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* Use MCPhysReg for RegisterClassInfo allocation orders.Jakob Stoklund Olesen2012-11-296-15/+17
| | | | | | This saves a bit of memory. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168852 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid rewriting instructions twice.Jakob Stoklund Olesen2012-11-291-0/+9
| | | | | | | | | This could cause miscompilations in targets where sub-register composition is not always idempotent (ARM). <rdar://problem/12758887> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168837 91177308-0d34-0410-b5e6-96231b3b80d8
* When combining consecutive stores allow loads in between the stores, if the ↵Nadav Rotem2012-11-291-3/+61
| | | | | | loads do not alias. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168832 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the LiveRegMatrix analysis available to targets.Jakob Stoklund Olesen2012-11-2820-564/+21
| | | | | | | | | | | No functional change, just moved header files. Targets can inject custom passes between register allocation and rewriting. This makes it possible to tweak the register allocation before rewriting, using the full global interference checking available from LiveRegMatrix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168806 91177308-0d34-0410-b5e6-96231b3b80d8
* misched: Analysis that partitions the DAG into subtrees.Andrew Trick2012-11-282-56/+222
| | | | | | | | | | | This is a simple, cheap infrastructure for analyzing the shape of a DAG. It recognizes uniform DAGs that take the shape of bottom-up subtrees, such as the included matrix multiplication example. This is useful for heuristics that balance register pressure with ILP. Two canonical expressions of the heuristic are implemented in scheduling modes: -misched-ilpmin and -misched-ilpmax. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168773 91177308-0d34-0410-b5e6-96231b3b80d8
* misched: rename ScheduleDAGILP to ScheduleDFS to prepare for other heuristics.Andrew Trick2012-11-282-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168772 91177308-0d34-0410-b5e6-96231b3b80d8
* misched: better alias analysis.Andrew Trick2012-11-281-2/+3
| | | | | | | | | | | | | This fixes a hole in the "cheap" alias analysis logic implemented within the DAG builder itself, regardless of whether proper alias analysis is enabled. It now handles this pattern produced by LSR+CodeGenPrepare. %sunkaddr1 = ptrtoint * %obj to i64 %sunkaddr2 = add i64 %sunkaddr1, %lsr.iv %sunkaddr3 = inttoptr i64 %sunkaddr2 to i32* store i32 %v, i32* %sunkaddr3 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168768 91177308-0d34-0410-b5e6-96231b3b80d8
* misched: Debug output fix. Use an always valid iterator.Andrew Trick2012-11-281-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168767 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the guts of TargetInstrInfoImpl into the TargetInstrInfo class.Jakob Stoklund Olesen2012-11-283-691/+659
| | | | | | | The *Impl class no longer serves a purpose now that the super-class implementation is in CodeGen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168759 91177308-0d34-0410-b5e6-96231b3b80d8
* Move Target{Instr,Register}Info.cpp into lib/CodeGen.Jakob Stoklund Olesen2012-11-283-0/+338
| | | | | | | | | | | | | | | | The Target library is not allowed to depend on the large CodeGen library, but the TRI and TII classes provide abstract interfaces that require both caller and callee to link to CodeGen. The implementation files for these classes provide default implementations of some of the hooks. These methods may need to reference CodeGen, so they belong in that library. We already have a number of methods implemented in the TargetInstrInfoImpl sub-class because of that. I will merge that class into the parent next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168758 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r168630, r168631, and r168633 as these are causing nightly test failures.Chad Rosier2012-11-284-2/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168751 91177308-0d34-0410-b5e6-96231b3b80d8
* Attempt to make the comments for dwarf debug look more likeEric Christopher2012-11-272-274/+200
| | | | | | the coding standard would like. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168737 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply section moving, make sure string section is output last.Eric Christopher2012-11-271-24/+54
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168736 91177308-0d34-0410-b5e6-96231b3b80d8
* CSE: allow PerformTrivialCoalescing to check copies across basic blockManman Ren2012-11-271-2/+0
| | | | | | | | | | | | | | | | | boundaries. Given the following case: BB0 %vreg1<def> = SUBrr %vreg0, %vreg7 %vreg2<def> = COPY %vreg7 BB1 %vreg10<def> = SUBrr %vreg0, %vreg2 We should be able to CSE between SUBrr in BB0 and SUBrr in BB1. rdar://12462006 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168717 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove duplicated #includes.Jakub Staszak2012-11-271-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168712 91177308-0d34-0410-b5e6-96231b3b80d8
* Never use .lcomm on platforms where it does not accept an alignmentUlrich Weigand2012-11-271-2/+7
| | | | | | | | | | | | argument. Instead, use a pair of .local and .comm directives. This avoids spurious differences between binaries built by the integrated assembler vs. those built by the external assembler, since the external assembler may impose alignment requirements on .lcomm symbols where the integrated assembler does not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168704 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert rearrangement of debug info sections to unblock the botsEric Christopher2012-11-271-59/+26
| | | | | | and O0 + debug codegen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168680 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unneeded #include.Jakub Staszak2012-11-271-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168670 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unneeded #include.Jakub Staszak2012-11-271-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168664 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm/CodeGen: Remove empty files in r168659.NAKAMURA Takumi2012-11-271-0/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168663 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused forward declaration.Jakub Staszak2012-11-271-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168660 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused MachineLoopRanges analysis.Jakub Staszak2012-11-274-149/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168659 91177308-0d34-0410-b5e6-96231b3b80d8
* Make comment names match function names.Eric Christopher2012-11-271-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168644 91177308-0d34-0410-b5e6-96231b3b80d8
* Add in sections for the fission case (no change so incorrect) andEric Christopher2012-11-271-1/+32
| | | | | | add a TODO for starting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168643 91177308-0d34-0410-b5e6-96231b3b80d8
* Reorder section output ordering.Eric Christopher2012-11-271-25/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168638 91177308-0d34-0410-b5e6-96231b3b80d8
* Whitespace cleanup.Eric Christopher2012-11-271-27/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168637 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an assertion to ensure freezeReservedRegs() is only ever called once.Chad Rosier2012-11-261-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168633 91177308-0d34-0410-b5e6-96231b3b80d8
* Now that the X86 Maximal Stack Alignment Check pass has been removed (i.e.,Chad Rosier2012-11-262-3/+0
| | | | | | | | | r168627), we no longer need to call the freezeReservedRegs() function a second time. Previously, this pass was conservatively adding the FP to the set of reserved registers, requiring the second update to the reserved registers. rdar://12719844 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168631 91177308-0d34-0410-b5e6-96231b3b80d8
* Now that the X86 Maximal Stack Alignment Check pass has been removed (i.e.,Chad Rosier2012-11-261-1/+0
| | | | | | | | | r168627), we no longer need to call the freezeReservedRegs() function a second time. Previously, this pass was conservatively adding the FP to the set of reserved registers, requiring the second update to the reserved registers. rdar://12719844 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168630 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use iterator after being erased.Jakub Staszak2012-11-261-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168622 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unneeded #includes.Jakub Staszak2012-11-261-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168608 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor to make helper method static.Craig Topper2012-11-252-29/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168557 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove duplicate check of LimitFloatPrecision. It was already checked ↵Craig Topper2012-11-251-1/+1
| | | | | | earlier before IsExp10 could be set to true. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168553 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor common code out of individual if blocks into common tail.Craig Topper2012-11-251-24/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168551 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove redundant calls to getCurDebugLoc in visitIntrinsicCall. It's already ↵Craig Topper2012-11-241-7/+4
| | | | | | called at the start of the function and captured in a local variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168548 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor a bit to make some helper methods static.Craig Topper2012-11-242-39/+20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168546 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor some common code out of individual if blocks.Craig Topper2012-11-241-52/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168538 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor a bit to make some helper functions static.Craig Topper2012-11-232-54/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168524 91177308-0d34-0410-b5e6-96231b3b80d8
* Cleanup: Simplify loop end logic in computeRegisterProperties().Patrik Hägglund2012-11-231-5/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168507 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix 80-col violationEli Bendersky2012-11-221-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168498 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm.fmuladd.* lowering should be checking isOperationLegalOrCustom, rather thanLang Hames2012-11-221-1/+1
| | | | | | | isOperationLegal. Thanks to Craig Topper for pointing this out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168485 91177308-0d34-0410-b5e6-96231b3b80d8
* Pull some code out into functions to make rearranging them a bit easier.Eric Christopher2012-11-222-46/+83
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168481 91177308-0d34-0410-b5e6-96231b3b80d8
* Whitespace.Eric Christopher2012-11-211-29/+29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168402 91177308-0d34-0410-b5e6-96231b3b80d8
* Update for some of the coding standard before rearranging functionsEric Christopher2012-11-213-53/+53
| | | | | | around. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168401 91177308-0d34-0410-b5e6-96231b3b80d8
* Update some comments.Eric Christopher2012-11-211-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168400 91177308-0d34-0410-b5e6-96231b3b80d8
* Update and add some comments.Eric Christopher2012-11-211-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168399 91177308-0d34-0410-b5e6-96231b3b80d8
* Whitespace.Eric Christopher2012-11-211-26/+26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168398 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove constness from this, it modifies the output stream as doesEric Christopher2012-11-202-2/+2
| | | | | | everything else underneath. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168395 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused function argument, add a bit to the comment.Eric Christopher2012-11-202-5/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168387 91177308-0d34-0410-b5e6-96231b3b80d8
* Formatting.Eric Christopher2012-11-201-10/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168384 91177308-0d34-0410-b5e6-96231b3b80d8
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