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* Just make the Dwarf timer group static inside of the getter function. No ↵Bill Wendling2009-03-101-7/+5
| | | | | | need to alloc/dealloc. llvm-svn: 66591
* Don't put static functions in anonymous namespace.Bill Wendling2009-03-101-4/+0
| | | | llvm-svn: 66589
* These should *stop* the timer, not start it again.Bill Wendling2009-03-101-2/+2
| | | | llvm-svn: 66586
* - Fix misspelled method name.Bill Wendling2009-03-101-11/+5
| | | | | | - Remove unused method. llvm-svn: 66585
* - Create GetOrCreateSourceID from getOrCreateSourceID. GetOrCreateSourceID isBill Wendling2009-03-101-79/+82
| | | | | | | | | | | the untimed version of getOrCreateSourceID. getOrCreateSourceID calls GetOrCreateSourceID, of course. - Move some methods into the "private" section. Constify at least one method. - General clean-ups. llvm-svn: 66582
* Refine the Dwarf writer timers so that they measure exception writing and debugBill Wendling2009-03-101-143/+169
| | | | | | writing individually. llvm-svn: 66577
* Revert 66358 for now. It's breaking povray, 450.soplex, and 456.hmmer on x86 ↵Evan Cheng2009-03-101-53/+2
| | | | | | / Darwin. llvm-svn: 66574
* Add a timer to the DwarfWriter pass that measures the total time it takes toBill Wendling2009-03-101-8/+110
| | | | | | emit exception and debug Dwarf info. llvm-svn: 66571
* Fix a post-RA scheduling liveness bug. When a basic block is beingDan Gohman2009-03-101-9/+22
| | | | | | | | | | | | | scheduled in multiple regions, liveness data used by the anti-dependence breaker is carried from one region to the next, however the information reflects the state of the instructions before scheduling. After scheduling, there may be new live range overlaps. Handle this by pessimizing the liveness data carried between regions to the point where it will be conservatively correct now matter how the earlier region is scheduled. This fixes a miscompilation in 176.gcc with the post-RA scheduler enabled. llvm-svn: 66558
* wire up support for emitting "special" values from inline asmChris Lattner2009-03-101-1/+20
| | | | | | format strings with the standard ${:foo} syntax. llvm-svn: 66527
* Fix PR3763 by using proper APInt methods instead of uint64_t's.Chris Lattner2009-03-091-3/+4
| | | | llvm-svn: 66434
* Yet another case where the spiller marked two uses of the same register on ↵Evan Cheng2009-03-091-19/+10
| | | | | | the same instruction as kill. This fixes PR3706. llvm-svn: 66428
* just remove the use_empty() check entirely, the only reason itChris Lattner2009-03-091-14/+8
| | | | | | | existed was for llvm-gcc 3.4 (which used the __main hack) which is really really long dead. llvm-svn: 66417
* Make the code generator rip of dead constant expr uses before decidingChris Lattner2009-03-091-10/+16
| | | | | | | | whether a global is dead or not. This should fix PR3749 - linker adds spurious use to appending globals. I can't reasonably add a testcase for this, because the bc writer/reader strip dead constant users. llvm-svn: 66404
* Pass in a std::string when getting the names of debugging things. This cuts downBill Wendling2009-03-095-35/+60
| | | | | | on the number of times a std::string is created and copied. llvm-svn: 66396
* If a MI uses the same register more than once, only mark one of them as 'kill'.Evan Cheng2009-03-081-6/+22
| | | | llvm-svn: 66363
* implement an optimization to codegen c ? 1.0 : 2.0 as load { 2.0, 1.0 } + c*4. Chris Lattner2009-03-081-2/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For 2009-03-07-FPConstSelect.ll we now produce: _f: xorl %eax, %eax testl %edi, %edi movl $4, %ecx cmovne %rax, %rcx leaq LCPI1_0(%rip), %rax movss (%rcx,%rax), %xmm0 ret previously we produced: _f: subl $4, %esp cmpl $0, 8(%esp) movss LCPI1_0, %xmm0 je LBB1_2 ## entry LBB1_1: ## entry movss LCPI1_1, %xmm0 LBB1_2: ## entry movss %xmm0, (%esp) flds (%esp) addl $4, %esp ret on PPC the code also improves to: _f: cntlzw r2, r3 srwi r2, r2, 5 li r3, lo16(LCPI1_0) slwi r2, r2, 2 addis r3, r3, ha16(LCPI1_0) lfsx f1, r3, r2 blr from: _f: li r2, lo16(LCPI1_1) cmplwi cr0, r3, 0 addis r2, r2, ha16(LCPI1_1) beq cr0, LBB1_2 ; entry LBB1_1: ; entry li r2, lo16(LCPI1_0) addis r2, r2, ha16(LCPI1_0) LBB1_2: ; entry lfs f1, 0(r2) blr This also improves the existing pic-cpool case from: foo: subl $12, %esp call .Lllvm$1.$piclabel .Lllvm$1.$piclabel: popl %eax addl $_GLOBAL_OFFSET_TABLE_ + [.-.Lllvm$1.$piclabel], %eax cmpl $0, 16(%esp) movsd .LCPI1_0@GOTOFF(%eax), %xmm0 je .LBB1_2 # entry .LBB1_1: # entry movsd .LCPI1_1@GOTOFF(%eax), %xmm0 .LBB1_2: # entry movsd %xmm0, (%esp) fldl (%esp) addl $12, %esp ret to: foo: call .Lllvm$1.$piclabel .Lllvm$1.$piclabel: popl %eax addl $_GLOBAL_OFFSET_TABLE_ + [.-.Lllvm$1.$piclabel], %eax xorl %ecx, %ecx cmpl $0, 4(%esp) movl $8, %edx cmovne %ecx, %edx fldl .LCPI1_0@GOTOFF(%eax,%edx) ret This triggers a few dozen times in spec FP 2000. llvm-svn: 66358
* random cleanups.Chris Lattner2009-03-081-4/+3
| | | | llvm-svn: 66357
* Introduce new linkage types linkonce_odr, weak_odr, common_odrDuncan Sands2009-03-076-17/+25
| | | | | | | | | | | | | | | | | | | | | and extern_weak_odr. These are the same as the non-odr versions, except that they indicate that the global will only be overridden by an *equivalent* global. In C, a function with weak linkage can be overridden by a function which behaves completely differently. This means that IP passes have to skip weak functions, since any deductions made from the function definition might be wrong, since the definition could be replaced by something completely different at link time. This is not allowed in C++, thanks to the ODR (One-Definition-Rule): if a function is replaced by another at link-time, then the new function must be the same as the original function. If a language knows that a function or other global can only be overridden by an equivalent global, it can give it the weak_odr linkage type, and the optimizers will understand that it is alright to make deductions based on the function body. The code generators on the other hand map weak and weak_odr linkage to the same thing. llvm-svn: 66339
* Fix ScheduleDAGRRList::CopyAndMoveSuccessors' handling of nodesDan Gohman2009-03-061-7/+7
| | | | | | | | | | | with multiple chain operands. This can occur when the scheduler has added chain operands to a node that already has a chain operand, in order to handle physical register dependencies. This fixes an llvm-gcc bootstrap failure on x86-64 introduced in r66058. llvm-svn: 66240
* When we split a basic block, there's a default branch to the newly created BB.Bill Wendling2009-03-061-0/+3
| | | | | | Delete this default branch, because we're going to generate our own. llvm-svn: 66234
* (Hopefully) silence a warning.Owen Anderson2009-03-051-1/+1
| | | | llvm-svn: 66158
* Be more careful about choosing restore points when doing restore folding. ↵Owen Anderson2009-03-051-5/+28
| | | | | | This fixes some subtle miscompilations. llvm-svn: 66147
* Fix how livein live intervals are handled. Previously it could end at MBB ↵Evan Cheng2009-03-051-4/+9
| | | | | | start. Sorry, no small test case possible. llvm-svn: 66129
* Fix BuildVectorSDNode::isConstantSplat to handle one-element vectors.Bob Wilson2009-03-041-2/+2
| | | | | | | It is an error to call APInt::zext with a size that is equal to the value's current size, so use zextOrTrunc instead. llvm-svn: 66039
* Add a restore folder, which shaves a dozen or so machineinstrs off oggenc. ↵Owen Anderson2009-03-041-6/+75
| | | | | | Update a testcase to check this. llvm-svn: 66029
* PR3686: make the legalizer handle bitcast from i80 to x86 long double.Eli Friedman2009-03-042-0/+8
| | | | llvm-svn: 66021
* Fix PR3701. 1. X86 target renamed eflags register to flags. This matches ↵Evan Cheng2009-03-041-25/+54
| | | | | | what llvm-gcc generates so codegen knows flags register is being clobbered by inline asm. 2. BURR scheduler should also check if inline asm nodes can clobber "live" physical registers. Previously it was only checking target nodes with implicit defs. llvm-svn: 65996
* The DAG combiner was performing a BT combine. The BT combine had a value of -1,Bill Wendling2009-03-041-11/+22
| | | | | | | | | | | | so it changed it into a 31 via the TLO.ShrinkDemandedConstant() call. Then it would go through the DAG combiner again. This time it had a value of 31, which was turned into a -1 by TLI.SimplifyDemandedBits(). This would ping pong forever. Teach the TLO.ShrinkDemandedConstant() call not to lower a value if the demanded value is an XOR of all ones. llvm-svn: 65985
* Generalize BuildVectorSDNode::isConstantSplat to use APInts and handleBob Wilson2009-03-021-78/+49
| | | | | | | | arbitrary vector sizes. Add an optional MinSplatBits parameter to specify a minimum for the splat element size. Update the PPC target to use the revised interface. llvm-svn: 65899
* Fix a problem with DAGCombine on 64b targets where foldingNate Begeman2009-03-011-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | extracts + build_vector into a shuffle would fail, because the type of the new build_vector would not be legal. Try harder to create a legal build_vector type. Note: this will be totally irrelevant once vector_shuffle no longer takes a build_vector for shuffle mask. New: _foo: xorps %xmm0, %xmm0 xorps %xmm1, %xmm1 subps %xmm1, %xmm1 mulps %xmm0, %xmm1 addps %xmm0, %xmm1 movaps %xmm1, 0 Old: _foo: xorps %xmm0, %xmm0 movss %xmm0, %xmm1 xorps %xmm2, %xmm2 unpcklps %xmm1, %xmm2 pshufd $80, %xmm1, %xmm1 unpcklps %xmm1, %xmm2 pslldq $16, %xmm2 pshufd $57, %xmm2, %xmm1 subps %xmm0, %xmm1 mulps %xmm0, %xmm1 addps %xmm0, %xmm1 movaps %xmm1, 0 llvm-svn: 65791
* Minor optimization:Evan Cheng2009-03-011-29/+237
| | | | | | | | | | | Look for situations like this: %reg1024<def> = MOV r1 %reg1025<def> = MOV r0 %reg1026<def> = ADD %reg1024, %reg1025 r0 = MOV %reg1026 Commute the ADD to hopefully eliminate an otherwise unavoidable copy. llvm-svn: 65752
* Combine PPC's GetConstantBuildVectorBits and isConstantSplat functions to a newBob Wilson2009-03-011-0/+91
| | | | | | method in a BuildVectorSDNode "pseudo-class". llvm-svn: 65747
* Last commit accidentially deleted this code.Evan Cheng2009-02-281-0/+4
| | | | llvm-svn: 65679
* It is possible that subprgoram definition is only encoding return value ↵Devang Patel2009-02-271-2/+6
| | | | | | directly, instsad of an DIArray of all argument types. llvm-svn: 65643
* Refactor TLS code and add some tests. The tests and expected results are:Rafael Espindola2009-02-271-0/+22
| | | | | | | | | | | | | | | | | | | | | pic | declaration | linkage | visibility | !pic | declaration | external | default | tls1.ll tls2.ll | local exec pic | declaration | external | default | tls1-pic.ll tls2-pic.ll | general dynamic !pic | !declaration | external | default | tls3.ll tls4.ll | initial exec pic | !declaration | external | default | tls3-pic.ll tls4-pic.ll | general dynamic !pic | declaration | external | hidden | tls7.ll tls8.ll | local exec pic | declaration | external | hidden | X | local dynamic !pic | !declaration | external | hidden | tls9.ll tls10.ll | local exec pic | !declaration | external | hidden | X | local dynamic !pic | declaration | internal | default | tls5.ll tls6.ll | local exec pic | declaration | internal | default | X | local dynamic The ones marked with an X have not been implemented since local dynamic is not implemented. llvm-svn: 65632
* MachineLICM CSE should match destination register classes; avoid hoisting ↵Evan Cheng2009-02-271-3/+13
| | | | | | implicit_def's. llvm-svn: 65592
* Enable stack slot coloring DCE. Evan's spiller fixes were needed before ↵Owen Anderson2009-02-261-7/+2
| | | | | | this could happen. llvm-svn: 65501
* The last commit was overly conservative. It's ok to reuse value that's ↵Evan Cheng2009-02-261-7/+0
| | | | | | already marked livein. llvm-svn: 65498
* If an available register falls through to a succ block, unset the last kill. ↵Evan Cheng2009-02-261-37/+76
| | | | | | Sorry, it's impossible to reduce a sensible test case. It basically requires the moon and stars to align in order to cause a failure. llvm-svn: 65497
* Revert BuildVectorSDNode related patches: 65426, 65427, and 65296.Evan Cheng2009-02-257-219/+104
| | | | llvm-svn: 65482
* Fix big-endian codegen bug. We're splitting upDale Johannesen2009-02-251-1/+2
| | | | | | | | | | | overly long ints, e.g. i96, into pieces at PHIs and the nodes that feed into them; however big-endian reverses the order of the pieces (for some reason), and wasn't doing it the same way on both sides, so the pieces didn't match and runtime failures ensued. Fixes 188.ammp and sqlite3 on ppc32. llvm-svn: 65481
* Print variable's display name in dwarf DIE.Devang Patel2009-02-251-1/+1
| | | | llvm-svn: 65468
* Clean up dwarf writer, part 1. This eliminated the horrible recursive ↵Evan Cheng2009-02-254-335/+414
| | | | | | | | getGlobalVariablesUsing and replaced it something readable. It eliminated use of slow UniqueVector and replaced it with StringMap, SmallVector, and DenseMap, etc. It also fixed some non-deterministic behavior. This is a very minor compile time win. llvm-svn: 65438
* Expand tabs to spaces (overlooked in previous commit)Scott Michel2009-02-251-12/+12
| | | | llvm-svn: 65427
* Remove all "cached" data from BuildVectorSDNode, preferring to retrieveScott Michel2009-02-251-13/+8
| | | | | | | | | results via reference parameters. This patch also appears to fix Evan's reported problem supplied as a reduced bugpoint test case. llvm-svn: 65426
* Overhaul my earlier submission due to feedback. It's a large patch, but most ofBill Wendling2009-02-243-4/+2
| | | | | | | | | | | | them are generic changes. - Use the "fast" flag that's already being passed into the asm printers instead of shoving it into the DwarfWriter. - Instead of calling "MI->getParent()->getParent()" for every MI, set the machine function when calling "runOnMachineFunction" in the asm printers. llvm-svn: 65379
* Add a debugging option for SSC DCE.Owen Anderson2009-02-241-0/+5
| | | | llvm-svn: 65375
* - Use the "Fast" flag instead of "OptimizeForSize" to determine whether to emitBill Wendling2009-02-244-14/+15
| | | | | | | | | | a DBG_LABEL or not. We want to fall back to the original way of emitting debug info when we're in -O0/-fast mode. - Add plumbing in to pass the "Fast" flag to places that need it. - XFAIL DebugInfo/deaddebuglabel.ll. This is finding 11 labels instead of 8. I need to investigate still. llvm-svn: 65367
* Fix a ValueTracking rule: RHS means operand 1, not 0. Add a simpleDan Gohman2009-02-241-1/+1
| | | | | | | ashr instcombine to help expose this code. And apply the fix to SelectionDAG's copy of this code too. llvm-svn: 65364
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