aboutsummaryrefslogtreecommitdiffstats
path: root/lib/CodeGen
Commit message (Collapse)AuthorAgeFilesLines
* A REG_SEQUENCE instruction may use the same register twice.Jakob Stoklund Olesen2010-08-091-1/+11
| | | | | | | | | If we are emitting COPY instructions for the REG_SEQUENCE, make sure the kill flag goes on the last COPY. Otherwise we may be using a killed register. <rdar://problem/8287792> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110589 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename a method.Devang Patel2010-08-091-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110586 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the "isCompare" machine instruction attribute instead of calling theBill Wendling2010-08-081-5/+5
| | | | | | | | | | relatively expensive comparison analyzer on each instruction. Also rename the comparison analyzer method to something more in line with what it actually does. This pass is will eventually be folded into the Machine CSE pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110539 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy some #includes and forward-declarations, and move the C binding codeDan Gohman2010-08-071-0/+1
| | | | | | | out of PassManager.cpp and into Core.cpp with the rest of the C binding code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110494 91177308-0d34-0410-b5e6-96231b3b80d8
* Lazily defer duplicating the live interval we are splitting until we know it isJakob Stoklund Olesen2010-08-063-53/+70
| | | | | | | | | | necessary. Sometimes, live range splitting doesn't shrink the current interval, but simply changes some instructions to use a new interval. That makes the original more suitable for spilling. In this case, we don't need to duplicate the original. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110481 91177308-0d34-0410-b5e6-96231b3b80d8
* Cleanup comment wordingJim Grosbach2010-08-061-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110466 91177308-0d34-0410-b5e6-96231b3b80d8
* Keep the MachiuneFunctionPass pointer around. It is useful for verification.Jakob Stoklund Olesen2010-08-061-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110464 91177308-0d34-0410-b5e6-96231b3b80d8
* Add LiveInterval::RenumberValues - Garbage collection for VNInfos.Jakob Stoklund Olesen2010-08-062-1/+18
| | | | | | | After heavy editing of a live interval, it is much easier to simply renumber the live values instead of trying to keep track of the unused ones. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110463 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply r110396, with fixes to appease the Linux buildbot gods.Owen Anderson2010-08-0643-58/+58
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110460 91177308-0d34-0410-b5e6-96231b3b80d8
* Add more verification of LiveIntervals.Jakob Stoklund Olesen2010-08-061-4/+58
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110454 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix swapped COPY operands.Jakob Stoklund Olesen2010-08-061-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110453 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't try to verify LiveIntervals for physical registers.Jakob Stoklund Olesen2010-08-061-8/+4
| | | | | | | | | When a physical register is in use, some alias of that register has a live interval with a relevant live range. That is the sad state of intervals after physreg coalescing of subregs, and it is good enough for correct register allocation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110452 91177308-0d34-0410-b5e6-96231b3b80d8
* Update CMake build.Ted Kremenek2010-08-061-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110429 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the Optimize Compares pass (disabled by default).Bill Wendling2010-08-062-0/+113
| | | | | | | | | | | | | | | | | This pass tries to remove comparison instructions when possible. For instance, if you have this code: sub r1, 1 cmp r1, 0 bz L1 and "sub" either sets the same flag as the "cmp" instruction or could be converted to set the same flag, then we can eliminate the "cmp" instruction all together. This is a important for ARM where the ALU instructions could set the CPSR flag, but need a special suffix ('s') to do so. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110423 91177308-0d34-0410-b5e6-96231b3b80d8
* While emitting DBG_VALUE for registers spilled at the end of a block do not ↵Devang Patel2010-08-061-1/+8
| | | | | | use location of MBB->end(). If a block does not have terminator then incoming iterator points to end(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110411 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r110396 to fix buildbots.Owen Anderson2010-08-0642-57/+57
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110410 91177308-0d34-0410-b5e6-96231b3b80d8
* Be more aggressive about removing joined physreg copies.Jakob Stoklund Olesen2010-08-051-3/+10
| | | | | | | When a joined COPY changes subreg liveness, we keep it around as a KILL, otherwise it is safe to delete. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110403 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't verify LiveVariables if LiveIntervals is available.Jakob Stoklund Olesen2010-08-051-12/+13
| | | | | | | | LiveVariables becomes horribly wrong while the coalescer is running, but the analysis is not zapped until after the coalescer pass has run. This causes tons of false reports when calling verify form the coalescer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110402 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use PassInfo* as a type identifier for passes. Instead, use the ↵Owen Anderson2010-08-0542-57/+57
| | | | | | | | | address of the static ID member as the sole unique type identifier. Clean up APIs related to this change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110396 91177308-0d34-0410-b5e6-96231b3b80d8
* Add basic verification of LiveIntervals.Jakob Stoklund Olesen2010-08-051-0/+59
| | | | | | | | | | | | | | We verify that the LiveInterval is live at uses and defs, and that all instructions have a SlotIndex. Stuff we don't check yet: - Is the LiveInterval minimal? - Do all defs correspond to instructions or phis? - Do all defs dominate all their live ranges? - Are all live ranges continually reachable from their def? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110386 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove double-def checking from MachineVerifier, so a register does not have toJakob Stoklund Olesen2010-08-052-89/+18
| | | | | | | | | | be killed before being redefined. These checks are usually disabled, and usually fail when enabled. We de facto allow live registers to be redefined without a kill, the corresponding assertions in RegScavenger were removed long ago. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110362 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid using a live std::multimap iterator while editing the map. It looks likeJakob Stoklund Olesen2010-08-051-7/+13
| | | | | | | we sometimes compare singular iterators, reported by ENABLE_EXPENSIVE_CHECKS. This fixes PR7825. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110355 91177308-0d34-0410-b5e6-96231b3b80d8
* The lower invoke pass needs to have unreachable code elimination run after itBill Wendling2010-08-041-2/+4
| | | | | | | because it could create such things. This fixes a MingW buildbot test failure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110279 91177308-0d34-0410-b5e6-96231b3b80d8
* Coalesce stack slot accesses that arise when spilling both sides of a COPY.Jakob Stoklund Olesen2010-08-041-0/+23
| | | | | | | | | This helps avoid silly code: %R0<def = LOAD <fi#5> STORE <fi#5>, %R0<kill> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110266 91177308-0d34-0410-b5e6-96231b3b80d8
* Checkpoint SplitKit progress.Jakob Stoklund Olesen2010-08-043-86/+223
| | | | | | | We are now at a point where we can split around simple single-entry, single-exit loops, although still with some bugs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110257 91177308-0d34-0410-b5e6-96231b3b80d8
* Use location entry only of the location described by DBG_VALUE is valid.Devang Patel2010-08-041-3/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110255 91177308-0d34-0410-b5e6-96231b3b80d8
* The EH prepare passes really want to be the last passes run before code-gen.Bill Wendling2010-08-041-5/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110248 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo in comment.Devang Patel2010-08-041-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110244 91177308-0d34-0410-b5e6-96231b3b80d8
* Change this llvm_unreachable to report_fatal_error, since it canDan Gohman2010-08-041-4/+11
| | | | | | | be triggered by valid, if dubious, IR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110240 91177308-0d34-0410-b5e6-96231b3b80d8
* While spilling live registers at the end of block check whether they are ↵Devang Patel2010-08-041-1/+24
| | | | | | used by DBG_VALUE machine instructions or not. If a spilled register is used by DBG_VALUE machine instruction then insert a new DBG_VALUE machine instruction to encode variable's new location on stack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110235 91177308-0d34-0410-b5e6-96231b3b80d8
* If a variable is spilled by code generator then use DW_OP_fbreg to describe ↵Devang Patel2010-08-041-10/+35
| | | | | | its location on stack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110234 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate unnecessary empty string literals.Dan Gohman2010-08-041-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110183 91177308-0d34-0410-b5e6-96231b3b80d8
* Oops. Don't normalize spill weights twice.Jakob Stoklund Olesen2010-08-031-1/+0
| | | | | | | | | When the normalizeSpillWeights function was introduced, I forgot to remove this normalization. This change could affect register allocation. Hopefully for the better. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110119 91177308-0d34-0410-b5e6-96231b3b80d8
* Early exit and reduce indentation. No functionality change.Bill Wendling2010-08-021-105/+106
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110069 91177308-0d34-0410-b5e6-96231b3b80d8
* Free DbgScope created for dead functions.Devang Patel2010-08-021-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110045 91177308-0d34-0410-b5e6-96231b3b80d8
* Prefix `next' iterator operation with `llvm::'.Oscar Fuentes2010-08-023-7/+7
| | | | | | | | | Fixes potential ambiguity problems on VS 2010. Patch by nobled! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110029 91177308-0d34-0410-b5e6-96231b3b80d8
* PR7586: Make sure we don't claim that unknown bits are actually known in theEli Friedman2010-08-021-3/+2
| | | | | | | | ISD::AND case of TargetLowering::SimplifyDemandedBits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110019 91177308-0d34-0410-b5e6-96231b3b80d8
* Reference the personalities. Don't copy them into a new vector.Bill Wendling2010-08-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109966 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix for bug reported by Evzen Muller on llvm-commits: make sure to correctlyEli Friedman2010-07-301-6/+3
| | | | | | | | | check the range of the constant when optimizing a comparison between a constant and a sign_extend_inreg node. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109854 91177308-0d34-0410-b5e6-96231b3b80d8
* Plug the remaining MC leaks by giving MCObjectStreamer/MCAsmStreamer ↵Benjamin Kramer2010-07-291-4/+0
| | | | | | ownership of the TargetAsmBackend and the MCCodeEmitter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109767 91177308-0d34-0410-b5e6-96231b3b80d8
* Comment typo.Dale Johannesen2010-07-291-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109765 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in the -regalloc=fast handling of exotic two-address instruction withJakob Stoklund Olesen2010-07-291-3/+11
| | | | | | | | | | | | | | | | | multiple defs, like t2LDRSB_POST. The first def could accidentally steal the physreg that the second, tied def was required to be allocated to. Now, the tied use-def is treated more like an early clobber, and the physreg is reserved before allocating the other defs. This would never be a problem when the tied def was the only def which is the usual case. This fixes MallocBench/gs for thumb2 -O0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109715 91177308-0d34-0410-b5e6-96231b3b80d8
* Print out the regclass of any virtual registers used by a machine instruction.Jakob Stoklund Olesen2010-07-281-0/+31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109608 91177308-0d34-0410-b5e6-96231b3b80d8
* It is FE's responsibility to emit proper directory name.Devang Patel2010-07-271-4/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109538 91177308-0d34-0410-b5e6-96231b3b80d8
* GrammarJim Grosbach2010-07-271-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109525 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a crash in the dag combiner caused by ↵Nate Begeman2010-07-271-2/+10
| | | | | | | | | ConstantFoldBIT_CONVERTofBUILD_VECTOR calling itself recursively and returning a SCALAR_TO_VECTOR node, but assuming the input was always a BUILD_VECTOR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109519 91177308-0d34-0410-b5e6-96231b3b80d8
* 80 columnJim Grosbach2010-07-271-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109513 91177308-0d34-0410-b5e6-96231b3b80d8
* fix typoJim Grosbach2010-07-271-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109511 91177308-0d34-0410-b5e6-96231b3b80d8
* It's better to have the arrays, which would trigger the creation of stackBill Wendling2010-07-273-3/+33
| | | | | | | | | | protectors, to be near the stack protectors on the stack. Accomplish this by tagging the stack object with a predicate that indicates that it would trigger this. In the prolog-epilog inserter, assign these objects to the stack after the stack protector but before the other objects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109481 91177308-0d34-0410-b5e6-96231b3b80d8
* Add SplitEditor to SplitKit. This class will be used to edit live intervals andJakob Stoklund Olesen2010-07-264-10/+305
| | | | | | | | rewrite instructions for live range splitting. Still work in progress. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109469 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.1 at 2025-10-21 14:59:44 +0000