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183 Commits

Author SHA1 Message Date
Misha Brukman
bb966a4a59 More notes on bugs, unimplemented features, and suggested code improvements. 
Written by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15235 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 16:23:55 +00:00
Misha Brukman
3c616b45e7 Fix subtracting values > 2^15 in the prologue/epilogue, by Nate Begeman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15234 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 16:22:52 +00:00
Misha Brukman
1be339ac4c Running list of bugs, unimplemented features, currently broken tests, until we 
have a nightly tester set up for PowerPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15147 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 22:37:22 +00:00
Misha Brukman
4722544855 Eliminate spurious empty space; make code easier to page through. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15146 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 22:35:49 +00:00
Misha Brukman
1245c35935 Simplify boolean test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15145 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 21:43:26 +00:00
Misha Brukman
b160d1f9f7 Implement casting a floating point to 32-bit unsigned value 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15143 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 20:32:59 +00:00
Misha Brukman
e2eceb5c73 * Codegen of GEPs dramatically improved by folding multiplies and adds 
* Function pointers implemented correctly using appropriate stubs

Contributed by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15133 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 16:08:20 +00:00
Misha Brukman
9accb24c89 Bool alignment on MacOSX/PowerPC is 4 bytes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15122 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 01:11:46 +00:00
Misha Brukman
4c14f33844 * Change class of BoolTy back to cInt 
* Fix indentation back to 2 spaces


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15121 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 01:11:19 +00:00
Misha Brukman
2ed17cadb4 * Change bool from cInt to cByte (for now) 
* Don't allow negative immediates to users of unsigned immediates
* Fix long compares
* Support <const int>, op as a potential immediate candidate
* Fix sign extension of short and byte loads
* Fix and improve integer casts
* Fix passing of doubles as vararg functions

Patch contributed by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15109 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 15:58:04 +00:00
Misha Brukman
a31f1f7cb2 * Add the lost fix to define the second reg of a 2-reg representation of longs 
* Fix opcode RLWNM -> RLWINM since it uses an immediate const shift value


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15087 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 20:30:18 +00:00
Misha Brukman
17a9000ac8 * Speed up canUseAsImmediateForOpcode() by comparing Operand before 
dyn_cast<>ing and checking Constant's value
* Convert tabs to spaces


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15086 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 20:22:06 +00:00
Misha Brukman
97a296f743 * Fix printing of signed immediate values (Nate Begeman) 
* Fix printing of `zeroinitializer'
* Fix printing of `linkonce' globals, complete with stubs


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15084 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 20:11:11 +00:00
Misha Brukman
1013ef5228 * Fix printing of signed immediate values 
* Generation of opcodes that take 16 bit immediates
* Rewrote multiply to be correct for 64 bit values
* Rewrote all the long handling to be correct for PowerPC
* Fix visitSelectInst() to define the upper register of the pair of regs
  representing a long value

Patch contributed by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15083 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 20:09:08 +00:00
Misha Brukman
e0380e0c42 Use addSImm() instead of addImm() for stack offsets, which may be negative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15081 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 19:36:57 +00:00
Misha Brukman
53d9a48855 Add SUBI instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15077 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 15:53:04 +00:00
Misha Brukman
cd2273f4a7 Shorts are aligned to 2 bytes, bools to 1 byte (in structs). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15048 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 20:59:57 +00:00
Misha Brukman
bf417a6d46 Treat external variables similarly to those with weak linkage: load indirect. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15047 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 20:43:05 +00:00
Misha Brukman
86ddcf9d4f Differentiate between global and weak symbol loads 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15037 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 15:52:25 +00:00
Misha Brukman
ec6319a00c * Differentiate between global and weak symbol loads 
* Fix functions that take more than 32 bytes of args
* Alignment of doubles in structs is 4 bytes, not 8
* Fix passing long args: rN = hi, rN+1 = lo
* Rewrite signed divide
* Rewrite Intrinsic::returnaddress

Patch courtesy of Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15036 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 15:51:37 +00:00
Misha Brukman
e48178e8a6 Differentiate between global and weak symbol loads 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15035 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 15:45:27 +00:00
Misha Brukman
5c4544160f Double alignment in structs is 4 bytes, not 8. Patch by Nate Begeman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15034 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 15:43:25 +00:00
Misha Brukman
d43b9fd1ae Fix stack frame layout in prologue/epilogue. Patch courtesy of Nate Begeman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15026 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 02:23:09 +00:00
Misha Brukman
ba1c1da36a Move handing of GlobalValues from getReg() to copyConstantToRegister(), this 
will avoid extra register-to-register copies.  Thanks to Chris for the idea.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15019 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 00:59:38 +00:00
Misha Brukman
61114619bc * Fn args passed in registers are now recorded as used by the call instruction 
`-> asm printer updated to not print out those registers with the call instr

All of Shootout tests now work.  Great thanks to Nate Begeman for the patch!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15015 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 00:42:19 +00:00
Misha Brukman
7e898c3e04 * cFP class split into cFP32 and cFP64 
* Fn args passed in registers are now recorded as used by the call instruction
`-> asm printer updated to not print out those registers with the call instr
* Stack frame layout in prolog/epilog fixed, spills and vararg fns now work
* float/double to signed int codegen now correct
* various single precision float codegen bugs fixed
* const integer multiply codegen fixed
* select and setcc blocks inserted into the correct place in machine CFG
* load of integer constant code optimized

All of Shootout tests now work.  Great thanks to Nate Begeman for the patch!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15014 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 00:41:46 +00:00
Chris Lattner
a51e4f6301 Fix infinite loop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14971 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-18 18:45:01 +00:00
Chris Lattner
67910e1eb0 CPR Fixes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14961 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-18 07:29:35 +00:00
Misha Brukman
a57b76fece We don't really need to #include IPO.h into this file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14911 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-17 18:37:46 +00:00
Misha Brukman
bebde759e5 * Use LI(S) to copy constants into registers intead of ADDI(S) as the latter is 
a funky way to "use" R0 for a 0-valued operand
* Add IMPLICIT_DEFs for incoming function arguments via registers to help the
  register allocator not clobber those registers
* Implement comparisons with longs
* Teach emitSelectOperation() to fold the SetCC operation

Patch contributed by Nate Begeman


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14901 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-16 21:06:24 +00:00
Misha Brukman
af7f28cdac * Store all non-volatile int registers R13-31 on the stack, restore on exit 
* Fix comment formatting


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14900 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-16 20:55:20 +00:00
Misha Brukman
be15f67af7 Fix code formatting 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14899 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-16 20:54:25 +00:00
Misha Brukman
01d46e9c55 Implement PowerPCInstrInfo::isMoveInstr(), patch by Nate Begeman 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14898 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-16 20:51:55 +00:00
Misha Brukman
6b4ea88e83 Add prototype for TargetInstrInfo::isMoveInstr() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14897 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-16 20:50:55 +00:00
Misha Brukman
86fd274790 * Enable allocation of registers r2-r10 
* Allocate registers 13-31 backwards (to be able to store them all at once)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14896 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-16 20:35:20 +00:00
Misha Brukman
2bf5438931 Add IMPLICIT_DEFS pseudo-instruction; patch by: Nate Begeman 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14895 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-16 20:33:41 +00:00
Misha Brukman
039ba763d1 The generated instruction selector isn't (yet) functional 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14894 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-16 20:31:13 +00:00
Misha Brukman
da2b13f694 * Output non-lazy linking stubs for external global variables 
* Get rid of dead and #if 0'd code
* Minor for loop speed-up: save end iterator instead of querying every time


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14893 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-16 20:29:04 +00:00
Misha Brukman
6f14ad1ca0 Define double alignment as 8 bytes now that assert(DoubleAlignment == PointerSize) 
has been eliminated


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14891 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-16 19:32:12 +00:00
Misha Brukman
29188c6ff6 * Add spaces between words and numbers in comments printed out for longs/floats 
* Print out IMPLICIT_DEFS as comments in the assembly, patch by Nate Begeman


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14890 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-16 19:01:13 +00:00
Chris Lattner
81d54465d9 The powerpc is now gone. However it is now just known as the Skeleton target. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14877 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-16 07:14:34 +00:00
Chris Lattner
017fdcb76d Revert stuff that I didn't mean to checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14844 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-15 02:33:38 +00:00
Chris Lattner
76e2df2645 Patches towards fixing PR341 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14841 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-15 02:14:30 +00:00
Misha Brukman
5f8cce1348 Make sure MTSPR instruction is inserted into the BasicBlock 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14822 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-14 18:26:31 +00:00
Misha Brukman
32caa8de62 Don't define the same register twice when loading a ConstantPointerRef to a reg 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14819 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-14 17:57:04 +00:00
Misha Brukman
8d442c2dc4 * Fix multiplication by powers of two and otherwise 
* Clarify variable name (StoreInst SI instead of LI)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14818 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-14 15:29:51 +00:00
Misha Brukman
a596f8c3aa * Specify that FP arith options have 3 operands 
* Correctly load FP constants from the constant pool, should be refactored


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14799 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-13 15:35:45 +00:00
Misha Brukman
d9aa7836e2 Correctly load FP constants out of the constant pool. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14782 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-12 23:49:47 +00:00
Misha Brukman
01eca8d2c2 Implement getModuleMatchQuality and getJITMatchQuality() for PowerPC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14780 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-12 23:36:12 +00:00
Chris Lattner
68905bb6fc Delete the allocate*TargetMachine function, which is now dead. 
The shared command line options are now in a header that makes sense.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14757 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-11 04:17:58 +00:00
Chris Lattner
0cf0c37469 Delete the allocate*TargetMachine function, which is now dead . 
The shared command line options are now in a header that makes sense.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14756 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-11 04:17:10 +00:00
Chris Lattner
71d24aab2d Make these format a bit nicer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14747 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-11 03:27:42 +00:00
Chris Lattner
d36c970a11 Auto-registrate target 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14745 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-11 02:48:49 +00:00
Chris Lattner
98599d098f Add compilability 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14744 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-11 02:48:28 +00:00
Misha Brukman
313efcb886 * Add support for indexing into structures, thanks to Chris (x86) 
The large diff is because of indentation of a whole region
* Fix querying predecessor blocks in SelectPHINodes(), thanks to Brian (v8)
* Add support for external functions malloc() and free()
* Fix some code indentation

Remember, kids: It's not plagiarism if you "creatively borrow" from your
sources.  It's called "research"!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14723 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-09 15:45:07 +00:00
Misha Brukman
c1ef127ae2 Read/write the offset value for stack-relative loads via correct instr operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14722 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-09 15:37:16 +00:00
Misha Brukman
f3f6382423 Add support for __fixdfdi(), __floatdisf(), and __floatdidf() external functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14703 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-08 19:41:16 +00:00
Misha Brukman
0aa97c625b * Use several Function* for external functions instead of a std::map 
* Non-const FP values must be loaded into int regs (for vararg fns) via memory


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14701 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-08 18:27:59 +00:00
Misha Brukman
fc879c336b * Add support for loading FP constants from the constant pool 
* Load FP values into int regs as well for vararg functions; without memory ops!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14700 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-08 18:02:38 +00:00
Misha Brukman
05fcd0c891 * Fix header comment, excise references to X86 
* Add suport for printing out references to constant pool indices


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14699 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-08 17:58:04 +00:00
Misha Brukman
2834a4dd1d * Use a map for caching lookups to external functions (fp div/rem) 
* Tabs to spaces


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14673 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-07 20:07:22 +00:00
Misha Brukman
e62cd37c2a * Wrap long lines (comments and code) 
* Tabs to spaces


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14672 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-07 20:01:36 +00:00
Misha Brukman
b093259edd Add fmod() to the Module being compiled so that it gets a stub in the asm file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14670 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-07 15:36:18 +00:00
Misha Brukman
d18a31d2fa * Add support for calling vararg functions (must pass doubles in int regs too) 
* Make visitSetCondInst() share condition-generating code with EmitComparison()
* There are 13 FPRs for function-passing arguments, not 8
* Do not rely on registers being sequential, use an array lookup
* In unimplemented switch cases, send an error and abort instead of silent
  fall-through
* Add doInitialization() for adding function prototypes for external math fns
* Minor changes: fix indentation, spacing, code clarity


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14653 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-06 22:51:53 +00:00
Misha Brukman
4cf5112500 Use the more compact bl' instead of cryptic (but equivalent) bcl 20,31' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14652 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-06 22:40:34 +00:00
Misha Brukman
e9c6551fed * Add utility functions: convert SetCC => PPC opcode and invert PPC opcode 
* If SetCondInst is folded into BranchInst (and it is the only user), do not
  emit code for SetCondInst
* Fix assembly opcodes in comments in visitSetCondInst()
* Fix codegen of conditional branches


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14643 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-06 15:32:44 +00:00
Misha Brukman
68a9b04e77 Add FIXME notes for spilling int/fp regs (need to calculate stack space). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14581 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-02 17:54:38 +00:00
Chris Lattner
fab96f0b69 Fix all of those problems that the PPC backend has running 176.gcc :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14565 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-02 05:48:42 +00:00
Misha Brukman
452069abcc * Follow the PowerPC convention of leaving 24 bytes for linking on the stack. 
* Also leave space for spilling integer registers (this should be calculated)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14554 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-01 21:35:00 +00:00
Misha Brukman
425ff24bb3 * Get rid of constant-expr handling code: we use the ConstantExpr lowering pass 
* Use the SetCC handling code in the format of Brian's V8
* Add FIXMEs where calls to functions are being made without adding them to the
  Module first... they cause missing symbols at assembly-time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14553 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-01 21:34:10 +00:00
Misha Brukman
f233a84b3c Wrap long line 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14552 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-01 21:27:59 +00:00
Misha Brukman
15eb0a15e5 * Do not allocate r0 as we use it indiscriminantly in the instr selector. 
* Do not define CR register class because we don't (yet) have the i4 type


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14551 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-01 21:24:50 +00:00
Misha Brukman
4363bdb0e5 Check if operand has an allocated reg before requesting it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14550 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-01 21:09:12 +00:00
Misha Brukman
c661c3001c * Coalesce the handy CALL* alias opcodes with the standard ones 
* Congregate more branch-and-link opcodes together
* Mark FP, CPR, and special registers as volatile across calls


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14511 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-30 22:00:45 +00:00
Misha Brukman
da7515a378 * Allow more registers to be allocated from the general register pool 
* Define the condition register class


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14510 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-30 21:54:50 +00:00
Misha Brukman
b9e8f97aef * Inquire about the number of operands from the instruction directly 
* Only check for a register if we are sure the instruction has one allocated


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14509 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-30 21:54:12 +00:00
Misha Brukman
ce76db9083 Always assume a function may have calls because the printer may add `bl' to get 
the PC in a code sequence for global variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14506 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-30 00:09:12 +00:00
Misha Brukman
14d8c7a6a0 * Don't save LR when outputting globals: it's already saved on the stack once 
for the function
* Registers aren't necessarily sequential wrt their enums, don't rely on it
  when emitting function arguments into sequential registers
* Remove X86-specific comments about AL/BL/AH/BH/EDX/etc
* Add an abort() for an unimplemented signed right shift
* The src operand for a GEP was never emitted!  Fixed.
* We can skip zero-valued GEP indices as they are no-ops.

"Hello, World!" now works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14505 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-29 23:45:05 +00:00
Misha Brukman
61297ee118 * Stop using BBNumbering, we don't really need it 
* Only increment labelNumber once, because it's used by both Load{hi,lo}Addr
* There is no .bss section on PowerPC
* Use .align 2 instead of other random numbers


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14504 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-29 23:40:57 +00:00
Misha Brukman
cbcdb9c0a7 Set up the prologue and epilogue to be more like the manual and GCC output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14502 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-29 23:38:26 +00:00
Misha Brukman
5fa2b028b8 * Use LA instead of LWZ for LoadLoAddr 
* Specify the isCall bit and caller-save registers for some call instrs


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14501 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-29 23:37:36 +00:00
Misha Brukman
8ee0100880 Only allocate non-volatile registers R13-31 (for now). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14500 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-29 23:35:32 +00:00
Misha Brukman
60f35813fc Lower ConstantExpressions before the code generator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14497 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-29 23:33:20 +00:00
Misha Brukman
e19ca38a32 * Fix saving LR in function prologue 
* Adjust epilogue restore sequence to match the PowerPC documentation


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14480 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-29 17:14:42 +00:00
Misha Brukman
218bec7bd3 Assembly syntax/comment fixes by Nate Begeman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14479 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-29 17:13:26 +00:00
Chris Lattner
1b17438aa8 The code generator should work with unreachable blocks. If not, then this 
is a bug that should be fixed in the code generator, not papered over with
the simplifycfg pass.  Eliminating this makes bugpoint much more useful


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14477 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-29 07:20:16 +00:00
Misha Brukman
7cd444082e Can't print out machine code before it is constructed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14472 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-28 21:16:57 +00:00
Misha Brukman
3905b57442 Fix the assembly opcode on LOADLoAddr, courtesy of Nate Begeman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14470 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-28 18:27:08 +00:00
Misha Brukman
b2edb443e0 Set isBranch and isTerminator bits on all branch instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14469 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-28 18:23:35 +00:00
Misha Brukman
7e5812cd17 Fix loading and storing PC-relative static variables, courtesy of Nate Begeman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14468 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-28 18:20:59 +00:00
Misha Brukman
a6e58b3cfb No need to generate a lazy-linking stub for internal functions, they can be 
resolved by the static linker.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14467 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-28 18:03:37 +00:00
Misha Brukman
9c661c8e26 Do not set the `link' bit when branching to the first BB of a function, as it 
will cause an infinite loop.  The link bit is only used for calling functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14466 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-28 17:57:40 +00:00
Misha Brukman
bb4a90820c Fix spacing around function arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14463 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-28 15:53:27 +00:00
Misha Brukman
34fa8714a4 Allow debugging machine instrs (by printout) before/after isel and regalloc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14416 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 19:57:47 +00:00
Misha Brukman
c6cc10f48f Combine several if stmts with returns into an if-then-elseif-else chain. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14414 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 19:24:52 +00:00
Misha Brukman
d47bbf7ce5 Do not move any values into registers for a void return (there isn't anything). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14413 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 19:04:27 +00:00
Misha Brukman
1cbb3ee75f Convert tabs to spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14412 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 18:45:07 +00:00
Misha Brukman
972569a22f Fix opcode: no immediate in an `or r1, r2, r3' (all registers) instr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14411 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 18:36:53 +00:00
Misha Brukman
2bf183c092 * Be consistent about MachineBB labels and references to them in instr stream 
* Use MachineBB's built-in numbering system instead of reinventing one


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14408 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 15:42:10 +00:00
Misha Brukman
22e12076e9 * Initialize the entire array statically, not member-at-a-time 
* Remove x86-specific comment re: intel vs. at&t assembly syntax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14406 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 15:11:34 +00:00