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* Update the saved stack pointer in the sjlj function context following eitherJim Grosbach2010-05-272-14/+52
| | | | | | | | an alloca() or an llvm.stackrestore(). rdar://8031573 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104900 91177308-0d34-0410-b5e6-96231b3b80d8
* back out 104862/104869. Can reuse stacksave after all. Very cool.Jim Grosbach2010-05-271-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104897 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not drop location info for inlined function args.Devang Patel2010-05-271-2/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104884 91177308-0d34-0410-b5e6-96231b3b80d8
* hook ISD::STACKADDR to an intrinsicJim Grosbach2010-05-271-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104869 91177308-0d34-0410-b5e6-96231b3b80d8
* inlined function's arguments need a label to mark the start point because ↵Devang Patel2010-05-271-2/+5
| | | | | | they are not directly attached to current function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104848 91177308-0d34-0410-b5e6-96231b3b80d8
* Support for nested functions/classes in debug output. Radar 7424645.Stuart Hastings2010-05-271-0/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104841 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify. Eliminate unneeded debug_loc entry.Devang Patel2010-05-261-9/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104785 91177308-0d34-0410-b5e6-96231b3b80d8
* Add FIXME comment to remove this.Bill Wendling2010-05-261-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104749 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: Add TargetMachine support for setting the value of MCRelaxAll withDaniel Dunbar2010-05-261-2/+4
| | | | | | -filetype=obj. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104747 91177308-0d34-0410-b5e6-96231b3b80d8
* There is no need to force an line number entry (using previous location) for ↵Devang Patel2010-05-261-4/+3
| | | | | | a temp label at unknown location. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104740 91177308-0d34-0410-b5e6-96231b3b80d8
* Add "setjmp_syscall", "savectx", "qsetjmp", "vfork", "getcontext" to the list ofBill Wendling2010-05-261-21/+24
| | | | | | | usual suspects that could "return twice". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104737 91177308-0d34-0410-b5e6-96231b3b80d8
* Adjust eh.sjlj.setjmp to properly have a chain and to have an opcode entry inJim Grosbach2010-05-262-1/+9
| | | | | | | | ISD::. No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104734 91177308-0d34-0410-b5e6-96231b3b80d8
* Update debug info when live-in reg is copied into a vreg.Devang Patel2010-05-261-0/+22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104732 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the check for "calls setjmp" to SelectionDAGISel so that it can be used byBill Wendling2010-05-262-32/+33
| | | | | | | more than just the stack slot coloring algorithm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104722 91177308-0d34-0410-b5e6-96231b3b80d8
* Identify instructions, that needs a label to mark debug info entity, in ↵Devang Patel2010-05-262-37/+68
| | | | | | advance. This simplifies beginScope(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104720 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate the use of PriorityQueue and just use a std::vector,Dan Gohman2010-05-262-8/+41
| | | | | | | | | implementing pop with a linear search for a "best" element. The priority queue was a neat idea, but in practice the comparison functions depend on dynamic information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104718 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete an unused function.Dan Gohman2010-05-261-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104716 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead code.Devang Patel2010-05-262-11/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104706 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not construct location list backword!Devang Patel2010-05-261-13/+17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104705 91177308-0d34-0410-b5e6-96231b3b80d8
* Temporarily revert r104655 as it's breaking the bots.Eric Christopher2010-05-262-39/+37
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104664 91177308-0d34-0410-b5e6-96231b3b80d8
* Change push_all to a non-virtual function and implement it in theDan Gohman2010-05-262-6/+1
| | | | | | | base class, since all the implementations are the same. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104659 91177308-0d34-0410-b5e6-96231b3b80d8
* Trim #include.Dan Gohman2010-05-261-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104657 91177308-0d34-0410-b5e6-96231b3b80d8
* Dale and Evan suggested putting the "check for setjmp" much earlier in theBill Wendling2010-05-262-37/+39
| | | | | | | machine code generation. That's a good idea, so I made it so. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104655 91177308-0d34-0410-b5e6-96231b3b80d8
* First cut at supporting .debug_loc section. Devang Patel2010-05-253-87/+253
| | | | | | | This is used to track variable information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104649 91177308-0d34-0410-b5e6-96231b3b80d8
* Constify function.Bill Wendling2010-05-251-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104646 91177308-0d34-0410-b5e6-96231b3b80d8
* Do one map lookup instead of two.Dan Gohman2010-05-251-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104645 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the verbose asm output up a bit so it can be used in the special casesEric Christopher2010-05-251-5/+6
| | | | | | | as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104642 91177308-0d34-0410-b5e6-96231b3b80d8
* Okay, bear with me here...Bill Wendling2010-05-251-0/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If you have a setjmp/longjmp situation, it's possible for stack slot coloring to reuse a stack slot before it's really dead. For instance, if we have something like this: 1: y = g; x = sigsetjmp(env, 0); switch (x) { case 1: /* ... */ goto run; case 0: run: do_run(); /* marked as "no return" */ break; case 3: if (...) { /* ... */ goto run; } /* ... */ break; } 2: g = y; "y" may be put onto the stack, so the expression "g = y" is relying upon the fact that the stack slot containing "y" isn't modified between (1) and (2). But it can be, because of the "no return" calls in there. A longjmp might come back with 3, modify the stack slot, and then go to case 0. And it's perfectly acceptable to reuse the stack slot there because there's no CFG flow from case 3 to (2). The fix is to disable certain optimizations in these situations. Ideally, we'd disable them for all "returns twice" functions. But we don't support that attribute. Check for "setjmp" and "sigsetjmp" instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104640 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for initialized global data for darwin tls. Update commentsEric Christopher2010-05-252-7/+19
| | | | | | | and testcases accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104635 91177308-0d34-0410-b5e6-96231b3b80d8
* Print symbolic SubRegIndex names on machine operands.Jakob Stoklund Olesen2010-05-251-2/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104628 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix another variant of PR 7191. Also add a testcaseDale Johannesen2010-05-251-1/+5
| | | | | | | | | | Mon Ping provided; unfortunately bugpoint failed to reduce it, but I think it's important to have a test for this in the suite. 8023512. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104624 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR 7191. I have been unable to create a .ll file that fails, sorry.Dale Johannesen2010-05-251-2/+10
| | | | | | | | | (oye, a word which should be better known to people writing tree traversals, means grandchild.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104619 91177308-0d34-0410-b5e6-96231b3b80d8
* Disable invalid coalescer assertion.Jakob Stoklund Olesen2010-05-251-1/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104574 91177308-0d34-0410-b5e6-96231b3b80d8
* Print out the name of the function during SSC.Bill Wendling2010-05-241-1/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104572 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid adding duplicate function live-in's.Evan Cheng2010-05-242-2/+17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104560 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not emit line number entries for unknown debug values.Devang Patel2010-05-241-0/+3
| | | | | | | This fixes recent regression in store.exp from gdb testsuite. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104524 91177308-0d34-0410-b5e6-96231b3b80d8
* Encode the Caml frametable by following what the comment says: the number of ↵Nicolas Geoffray2010-05-241-5/+22
| | | | | | | | | | descriptors is first emitted, and StackOffsets are emitted in 16 bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104488 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: Add an MCLoggingStreamer, for use in debugging integrated-as mismatches.Daniel Dunbar2010-05-231-1/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104463 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement @llvm.returnaddress. rdar://8015977.Evan Cheng2010-05-221-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104421 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement eh.sjlj.longjmp for ARM. Clean up the intrinsic a bit.Jim Grosbach2010-05-221-0/+5
| | | | | | | Followups: docs patch for the builtin and eh.sjlj.setjmp cleanup to match longjmp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104419 91177308-0d34-0410-b5e6-96231b3b80d8
* Add full bss data support for darwin tls variables.Eric Christopher2010-05-222-3/+34
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104414 91177308-0d34-0410-b5e6-96231b3b80d8
* Collect variable information during endFunction() instead of beginFunction().Devang Patel2010-05-221-12/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104412 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up extra whitespace.Bob Wilson2010-05-211-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104410 91177308-0d34-0410-b5e6-96231b3b80d8
* Make this LookAheadLimit, not the uninitialized LookAheadLeft.Eric Christopher2010-05-211-1/+1
| | | | | | | Evan please verify! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104408 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow machine cse to cse instructions which define physical registers. ↵Evan Cheng2010-05-211-27/+81
| | | | | | Controlled by option -machine-cse-phys-defs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104385 91177308-0d34-0410-b5e6-96231b3b80d8
* Change CodeGen/ARM/2009-11-02-NegativeLane.ll to use 16-bit vector elementsBob Wilson2010-05-211-0/+7
| | | | | | | | | so that it will continue to test what it was meant to test when I commit a separate change for better support of BUILD_VECTOR and VECTOR_SHUFFLE for Neon. Fix a DAG combiner crash exposed by this test change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104380 91177308-0d34-0410-b5e6-96231b3b80d8
* - Change MachineInstr::findRegisterDefOperandIdx so it can also look for defsEvan Cheng2010-05-216-18/+24
| | | | | | | | | | | that are aliases of the specified register. - Rename modifiesRegister to definesRegister since it's looking a def of the specific register or one of its super-registers. It's not looking for def of a sub-register or alias that could change the specified register. - Added modifiesRegister to look for defs of aliases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104377 91177308-0d34-0410-b5e6-96231b3b80d8
* Add MachineInstr::readsWritesVirtualRegister() to determine if an instructionJakob Stoklund Olesen2010-05-211-11/+15
| | | | | | | | | | reads or writes a register. This takes partial redefines and undef uses into account. Don't actually use it yet. That caused miscompiles. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104372 91177308-0d34-0410-b5e6-96231b3b80d8
* SimplifyDevang Patel2010-05-211-44/+23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104338 91177308-0d34-0410-b5e6-96231b3b80d8
* constify accessor.Chris Lattner2010-05-211-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104325 91177308-0d34-0410-b5e6-96231b3b80d8
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