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* Change instruction description to split OperandList into OutOperandList andEvan Cheng2007-07-191-2/+2
| | | | | | | | | | | | | | | | InOperandList. This gives one piece of important information: # of results produced by an instruction. An example of the change: def ADD32rr : I<0x01, MRMDestReg, (ops GR32:$dst, GR32:$src1, GR32:$src2), "add{l} {$src2, $dst|$dst, $src2}", [(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>; => def ADD32rr : I<0x01, MRMDestReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2), "add{l} {$src2, $dst|$dst, $src2}", [(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>; git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40033 91177308-0d34-0410-b5e6-96231b3b80d8
* Only adjust esp around calls in presence of alloca.Evan Cheng2007-07-191-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40030 91177308-0d34-0410-b5e6-96231b3b80d8
* Long live the exception handling!Anton Korobeynikov2007-07-141-2/+3
| | | | | | | | | | | | | | | | This patch fills the last necessary bits to enable exceptions handling in LLVM. Currently only on x86-32/linux. In fact, this patch adds necessary intrinsics (and their lowering) which represent really weird target-specific gcc builtins used inside unwinder. After corresponding llvm-gcc patch will land (easy) exceptions should be more or less workable. However, exceptions handling support should not be thought as 'finished': I expect many small and not so small glitches everywhere. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39855 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove clobbersPred. Add an OptionalDefOperand to instructions which have ↵Evan Cheng2007-07-101-5/+9
| | | | | | the 's' bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38501 91177308-0d34-0410-b5e6-96231b3b80d8
* Added ARM::CPSR to represent ARM CPSR status register.Evan Cheng2007-07-051-49/+59
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37894 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing const qualifiers.Evan Cheng2007-05-291-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37342 91177308-0d34-0410-b5e6-96231b3b80d8
* Add PredicateOperand to all ARM instructions that have the condition field.Evan Cheng2007-05-151-48/+77
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37066 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR1390 in a better way.Lauro Ramos Venancio2007-05-071-12/+41
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36916 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR1390.Lauro Ramos Venancio2007-05-051-38/+10
| | | | | | | Don't spill extra register to align the stack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36814 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug support for arm-linux.Lauro Ramos Venancio2007-05-031-0/+5
| | | | | | | Patch by Raul Herbster. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36690 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminateFrameIndex() change.Evan Cheng2007-05-011-3/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36626 91177308-0d34-0410-b5e6-96231b3b80d8
* Under normal circumstances, when a frame pointer is not required, we reserveEvan Cheng2007-05-011-3/+27
| | | | | | | | | | | | | argument space for call sites in the function immediately on entry to the current function. This eliminates the need for add/sub sp brackets around call sites. However, this is not always a good idea. If the "call frame" is large and the target load / store instructions have small immediate field to encode sp offset, this can cause poor codegen. In the worst case, this can make it impossible to scavenge a register if the reserved spill slot is pushed too far apart from sp / fp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36607 91177308-0d34-0410-b5e6-96231b3b80d8
* add parenthesis.Lauro Ramos Venancio2007-04-271-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36514 91177308-0d34-0410-b5e6-96231b3b80d8
* In Thumb mode, the frame register must be R7.Lauro Ramos Venancio2007-04-271-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36512 91177308-0d34-0410-b5e6-96231b3b80d8
* Match MachineFunction::UsedPhysRegs changes.Evan Cheng2007-04-251-9/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36452 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in getFrameRegister.Lauro Ramos Venancio2007-04-191-1/+4
| | | | | | | Reported by Raul Herbster. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36262 91177308-0d34-0410-b5e6-96231b3b80d8
* Removed tabs everywhere except autogenerated & external files. Add makeAnton Korobeynikov2007-04-161-1/+1
| | | | | | | target for tabs checking. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36146 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed a bug that causes codegen of noop like add r0, r0, #0.Evan Cheng2007-04-031-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35627 91177308-0d34-0410-b5e6-96231b3b80d8
* Added MRegisterInfo hook to re-materialize an instruction.Evan Cheng2007-03-201-16/+35
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35205 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix naming inconsistencies.Evan Cheng2007-03-191-17/+17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35163 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix one more Thumb eliminateFrameIndex bug.Evan Cheng2007-03-071-9/+23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34990 91177308-0d34-0410-b5e6-96231b3b80d8
* Register scavenging is now on by default for ARM.Evan Cheng2007-03-061-3/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34987 91177308-0d34-0410-b5e6-96231b3b80d8
* Scavenge a register using the register scavenger when needed.Evan Cheng2007-03-061-8/+107
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34966 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate unnecessary reset of SP in epilog on darwinDale Johannesen2007-03-021-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34824 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a spilled free callee-saved register as scratch register.Evan Cheng2007-03-011-3/+17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34785 91177308-0d34-0410-b5e6-96231b3b80d8
* - Track which callee-saved registers are spilled.Evan Cheng2007-03-011-10/+18
| | | | | | | - Some code clean up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34783 91177308-0d34-0410-b5e6-96231b3b80d8
* Doh. ARM::PC is obvious a reserved register.Evan Cheng2007-02-281-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34763 91177308-0d34-0410-b5e6-96231b3b80d8
* Make requiresRegisterScavenging determination on a per MachineFunction basis.Evan Cheng2007-02-281-2/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34711 91177308-0d34-0410-b5e6-96231b3b80d8
* Start making use of RegScavenger.Evan Cheng2007-02-281-8/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34708 91177308-0d34-0410-b5e6-96231b3b80d8
* Let MRegisterInfo now owns RegScavenger; eliminateFrameIndex must preserve ↵Evan Cheng2007-02-271-27/+43
| | | | | | register kill info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34692 91177308-0d34-0410-b5e6-96231b3b80d8
* bugfix: SP wasn't updated for varargs when frame pointer was eliminated.Lauro Ramos Venancio2007-02-231-63/+63
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34537 91177308-0d34-0410-b5e6-96231b3b80d8
* Add option to turn on register scavenger; By default, spills kills the ↵Evan Cheng2007-02-231-6/+18
| | | | | | register being stored. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34514 91177308-0d34-0410-b5e6-96231b3b80d8
* Support to provide exception and selector registers.Jim Laskey2007-02-211-0/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34482 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-apply my liveintervalanalysis changes. Now with PR1207 fixes.Evan Cheng2007-02-191-0/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34428 91177308-0d34-0410-b5e6-96231b3b80d8
* For PR1207:Reid Spencer2007-02-191-15/+0
| | | | | | | | Revert patches that caused the problem. Evan, please investigate and reapply when you've discovered the problem. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34399 91177308-0d34-0410-b5e6-96231b3b80d8
* Added getReservedRegs().Evan Cheng2007-02-171-0/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34376 91177308-0d34-0410-b5e6-96231b3b80d8
* isLowRegister() expects input is a physical register.Evan Cheng2007-02-071-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34013 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename.Evan Cheng2007-02-071-6/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34011 91177308-0d34-0410-b5e6-96231b3b80d8
* If sp offset will be materialized in a register. Clear the offset field of ↵Evan Cheng2007-02-071-8/+10
| | | | | | str / ldr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34010 91177308-0d34-0410-b5e6-96231b3b80d8
* Get rid of references to iostream.Evan Cheng2007-02-071-3/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34009 91177308-0d34-0410-b5e6-96231b3b80d8
* In thumb mode, R3 is reserved, but it can be live in to the function. IfEvan Cheng2007-02-071-5/+21
| | | | | | | | | that is the case, whenever we use it as a scratch register, save it to R12 first and then restore it after the use. This is a temporary and truly horrible workaround! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33999 91177308-0d34-0410-b5e6-96231b3b80d8
* - If fp (r7) is used to reference stack objects, use [r, r] address mode.Evan Cheng2007-02-071-28/+67
| | | | | | | | | - If there is a dynamic alloca, in the epilogue, restore the value of sp using r7 - offset. - Other bug fixes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33997 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminateFrameIndex() is even more complicated if frame ptr is used instead ↵Evan Cheng2007-02-071-20/+34
| | | | | | of SP when there are dynamic alloca's. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33975 91177308-0d34-0410-b5e6-96231b3b80d8
* Spill / restore should avoid modifying the condition register.Evan Cheng2007-02-071-34/+35
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33971 91177308-0d34-0410-b5e6-96231b3b80d8
* foldMemoryOperand() cannot fold tMOVrr sp into load / store in thumb mode. ↵Evan Cheng2007-02-061-13/+19
| | | | | | tLDRspi / tSTRspi cannot target / store high registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33958 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminateFrameIndex() bug when frame pointer is used as base register.Evan Cheng2007-02-061-23/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33945 91177308-0d34-0410-b5e6-96231b3b80d8
* bugfix: SP isn't resetted when function has FP and there is no spills.Lauro Ramos Venancio2007-02-021-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33800 91177308-0d34-0410-b5e6-96231b3b80d8
* Another thumb large stack offset codegen bug.Evan Cheng2007-02-021-5/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33795 91177308-0d34-0410-b5e6-96231b3b80d8
* Ugh. Only meant to do this in thumb mode.Evan Cheng2007-02-021-5/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33780 91177308-0d34-0410-b5e6-96231b3b80d8
* Also set alignment of stack-based structs to 4 in thumb mode.Evan Cheng2007-02-011-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33741 91177308-0d34-0410-b5e6-96231b3b80d8
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