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* Add a VT argument to getMinimalPhysRegClass and replace the copy related usesRafael Espindola2010-06-298-11/+18
| | | | | | | | | of getPhysicalRegisterRegClass with it. If we want to make a copy (or estimate its cost), it is better to use the smallest class as more efficient operations might be possible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107140 91177308-0d34-0410-b5e6-96231b3b80d8
* getMachineBasicBlockAddress returns a uintptr_t - don't truncateDuncan Sands2010-06-291-1/+1
| | | | | | | | to unsigned only to extend back to a pointer sized value on the next line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107139 91177308-0d34-0410-b5e6-96231b3b80d8
* The variable ValueSize is set to 1 on both code paths, and thenDuncan Sands2010-06-291-5/+1
| | | | | | | ignored! Remove it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107138 91177308-0d34-0410-b5e6-96231b3b80d8
* The variable "Value" is carefully set to Layout.getSymbolAddress,Duncan Sands2010-06-291-4/+0
| | | | | | | but then not actually used - maybe a bug? Remove the variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107137 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused calls to Lexer.getLoc and the pointless variable HasFillExpr.Duncan Sands2010-06-291-7/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107136 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove pointless variable LastDef.Duncan Sands2010-06-291-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107135 91177308-0d34-0410-b5e6-96231b3b80d8
* Looks like this test is missing an XFAIL line.Duncan Sands2010-06-291-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107134 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused variable Loc and pointless variables unified_syntaxDuncan Sands2010-06-291-15/+4
| | | | | | | and thumb_mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107133 91177308-0d34-0410-b5e6-96231b3b80d8
* use ArgOperand APIsGabor Greif2010-06-291-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107132 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove an unused and a pointless variable.Duncan Sands2010-06-291-3/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107131 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove pointless and unused variables.Duncan Sands2010-06-291-9/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107130 91177308-0d34-0410-b5e6-96231b3b80d8
* encode operand initializations (at fixed index)Gabor Greif2010-06-291-12/+8
| | | | | | | | | in terms of Op<> and ArgOffset. This works for values of {0, 1} for ArgOffset. Please note that ArgOffset will become 0 soon and will go away eventually. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107129 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove a pointless variable.Duncan Sands2010-06-291-5/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107128 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove initialized but otherwise unused variables.Duncan Sands2010-06-297-9/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107127 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove variables that are written by not read.Duncan Sands2010-06-291-6/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107126 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a more obvious way to avoid compiling functions which are only used when ↵Benjamin Kramer2010-06-291-3/+2
| | | | | | XDEBUG is enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107125 91177308-0d34-0410-b5e6-96231b3b80d8
* Jump through some silly hoops to make GCC accept that a function may not alwaysChandler Carruth2010-06-291-0/+3
| | | | | | | be called. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107124 91177308-0d34-0410-b5e6-96231b3b80d8
* PR7503: uxtb16 is not available for ARMv7-M. Patch by Brian G. Lucas.Evan Cheng2010-06-292-27/+70
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107122 91177308-0d34-0410-b5e6-96231b3b80d8
* Change if-cvt options to something that actually as useable.Evan Cheng2010-06-291-4/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107121 91177308-0d34-0410-b5e6-96231b3b80d8
* When processing loops for scheduling latencies (used for live outs on loopJim Grosbach2010-06-291-1/+4
| | | | | | | back-edges), make sure not to include dbg_value instructions in the count. Closing in on the end of rdar://7797940 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107119 91177308-0d34-0410-b5e6-96231b3b80d8
* Just as its not safe to blindly transfer the nsw bit from an addDan Gohman2010-06-291-5/+9
| | | | | | | | | instruction to an add scev, it's not safe to blindly transfer the inbounds flag from a gep instruction to an nsw on the scev for the gep. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107117 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactoring of arithmetic instruction classes with unary operatorBruno Cardoso Lopes2010-06-291-118/+60
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107116 91177308-0d34-0410-b5e6-96231b3b80d8
* When no memoperands are present, assume unaligned, volatile.Jakob Stoklund Olesen2010-06-291-10/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107114 91177308-0d34-0410-b5e6-96231b3b80d8
* Strip resulting binaries.Bill Wendling2010-06-291-0/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107112 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply my if-conversion cleanup from svn r106939 with fixes.Bob Wilson2010-06-292-35/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are 2 changes relative to the previous version of the patch: 1) For the "simple" if-conversion case, there's no need to worry about RemoveExtraEdges not handling an unanalyzable branch. Predicated terminators are ignored in this context, so RemoveExtraEdges does the right thing. This might break someday if we ever treat indirect branches (BRIND) as predicable, but for now, I just removed this part of the patch, because in the case where we do not add an unconditional branch, we rely on keeping the fall-through edge to CvtBBI (which is empty after this transformation). The change relative to the previous patch is: @@ -1036,10 +1036,6 @@ IterIfcvt = false; } - // RemoveExtraEdges won't work if the block has an unanalyzable branch, - // which is typically the case for IfConvertSimple, so explicitly remove - // CvtBBI as a successor. - BBI.BB->removeSuccessor(CvtBBI->BB); RemoveExtraEdges(BBI); // Update block info. BB can be iteratively if-converted. 2) My patch exposed a bug in the code for merging the tail of a "diamond", which had previously never been exercised. The code was simply checking that the tail had a single predecessor, but there was a case in MultiSource/Benchmarks/VersaBench/dbms where that single predecessor was neither edge of the diamond. I added the following change to check for that: @@ -1276,7 +1276,18 @@ // tail, add a unconditional branch to it. if (TailBB) { BBInfo TailBBI = BBAnalysis[TailBB->getNumber()]; - if (TailBB->pred_size() == 1 && !TailBBI.HasFallThrough) { + bool CanMergeTail = !TailBBI.HasFallThrough; + // There may still be a fall-through edge from BBI1 or BBI2 to TailBB; + // check if there are any other predecessors besides those. + unsigned NumPreds = TailBB->pred_size(); + if (NumPreds > 1) + CanMergeTail = false; + else if (NumPreds == 1 && CanMergeTail) { + MachineBasicBlock::pred_iterator PI = TailBB->pred_begin(); + if (*PI != BBI1->BB && *PI != BBI2->BB) + CanMergeTail = false; + } + if (CanMergeTail) { MergeBlocks(BBI, TailBBI); TailBBI.IsDone = true; } else { With these fixes, I was able to run all the SingleSource and MultiSource tests successfully. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107110 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an Intraprocedural form of BasicAliasAnalysis, which aims toDan Gohman2010-06-295-37/+173
| | | | | | | | properly handles instructions and arguments defined in different functions, or across recursive function iterations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107109 91177308-0d34-0410-b5e6-96231b3b80d8
* Described the missing AVX forms of SSE2 convert instructionsBruno Cardoso Lopes2010-06-293-51/+303
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107108 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix Thumb encoding of VMOV (scalar to ARM core register). The encoding isBob Wilson2010-06-291-1/+1
| | | | | | | the same as ARM except that the condition code field is always set to ARMCC::AL. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107107 91177308-0d34-0410-b5e6-96231b3b80d8
* The comment string does not match for all targets. PowerPC uses ;.Devang Patel2010-06-291-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107103 91177308-0d34-0410-b5e6-96231b3b80d8
* Unlike other targets, ARM now uses BUILD_VECTORs post-legalization so theyBob Wilson2010-06-282-1/+12
| | | | | | | | can't be changed arbitrarily by the DAGCombiner without checking if it is running after legalization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107097 91177308-0d34-0410-b5e6-96231b3b80d8
* Refix XTARGET. Previous attempt matches on powerpc-apple-darwin,Dale Johannesen2010-06-281-1/+1
| | | | | | | | although I don't see why. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107090 91177308-0d34-0410-b5e6-96231b3b80d8
* Attempt to fix XTARGET.Dale Johannesen2010-06-281-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107088 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the ARMCodeEmitter identify Thumb functions via ARMFunctionInfo insteadBob Wilson2010-06-281-5/+7
| | | | | | | of the Subtarget. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107086 91177308-0d34-0410-b5e6-96231b3b80d8
* Use DW_FORM_addr for DW_AT_entry_pc.Devang Patel2010-06-283-1/+51
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107085 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a blurb about -scev-aa.Dan Gohman2010-06-281-0/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107080 91177308-0d34-0410-b5e6-96231b3b80d8
* In asm's, output operands with matching input constraintsDale Johannesen2010-06-284-5/+21
| | | | | | | | | | have to be registers, per gcc documentation. This affects the logic for determining what "g" should lower to. PR 7393. A couple of existing testcases are affected. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107079 91177308-0d34-0410-b5e6-96231b3b80d8
* Added the darwin .secure_log_unique and .secure_log_reset directives.Kevin Enderby2010-06-284-0/+96
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107077 91177308-0d34-0410-b5e6-96231b3b80d8
* Constant fold x == undef to undef.Dan Gohman2010-06-282-1/+31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107074 91177308-0d34-0410-b5e6-96231b3b80d8
* tidy up style. no functional change.Jim Grosbach2010-06-281-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107073 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix Value::stripPointerCasts and BasicAA to avoid trouble onDan Gohman2010-06-283-10/+54
| | | | | | | | code in unreachable blocks, which have have use-def cycles. This fixes PR7514. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107071 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor encoding function for NEON 1-register with modified immediate format.Bob Wilson2010-06-281-5/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107070 91177308-0d34-0410-b5e6-96231b3b80d8
* Support Thumb mode encoding of NEON instructions.Bob Wilson2010-06-281-0/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107068 91177308-0d34-0410-b5e6-96231b3b80d8
* Reduce indentation via early exit. NFC.Bill Wendling2010-06-281-100/+110
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* Include inlined function in list of processed subprograms.Devang Patel2010-06-281-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107065 91177308-0d34-0410-b5e6-96231b3b80d8
* new, no longer brain-dead, r106907Jim Grosbach2010-06-281-2/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107060 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove this weak test.Devang Patel2010-06-281-16/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107059 91177308-0d34-0410-b5e6-96231b3b80d8
* Testcase for llvm-gcc fix 107051.Dale Johannesen2010-06-281-0/+21
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* Don't write temporary files in test directoryJakob Stoklund Olesen2010-06-281-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107049 91177308-0d34-0410-b5e6-96231b3b80d8
* After physreg coalescing, physical registers might not have live ranges whereJakob Stoklund Olesen2010-06-281-1/+2
| | | | | | | | | | you would expect. Don't assert on that case, just give up. This fixes PR7513. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107046 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a triple so test runs on Linux as well.Jakob Stoklund Olesen2010-06-281-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107045 91177308-0d34-0410-b5e6-96231b3b80d8
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