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2012-09-19Prevent inlining of callees which allocate lots of memory into a recursive ↵Nadav Rotem
caller. Example: void foo() { ... foo(); // I'm recursive! bar(); } bar() { int a[1000]; // large stack size } rdar://10853263 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164207 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-19CodeGenPrep: turn lookup tables into switches for some targets.Hans Wennborg
This is a follow-up from r163302, which added a transformation to SimplifyCFG that turns some switches into loads from lookup tables. It was pointed out that some targets, such as GPUs and deeply embedded targets, might not find this appropriate, but SimplifyCFG doesn't have enough information about the target to decide this. This patch adds the reverse transformation to CodeGenPrep: it turns loads from lookup tables back into switches for targets where we do not build jump tables (assuming these are also the targets where lookup tables are inappropriate). Hopefully we will eventually get to have target information in SimplifyCFG, and then this CodeGenPrep transformation can be removed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164206 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-19Remove code for setting the VEX L-bit as a function of operand size from the ↵Craig Topper
code emitters and the disassembler table builder. Fix a couple instructions that were still missing VEX_L. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164204 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-19whitespace.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164203 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-19Add explicit VEX_L tags to all 256-bit instructions. This will allow us to ↵Craig Topper
remove code from the code emitters that examined operands to set the L-bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164202 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-19De-nest if's and fix mix-upSean Silva
Two deeply nested if's obscured that the sense of the conditions was mixed up. Amazingly, TableGen's output is exactly the same even with the sense of the tests fixed; it seems that all of TableGen's conversions are symmetric so that the inverted sense was nonetheless correct "by accident". As such, I couldn't come up with a test case. If there does in fact exist a non-symmetric conversion in TableGen's type system, then a test case should be prepared. Despite the symmetry, both if's are left in place for robustness in the face of future changes. Review by Jakob. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164195 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Tidy up. Minor formatting.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164182 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Tidy up. 80 columns.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164181 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18comment typoAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164180 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Fix the last crasher I've gotten a reproduction for in SROA. This oneChandler Carruth
from the dragonegg build bots when we turned on the full version of the pass. Included a much reduced test case for this pesky bug, despite bugpoint's uncooperative behavior. Also, I audited all the similar code I could find and didn't spot any other cases where this mistake cropped up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164178 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18New utility for expanding integer division for targets that don't support it.Michael Ilseman
Implementation derived from compiler-rt's implementation of signed and unsigned integer division. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164173 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18MOVi16 (movw) is only legal on cpus with V6T2 support. rdar://12300648Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164169 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Fix the isLocalCall() by checking for linker weakness as well.Roman Divacky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164155 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18TargetSchedule: cleanup computeOperandLatency logic & diagnostics.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164154 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18misched: Make ScheduleDAGInstrs use the TargetSchedule interface.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164153 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Revert r164051.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164150 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18LSR critical edge splitting fix for PR13756.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164147 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Fix getCommonType in a different way from the way I fixed it whenChandler Carruth
working on FCA splitting. Instead of refusing to form a common type when there are uses of a subsection of the alloca as well as a use of the entire alloca, just skip the subsection uses and continue looking for a whole-alloca use with a type that we can use. This produces slightly prettier IR I think, and also fixes the other failure in the test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164146 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Fix build for compilers that don't understand injected class names properly.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164142 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Avoid symbol name clash when filling TOC.Roman Divacky
Patch by Adhemerval Zanella. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164141 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18SROA: Use CRTP for OpSplitter to get rid of virtual dispatch and the ↵Benjamin Kramer
virtual-dtor warnings that come with it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164140 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18On PPC64 emit the environment pointer. Patch by Adhemerval Zanella.Roman Divacky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164139 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Optimize local func calls to not emit nop for TOC restoration.Roman Divacky
Patch by Adhemerval Zanella. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164138 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18SROA: Replace the member function template contraption for recursively ↵Benjamin Kramer
splitting aggregates into a real class. No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164135 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18When creating MCAsmBackend pass the CPU string as well. In X86AsmBackendRoman Divacky
store this and use it to not emit long nops when the CPU is geode which doesnt support them. Fixes PR11212. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164132 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18SROA.cpp: Appease msvc.NAKAMURA Takumi
...I don't know why this could appease msvc...baad. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164130 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18LNT builders have picked up new SROA, disable it to get the remaining ↵Benjamin Kramer
builders green again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164124 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Fix a warning in release builds and a test case I forgot to update withChandler Carruth
a fix to getCommonType in the previous patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164120 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Add a major missing piece to the new SROA pass: aggressive splitting ofChandler Carruth
FCAs. This is essential in order to promote allocas that are used in struct returns by frontends like Clang. The FCA load would block the rest of the pass from firing, resulting is significant regressions with the bullet benchmark in the nightly test suite. Thanks to Duncan for repeated discussions about how best to do this, and to both him and Benjamin for review. This appears to have blocked many places where the pass tries to fire, and so I'm expect somewhat different results with this fix added. As with the last big patch, I'm including a change to enable the SROA by default *temporarily*. Ben is going to remove this as soon as the LNT bots pick up the patch. I'm just trying to get a round of LNT numbers from the stable machines in the lab. NOTE: Four clang tests are expected to fail in the brief window where this is enabled. Sorry for the noise! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164119 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Fix instcombine to obey requested alignment when merging allocas.Richard Osborne
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164117 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18More domain conversion; convert VFP VMOVS to NEON instructions in more cases ↵James Molloy
- when we may clobber the other S-lane by converting an S to a D instruction, make an effort to work out if the S lane is clobberable or not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164114 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Replaced ReInitMCSubtargetInfo with InitMCProcessor.Andrew Trick
Now where we used to call ReInitMCSubtargetInfo, we actually recompute the same information as InitMCSubtargetInfo instead of only setting the feature bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164105 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18TargetSchedModel API. Implement latency lookup, disabled.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164098 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18TableGen subtarget emitter. Initialize MCSubtargetInfo with the new machine ↵Andrew Trick
model. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164092 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Mark unimplemented copy constructors and copy assignment operators as ↵Craig Topper
LLVM_DELETED_FUNCTION. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164090 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Use vld1 / vst2 for unaligned v2f64 load / store. e.g. Use vld1.16 for 2-byteEvan Cheng
aligned address. Based on patch by David Peixotto. Also use vld1.64 / vst1.64 with 128-bit alignment to take advantage of alignment hints. rdar://12090772, rdar://12238782 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164089 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18Fix some funky indentation.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164087 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-18PGO: preserve branch-weight metadata when simplifying Switch to a sub, an icmpManman Ren
and a conditional branch; also when removing dead cases from a switch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164084 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-17PGO: preserve branch-weight metadata when simplifying SwitchManman Ren
Hanlde the case when we split the default edge if the default target has "icmp" and unconditinal branch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164076 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-17Merge into undefined lanes under -new-coalescer.Jakob Stoklund Olesen
Add LIS::pruneValue() and extendToIndices(). These two functions are used by the register coalescer when merging two live ranges requires more than a trivial value mapping as supported by LiveInterval::join(). The pruneValue() function can remove the part of a value number that is going to conflict in join(). Afterwards, extendToIndices can restore the live range, using any new dominating value numbers and updating the SSA form. Use this complex value mapping to support merging a register into a vector lane that has a conflicting value, but the clobbered lane is undef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164074 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-17Stop adding <imp-def> operands when expanding REG_SEQUENCE.Jakob Stoklund Olesen
These extra operands are not needed by register allocators using VirtRegRewriter, and RAFast don't need them any longer. By omitting the <imp-def> operands, it becomes possible for the new register coalescer to track which lanes are valid and which are undef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164073 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-17Revert r164061-r164067. Most of the new subtarget emitter.Andrew Trick
I have to work out the Target/CodeGen header dependencies before putting this back. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164072 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-17PGO: preserve branch-weight metadata when simplifying SwitchOnSelect.Manman Ren
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164068 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-17InitMCProcessorAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164066 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-17TargetSchedModel API. Implement latency lookup, disabled.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164065 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-17TableGen subtarget emitter. Initialize MCSubtargetInfo with the new machine ↵Andrew Trick
model. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164061 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-17Add some cases to x86 OptimizeCompare to handle DEC and INC, too.Jan Wen Voung
While we are setting the earlier def to true, also make it live. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164056 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-17PGO: preserve branch-weight metadata when simplifying two branches with a commonManman Ren
destination in SimplifyCondBranchToCondBranch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164054 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-17Make sure there is enough room for RA. getStackSize needs to be cleaned up butAkira Hatanaka
we will do that when we implement the full save/restore. Patch by Reed Kotler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164051 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-17Increase the static sizes of some SmallSets. finalizeBundle() is very ↵Michael Ilseman
frequently called for some backends, and growing into an std::set is overkill for these numbers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164044 91177308-0d34-0410-b5e6-96231b3b80d8
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