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Author SHA1 Message Date
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
Brian Gaeke
6c39a42b5c ELF constants and data structures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11945 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 06:26:20 +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
43c4361178 new testcase for intrinsic folding 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11943 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 05:28:42 +00:00
Chris Lattner
efd74a0159 The instruction combining pass removes dead instructions, there is no need 
to run the die pass after it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11942 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 05:26:06 +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
4977a163b4 New Function-level transformation utils. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11938 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 03:33:30 +00:00