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path: root/lib/Target/PowerPC/PPCRegisterInfo.cpp
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2008-04-30Tail call optimization improvements:Arnold Schwaighofer
Move platform independent code (lowering of possibly overwritten arguments, check for tail call optimization eligibility) from target X86ISelectionLowering.cpp to TargetLowering.h and SelectionDAGISel.cpp. Initial PowerPC tail call implementation: Support ppc32 implemented and tested (passes my tests and test-suite llvm-test). Support ppc64 implemented and half tested (passes my tests). On ppc tail call optimization is performed if caller and callee are fastcc call is a tail call (in tail call position, call followed by ret) no variable argument lists or byval arguments option -tailcallopt is enabled Supported: * non pic tail calls on linux/darwin * module-local tail calls on linux(PIC/GOT)/darwin(PIC) * inter-module tail calls on darwin(PIC) If constraints are not met a normal call will be emitted. A test checking the argument lowering behaviour on x86-64 was added. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50477 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-14Reverse sense of unwind-tables option. This meansDale Johannesen
stack tracebacks on Darwin x86-64 won't work by default; nevertheless, everybody but me thinks this is a good idea. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49663 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-08Implement new llc flag -disable-required-unwind-tables.Dale Johannesen
Corresponds to -fno-unwind-tables (usually default in gcc). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49361 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02Cosmetic changes per EH patch review feedback.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49096 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02Recommitting EH patch; this should answer most of theDale Johannesen
review feedback. -enable-eh is still accepted but doesn't do anything. EH intrinsics use Dwarf EH if the target supports that, and are handled by LowerInvoke otherwise. The separation of the EH table and frame move data is, I think, logically figured out, but either one still causes full EH info to be generated (not sure how to split the metadata correctly). MachineModuleInfo::needsFrameInfo is no longer used and is removed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49064 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01Revert 49006 for the moment.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49046 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-31Emit exception handling info for functions which areDale Johannesen
not marked nounwind, or for all functions when -enable-eh is set, provided the target supports Dwarf EH. llvm-gcc generates nounwind in the right places; other FEs will need to do so also. Given such a FE, -enable-eh should no longer be needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49006 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-31Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48995 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-20detabify llvm, patch by Mike Stump!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48577 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10Disable prolog code that aligns the stack when aDale Johannesen
local object of >16 byte alignment exists. It does not work and getting it to work is not trivial, as explained in the comment. This fixes all the remaining ppc32 failures in the struct-layout-1 part of the gcc testsuite. (gcc does not support this either, and the only way to get such an object is with __attribute__((aligned)) or generic vectors; it can't be done in a standard-conforming program, or with Altivec. So I think disabling it is OK.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48188 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10Change the "enable/disable" mechanism so that we can enable PPC registerBill Wendling
scavenging for 32-bit and 64-bit separately. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48186 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10Add description of individual bits in CR. This fix PR1765.Nicolas Geoffray
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48143 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-04Removed spurious EnablePPCRS check.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47918 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-04Use a command-line option to turn register scavenging on/off for PPC.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47915 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-03This is the initial check-in for adding register scavenging to PPC. (Currently,Bill Wendling
PPC-64 doesn't work.) This also lowers the spilling of the CR registers so that it uses a register other than the default R0 register (the scavenger scrounges for one). A significant part of this patch fixes how kill information is handled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47863 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-13Fix the PPC JIT regressions by encoding zeroreg as 0 for BLR.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47067 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-10Rename MRegisterInfo to TargetRegisterInfo.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46930 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-01Remove the nasty LABEL hack with a much less evil one. Now ↵Evan Cheng
llvm.dbg.func.start implies a stoppoint is set. SelectionDAGISel records a new source line but does not create a ISD::LABEL node for this special stoppoint. Asm printer will magically print this label. This ensures nothing is emitted before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46635 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31Add an extra operand to LABEL nodes which distinguishes between debug, EH, ↵Evan Cheng
or misc labels. This fixes the EH breakage. However I am not convinced this is *the* solution. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46609 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31Makes the same change in ppc backend: avoid inserting prologue before debug ↵Evan Cheng
labels. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46596 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-11rename MachineInstr::setInstrDescriptor -> setDescChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45871 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07rename TargetInstrDescriptor -> TargetInstrDesc.Chris Lattner
Make MachineInstr::getDesc return a reference instead of a pointer, since it can never be null. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45695 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07Move a bunch more accessors from TargetInstrInfo to TargetInstrDescriptorChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45680 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07Move even more functionality from MRegisterInfo into TargetInstrInfo.Owen Anderson
Some day I'll get it all moved over... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45672 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-01Move some more instruction creation methods from RegisterInfo into InstrInfo.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45484 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-31Move copyRegToReg from MRegisterInfo to TargetInstrInfo. This is part of theOwen Anderson
Machine-level API cleanup instigated by Chris. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45470 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-31Rename SSARegMap -> MachineRegisterInfo in keeping with the idea Chris Lattner
that "machine" classes are used to represent the current state of the code being compiled. Given this expanded name, we can start moving other stuff into it. For now, move the UsedPhysRegs and LiveIn/LoveOuts vectors from MachineFunction into it. Update all the clients to match. This also reduces some needless #includes, such as MachineModuleInfo from MachineFunction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45467 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30Add new shorter predicates for testing machine operands for various types: Chris Lattner
e.g. MO.isMBB() instead of MO.isMachineBasicBlock(). I don't plan on switching everything over, so new clients should just start using the shorter names. Remove old long accessors, switching everything over to use the short accessor: getMachineBasicBlock() -> getMBB(), getConstantPoolIndex() -> getIndex(), setMachineBasicBlock -> setMBB(), etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45464 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-30Use MachineOperand::getImm instead of MachineOperand::getImmedValue. ↵Chris Lattner
Likewise setImmedValue -> setImm git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45453 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29Remove attribution from file headers, per discussion on llvmdev.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08Fix a significant code quality regression I introduced on PPC64 quite Chris Lattner
a while ago. We now produce: _foo: mflr r0 std r0, 16(r1) ld r2, 16(r1) std r2, 0(r3) ld r0, 16(r1) mtlr r0 blr instead of: _foo: mflr r0 std r0, 16(r1) lis r0, 0 ori r0, r0, 16 ldx r2, r1, r0 std r2, 0(r3) ld r0, 16(r1) mtlr r0 blr for: void foo(void **X) { *X = __builtin_return_address(0); } on ppc64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44701 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08implement __builtin_return_addr(0) on ppc.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44700 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08refactor some code to avoid overloading the name 'usesLR' in Chris Lattner
different places to mean different things. Document what the one in PPCFunctionInfo means and when it is valid. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44699 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-08Fix a compilation warning.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44691 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-05Added canFoldMemoryOperand for PPC.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44623 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-05Add a argument to storeRegToStackSlot and storeRegToAddr to specify whetherEvan Cheng
the stored register is killed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44600 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-02Remove redundant foldMemoryOperand variants and other code clean up.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44517 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-27Fix a crash on invalid code due to memcpy lowering.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44378 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-13Add parameter to getDwarfRegNum to permit targetsDale Johannesen
to use different mappings for EH and debug info; no functional change yet. Fix warning in X86CodeEmitter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44056 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-12Completely forgot, that we have some debug information emission on PPC. This ↵Anton Korobeynikov
should fix some regressions on ppc nightly tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44029 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-11Use TableGen to emit information for dwarf register numbers. Anton Korobeynikov
This makes DwarfRegNum to accept list of numbers instead. Added three different "flavours", but only slightly tested on x86-32/linux. Please check another subtargets if possible, git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43997 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-18- Added getOpcodeAfterMemoryUnfold(). It doesn't unfold an instruction, but ↵Evan Cheng
only returns the opcode of the instruction post unfolding. - Fix some copy+paste bugs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43153 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-18Use SmallVectorImpl instead of SmallVector with hardcoded size in MRegister ↵Evan Cheng
public interface. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43150 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-16Fix a bug handling frame references in ppc inline asm when the frame offsetChris Lattner
doesn't fit into 16 bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43032 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-05- Added a few target hooks to generate load / store instructions from / to anyEvan Cheng
address (not just from / to frameindexes). - Added target hooks to unfold load / store instructions / SDNodes into separate load, data processing, store instructions / SDNodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42621 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-26Allow copyRegToReg to emit cross register classes copies.Evan Cheng
Tested with "make check"! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42346 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-14Fix comments.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41947 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-07Add missing index versions of instructions to the map.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41776 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-19Change instruction description to split OperandList into OutOperandList andEvan Cheng
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
2007-07-14Long live the exception handling!Anton Korobeynikov
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
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