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* Revert r75610 (and r75620, which was blocking the revert), in the hopes ofDaniel Dunbar2009-07-141-2/+2
| | | | | | | | | | | | | | | unbreaking llvm-gcc (on Darwin). --- Reverse-merging r75620 into '.': U include/llvm/Support/Mangler.h --- Reverse-merging r75610 into '.': U test/CodeGen/X86/loop-hoist.ll G include/llvm/Support/Mangler.h U lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp U lib/VMCore/Mangler.cpp git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75636 91177308-0d34-0410-b5e6-96231b3b80d8
* Change the X86 asmprinter to use the mangler to apply suffixes like ↵Chris Lattner2009-07-141-2/+2
| | | | | | | | | | | | | | | | | | "$non_lazy_ptr" to symbols instead of doing it with "printSuffixedName". This gets us to the point where there is a real separation between computing a symbol name and printing it, something I need for MC printer stuff. This patch also fixes a corner case bug where unnamed private globals wouldn't get the private label prefix. Next up, rename all uses of getValueName -> getMangledName for better greppability, and then tackle the ppc/arm backends to eliminate "printSuffixedName". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75610 91177308-0d34-0410-b5e6-96231b3b80d8
* Change the internal interface to makeNameProper to take a bool thatChris Lattner2009-07-142-8/+8
| | | | | | | | | | | | | | indicates whether the label is private or not, instead of taking prefix stuff. One effect of this is that symbols will be generated with *just* the private prefix, instead of both the private prefix *and* the user-label-prefix, but this doesn't matter as long as it is consistent. For example we'll now get "Lfoo" instead of "L_foo". These are just assembler temporary labels anyway, so they never even make it into the .o file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75607 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix trivial todo in instcombine.Eli Friedman2009-07-141-0/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75586 91177308-0d34-0410-b5e6-96231b3b80d8
* Update LoopSimplify and LoopUnswitch to use the new makeLoopInvariantDan Gohman2009-07-141-2/+2
| | | | | | | function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75584 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix indvars to not assume that a loop with a single unique exitDan Gohman2009-07-141-0/+47
| | | | | | | block has a single unique exiting block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75579 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix detection of valid BFC immediates.David Goodwin2009-07-141-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75576 91177308-0d34-0410-b5e6-96231b3b80d8
* Check for the correct unnamed name.Bill Wendling2009-07-141-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75573 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't delete asm's just because their inputs are undefined;Dale Johannesen2009-07-141-0/+11
| | | | | | | | xor R, R is a common and valid idiom for zeroing a register, for example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75571 91177308-0d34-0410-b5e6-96231b3b80d8
* Added llvm-mc support for parsing the .abort directive.Kevin Enderby2009-07-131-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75545 91177308-0d34-0410-b5e6-96231b3b80d8
* Check in a reduced version of this testcase.Dan Gohman2009-07-131-17376/+563
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75544 91177308-0d34-0410-b5e6-96231b3b80d8
* Two changes:Chris Lattner2009-07-131-2/+1
| | | | | | | | | | | | 1) unique globals with the existing "Count" local in Mangler, not with atomic nonsense. Using atomics will give us nondeterminstic output from the compiler when using multiple threads, which is bad. 2) Do not mangle an unknown global name with a type suffix. We don't need this anymore now that llvm ir doesn't have type planes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75541 91177308-0d34-0410-b5e6-96231b3b80d8
* PR4548: optimize zext+udiv+trunc to udiv.Eli Friedman2009-07-131-0/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75539 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix bug in run-line.Eli Friedman2009-07-131-3/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75534 91177308-0d34-0410-b5e6-96231b3b80d8
* Add testcases for PR4538, PR4537, and PR4534.Dan Gohman2009-07-133-0/+17780
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75533 91177308-0d34-0410-b5e6-96231b3b80d8
* Canonicalize boolean +/- a constant to a select.Eli Friedman2009-07-131-0/+31
| | | | | | | | | | (I think it's reasonably clear that we want to have a canonical form for constructs like this; if anyone thinks that a select is not the best canonical form, please tell me.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75531 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply 75252, with a fix to avoid the infinite recursion case. TheDan Gohman2009-07-131-1/+0
| | | | | | | | check for avoiding re-analyzing a widening cast needed to happen earlier, as getSCEV itself may result in a isLoopGuardedByCond query. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75511 91177308-0d34-0410-b5e6-96231b3b80d8
* add llvm-mc support for parsing the .subsections_via_symbols directive.Kevin Enderby2009-07-131-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75500 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the re-sort of invalidated NonLocalPointerDeps cache earlierChris Lattner2009-07-131-0/+67
| | | | | | | | | | | | so that all code paths get it. PR4256 was about a case where the phi translation loop would find all preds in the Visited cache, so it could get by without re-sorting the NonLocalPointerDeps cache. Fix this by resorting it earlier, there is no reason not to do this. This patch inspired by Jakub Staszak's patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75476 91177308-0d34-0410-b5e6-96231b3b80d8
* remove tests for removed intrinsics.Chris Lattner2009-07-122-49/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75433 91177308-0d34-0410-b5e6-96231b3b80d8
* add nounwindChris Lattner2009-07-121-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75407 91177308-0d34-0410-b5e6-96231b3b80d8
* Darwin prepends an _ to internal globals, Linux doesn't.Nick Lewycky2009-07-111-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75405 91177308-0d34-0410-b5e6-96231b3b80d8
* fix x86-64 static codegen to materialize the address of a global with movl ↵Chris Lattner2009-07-111-37/+37
| | | | | | | | | | | | | | | | | | | | instead of lea. It is better for code size (and presumably efficiency) to use: movl $foo, %eax rather than: leal foo, eax Both give a nice zero extending "move immediate" instruction, the former is just smaller. Note that global addresses should be handled different by the x86 backend, but I chose to follow the style already in place and add more fixme's. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75403 91177308-0d34-0410-b5e6-96231b3b80d8
* this test was incorrect for x86-64 static. It passed on darwin, because darwinChris Lattner2009-07-111-1/+5
| | | | | | | doesn't have static x86-64 mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75392 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r75252 which was causing some crashes at compile time.Nick Lewycky2009-07-111-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75384 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR4533, which is about buggy codegen in x86-64 -static mode.Chris Lattner2009-07-111-20/+557
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Basically, using: lea symbol(%rip), %rax is not valid in -static mode, because the current RIP may not be within 32-bits of "symbol" when an app is built partially pic and partially static. The fix for this is to compile it to: lea symbol, %rax It would be better to codegen this as: movq $symbol, %rax but that will come next. The hard part of fixing this bug was fixing abi-isel, which was actively testing for the wrong behavior. Also, the RUN lines are completely impossible to understand what they are testing. To help with this, convert the -static x86-64 codegen tests to use filecheck. This is much more stable and makes it more clear what the codegen is expected to be. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75382 91177308-0d34-0410-b5e6-96231b3b80d8
* We get the P modifier wrong in a lot of cases, just add some more rigorous ↵Chris Lattner2009-07-111-30/+59
| | | | | | | | | testing. In addition to fixing this, I still need to do some more testing on darwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75362 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't put IT instruction before conditional branches.Evan Cheng2009-07-111-0/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75361 91177308-0d34-0410-b5e6-96231b3b80d8
* Smarter isel of ldrsb / ldrsh. Only make use of these when [r,r] address is ↵Evan Cheng2009-07-111-5/+12
| | | | | | feasible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75360 91177308-0d34-0410-b5e6-96231b3b80d8
* Major changes to Thumb (not Thumb2). Many 16-bit instructions either ↵Evan Cheng2009-07-112-2/+14
| | | | | | | | | modifies CPSR when they are outside the IT blocks, or they can predicated when in Thumb2. Move the implicit def of CPSR to an optional def which defaults CPSR. This allows the 's' bit to be toggled dynamically. A side-effect of this change is asm printer is now using unified assembly. There are some minor clean ups and fixes as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75359 91177308-0d34-0410-b5e6-96231b3b80d8
* add support for .zerofill, patch by Kevin Enderby!Chris Lattner2009-07-101-0/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75301 91177308-0d34-0410-b5e6-96231b3b80d8
* convert test to use FileCheck, which is much more precise and faster thanChris Lattner2009-07-101-7/+21
| | | | | | | | the previous RUN lines. Hopefully this will be an inspiration for future tests :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75261 91177308-0d34-0410-b5e6-96231b3b80d8
* Generalize ScalarEvolution's cast-folding code to support more kindsDan Gohman2009-07-101-0/+143
| | | | | | | | of loops. Add several new functions to for working with ScalarEvolution's add-hoc value-range analysis functionality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75252 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a thumb2 pass to insert IT blocks.Evan Cheng2009-07-102-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75218 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove a bogus assertion.Evan Cheng2009-07-101-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75206 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle 'a' modifier on inline assembly operands.Bob Wilson2009-07-091-0/+7
| | | | | | | This is part of the fix for pr4521. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75201 91177308-0d34-0410-b5e6-96231b3b80d8
* Make EXTRACT_VECTOR_ELT a bit more flexible in terms of the returned Eli Friedman2009-07-092-0/+19
| | | | | | | | | | | value. Adjust other code to deal with that correctly. Make DAGTypeLegalizer::PromoteIntRes_EXTRACT_VECTOR_ELT take advantage of this new flexibility to simplify the code and make it deal with unusual vectors (like <4 x i1>) correctly. Fixes PR3037. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75176 91177308-0d34-0410-b5e6-96231b3b80d8
* add llvm-mc support for parsing the .lcomm directive, patch by Kevin Enderby!Chris Lattner2009-07-091-0/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75148 91177308-0d34-0410-b5e6-96231b3b80d8
* There's no need to consider PHI nodes in the same block as the instructionNick Lewycky2009-07-092-0/+74
| | | | | | | we're inserting sigma/phi functions for. Patch by Andre Tavares. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75138 91177308-0d34-0410-b5e6-96231b3b80d8
* Targets sometimes assign fixed stack object to spill certain callee-savedEvan Cheng2009-07-093-2/+4
| | | | | | | | | | | registers based on dynamic conditions. For example, X86 EBP/RBP, when used as frame register has to be spilled in the first fixed object. It should inform PEI this so it doesn't get allocated another stack object. Also, it should not be spilled as other callee-saved registers but rather its spilling and restoring are being handled by emitPrologue and emitEpilogue. Avoid spilling it twice. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75116 91177308-0d34-0410-b5e6-96231b3b80d8
* Improved tracking of value number kills. VN kills are now representedLang Hames2009-07-091-1/+1
| | | | | | | | | | | | | | as an (index,bool) pair. The bool flag records whether the kill is a PHI kill or not. This code will be used to enable splitting of live intervals containing PHI-kills. A slight change to live interval weights introduced an extra spill into lsr-code-insertion (outside the critical sections). The test condition has been updated to reflect this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75097 91177308-0d34-0410-b5e6-96231b3b80d8
* remove eh, convert to FileCheck styleChris Lattner2009-07-091-6/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75087 91177308-0d34-0410-b5e6-96231b3b80d8
* we have no tests for dllimport/export. Add one.Chris Lattner2009-07-091-0/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75085 91177308-0d34-0410-b5e6-96231b3b80d8
* * add some assertions for sanity checking.Chris Lattner2009-07-091-1/+1
| | | | | | | | | | * remove some old code that was needed when we'd put ESP in the scale instead of the base of some instructions. * Fix a bug with the P modifier in inline asm that caused us to drop it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75077 91177308-0d34-0410-b5e6-96231b3b80d8
* add a test for dale's recent change.Chris Lattner2009-07-091-11/+34
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75074 91177308-0d34-0410-b5e6-96231b3b80d8
* switch test to FileCheck-style and test the P and non-P cases.Chris Lattner2009-07-081-4/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75071 91177308-0d34-0410-b5e6-96231b3b80d8
* rename a test to make it a feature test.Chris Lattner2009-07-081-0/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75070 91177308-0d34-0410-b5e6-96231b3b80d8
* Use common code for both ARM and Thumb-2 instruction and register info.David Goodwin2009-07-082-3/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75067 91177308-0d34-0410-b5e6-96231b3b80d8
* Drop "constant" from Devang Patel2009-07-083-4/+5
| | | | | | | !0 = constant metadata !{...} git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75057 91177308-0d34-0410-b5e6-96231b3b80d8
* Update SLotTracker to handle MDNode slots.Devang Patel2009-07-081-3/+4
| | | | | | | | Simplify MDNode printing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75053 91177308-0d34-0410-b5e6-96231b3b80d8
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