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Author SHA1 Message Date
Misha Brukman
870e587d5d Two testcases for loops: one with outputs, one without. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11934 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-28 03:20:41 +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
John Criswell
2f1403a65f Added d and hbd MultiSource applications. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11915 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 18:02:06 +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
Chris Lattner
1aed1c7b3b Fix a verifier bug that was preventing us from ripping povray+libpng to pieces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11912 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 17:26:08 +00:00
Chris Lattner
17d3a87cda Build zlib and libpng 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11911 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 17:00:29 +00:00
Chris Lattner
0e27c98b7e Updates from Reid 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11908 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 16:17:20 +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
bd16ef84bf Make MachineOperand's immediate value an int and save 4 bytes out of 
each MachineOperand. We don't really need an int64_t immediate :-).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11906 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 15:05:28 +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
6175735da4 Initial checkin of document, contributed by Reid Spencer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11901 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 06:28:34 +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
Chris Lattner
f7b0041fb5 The instcombiner should canonicalize comparisons. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11899 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 06:27:07 +00:00
Alkis Evlogimenos
fc54e83cea Rename member function to be consistent with the rest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11898 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 06:11:15 +00:00
Alkis Evlogimenos
4817e9cac1 Add improvements to the code generator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11896 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 05:26:23 +00:00
Alkis Evlogimenos
57af2cf6f3 Make spiller push stores right after the definition of a register so 
that they are as far away from the loads as possible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11895 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 04:51:35 +00:00
Alkis Evlogimenos
ddcfd9e6fa Fix crash caused by passing register 0 to 
MRegisterInfo::isPhysicalRegister().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11894 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 01:52:34 +00:00
Alkis Evlogimenos
8fa16e47f8 Clear maps right after basic block is processed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11892 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 23:22:23 +00:00
Misha Brukman
b07dddda00 Doxygenify comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11891 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 23:20:29 +00:00
Misha Brukman
2729408840 Doxygenify and tersify comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11890 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 23:20:08 +00:00
John Criswell
412926edf7 Added PR258 and 259. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11889 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 23:13:34 +00:00
John Criswell
fd04ee687b Added support for C++ compilation. 
Made removing the object files a separate sh command so that it can easily
be commented out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11888 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 23:02:25 +00:00
John Criswell
28ccd021de C++ version of llvm-native-gcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11887 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 23:01:21 +00:00
John Criswell
fad5c3a646 Fixed test case to actually check for the static declaration. 
Oops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11886 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 22:56:13 +00:00
John Criswell
726f0b8d36 Regression tests for PR258 and PR259. 
2004-02-26-FPNotPrintableConstants.llx ensures that constants used in an
LLVM program are declared static if they are assigned to global variables.
2004-02-26-LinkOnceFunctions.llx ensures that linkonce functions get the
weak attribute.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11885 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 22:55:11 +00:00
John Criswell
3799eec3cf Fixes for PR258 and PR259. 
Functions with linkonce linkage are declared with weak linkage.
Global floating point constants used to represent unprintable values
(such as NaN and infinity) are declared static so that they don't interfere
with other CBE generated translation units.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11884 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 22:20:58 +00:00
Chris Lattner
cb582406dd Be a good little compiler and handle direct calls efficiently, even if there 
are beastly ConstantPointerRefs in the way...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11883 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 22:07:22 +00:00
Alkis Evlogimenos
71e353ed35 Uncomment assertions that register# != 0 on calls to 
MRegisterInfo::is{Physical,Virtual}Register. Apply appropriate fixes
to relevant files.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11882 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 22:00:20 +00:00
John Criswell
0550256c31 Modified the default pathname for Povray. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11881 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 20:22:59 +00:00
Chris Lattner
4f77caaa3d Since LLVM uses structure type equivalence, it isn't useful to keep around 
multiple type names for the same structural type.  Make DTE eliminate all
but one of the type names


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11879 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 20:02:23 +00:00
Chris Lattner
c230978a82 Annotations are evil. This makes Value not derive from Annotable, which makes 
all dynamically allocated LLVM values 4 bytes smaller, eliminate some vtables, and
make Value's destructor faster.

This makes Function derive from Annotation now because it is the only core LLVM
class that still has an annotation stuck onto it: MachineFunction.
MachineFunction is obviously horrible and gross (like most other annotations), but
will be the subject of refactorings later in the future.  Besides many fewer
Function objects are dynamically allocated that instructions blocks, constants,
types, etc... :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11878 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 08:08:38 +00:00
Chris Lattner
fd343b0bec add note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11876 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 08:02:57 +00:00
Chris Lattner
0e7ac16926 Use a map instead of annotations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11875 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 08:02:17 +00:00
Chris Lattner
c814937115 Make TargetData no longer use annotations! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11874 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 08:01:57 +00:00
Chris Lattner
32f54f3149 Eliminate copy-and-paste comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11873 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 08:01:30 +00:00
Chris Lattner
b1dfc70ef1 remove obsolete comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11872 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 07:59:22 +00:00
Chris Lattner
1cd4c7294c Make sure that at least one virtual method is defined in a .cpp file to avoid 
having the compiler emit RTTI and vtables to EVERY translation unit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11871 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 07:24:18 +00:00
Chris Lattner
f2dbf50efa turn things like: 
if (X == 0 || X == 2)

...where the comparisons and branches are in different blocks... into a switch
instruction.  This comes up a lot in various programs, and works well with
the switch/switch merging code I checked earlier.  For example, this testcase:

int switchtest(int C) {
  return C == 0 ? f(123) :
         C == 1 ? f(3123) :
         C == 4 ? f(312) :
         C == 5 ? f(1234): f(444);
}

is converted into this:
        switch int %C, label %cond_false.3 [
                 int 0, label %cond_true.0
                 int 1, label %cond_true.1
                 int 4, label %cond_true.2
                 int 5, label %cond_true.3
        ]

instead of a whole bunch of conditional branches.

Admittedly the code is ugly, and incomplete.  To be complete, we need to add
br -> switch merging and switch -> br merging.  For example, this testcase:

struct foo { int Q, R, Z; };
#define A (X->Q+X->R * 123)
int test(struct foo *X) {
  return A  == 123 ? X1() :
        A == 12321 ? X2():
        (A == 111 || A == 222) ? X3() :
        A == 875 ? X4() : X5();
}

Gets compiled to this:
        switch int %tmp.7, label %cond_false.2 [
                 int 123, label %cond_true.0
                 int 12321, label %cond_true.1
                 int 111, label %cond_true.2
                 int 222, label %cond_true.2
        ]
...
cond_false.2:           ; preds = %entry
        %tmp.52 = seteq int %tmp.7, 875         ; <bool> [#uses=1]
        br bool %tmp.52, label %cond_true.3, label %cond_false.3

where the branch could be folded into the switch.

This kind of thing occurs *ALL OF THE TIME*, especially in programs like
176.gcc, which is a horrible mess of code.  It contains stuff like *shudder*:

#define SWITCH_TAKES_ARG(CHAR) \
  (   (CHAR) == 'D' \
   || (CHAR) == 'U' \
   || (CHAR) == 'o' \
   || (CHAR) == 'e' \
   || (CHAR) == 'u' \
   || (CHAR) == 'I' \
   || (CHAR) == 'm' \
   || (CHAR) == 'L' \
   || (CHAR) == 'A' \
   || (CHAR) == 'h' \
   || (CHAR) == 'z')

and

#define CONST_OK_FOR_LETTER_P(VALUE, C)                 \
  ((C) == 'I' ? SMALL_INTVAL (VALUE)                    \
   : (C) == 'J' ? SMALL_INTVAL (-(VALUE))               \
   : (C) == 'K' ? (unsigned)(VALUE) < 32                \
   : (C) == 'L' ? ((VALUE) & 0xffff) == 0               \
   : (C) == 'M' ? integer_ok_for_set (VALUE)            \
   : (C) == 'N' ? (VALUE) < 0                           \
   : (C) == 'O' ? (VALUE) == 0                          \
   : (C) == 'P' ? (VALUE) >= 0                          \
   : 0)

and

#define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN)                     \
{                                                               \
  if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 1))) \
    (X) = gen_rtx (PLUS, SImode, XEXP (X, 0),                   \
                   copy_to_mode_reg (SImode, XEXP (X, 1)));     \
  if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 0))) \
    (X) = gen_rtx (PLUS, SImode, XEXP (X, 1),                   \
                   copy_to_mode_reg (SImode, XEXP (X, 0)));     \
  if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == MULT)   \
    (X) = gen_rtx (PLUS, SImode, XEXP (X, 1),                   \
                   force_operand (XEXP (X, 0), 0));             \
  if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == MULT)   \
    (X) = gen_rtx (PLUS, SImode, XEXP (X, 0),                   \
                   force_operand (XEXP (X, 1), 0));             \
  if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == PLUS)   \
    (X) = gen_rtx (PLUS, Pmode, force_operand (XEXP (X, 0), NULL_RTX),\
                   XEXP (X, 1));                                \
  if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == PLUS)   \
    (X) = gen_rtx (PLUS, Pmode, XEXP (X, 0),                    \
                   force_operand (XEXP (X, 1), NULL_RTX));      \
  if (GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == CONST       \
           || GET_CODE (X) == LABEL_REF)                        \
    (X) = legitimize_address (flag_pic, X, 0, 0);               \
  if (memory_address_p (MODE, X))                               \
    goto WIN; }

and others.  These macros get used multiple times of course.  These are such
lovely candidates for macros, aren't they?  :)

This code also nicely handles LLVM constructs that look like this:

  if (isa<CastInst>(I))
   ...
  else if (isa<BranchInst>(I))
   ...
  else if (isa<SetCondInst>(I))
   ...
  else if (isa<UnwindInst>(I))
   ...
  else if (isa<VAArgInst>(I))
   ...

where the isa can obviously be a dyn_cast as well.  Switch instructions are a
good thing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11870 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-26 07:13:46 +00:00