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* Handle attribute(used) global variables that are i8.Chris Lattner2008-01-161-14/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46090 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not mark EH tables no-dead-strip unless theDale Johannesen2008-01-162-13/+40
| | | | | | | | associated function is so marked. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46088 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a ppc long double regression I introduced yesterday due to aChris Lattner2008-01-161-0/+1
| | | | | | | simplification. This fixes automotive-basicmath on PPC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46072 91177308-0d34-0410-b5e6-96231b3b80d8
* merge a few pieces of code that do the store/load to stack Chris Lattner2008-01-161-30/+12
| | | | | | | pattern to use EmitStackConvert now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46066 91177308-0d34-0410-b5e6-96231b3b80d8
* rename ExpandBIT_CONVERT to EmitStackConvert, generalizing Chris Lattner2008-01-161-15/+37
| | | | | | | it to allow it to emit different load and store kinds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46065 91177308-0d34-0410-b5e6-96231b3b80d8
* simplify a bunch of code by using SelectionDAG::CreateStackTemporary Chris Lattner2008-01-161-28/+6
| | | | | | | instead of inlining its body. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46062 91177308-0d34-0410-b5e6-96231b3b80d8
* Change legalizeop of FP_ROUND and FP_EXTEND to not fall throughChris Lattner2008-01-161-32/+55
| | | | | | | | | | into the ANY_EXTEND/ZERO_EXTEND/SIGN_EXTEND code to simplify it. Unmerge the code for FP_ROUND and FP_EXTEND from each other to make each one simpler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46061 91177308-0d34-0410-b5e6-96231b3b80d8
* make it more clear that this predicate only applies to scalar FP types.Chris Lattner2008-01-162-10/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46058 91177308-0d34-0410-b5e6-96231b3b80d8
* introduce a isTypeInSSEReg predicate, which allows us to simplifyChris Lattner2008-01-162-21/+18
| | | | | | | some code. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46055 91177308-0d34-0410-b5e6-96231b3b80d8
* My previous commit had an incomplete message, it should have been:Chris Lattner2008-01-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | make the 'fp return in ST(0)' optimization smart enough to look through token factor nodes. THis allows us to compile testcases like CodeGen/X86/fp-stack-retcopy.ll into: _carg: subl $12, %esp call L_foo$stub fstpl (%esp) fldl (%esp) addl $12, %esp ret instead of: _carg: subl $28, %esp call L_foo$stub fstpl 16(%esp) movsd 16(%esp), %xmm0 movsd %xmm0, 8(%esp) fldl 8(%esp) addl $28, %esp ret Still not optimal, but much better and this is a trivial patch. Fixing the rest requires invasive surgery that is is not llvm 2.2 material. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46054 91177308-0d34-0410-b5e6-96231b3b80d8
* make the 'fp return in ST(0)' optimization smart enough to Chris Lattner2008-01-161-1/+1
| | | | | | | look through token factor git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46053 91177308-0d34-0410-b5e6-96231b3b80d8
* various whitespace cleanups, no functionality change.Chris Lattner2008-01-161-7/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46052 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor the ReachesChainWithoutSideEffects out of dag combiner into Chris Lattner2008-01-162-28/+32
| | | | | | | | a public SDOperand::reachesChainWithoutSideEffects method. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46050 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not strip llvm.used values.Devang Patel2008-01-161-3/+25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46045 91177308-0d34-0410-b5e6-96231b3b80d8
* Missed file from previous checkin.Dale Johannesen2008-01-151-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46030 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix and enable EH for x86-64 Darwin. AddsDale Johannesen2008-01-154-13/+26
| | | | | | | | | | | ShortenEHDataFor64Bits as a not-very-accurate abstraction to cover all the changes in DwarfWriter. Some cosmetic changes to Darwin assembly code for gcc testsuite compatibility. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46029 91177308-0d34-0410-b5e6-96231b3b80d8
* Move some calls to getVRegDef higher in the callgraph, so they don't get ↵Owen Anderson2008-01-151-11/+11
| | | | | | executed as frequently in performance sensitive code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46027 91177308-0d34-0410-b5e6-96231b3b80d8
* improve compatibility with mingw, patch by Alain FrischChris Lattner2008-01-151-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46026 91177308-0d34-0410-b5e6-96231b3b80d8
* If someone wants to implement ppc TRAP, they can go for it :)Chris Lattner2008-01-151-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46019 91177308-0d34-0410-b5e6-96231b3b80d8
* The type of the 'abort' node should be pointer type (becauseChris Lattner2008-01-151-1/+2
| | | | | | | | it's a function pointer) not MVT::Other. This fixes builtin_trap lowering on ppc, alpha, ia64 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46018 91177308-0d34-0410-b5e6-96231b3b80d8
* rename SDTRet -> SDTNone.Chris Lattner2008-01-157-13/+11
| | | | | | | Move definition of 'trap' sdnode up from x86 instrinfo to targetselectiondag.td. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46017 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove DefInst from LiveVariables::VarInfo. Use the facilities on ↵Owen Anderson2008-01-154-38/+20
| | | | | | MachineRegisterInfo instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46016 91177308-0d34-0410-b5e6-96231b3b80d8
* no need to expand ISD::TRAP to X86ISD::TRAP, just match ISD::TRAP.Chris Lattner2008-01-153-17/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46015 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for targets that have a legal ISD::TRAP.Chris Lattner2008-01-152-4/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46014 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix JIT encoding of trap/ud2 instructionAnton Korobeynikov2008-01-151-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46012 91177308-0d34-0410-b5e6-96231b3b80d8
* Reformatted. It was confusing the other way. No functionality change.Bill Wendling2008-01-151-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46009 91177308-0d34-0410-b5e6-96231b3b80d8
* Oops. Forgot to commit this.Evan Cheng2008-01-151-5/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46002 91177308-0d34-0410-b5e6-96231b3b80d8
* For PR1839: add initial support for __builtin_trap. llvm-gcc part is missedAnton Korobeynikov2008-01-156-2/+49
| | | | | | | as well as PPC codegen git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46001 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename CCIfStruct to CCIfByVal and CCStructAssign to CCPassByVal. Remove ↵Evan Cheng2008-01-152-10/+11
| | | | | | unused parameters of CCStructAssign and add size and alignment requirement info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45997 91177308-0d34-0410-b5e6-96231b3b80d8
* Both x86-32 and x86-64 handle byval parameter attributes.Evan Cheng2008-01-151-4/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45996 91177308-0d34-0410-b5e6-96231b3b80d8
* ByVal stack slot alignment should be at least as large as pointer ABI alignment.Evan Cheng2008-01-151-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45995 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify CallInst::hasByValArgument using a new method.Duncan Sands2008-01-141-4/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45974 91177308-0d34-0410-b5e6-96231b3b80d8
* I noticed that the trampoline straightening transformation couldDuncan Sands2008-01-142-21/+35
| | | | | | | | | | drop attributes on varargs call arguments. Also, it could generate invalid IR if the transformed call already had the 'nest' attribute somewhere (this can never happen for code coming from llvm-gcc, but it's a theoretical possibility). Fix both problems. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45973 91177308-0d34-0410-b5e6-96231b3b80d8
* don't create the post-ra scheduler unless it is enabled.Chris Lattner2008-01-142-17/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45972 91177308-0d34-0410-b5e6-96231b3b80d8
* remove dead #includeChris Lattner2008-01-141-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45971 91177308-0d34-0410-b5e6-96231b3b80d8
* Improve the FP stackifier to decide all on its own whether Chris Lattner2008-01-141-23/+30
| | | | | | | | | | | an instruction kills a register or not. This is cheap and easy to do now that instructions record this on their flags, and this eliminates the second pass of LiveVariables from the x86 backend. This speeds up a release llc by ~2.5%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45955 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify code.Evan Cheng2008-01-141-4/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45950 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the miscompilation of MiBench/consumer-lame that was exposed by Evan'sChris Lattner2008-01-141-59/+97
| | | | | | | | byval work. This miscompilation is due to the program indexing an array out of range and us doing a transformation that broke this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45949 91177308-0d34-0410-b5e6-96231b3b80d8
* The isNotSuitableForSRA property is now dead, don't compute it.Chris Lattner2008-01-141-45/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45948 91177308-0d34-0410-b5e6-96231b3b80d8
* Change SRAGlobal to not depend on isNotSuitableForSRA, which makes it very Chris Lattner2008-01-141-2/+75
| | | | | | | difficult to understand the invariants. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45947 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the 'shrink global to bool' optimization more self contained, and thus Chris Lattner2008-01-141-10/+25
| | | | | | | easier to show that its safe. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45946 91177308-0d34-0410-b5e6-96231b3b80d8
* Turn a memcpy from a double* into a load/store of double instead ofChris Lattner2008-01-141-9/+46
| | | | | | | | | | | a load/store of i64. The later prevents promotion/scalarrepl of the source and dest in many cases. This fixes the 300% performance regression of the byval stuff on stepanov_v1p2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45945 91177308-0d34-0410-b5e6-96231b3b80d8
* factor memcpy/memmove simplification out to its own SimplifyMemTransfer Chris Lattner2008-01-131-35/+42
| | | | | | | method, no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45944 91177308-0d34-0410-b5e6-96231b3b80d8
* simplify some code. If we can infer alignment for source and dest that are Chris Lattner2008-01-131-21/+22
| | | | | | | | greater than memcpy alignment, and if we lower to load/store, use the best alignment info we have. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45943 91177308-0d34-0410-b5e6-96231b3b80d8
* simplify some code by adding a InsertBitCastBefore method,Chris Lattner2008-01-131-30/+25
| | | | | | | make memmove->memcpy conversion a bit simpler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45942 91177308-0d34-0410-b5e6-96231b3b80d8
* Whitespace tweak.Duncan Sands2008-01-131-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45940 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the assumption that byval has been applied toDuncan Sands2008-01-131-12/+12
| | | | | | | a pointer to a struct. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45939 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow the byval attribute for pointers to any type withDuncan Sands2008-01-131-2/+2
| | | | | | | a size, not just structs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45938 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR1907, a nasty miscompilation because instcombine didn'tChris Lattner2008-01-131-2/+8
| | | | | | | | realize that ne & sgt was a signed comparison (it was only looking at whether the left compare was signed). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45937 91177308-0d34-0410-b5e6-96231b3b80d8
* Small simplification.Duncan Sands2008-01-131-4/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45932 91177308-0d34-0410-b5e6-96231b3b80d8
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