Commit Graph

5705 Commits

Author SHA1 Message Date
Chris Lattner
585911ee21 Move methods out of .h file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12001 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:02:39 +00:00
Chris Lattner
e85f2348c9 Do not use explicit casts that hide the dependence on Instruction being
annotable


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12000 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:02:26 +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
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
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
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
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
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
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
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
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
Alkis Evlogimenos
745502a04b Do not generate instructions with mismatched memory/immediate sized
operands. The X86 backend doesn't handle them properly right now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11944 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 06:01:43 +00:00
Chris Lattner
7bcc0e7fff Rename AddUsesToWorkList -> AddUsersToWorkList, as that is what it does.
Create a new AddUsesToWorkList method
optimize memmove/set/cpy of zero bytes to a noop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11941 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 05:22:00 +00:00
Chris Lattner
6160e85201 Turn 'free null' into nothing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11940 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 04:57:37 +00:00
Misha Brukman
9e4a642c03 Right, it's really Extractor, not Extraction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11939 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 03:37:58 +00:00
Misha Brukman
9401deb320 A pass that uses the generic CodeExtractor to rip out *every* loop in every
function, as long as the loop isn't the only one in that function. This should
help debugging passes easier with BugPoint.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11936 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 03:33:01 +00:00
Misha Brukman
e6336031b8 A generic code extractor: given a list of BasicBlocks, it will rip them out into
a new function, taking care of inputs and outputs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11935 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 03:26:20 +00:00
Alkis Evlogimenos
84cda0f470 Further comment updates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11933 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 03:20:31 +00:00
Alkis Evlogimenos
a643a1a528 Update comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11932 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 03:12:31 +00:00
Alkis Evlogimenos
2eae379388 My previous commit broke the jit. The shift instructions always take
an 8-bit immediate. So mark the shifts that take immediates as taking
an 8-bit argument. The rest with the implicit use of CL are marked
appropriately.

A bug still exists:

def SHLDmri32  : I2A8 <"shld", 0xA4, MRMDestMem>, TB;           // [mem32] <<= [mem32],R32 imm8

The immediate in the above instruction is 8-bit but the memory
reference is 32-bit. The printer prints this as an 8-bit reference
which confuses the assembler. Same with SHRDmri32.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11931 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 02:56:26 +00:00
Brian Gaeke
9f78bf2ff7 Turn off the SparcV9MachineCodeDestructionPass for now, because it's buggy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11930 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 21:15:40 +00:00
Brian Gaeke
3d1fdee339 Correct DestroyMachineFunction's getPassName
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11929 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 21:01:14 +00:00
Chris Lattner
0321b68f6b Only clone global nodes between graphs if both graphs have the global.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11928 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 20:05:15 +00:00
Chris Lattner
6b586df328 ADD MORE FUNCTIONS!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11927 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 20:04:48 +00:00
Alkis Evlogimenos
fa5229691f Fix argument size for SHL, SHR, SAR, SHLD and SHRD families of
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11923 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 19:46:30 +00:00