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Author SHA1 Message Date
Chris Lattner
9548f20ad5 Ugh, the old sparc backend attaches MachineCodeForInstruction annotations on 
LLVM instructions.  Because it contains an explicit cast, we didn't catch it.
I guess instruction's will be annotable for the duration of the sparcv9's
existence.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11999 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 18:54:23 +00:00
Alkis Evlogimenos
96c9b8b496 Add instruction name description. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11998 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 18:44:03 +00:00
Alkis Evlogimenos
7f6124cfc2 Use correct template for SHLD and SHRD instructions so that the memory 
operand size is correctly specified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11997 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 09:19:40 +00:00
Alkis Evlogimenos
9c22aeb0b2 Improve allocation order: 
1) For 8-bit registers try to use first the ones that are parts of the
   same register (AL then AH). This way we only alias 2 16/32-bit
   registers after allocating 4 8-bit variables.

2) Move EBX as the last register to allocate. This will cause less
   spills to happen since we will have 8-bit registers available up to
   register excaustion (assuming we use the allocation order). It
   would be nice if we could push all of the 8-bit aliased registers
   towards the end but we much prefer to keep callee saved register to
   the end to avoid saving them on entry and exit of the function.

For example this gives a slight reduction of spills with linear scan
on 164.gzip.

Before:

11221 asm-printer           - Number of machine instrs printed
  975 spiller               - Number of loads added
  675 spiller               - Number of stores added
  398 spiller               - Number of register spills

After:

11182 asm-printer           - Number of machine instrs printed
  952 spiller               - Number of loads added
  652 spiller               - Number of stores added
  386 spiller               - Number of register spills


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11996 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 09:17:01 +00:00
Alkis Evlogimenos
8295f202d9 A big X86 instruction rename. The instructions are renamed to make 
their names more decriptive. A name consists of the base name, a
default operand size followed by a character per operand with an
optional special size. For example:

ADD8rr -> add, 8-bit register, 8-bit register

IMUL16rmi -> imul, 16-bit register, 16-bit memory, 16-bit immediate

IMUL16rmi8 -> imul, 16-bit register, 16-bit memory, 8-bit immediate

MOVSX32rm16 -> movsx, 32-bit register, 16-bit memory


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11995 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 08:50:03 +00:00
Brian Gaeke
6ac5300fbc Remove dead member variables of SparcV9SchedInfo and TargetSchedInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11994 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 08:40:03 +00:00
Chris Lattner
ee352852e7 Eliminate the X86-specific BMI functions, using BuildMI instead. 
Replace uses of addZImm with addImm.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11992 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 07:22:16 +00:00
Chris Lattner
168aa90bf6 Fix a miscompilation of 197.parser that occurs when you have single basic 
block loops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11990 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 07:10:16 +00:00
Chris Lattner
4279f3c984 Fix PR255: [tailduplication] Single basic block loops are very rare 
Note that this is a band-aid put over a band-aid.  This just undisables
tail duplication in on very specific case that it seems to work in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11989 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 06:41:20 +00:00
Brian Gaeke
e9f6f2c049 Update comment at head of file. Also fix C 'typedef struct' nonsense I 
inadvertently left in here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11988 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 06:33:28 +00:00
Chris Lattner
dce363d5ec Adjust to change in TII ctor arguments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11987 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 06:31:44 +00:00
Chris Lattner
bceb68807f Eliminate the distinction between "real" and "unreal" instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11986 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 06:31:16 +00:00
Brian Gaeke
620ee02353 Add more architectures, and ELF64 stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11985 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 06:30:25 +00:00
Chris Lattner
1ddf475b6a These two virtual methods are never called. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11984 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 05:59:33 +00:00
Chris Lattner
0755912c38 Remove a TON of flags that noone cares about 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11983 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 05:58:30 +00:00
Chris Lattner
9a945277c0 Noone calls these virtual methods 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11982 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 05:58:16 +00:00
Chris Lattner
0723969e87 This is the only file in the system that uses this enum. eliminate it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11981 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 05:57:59 +00:00
Chris Lattner
450b6d2998 Scrap a huge layer of cruft out of this interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11980 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 05:57:21 +00:00
Chris Lattner
e1274de2c9 Implement initial prolog/epilog code insertion methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11979 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 05:18:30 +00:00
Chris Lattner
7598a1a9a8 Remove unneeded #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11978 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 05:15:56 +00:00
Chris Lattner
561c0107b2 int64_t -> int 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11977 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 05:07:02 +00:00
Chris Lattner
6a8a9b4413 Continue Alkis's int64_t cleanup. This makes all of the immediate related 
methods take an int or unsigned value instead of int64_t.

Also, add an 'addImm' method to the MachineInstrBuilder class, because the
fact that the hardware sign or zero extends it does not/should not matter
to the code generator.  Once the old sparc backend is removed the difference
can be eliminated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11976 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 05:06:49 +00:00
Chris Lattner
c3c106ca59 Add BuildMI variants that take a MBB::iterator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11975 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 04:55:28 +00:00
Alkis Evlogimenos
8777d241cf Use correct template for ADC instruction with memory operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11974 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 02:18:17 +00:00
Chris Lattner
1c809c594b Add an instruction selector capable of selecting 'ret void' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11973 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 00:27:00 +00:00
Alkis Evlogimenos
da474adb21 SHLD and SHRD take 32-bit operands but an 8-bit immediate. Rename them 
to denote this fact.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11972 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 23:46:44 +00:00
Alkis Evlogimenos
8e475b8cfd Floating point loads/stores act on memory operands. Rename them to 
denote this fact.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11971 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 23:42:35 +00:00
Alkis Evlogimenos
91c4b52e7f Rename instruction templates to be easier to the human eye to 
parse. The name is now I (operand size)*. For example:

Im32 -> instruction with 32-bit memory operands.

Im16i8 -> instruction with 16-bit memory operands and 8 bit immediate
          operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11970 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 23:09:03 +00:00
Alkis Evlogimenos
f8da4d8839 Uncomment instructions that take both an immediate and a memory 
operand but their sizes differ.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11969 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 22:06:59 +00:00
Brian Gaeke
757c1f9d87 Fix my sloppiness 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11968 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 22:06:03 +00:00
Alkis Evlogimenos
5ab29b504d Each instruction now has both an ImmType and a MemType. This describes 
the size of the immediate and the memory operand on instructions that
use them. This resolves problems with instructions that take both a
memory and an immediate operand but their sizes differ (i.e. ADDmi32b).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11967 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 22:02:05 +00:00
Brian Gaeke
f822ee999f Fix typo in comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11966 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 21:55:18 +00:00
Chris Lattner
39bd69aa55 Add a testcase for switch instruction induction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11965 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 21:30:39 +00:00
Chris Lattner
542f149f00 Implement switch->br and br->switch folding by ripping out the switch->switch 
and br->br code and generalizing it.  This allows us to compile code like this:

int test(Instruction *I) {
  if (isa<CastInst>(I))
    return foo(7);
  else if (isa<BranchInst>(I))
    return foo(123);
  else if (isa<UnwindInst>(I))
    return foo(1241);
  else if (isa<SetCondInst>(I))
    return foo(1);
  else if (isa<VAArgInst>(I))
    return foo(42);
  return foo(-1);
}

into:

int %_Z4testPN4llvm11InstructionE("struct.llvm::Instruction"* %I) {
entry:
        %tmp.1.i.i.i.i.i.i.i = getelementptr "struct.llvm::Instruction"* %I, long 0, ubyte 4            ; <uint*> [#uses=1]
        %tmp.2.i.i.i.i.i.i.i = load uint* %tmp.1.i.i.i.i.i.i.i          ; <uint> [#uses=2]
        %tmp.2.i.i.i.i.i.i = seteq uint %tmp.2.i.i.i.i.i.i.i, 27                ; <bool> [#uses=0]
        switch uint %tmp.2.i.i.i.i.i.i.i, label %endif.0 [
                 uint 27, label %then.0
                 uint 2, label %then.1
                 uint 5, label %then.2
                 uint 14, label %then.3
                 uint 15, label %then.3
                 uint 16, label %then.3
                 uint 17, label %then.3
                 uint 18, label %then.3
                 uint 19, label %then.3
                 uint 32, label %then.4
        ]
...

As well as handling the cases in 176.gcc and many other programs more effectively.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11964 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 21:28:10 +00:00
Chris Lattner
9ff6ba1ea1 Change this so that LLC actually tries to run the code generator, though it will 
immediately abort due to lack of an instruction selector. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11963 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 20:21:45 +00:00
Chris Lattner
d62276a66e Add a hook to run with the V8 target, though it doesn't currently work. Also 
mark the PPC backend as experimental


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11962 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 19:55:16 +00:00
Chris Lattner
3da5117334 Add hook for V8 target 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11961 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 19:54:16 +00:00
Chris Lattner
8a62384253 SparcV8 now builds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11960 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 19:54:00 +00:00
Chris Lattner
9a89f37dc7 fine grainify namespacification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11959 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 19:53:18 +00:00
Chris Lattner
8d8a6bc7a3 Finegrainify namespacification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11958 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 19:52:49 +00:00
Chris Lattner
a85d46eea8 Tab completion is our friend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11957 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 19:45:39 +00:00
Chris Lattner
83ba99ac46 Clean up rules 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11956 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 19:43:40 +00:00
Chris Lattner
275f6459ab Bring this directory into "it actually compiles" land 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11955 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 19:37:18 +00:00
Chris Lattner
f13bd49d6a Fix multiple inclusion problem 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11954 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 19:31:32 +00:00
Chris Lattner
b99df4f8c2 if there is already a prototype for malloc/free, use it, even if it's incorrect. 
Do not just inject a new prototype.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11951 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 18:51:45 +00:00
Chris Lattner
8a4045e4d7 Do not remove an active template argument even if the superclass had one of the 
same name


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11950 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 17:41:48 +00:00
Chris Lattner
eb7d6d016e fix a bug in the testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11949 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 17:33:21 +00:00
Chris Lattner
81d50adfaf Ignore X = X assignments that was causing Alkis's rewrite of X86.td to crash 
tblgen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11948 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 17:31:28 +00:00
Chris Lattner
7b6ee7d8f1 new testcase for a tblgen bug that alkis ran into 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11947 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 16:43:44 +00:00
Chris Lattner
ff367ee1c5 Assert instead of going into an infinite loop! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11946 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 16:31:53 +00:00