doesn't contain any calls.  This is a fairly common case for C++ code,
so it will probably speed up the inliner marginally in these cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25284 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor a bunch of invoke handling stuff out into a new function
"HandleInlinedInvoke".  No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25283 91177308-0d34-0410-b5e6-96231b3b80d8

make DAG isel the default

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25282 91177308-0d34-0410-b5e6-96231b3b80d8

Allow the code cloning interfaces to capture some important info about the
code being cloned if the client wants.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25281 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug I noticed by inspection: if the first instruction in the inlined
function was not an alloca, we wouldn't check the entry block for any allocas,
leading to increased stack space in some cases.  In practice, allocas are almost
always at the top of the block, so this was never noticed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25280 91177308-0d34-0410-b5e6-96231b3b80d8

Fix 80 column violations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25279 91177308-0d34-0410-b5e6-96231b3b80d8

Enable X86 support for savestack/restorestack

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25278 91177308-0d34-0410-b5e6-96231b3b80d8

implement stacksave/stackrestore on PPC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25277 91177308-0d34-0410-b5e6-96231b3b80d8

If a target specified a stack pointer with setStackPointerRegisterToSaveRestore,
lower STACKSAVE/STACKRESTORE into a copy from/to that register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25276 91177308-0d34-0410-b5e6-96231b3b80d8

Provide an interface for Targets to specify their stack pointer register
for llvm.stacksave/restore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25275 91177308-0d34-0410-b5e6-96231b3b80d8

don't be a doofus - this fixes storing bools

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25274 91177308-0d34-0410-b5e6-96231b3b80d8

Compile llvm.stacksave/restore into STACKSAVE/STACKRESTORE nodes, and allow
targets to custom expand them as they desire.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25273 91177308-0d34-0410-b5e6-96231b3b80d8

expand unsupported stacksave/stackrestore nodes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25272 91177308-0d34-0410-b5e6-96231b3b80d8

new nodes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25271 91177308-0d34-0410-b5e6-96231b3b80d8

add stacksave/stackrestore nodes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25270 91177308-0d34-0410-b5e6-96231b3b80d8

testcase for the llvm.stacksave/llvm.stackrestore intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25269 91177308-0d34-0410-b5e6-96231b3b80d8

Add "support" for stacksave/stackrestore to the dag isel

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25268 91177308-0d34-0410-b5e6-96231b3b80d8

Add "support" for the llvm.stacksave/stackrestore intrinsics, this is
used by the C backend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25267 91177308-0d34-0410-b5e6-96231b3b80d8

Add recognition and verification of new llvm.stacksave/llvm.stackrestore intrinsics

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25266 91177308-0d34-0410-b5e6-96231b3b80d8

add new llvm.stacksave/llvm.stackrestore intrinsics

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25265 91177308-0d34-0410-b5e6-96231b3b80d8

Add llvm.stacksave and llvm.stackrestore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25264 91177308-0d34-0410-b5e6-96231b3b80d8

Minor update.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25263 91177308-0d34-0410-b5e6-96231b3b80d8

void* is not legal in LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25262 91177308-0d34-0410-b5e6-96231b3b80d8

More typo's. I need new eye glasses...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25261 91177308-0d34-0410-b5e6-96231b3b80d8

Oops. Typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25260 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a SETCC / BRCOND folding bug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25259 91177308-0d34-0410-b5e6-96231b3b80d8

Test case for a SETCC / BRCOND folding bug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25258 91177308-0d34-0410-b5e6-96231b3b80d8

Fix sint_to_fp (fild*) support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25257 91177308-0d34-0410-b5e6-96231b3b80d8

Add a simple missing fold to produce this:

        subfic r3, r2, 33

instead of this:

        subfic r2, r2, 32
        addi r3, r2, 1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25255 91177308-0d34-0410-b5e6-96231b3b80d8

Specify transformation from GlobalAddress to TargetGlobalAddress and
ExternalSymbol to TargetExternalSymbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25253 91177308-0d34-0410-b5e6-96231b3b80d8

Allow transformation from GlobalAddress to TargetGlobalAddress and
ExternalSymbol to TargetExternalSymbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25252 91177308-0d34-0410-b5e6-96231b3b80d8

If using __main, emit global ctor/dtor list like any other global

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25251 91177308-0d34-0410-b5e6-96231b3b80d8

Don't create rotate instructions in unsupported types, because we don't have
promote/expand code yet.  This fixes the 177.mesa failure on PPC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25250 91177308-0d34-0410-b5e6-96231b3b80d8

Fix branches on FP compares

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25249 91177308-0d34-0410-b5e6-96231b3b80d8

Patch #10 from Saem:
"Extracts a few more methods, reduces some redundancy in the code at
the same time."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25248 91177308-0d34-0410-b5e6-96231b3b80d8

X86ISD::SETCC (e.g. SETEr) produces a flag (so multiple SETCC can be
linked together).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25247 91177308-0d34-0410-b5e6-96231b3b80d8

* Materialize GlobalAddress and ExternalSym with MOV32ri rather than
  LEA32r.
* Do not lower GlobalAddress to TargetGlobalAddress. Let isel does it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25246 91177308-0d34-0410-b5e6-96231b3b80d8

GlobalAddress -> TargetGlobalAddress; ExternalSymbol -> TargetExternalSymbol

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25245 91177308-0d34-0410-b5e6-96231b3b80d8

fix a bug in my previous checkin

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25244 91177308-0d34-0410-b5e6-96231b3b80d8

Give V8ISD nodes symbolic names in dumps

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25243 91177308-0d34-0410-b5e6-96231b3b80d8

Convert the verifier over to use ETForest instead of DominatorSet.  Patch
by Daniel Berlin

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25242 91177308-0d34-0410-b5e6-96231b3b80d8

sabre's (correct) fix means these guys need to be flagged as well (else
the scheduler will complain)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25241 91177308-0d34-0410-b5e6-96231b3b80d8

verily, sabre did leave

and yea! Saem said "ARRR."

meanwhile, the pinksias and the campfires and the ET forests glowed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25240 91177308-0d34-0410-b5e6-96231b3b80d8

ahem :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25239 91177308-0d34-0410-b5e6-96231b3b80d8

these cases are autogenerated

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25238 91177308-0d34-0410-b5e6-96231b3b80d8

remove dead code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25237 91177308-0d34-0410-b5e6-96231b3b80d8

Goodbye PPC pattern isel.  You have served us well, but it is now time for
you to ride off into the sunset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25236 91177308-0d34-0410-b5e6-96231b3b80d8

Fix an itanium call lowering bug for duraid

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25235 91177308-0d34-0410-b5e6-96231b3b80d8

invert the sense of this switch and its name

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25234 91177308-0d34-0410-b5e6-96231b3b80d8

Missed a spot.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25233 91177308-0d34-0410-b5e6-96231b3b80d8