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d4c8bea47f
llvm-6502/lib/Target/PowerPC
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Nate Begeman d4c8bea47f Enable optimization suggested by Chris Lattner to not emit reloc stubs for 
static global variables whose addresses are taken.  This allows us to
convert the following code for taking the address of a static function foo

        addis r2, r30, ha16(Ll1__2E_foo_2$non_lazy_ptr-"L00001$pb")
        lwz r3, lo16(Ll1__2E_foo_2$non_lazy_ptr-"L00001$pb")(r2)

which also includes linker stub code emitted at the end of the .s file not
shown here, and replace it with this:

        addis r2, r30, ha16(l1__2E_foo_2-"L00001$pb")
        la r3, lo16(l1__2E_foo_2-"L00001$pb")(r2)

which in addition to not needing linker help, also has no load instruction.
For those not up on PowerPC mnemonics, la is shorthand for add immediate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18239 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-25 07:09:01 +00:00
..
.cvsignore ignore generated files. 2004-11-21 00:00:54 +00:00
LICENSE.TXT Added Louis Gerbarg. Louis is given credit in the CREDITS.TXT file, so I 2004-08-05 23:46:27 +00:00
Makefile Change Library Names Not To Conflict With Others When Installed 2004-10-27 23:18:45 +00:00
PowerPC.td Get rid of flags that are dead 2004-11-23 20:37:41 +00:00
PowerPCInstrInfo.h Get rid of flags that are dead 2004-11-23 20:37:41 +00:00
PowerPCTargetMachine.h Do not provide the non-specialized PowerPCJITInfo object, it is pretty useless. 2004-11-23 05:55:38 +00:00
PPC32.td Get rid of flags that are dead 2004-11-23 20:37:41 +00:00
PPC32ISelSimple.cpp Enable optimization suggested by Chris Lattner to not emit reloc stubs for 2004-11-25 07:09:01 +00:00
PPC32JITInfo.h Implement all of the methods 2004-11-23 05:57:57 +00:00
PPC32RegisterInfo.td Switch from bytes to bits for alignment. 2004-08-21 20:14:40 +00:00
PPC64.td Get rid of flags that are dead 2004-11-23 20:37:41 +00:00
PPC64CodeEmitter.cpp getJITStubForFunction is optional and unimplemented, just remove it. 2004-11-20 04:14:44 +00:00
PPC64InstrInfo.cpp PowerPC 32-/64-bit split: Part II, 64-bit customizations on PowerPC 2004-08-17 04:57:37 +00:00
PPC64InstrInfo.h PowerPC 32-/64-bit split: Part II, 64-bit customizations on PowerPC 2004-08-17 04:57:37 +00:00
PPC64ISelSimple.cpp Several fixes and enhancements to the PPC32 backend. 2004-10-07 22:30:03 +00:00
PPC64JITInfo.h getJITStubForFunction is optional and unimplemented, just remove it. 2004-11-20 04:14:44 +00:00
PPC64RegisterInfo.cpp Eliminate usage of MRegisterInfo::getRegClass(physreg) 2004-10-26 05:40:45 +00:00
PPC64RegisterInfo.h PowerPC 32-/64-bit split: Part II, 64-bit customizations on PowerPC 2004-08-17 04:57:37 +00:00
PPC64RegisterInfo.td Switch from bytes to bits for alignment. 2004-08-21 20:14:40 +00:00
PPC64TargetMachine.h PowerPC 32-/64-bit split: Part II, 64-bit customizations on PowerPC 2004-08-17 04:57:37 +00:00
PPC.h Fix build on Linux/PowerPC64 using SuSE GCC (#undef PPC) 2004-11-14 20:34:01 +00:00
PPCAsmPrinter.cpp Enable optimization suggested by Chris Lattner to not emit reloc stubs for 2004-11-25 07:09:01 +00:00
PPCBranchSelector.cpp Remove unnecessary header include 2004-10-07 22:24:32 +00:00
PPCCodeEmitter.cpp Enable optimization suggested by Chris Lattner to not emit reloc stubs for 2004-11-25 07:09:01 +00:00
PPCFrameInfo.h Remove file that is no longer used, and move include of MRegisterInfo.h 2004-10-26 06:02:38 +00:00
PPCInstrBuilder.h * Wrap long lines (comments and code) 2004-07-07 20:01:36 +00:00
PPCInstrFormats.td Fix encoding of fsel, fixing olden/power, McCat/bisort and several others. 2004-11-25 04:11:07 +00:00
PPCInstrInfo.cpp Add ori reg, reg, 0 as a move instruction. This can be generated from 2004-10-07 22:26:12 +00:00
PPCInstrInfo.h PowerPC 32-/64-bit split: Part I, PPC32* bit files, adapted from former PowerPC* 2004-08-17 04:55:41 +00:00
PPCInstrInfo.td Fix encoding of fneg instruction 2004-11-25 03:53:44 +00:00
PPCJITInfo.cpp Fix the build on non ppc machines 2004-11-25 06:14:45 +00:00
PPCJITInfo.h This method is dead 2004-11-23 18:47:55 +00:00
PPCRegisterInfo.cpp Eliminate usage of MRegisterInfo::getRegClass(physreg) 2004-10-26 05:40:45 +00:00
PPCRegisterInfo.h PowerPC 32-/64-bit split: Part I, PPC32* bit files, adapted from former PowerPC* 2004-08-17 04:55:41 +00:00
PPCRegisterInfo.td Revamp the Register class, and allow the use of the RegisterGroup class to 2004-09-14 04:17:02 +00:00
PPCRelocations.h * Rename existing relocations to be more specific 2004-11-24 22:30:08 +00:00
PPCTargetMachine.cpp The JIT works enough 2004-11-25 04:14:54 +00:00
PPCTargetMachine.h Move JITInfo from PPCTM to PPC32TM 2004-11-23 05:56:40 +00:00
README.txt Put int the getReg cast optimization from x86 so that we generate fewer 2004-11-08 02:25:40 +00:00

README.txt 

TODO:
* poor switch statement codegen
* load/store to alloca'd array or struct.
* implement not-R0 register GPR class
* implement scheduling info
* implement do-loop pass
* implement do-loop -> bdnz transform
* implement powerpc-64 for darwin
* implement powerpc-64 for aix
* use stfiwx in float->int
* should hint to the branch select pass that it doesn't need to print the
  second unconditional branch, so we don't end up with things like:
	b .LBBl42__2E_expand_function_8_674	; loopentry.24
	b .LBBl42__2E_expand_function_8_42	; NewDefault
	b .LBBl42__2E_expand_function_8_42	; NewDefault

Currently failing tests that should pass:
* MultiSource
  |- Applications
  |  `- hbd: miscompilation