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4279f3c984
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5696 Commits

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
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
Alkis Evlogimenos
f9186e38d5 Fix encoding of ADD and SUB family of instructions. Also rearrange 
them so that they are consistent with AND, XOR, etc...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11922 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 18:57:00 +00:00
Alkis Evlogimenos
169584ed45 Rename MRMS[0-7]{r,m} to MRM[0-7]{r,m}. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11921 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 18:55:12 +00:00
Chris Lattner
7d90a2738e setcond instructions don't have aliasing implications. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11919 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 18:09:25 +00:00
Chris Lattner
08092533b1 Fix Regression/Assembler/2004-02-27-SelfUseAssertError.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11913 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 17:28:25 +00:00
Alkis Evlogimenos
08388a4787 Add memory operand folding support for the SETcc family of 
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11907 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 16:13:37 +00:00
Alkis Evlogimenos
e56508eb7e Add memory operand folding support for SHLD and SHRD instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11905 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 15:03:18 +00:00
Alkis Evlogimenos
58ec60589b Add memory operand folding support for SHL, SHR and SAR, SHLD instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11903 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 09:28:43 +00:00
Alkis Evlogimenos
e35ba65b02 Rename SHL, SHR, SAR, SHLD and SHLR instructions to make them 
consistent with the rest and also pepare for the addition of their
memory operand variants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11902 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 06:57:05 +00:00
Chris Lattner
a0ebcebc06 Implement test/Regression/Transforms/InstCombine/canonicalize_branch.ll 
This is a really minor thing, but might help out the 'switch statement induction'
code in simplifycfg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11900 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 06:27:46 +00:00