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* Reduce verbiage of lit.local.cfg filesAlp Toker2014-06-09
| | | | | | We can just split targets_to_build in one place and make it immutable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210496 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM & AArch64: make use of common cmpxchg idioms after expansionTim Northover2014-05-30
| | | | | | | | | | | | | | | | | | | | | | | | The C and C++ semantics for compare_exchange require it to return a bool indicating success. This gets mapped to LLVM IR which follows each cmpxchg with an icmp of the value loaded against the desired value. When lowered to ldxr/stxr loops, this extra comparison is redundant: its results are implicit in the control-flow of the function. This commit makes two changes: it replaces that icmp with appropriate PHI nodes, and then makes sure earlyCSE is called after expansion to actually make use of the opportunities revealed. I've also added -{arm,aarch64}-enable-atomic-tidy options, so that existing fragile tests aren't perturbed too much by the change. Many of them either rely on undef/unreachable too pervasively to be restored to something well-defined (particularly while making sure they test the same obscure assert from many years ago), or depend on a particular CFG shape, which is disrupted by SimplifyCFG. rdar://problem/16227836 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209883 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64/ARM64: move ARM64 into AArch64's placeTim Northover2014-05-24
| | | | | | | | | | | | | | | This commit starts with a "git mv ARM64 AArch64" and continues out from there, renaming the C++ classes, intrinsics, and other target-local objects for consistency. "ARM64" test directories are also moved, and tests that began their life in ARM64 use an arm64 triple, those from AArch64 use an aarch64 triple. Both should be equivalent though. This finishes the AArch64 merge, and everyone should feel free to continue committing as normal now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209577 91177308-0d34-0410-b5e6-96231b3b80d8
* [LSR] Add llc testcase for r207271/r207569.Adam Nemet2014-05-02
| | | | | | | See PR19608 for the details but to summarize it was easy to modify the .ll file to get the desired def-use ordering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207887 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r207271 for now. This commit introduced a test case that ranChandler Carruth2014-04-28
| | | | | | | | clang directly from the LLVM test suite! That doesn't work. I've followed up on the review thread to try and get a viable solution sorted out, but trying to get the tree clean here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207462 91177308-0d34-0410-b5e6-96231b3b80d8
* [LoopStrengthReduce] Don't trim formula that uses a subset of required registersAdam Nemet2014-04-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Consider this use from the new testcase: LSR Use: Kind=ICmpZero, Offsets={0}, widest fixup type: i32 reg({1000,+,-1}<nw><%for.body>) -3003 + reg({3,+,3}<nw><%for.body>) -1001 + reg({1,+,1}<nuw><nsw><%for.body>) -1000 + reg({0,+,1}<nw><%for.body>) -3000 + reg({0,+,3}<nuw><%for.body>) reg({-1000,+,1}<nw><%for.body>) reg({-3000,+,3}<nsw><%for.body>) This is the last use we consider for a solution in SolveRecurse, so CurRegs is a large set. (CurRegs is the set of registers that are needed by the previously visited uses in the in-progress solution.) ReqRegs is { {3,+,3}<nw><%for.body>, {1,+,1}<nuw><nsw><%for.body> } This is the intersection of the regs used by any of the formulas for the current use and CurRegs. Now, the code requires a formula to contain *all* these regs (the comment is simply wrong), otherwise the formula is immediately disqualified. Obviously, no formula for this use contains two regs so they will all get disqualified. The fix modifies the check to allow the formula in this case. The idea is that neither of these formulae is introducing any new registers which is the point of this early pruning as far as I understand. In terms of set arithmetic, we now allow formulas whose used regs are a subset of the required regs not just the other way around. There are few more loops in the test-suite that are now successfully LSRed. I have benchmarked those and found very minimal change. Fixes <rdar://problem/13965777> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207271 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert test to FileCheckMatt Arsenault2014-04-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207015 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the ability to use GEPs for address sinking in CGPHal Finkel2014-04-12
| | | | | | | | | | | | | | | | | | | | | | | | | | The current memory-instruction optimization logic in CGP, which sinks parts of the address computation that can be adsorbed by the addressing mode, does this by explicitly converting the relevant part of the address computation into IR-level integer operations (making use of ptrtoint and inttoptr). For most targets this is currently not a problem, but for targets wishing to make use of IR-level aliasing analysis during CodeGen, the use of ptrtoint/inttoptr is a problem for two reasons: 1. BasicAA becomes less powerful in the face of the ptrtoint/inttoptr 2. In cases where type-punning was used, and BasicAA was used to override TBAA, BasicAA may no longer do so. (this had forced us to disable all use of TBAA in CodeGen; something which we can now enable again) This (use of GEPs instead of ptrtoint/inttoptr) is not currently enabled by default (except for those targets that use AA during CodeGen), and so aside from some PowerPC subtargets and SystemZ, there should be no change in behavior. We may be able to switch completely away from the ptrtoint/inttoptr sinking on all targets, but further testing is required. I've doubled-up on a number of existing tests that are sensitive to the address sinking behavior (including some store-merging tests that are sensitive to the order of the resulting ADD operations at the SDAG level). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206092 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM: yet another round of ARM test clean upsSaleem Abdulrasool2014-04-03
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205586 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm/test/Transforms/LoopStrengthReduce/ARM64/lsr-*.ll: Add explicit triple ↵NAKAMURA Takumi2014-03-30
| | | | | | arm64-unknown for targeting pecoff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205125 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM64: initial backend importTim Northover2014-03-29
| | | | | | | | | | | | This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205090 91177308-0d34-0410-b5e6-96231b3b80d8
* This test need the X86 backend, move it to the X86 sub directory.Rafael Espindola2014-03-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203725 91177308-0d34-0410-b5e6-96231b3b80d8
* PR17473:Michael Zolotukhin2014-03-12
| | | | | | | | | Don't normalize an expression during postinc transformation unless it's invertible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203719 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR18165: LSR must avoid scaling factors that exceed the limit on ↵Andrew Trick2014-02-26
| | | | | | | | truncated use. Patch by Michael Zolotukhin! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202273 91177308-0d34-0410-b5e6-96231b3b80d8
* SCEVExpander: Try hard not to create derived induction variables in other loopsArnold Schwaighofer2014-02-16
| | | | | | | | | | | | | | | | | | | During LSR of one loop we can run into a situation where we have to expand the start of a recurrence of a loop induction variable in this loop. This start value is a value derived of the induction variable of a preceeding loop. SCEV has cannonicalized this value to a different recurrence than the recurrence of the preceeding loop's induction variable (the type and/or step direction) has changed). When we come to instantiate this SCEV we created a second induction variable in this preceeding loop. This patch tries to base such derived induction variables of the preceeding loop's induction variable. This helps twolf on arm and seems to help scimark2 on x86. Reapply with a fix for the case of a value derived from a pointer. radar://15970709 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201496 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "SCEVExpander: Try hard not to create derived induction variables in ↵Arnold Schwaighofer2014-02-15
| | | | | | | | other loops" This reverts commit r201465. It broke an arm bot. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201466 91177308-0d34-0410-b5e6-96231b3b80d8
* SCEVExpander: Try hard not to create derived induction variables in other loopsArnold Schwaighofer2014-02-15
| | | | | | | | | | | | | | | | | During LSR of one loop we can run into a situation where we have to expand the start of a recurrence of a loop induction variable in this loop. This start value is a value derived of the induction variable of a preceeding loop. SCEV has cannonicalized this value to a different recurrence than the recurrence of the preceeding loop's induction variable (the type and/or step direction) has changed). When we come to instantiate this SCEV we created a second induction variable in this preceeding loop. This patch tries to base such derived induction variables of the preceeding loop's induction variable. This helps twolf on arm and seems to help scimark2 on x86. radar://15970709 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201465 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix broken CHECK lines.Benjamin Kramer2014-01-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199016 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix "existant" typosAlp Toker2013-10-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193579 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix SCEVExpander: don't try to expand quadratic recurrences outside a loop.Andrew Trick2013-10-25
| | | | | | | | | | | | Partial fix for PR17459: wrong code at -O3 on x86_64-linux-gnu (affecting trunk and 3.3) When SCEV expands a recurrence outside of a loop it attempts to scale by the stride of the recurrence. Chained recurrences don't work that way. We could compute binomial coefficients, but would hve to guarantee that the chained AddRec's are in a perfectly reduced form. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193438 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix LSR: don't normalize quadratic recurrences.Andrew Trick2013-10-25
| | | | | | | | | | Partial fix for PR17459: wrong code at -O3 on x86_64-linux-gnu (affecting trunk and 3.3) ScalarEvolutionNormalization was attempting to normalize by adding and subtracting strides. Chained recurrences don't work that way. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193437 91177308-0d34-0410-b5e6-96231b3b80d8
* SCEVExpander: Fix a regression I introduced by to eagerly adding RAII objects.Benjamin Kramer2013-10-01
| | | | | | PR17425. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191741 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach loop-idiom about address space pointer sizesMatt Arsenault2013-09-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190491 91177308-0d34-0410-b5e6-96231b3b80d8
* [tests] Cleanup initialization of test suffixes.Daniel Dunbar2013-08-16
| | | | | | | | | | | | | | | | | - Instead of setting the suffixes in a bunch of places, just set one master list in the top-level config. We now only modify the suffix list in a few suites that have one particular unique suffix (.ml, .mc, .yaml, .td, .py). - Aside from removing the need for a bunch of lit.local.cfg files, this enables 4 tests that were inadvertently being skipped (one in Transforms/BranchFolding, a .s file each in DebugInfo/AArch64 and CodeGen/PowerPC, and one in CodeGen/SI which is now failing and has been XFAILED). - This commit also fixes a bunch of config files to use config.root instead of older copy-pasted code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188513 91177308-0d34-0410-b5e6-96231b3b80d8
* Allocate local registers in order for optimal coloring.Andrew Trick2013-07-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also avoid locals evicting locals just because they want a cheaper register. Problem: MI Sched knows exactly how many registers we have and assumes they can be colored. In cases where we have large blocks, usually from unrolled loops, greedy coloring fails. This is a source of "regressions" from the MI Scheduler on x86. I noticed this issue on x86 where we have long chains of two-address defs in the same live range. It's easy to see this in matrix multiplication benchmarks like IRSmk and even the unit test misched-matmul.ll. A fundamental difference between the LLVM register allocator and conventional graph coloring is that in our model a live range can't discover its neighbors, it can only verify its neighbors. That's why we initially went for greedy coloring and added eviction to deal with the hard cases. However, for singly defined and two-address live ranges, we can optimally color without visiting neighbors simply by processing the live ranges in instruction order. Other beneficial side effects: It is much easier to understand and debug regalloc for large blocks when the live ranges are allocated in order. Yes, global allocation is still very confusing, but it's nice to be able to comprehend what happened locally. Heuristics could be added to bias register assignment based on instruction locality (think late register pairing, banks...). Intuituvely this will make some test cases that are on the threshold of register pressure more stable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187139 91177308-0d34-0410-b5e6-96231b3b80d8
* Catch more CHECK that can be converted to CHECK-LABEL in Transforms for ↵Stephen Lin2013-07-14
| | | | | | | | | | | | | | | | | | | | | | | easier debugging. No functionality change. This conversion was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)define\([^@]*\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3define\4@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186269 91177308-0d34-0410-b5e6-96231b3b80d8
* Update Transforms tests to use CHECK-LABEL for easier debugging. No ↵Stephen Lin2013-07-14
| | | | | | | | | | | | | | | | | | | | | | | functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
* LSR: Fix the parameters used to compute the scaling factor cost.Quentin Colombet2013-06-19
| | | | | | | | | | | | | | Prior to this change, the considered addressing modes may be invalid since the maximum and minimum offsets were not taking into account. This was causing an assertion failure. The added test case exercices that behavior. <rdar://problem/14199725> Assertion failed: (CurScaleCost >= 0 && "Legal addressing mode has an illegal cost!") git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184341 91177308-0d34-0410-b5e6-96231b3b80d8
* Modify how the formulae are rated in Loop Strength Reduce.Quentin Colombet2013-05-31
| | | | | | | | | | | | | | | Namely, check if the target allows to fold more that one register in the addressing mode and if yes, adjust the cost accordingly. Prior to this commit, reg1 + scale * reg2 accesses were artificially preferred to reg1 + reg2 accesses. Indeed, the cost model wrongly assumed that reg1 + reg2 needs a temporary register for the computation, whereas it was correctly estimated for reg1 + scale * reg2. <rdar://problem/13973908> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183021 91177308-0d34-0410-b5e6-96231b3b80d8
* Track IR ordering of SelectionDAG nodes 3/4.Andrew Trick2013-05-25
| | | | | | | Remove the old IR ordering mechanism and switch to new one. Fix unit test failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182704 91177308-0d34-0410-b5e6-96231b3b80d8
* TBAA: remove !tbaa from testing cases if not used.Manman Ren2013-05-02
| | | | | | | | This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180935 91177308-0d34-0410-b5e6-96231b3b80d8
* TBAA: remove !tbaa from testing cases if not used.Manman Ren2013-04-30
| | | | | | | | This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180796 91177308-0d34-0410-b5e6-96231b3b80d8
* LSR IVChain improvement.Andrew Trick2013-02-09
| | | | | | | | | Handle chains in which the same offset is used for both loads and stores to the same array. Fixes rdar://11410078. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174789 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove target triple from an LSR test.Andrew Trick2013-01-22
| | | | | | Manish already fixed this test to work with NoTTI. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173110 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove triple from this test, it makes it fail when X86 TTI is missing.Benjamin Kramer2013-01-16
| | | | | | Without a triple opt falls back to NoTTI which comes closer to LSR's pre-TTI behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172609 91177308-0d34-0410-b5e6-96231b3b80d8
* Pattern-matched variables in post-inc-icmpzero.llRenato Golin2013-01-15
| | | | | | | | | | | Test was failing for clang-native-arm-cortex-a9 build-bot configuration. The reason for the failure was the test was using hardcoded names. The attached patch fixes this failure by replacing the hard-coded variables names with pattern-matched variable names. Patch by Manish Verma, ARM git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172534 91177308-0d34-0410-b5e6-96231b3b80d8
* SCEVExpander fix. RAUW needs to update the InsertedExpressions cache.Andrew Trick2013-01-14
| | | | | | | | Note that this bug is only exposed because LTO fails to use TTI. Fixes self-LTO of clang. rdar://13007381. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172462 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch the SCEV expander and LoopStrengthReduce to useChandler Carruth2013-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TargetTransformInfo rather than TargetLowering, removing one of the primary instances of the layering violation of Transforms depending directly on Target. This is a really big deal because LSR used to be a "special" pass that could only be tested fully using llc and by looking at the full output of it. It also couldn't run with any other loop passes because it had to be created by the backend. No longer is this true. LSR is now just a normal pass and we should probably lift the creation of LSR out of lib/CodeGen/Passes.cpp and into the PassManagerBuilder. =] I've not done this, or updated all of the tests to use opt and a triple, because I suspect someone more familiar with LSR would do a better job. This change should be essentially without functional impact for normal compilations, and only change behvaior of targetless compilations. The conversion required changing all of the LSR code to refer to the TTI interfaces, which fortunately are very similar to TargetLowering's interfaces. However, it also allowed us to *always* expect to have some implementation around. I've pushed that simplification through the pass, and leveraged it to simplify code somewhat. It required some test updates for one of two things: either we used to skip some checks altogether but now we get the default "no" answer for them, or we used to have no information about the target and now we do have some. I've also started the process of removing AddrMode, as the TTI interface doesn't use it any longer. In some cases this simplifies code, and in others it adds some complexity, but I think it's not a bad tradeoff even there. Subsequent patches will try to clean this up even further and use other (more appropriate) abstractions. Yet again, almost all of the formatting changes brought to you by clang-format. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171735 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a crash in LSR replaceCongruentIVs.Andrew Trick2013-01-06
| | | | | | | Indirect branch in the preheader crashes replaceCongruentIVs. Fixes rdar://12910141. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171653 91177308-0d34-0410-b5e6-96231b3b80d8
* Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ↵Dmitri Gribenko2012-12-30
| | | | | | | | | ModuleID This is done to avoid odd test failures, like the one fixed in r171243. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171250 91177308-0d34-0410-b5e6-96231b3b80d8
* Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ↵Dmitri Gribenko2012-12-30
| | | | | | | | | ModuleID This is done to avoid odd test failures, like the one fixed in r171243. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171246 91177308-0d34-0410-b5e6-96231b3b80d8
* LSR critical edge splitting fix for PR13756.Andrew Trick2012-09-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164147 91177308-0d34-0410-b5e6-96231b3b80d8
* During the CodeGenPrepare we often lower intrinsics (such as objsize)Nadav Rotem2012-08-14
| | | | | | | | | | | | | and allow some optimizations to turn conditional branches into unconditional. This commit adds a simple control-flow optimization which merges two consecutive basic blocks which are connected by a single edge. This allows the codegen to operate on larger basic blocks. rdar://11973998 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161852 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a much more conservative strategy for aligning branch targets.Chandler Carruth2012-08-07
| | | | | | | | | | | | | Previously, MBP essentially aligned every branch target it could. This bloats code quite a bit, especially non-looping code which has no real reason to prefer aligned branch targets so heavily. As Andy said in review, it's still a bit odd to do this without a real cost model, but this at least has much more plausible heuristics. Fixes PR13265. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161409 91177308-0d34-0410-b5e6-96231b3b80d8
* Added unit test for PR13361: LSR + SCEV "hangs" on reasonably sized test.Andrew Trick2012-07-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160439 91177308-0d34-0410-b5e6-96231b3b80d8
* LSR Fix: check SCEV expression safety before expansion.Andrew Trick2012-07-13
| | | | | | | | | | All SCEV expressions used by LSR formulae must be safe to expand. i.e. they may not contain UDiv unless we can prove nonzero denominator. Fixes PR11356: LSR hoists UDiv. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160205 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the remaining TCL-style quotes found in the testsuite. This isChandler Carruth2012-07-02
| | | | | | | | | | | | | | | | | another mechanical change accomplished though the power of terrible Perl scripts. I have manually switched some "s to 's to make escaping simpler. While I started this to fix tests that aren't run in all configurations, the massive number of tests is due to a really frustrating fragility of our testing infrastructure: things like 'grep -v', 'not grep', and 'expected failures' can mask broken tests all too easily. Essentially, I'm deeply disturbed that I can change the testsuite so radically without causing any change in results for most platforms. =/ git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159547 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert all tests using TCL-style quoting to use shell-style quoting.Chandler Carruth2012-07-02
| | | | | | | | | | | | | | | | | | | | | | | | This was done through the aid of a terrible Perl creation. I will not paste any of the horrors here. Suffice to say, it require multiple staged rounds of replacements, state carried between, and a few nested-construct-parsing hacks that I'm not proud of. It happens, by luck, to be able to deal with all the TCL-quoting patterns in evidence in the LLVM test suite. If anyone is maintaining large out-of-tree test trees, feel free to poke me and I'll send you the steps I used to convert things, as well as answer any painful questions etc. IRC works best for this type of thing I find. Once converted, switch the LLVM lit config to use ShTests the same as Clang. In addition to being able to delete large amounts of Python code from 'lit', this will also simplify the entire test suite and some of lit's architecture. Finally, the test suite runs 33% faster on Linux now. ;] For my 16-hardware-thread (2x 4-core xeon e5520): 36s -> 24s git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159525 91177308-0d34-0410-b5e6-96231b3b80d8
* Unit test for LSR kind=Special fix: r158536.Andrew Trick2012-06-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158570 91177308-0d34-0410-b5e6-96231b3b80d8
* LSR fix: add a missing phi check during IV hoisting.Andrew Trick2012-05-22
| | | | | | Fixes PR12898: SCEVExpander crash. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157263 91177308-0d34-0410-b5e6-96231b3b80d8
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