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* Fix a ppc long double regression I introduced yesterday due to aChris Lattner2008-01-161-0/+1
| | | | | | simplification. This fixes automotive-basicmath on PPC. llvm-svn: 46072
* merge a few pieces of code that do the store/load to stack Chris Lattner2008-01-161-30/+12
| | | | | | pattern to use EmitStackConvert now. llvm-svn: 46066
* rename ExpandBIT_CONVERT to EmitStackConvert, generalizing Chris Lattner2008-01-161-15/+37
| | | | | | it to allow it to emit different load and store kinds. llvm-svn: 46065
* simplify a bunch of code by using SelectionDAG::CreateStackTemporary Chris Lattner2008-01-161-28/+6
| | | | | | instead of inlining its body. llvm-svn: 46062
* 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. llvm-svn: 46061
* make it more clear that this predicate only applies to scalar FP types.Chris Lattner2008-01-162-10/+10
| | | | llvm-svn: 46058
* introduce a isTypeInSSEReg predicate, which allows us to simplifyChris Lattner2008-01-162-21/+18
| | | | | | some code. No functionality change. llvm-svn: 46055
* 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. llvm-svn: 46054
* make the 'fp return in ST(0)' optimization smart enough to Chris Lattner2008-01-161-1/+1
| | | | | | look through token factor llvm-svn: 46053
* various whitespace cleanups, no functionality change.Chris Lattner2008-01-161-7/+7
| | | | llvm-svn: 46052
* Factor the ReachesChainWithoutSideEffects out of dag combiner into Chris Lattner2008-01-162-28/+32
| | | | | | | a public SDOperand::reachesChainWithoutSideEffects method. No functionality change. llvm-svn: 46050
* Do not strip llvm.used values.Devang Patel2008-01-161-3/+25
| | | | llvm-svn: 46045
* Missed file from previous checkin.Dale Johannesen2008-01-151-0/+1
| | | | llvm-svn: 46030
* 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. llvm-svn: 46029
* 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. llvm-svn: 46027
* improve compatibility with mingw, patch by Alain FrischChris Lattner2008-01-151-1/+1
| | | | llvm-svn: 46026
* If someone wants to implement ppc TRAP, they can go for it :)Chris Lattner2008-01-151-0/+1
| | | | llvm-svn: 46019
* 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 llvm-svn: 46018
* rename SDTRet -> SDTNone.Chris Lattner2008-01-157-13/+11
| | | | | | Move definition of 'trap' sdnode up from x86 instrinfo to targetselectiondag.td. llvm-svn: 46017
* Remove DefInst from LiveVariables::VarInfo. Use the facilities on ↵Owen Anderson2008-01-154-38/+20
| | | | | | MachineRegisterInfo instead. llvm-svn: 46016
* no need to expand ISD::TRAP to X86ISD::TRAP, just match ISD::TRAP.Chris Lattner2008-01-153-17/+6
| | | | llvm-svn: 46015
* Add support for targets that have a legal ISD::TRAP.Chris Lattner2008-01-152-4/+12
| | | | llvm-svn: 46014
* Fix JIT encoding of trap/ud2 instructionAnton Korobeynikov2008-01-151-2/+1
| | | | llvm-svn: 46012
* Reformatted. It was confusing the other way. No functionality change.Bill Wendling2008-01-151-2/+3
| | | | llvm-svn: 46009
* Oops. Forgot to commit this.Evan Cheng2008-01-151-5/+12
| | | | llvm-svn: 46002
* For PR1839: add initial support for __builtin_trap. llvm-gcc part is missedAnton Korobeynikov2008-01-156-2/+49
| | | | | | as well as PPC codegen llvm-svn: 46001
* 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. llvm-svn: 45997
* Both x86-32 and x86-64 handle byval parameter attributes.Evan Cheng2008-01-151-4/+9
| | | | llvm-svn: 45996
* ByVal stack slot alignment should be at least as large as pointer ABI alignment.Evan Cheng2008-01-151-1/+3
| | | | llvm-svn: 45995
* Simplify CallInst::hasByValArgument using a new method.Duncan Sands2008-01-141-4/+1
| | | | llvm-svn: 45974
* 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. llvm-svn: 45973
* don't create the post-ra scheduler unless it is enabled.Chris Lattner2008-01-142-17/+8
| | | | llvm-svn: 45972
* remove dead #includeChris Lattner2008-01-141-1/+0
| | | | llvm-svn: 45971
* 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%. llvm-svn: 45955
* Simplify code.Evan Cheng2008-01-141-4/+1
| | | | llvm-svn: 45950
* 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. llvm-svn: 45949
* The isNotSuitableForSRA property is now dead, don't compute it.Chris Lattner2008-01-141-45/+1
| | | | llvm-svn: 45948
* Change SRAGlobal to not depend on isNotSuitableForSRA, which makes it very Chris Lattner2008-01-141-2/+75
| | | | | | difficult to understand the invariants. llvm-svn: 45947
* 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. llvm-svn: 45946
* 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. llvm-svn: 45945
* factor memcpy/memmove simplification out to its own SimplifyMemTransfer Chris Lattner2008-01-131-35/+42
| | | | | | method, no functionality change. llvm-svn: 45944
* 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. llvm-svn: 45943
* simplify some code by adding a InsertBitCastBefore method,Chris Lattner2008-01-131-30/+25
| | | | | | make memmove->memcpy conversion a bit simpler. llvm-svn: 45942
* Whitespace tweak.Duncan Sands2008-01-131-1/+1
| | | | llvm-svn: 45940
* Remove the assumption that byval has been applied toDuncan Sands2008-01-131-12/+12
| | | | | | a pointer to a struct. llvm-svn: 45939
* Allow the byval attribute for pointers to any type withDuncan Sands2008-01-131-2/+2
| | | | | | a size, not just structs. llvm-svn: 45938
* 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). llvm-svn: 45937
* Small simplification.Duncan Sands2008-01-131-4/+1
| | | | llvm-svn: 45932
* When turning a call to a bitcast function into a direct call,Duncan Sands2008-01-131-12/+17
| | | | | | | if this becomes a varargs call then deal correctly with any parameter attributes on the newly vararg call arguments. llvm-svn: 45931
* improve cygwin compatibility, patch by Sam BishopChris Lattner2008-01-121-1/+1
| | | | llvm-svn: 45917
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