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2008-08-05Remove the need for -disable-correct-folding from this test.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54354 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05Fix the AsmWriter to not print extra spaces after parameter attributes.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54351 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-05Fix PR2568: Fix bug that cause redudant kill marker after its live interval ↵Evan Cheng
has been extended due to coalescing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54346 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-04Update these tests to work by disabling the new correct CFG generation. ↵Owen Anderson
This flag should ONLY be used to for tests like these. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54334 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-04PR2621: Improvements to the SCEV AddRec binomial expansion. This Eli Friedman
version uses a new algorithm for evaluating the binomial coefficients which is significantly more efficient for AddRecs of more than 2 terms (see the comments in the code for details on how the algorithm works). It also fixes some bugs: it removes the arbitrary length restriction for AddRecs, it fixes the silent generation of incorrect code for AddRecs which require a wide calculation width, and it fixes an issue where we were incorrectly truncating the iteration count too far when evaluating an AddRec expression narrower than the induction variable. There are still a few related issues I know of: I think there's still an issue with the SCEVExpander expansion of AddRec in terms of the width of the induction variable used. The hack to avoid generating too-wide integers shouldn't be necessary; instead, the callers should be considering the cost of the expansion before expanding it (in addition to not expanding too-wide integers, we might not want to expand expressions that are really expensive, especially when optimizing for size; calculating an length-17 32-bit AddRec currently generates about 250 instructions of straight-line code on X86). Also, for long 32-bit AddRecs on X86, CodeGen really sucks at scheduling the code. I'm planning on filing follow-up PRs for these issues. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54332 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-04Fix SDISel lowering of PHI nodes to use ComputeValueVTs.Dan Gohman
This allows it to work correctly on aggregate values. This fixes PR2623. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54331 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-04Fix SDISel lowering of zeroinitializer and undef to use ComputeValueVTs.Dan Gohman
This allows it to work correctly on nested aggregate values. This fixes PR2625. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54330 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-31Make sse2 explicit, for non-x86 hosts.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54251 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-31Improve dagcombining for sext-loads and sext-in-reg nodes.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54239 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-30Don't look for leaf values to store when lowering stores ofDan Gohman
empty structs. This fixes PR2612. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54226 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-30I missed this file in r54223. movzbl is now used insteadDan Gohman
of movzbw here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54224 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-30Reapply r54147 with a constraint to only use the 8-bitDan Gohman
subreg form on x86-64, to avoid the problem with x86-32 having GPRs that don't have 8-bit subregs. Also, change several 16-bit instructions to use equivalent 32-bit instructions. These have a smaller encoding and avoid partial-register updates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54223 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-30Added support for overloading intrinsics (atomics) based on pointersMon P Wang
to different address spaces. This alters the naming scheme for those intrinsics, e.g., atomic.load.add.i32 => atomic.load.add.i32.p0i32 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54195 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-30Another SCEV issue from PR2607; essentially the same issue, but this Eli Friedman
time applying to the implicit comparison in smin expressions. The correct way to transform an inequality into the opposite inequality, either signed or unsigned, is with a not expression. I looked through the SCEV code, and I don't think there are any more occurrences of this issue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54194 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-30Fix for PR2607: SCEV miscomputing the loop count for loops with an Eli Friedman
SGT exit condition. Essentially, the correct way to flip an inequality in 2's complement is the not operator, not the negation operator. That said, the difference only affects cases involving INT_MIN. Also, enhance the pre-test search logic to be a bit smarter about inequalities flipped with a not operator, so it can eliminate the smax from the iteration count for simple loops. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54184 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-29Fix PR2609. If a label is deleted, then it needsDuncan Sands
to be marked invalid regardless of whether it is a debug, an exception handling or (hopefully) a GC label. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54172 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-29Add vector shifts to the IR, patch by Eli Friedman.Nate Begeman
CodeGen & Clang work coming next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54161 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-29Add -unroll-allow-partial command line option that enabled the loop unroller toMatthijs Kooijman
partially unroll a loop when fully unrolling would not fit under the threshold. Patch by Mikael Lepistö. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54160 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-29Restructure ArgumentPromotion a bit. Instead of just having a single booleanMatthijs Kooijman
that says "unconditional loads from this argument are safe", we now keep track of the safety per set of indices from which loads happen. This prevents ArgPromotion from promoting loads that aren't really valid. As an added effect, this will now disregard the the type of the indices passed to a GEP, so "load GEP %A, i32 1" and "load GEP %A, i64 1" will result in a single argument, not two. This fixes PR2598, for which a testcase has been added as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54159 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-29Revert 54147.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54148 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-28Add x86 isel patterns to match what would be a ZERO_EXTEND_INREG operation,Dan Gohman
which is represented in codegen as an 'and' operation. This matches them with movz instructions, instead of leaving them to be matched by and instructions with an immediate field. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54147 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-28Test this differently: I saw this test failDuncan Sands
because opt exited while llvm-as was still writing to the pipe, causing it to get a SIGPIPE. It seems best to change things to avoid the race altogether. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54138 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-28Fix a bashism in TestRunner.sh.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54134 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-28Add support for eliminating stores that store the same value that was just ↵Owen Anderson
loaded. This fixes PR2599. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54133 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-27Fix embedded CRLF characters.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54125 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Fix test RUN lineNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54040 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Disable mov{L, LP, HP, HLP, *DUP} shuffles for mmxNate Begeman
mmx needs its own fancy shuffle logic based on unpack; for now we get correct but awful code. Also commit Mon Ping's VSETCC patch git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54039 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25This test needs -aggressive-remat enabled.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54015 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Teach ARM isLegalAddressingMode to handle unknown type without crashing. ↵Evan Cheng
This fixes pr2589. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54004 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Enable rematerialization of constants using ↵Dan Gohman
AliasAnalysis::pointsToConstantMemory, and knowledge of PseudoSourceValues. This unfortunately isn't sufficient to allow constants to be rematerialized in PIC mode -- the extra indirection is a complication. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54000 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-24Put the LICM of constant GlobalVariables, introduced in r53945, under aDan Gohman
command-line option, and disable it by default. It introduced performance regressions because CodeGen is currently not able to remat such loads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53997 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-24Add target triples so these tests behave as expected on non-darwin hosts.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53991 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-24Fix a catastrophic PPC64 ABI bug: i32 operands which are passed in memory ↵Evan Cheng
(all of the parameter registers are used) are loaded from sp offsets that were off by 4. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53979 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-24New test case.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53971 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23"Allow LICM to sink or lift loads from constant memory. Also add a testChris Lattner
case for this. This allows instructions like loads from global variables declared to be constant to be moved out of loops." Patch by Stefanus Du Toit! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53945 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23Enable first-class aggregates support.Dan Gohman
Remove the GetResultInst instruction. It is still accepted in LLVM assembly and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove support for return instructions with multiple values. These are auto-upgraded to use InsertValueInst instructions. The IRBuilder still accepts multiple-value returns, and auto-upgrades them to InsertValueInst instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53941 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23Fix PR2485: do all 4-element SSE shuffles in max. of 2 shuffle instructions.Evan Cheng
Based on patch by Nicolas Capens. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53939 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-22LegalizeTypes support for VSETCC. Fixes PR2575.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53938 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-22Fix pr2566: incorrect assumption about bit_convert. It doesn't not have to ↵Evan Cheng
output a vector value. Patch by Nicolas Capens! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53932 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-22Fix PR2574: implement v2f32 scalar_to_vector.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53927 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-21Add the PR number to the test.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53880 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-21Fix a bug in LSR's dead-PHI cleanup. If a PHI has a def-use chain thatDan Gohman
leads into a cycle involving a different PHI, LSR got stuck running around that cycle looking for the original PHI. To avoid this, keep track of visited PHIs and stop searching if we see one more than once. This fixes PR2570. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53879 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-20Fix PR2088. Use modulo linear equation solver to compute loop iterationWojciech Matyjewicz
count. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53810 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-20Fix for first part of PR2562. Generate the "pinsrw" instruction for insertsBill Wendling
into v4i16 vectors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53807 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-19XFAIL this test.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53793 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-19While testing particular algorithms to compute loop iteration count the bruteWojciech Matyjewicz
force evaluation (ComputeIterationCountExhaustively) should be turned off. It doesn't apply to trip-count2.ll because this file tests the brute force evaluation. The test for PR2364 (2008-05-25-NegativeStepToZero.ll) currently fails showing that the patch for this bug doesn't work. I'll fix it in a few hours with a patch for PR2088. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53792 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-19Testcase for PR2549Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53785 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-18Softfloat support for FDIV. Patch by Duncan Sands
Richard Pennington. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53773 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-18In the CBackend, use casts to force integer add, subtract, andDan Gohman
multiply to be done as unsigned, so that they have well defined behavior on overflow. This fixes PR2408. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53767 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-17Subreg live interval valno may not have a corresponding def machineinstr ↵Evan Cheng
since it's less precise. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53734 91177308-0d34-0410-b5e6-96231b3b80d8
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