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10832 Commits

Author SHA1 Message Date
Alkis Evlogimenos 519e1e8c92 Fix crash caused by passing register 0 to 
MRegisterInfo::isPhysicalRegister().

llvm-svn: 11894
 2004-02-27 01:52:34 +00:00
Alkis Evlogimenos 5a3bab9402 Clear maps right after basic block is processed. 
llvm-svn: 11892
 2004-02-26 23:22:23 +00:00
Misha Brukman 61107d315b Doxygenify comments. 
llvm-svn: 11891
 2004-02-26 23:20:29 +00:00
Misha Brukman c49e64347c Doxygenify and tersify comments. 
llvm-svn: 11890
 2004-02-26 23:20:08 +00:00
John Criswell bbde7d667f Added PR258 and 259. 
llvm-svn: 11889
 2004-02-26 23:13:34 +00:00
John Criswell 9ed08ab1f7 Added support for C++ compilation. 
Made removing the object files a separate sh command so that it can easily
be commented out.

llvm-svn: 11888
 2004-02-26 23:02:25 +00:00
John Criswell c7ef3c61fd C++ version of llvm-native-gcc. 
llvm-svn: 11887
 2004-02-26 23:01:21 +00:00
John Criswell 6192eeb0c5 Fixed test case to actually check for the static declaration. 
Oops.

llvm-svn: 11886
 2004-02-26 22:56:13 +00:00
John Criswell 6fd2e36fd5 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.

llvm-svn: 11885
 2004-02-26 22:55:11 +00:00
John Criswell feb7c49ce4 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.

llvm-svn: 11884
 2004-02-26 22:20:58 +00:00
Chris Lattner 5ef1638da2 Be a good little compiler and handle direct calls efficiently, even if there 
are beastly ConstantPointerRefs in the way...

llvm-svn: 11883
 2004-02-26 22:07:22 +00:00
Alkis Evlogimenos 61719d48d2 Uncomment assertions that register# != 0 on calls to 
MRegisterInfo::is{Physical,Virtual}Register. Apply appropriate fixes
to relevant files.

llvm-svn: 11882
 2004-02-26 22:00:20 +00:00
John Criswell 44cf9fadcb Modified the default pathname for Povray. 
llvm-svn: 11881
 2004-02-26 20:22:59 +00:00
Chris Lattner 79636d7cd5 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

llvm-svn: 11879
 2004-02-26 20:02:23 +00:00
Chris Lattner a990863851 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... :)

llvm-svn: 11878
 2004-02-26 08:08:38 +00:00
Chris Lattner 19cfc40ce0 add note 
llvm-svn: 11876
 2004-02-26 08:02:57 +00:00
Chris Lattner 7140e4696a Use a map instead of annotations 
llvm-svn: 11875
 2004-02-26 08:02:17 +00:00
Chris Lattner e495e774b7 Make TargetData no longer use annotations! 
llvm-svn: 11874
 2004-02-26 08:01:57 +00:00
Chris Lattner 526a80ec25 Eliminate copy-and-paste comments 
llvm-svn: 11873
 2004-02-26 08:01:30 +00:00
Chris Lattner 234a2d4f19 remove obsolete comment 
llvm-svn: 11872
 2004-02-26 07:59:22 +00:00
Chris Lattner 120035898b 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.

llvm-svn: 11871
 2004-02-26 07:24:18 +00:00
Chris Lattner 21e941fbfd 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.

llvm-svn: 11870
 2004-02-26 07:13:46 +00:00
Chris Lattner 28a0885929 No need to clear the map here, it will always be empty 
llvm-svn: 11868
 2004-02-26 05:21:21 +00:00
Chris Lattner 5e39cf9fbd Fix a bug in the densemap that was killing the local allocator, and probably 
other clients.  The problem is that the nullVal member was left to the default
constructor to initialize, which for int's does nothing (ie, leaves it unspecified).

To get a zero value, we must use T().  It's C++ wonderful? :)

llvm-svn: 11867
 2004-02-26 05:00:15 +00:00
Alkis Evlogimenos e008a4b28f Remove .micro references as those files no longer exist and add some more recent Makefile additions to the list 
llvm-svn: 11866
 2004-02-26 04:14:10 +00:00
Chris Lattner 973556b724 Fix typeo. grow() cannot shrink storage. clear() should really nuke storage 
llvm-svn: 11865
 2004-02-26 04:07:12 +00:00
Chris Lattner 36ab728fe5 Fix typo 
llvm-svn: 11864
 2004-02-26 03:45:03 +00:00
Chris Lattner 128e84197b The node doesn't have to be _no_ node flags, it just has to be complete and 
not have any globals.

llvm-svn: 11863
 2004-02-26 03:43:43 +00:00
Chris Lattner c8167b0e7e Add _more_ functions 
llvm-svn: 11862
 2004-02-26 03:43:08 +00:00
Chris Lattner 73687be9d7 We have this snazzy link-time optimizer. How about we start using it? This 
removes some cruft from 255.vortex, cleaning up after DAE and IPCP, which
do horrible, beautiful, things to vortex.

llvm-svn: 11861
 2004-02-26 03:34:30 +00:00
Chris Lattner 9192bbdad9 Fix some warnings, some of which were spurious, and some of which were real 
bugs.  Thanks Brian!

llvm-svn: 11859
 2004-02-26 01:20:02 +00:00
Misha Brukman 1743c4090d Instructions to call and return from functions. 
llvm-svn: 11858
 2004-02-26 00:37:12 +00:00
Brian Gaeke 11331e5d59 One B00g fixed. 
llvm-svn: 11857
 2004-02-26 00:08:25 +00:00
Alkis Evlogimenos 802cf52b91 Temporarily comment out asserts as they break things. I will uncomment 
them when all the problem areas are fixed.

llvm-svn: 11855
 2004-02-25 23:56:36 +00:00
Alkis Evlogimenos 19aaae3f3b Fix typo. I wonder how this actually worked. 
llvm-svn: 11854
 2004-02-25 23:47:17 +00:00
Alkis Evlogimenos 2cf83d3401 Complete the SPEC_ROOT and USE_SPEC to SPEC2000_ROOT and USE_SPEC200 rename. 
llvm-svn: 11853
 2004-02-25 23:41:32 +00:00
Chris Lattner 71626b8f36 Two changes: 
1. Functions do not make things incomplete, only variables
 2. Constant global variables no longer need to be marked incomplete, because
    we are guaranteed that the initializer for the global will be in the
    graph we are hacking on now.  This makes resolution of indirect calls happen
    a lot more in the bu pass, supports things like vtables and the C counterparts
    (giant constant arrays of function pointers), etc...

Testcase here: test/Regression/Analysis/DSGraph/constant_globals.ll

llvm-svn: 11852
 2004-02-25 23:36:08 +00:00
Chris Lattner fc0912d02a New testcase 
llvm-svn: 11851
 2004-02-25 23:34:04 +00:00
Chris Lattner fab2872b6c When building local graphs, clone the initializer for constant globals into each 
local graph that uses the global.

llvm-svn: 11850
 2004-02-25 23:31:02 +00:00
Alkis Evlogimenos e62ddd405d Fix bugs found with recent addition of assertions in 
MRegisterInfo::is{Physical,Virtual}Register.

llvm-svn: 11849
 2004-02-25 23:21:52 +00:00
Chris Lattner 6ce59b4a03 Simplify the dead node elimination stuff 
Make the incompleteness marker faster by looping directly over the globals
instead of over the scalars to find the globals

Fix a bug where we didn't mark a global incomplete if it didn't have any
outgoing edges.  This wouldn't break any current clients but is still wrong.

llvm-svn: 11848
 2004-02-25 23:08:00 +00:00
Chris Lattner 5e5e060618 Add a bunch more functions 
llvm-svn: 11847
 2004-02-25 23:06:40 +00:00
Chris Lattner 17bce88100 Try harder to get symbol info 
llvm-svn: 11846
 2004-02-25 23:06:30 +00:00
Brian Gaeke 7b4be13f94 Represent va_list in interpreter as a (ec-stack-depth . var-arg-index) 
pair, and look up varargs in the execution stack every time, instead of
just pushing iterators (which can be invalidated during callFunction())
around.  (union GenericValue now has a "pair of uints" member, to support
this mechanism.) Fixes Bug 234.

llvm-svn: 11845
 2004-02-25 23:01:48 +00:00
Brian Gaeke 84b76c9be0 Great sparc renaming fallout IV: Sparc --> SparcV9. 
llvm-svn: 11844
 2004-02-25 22:09:36 +00:00
Alkis Evlogimenos ae54cfc19f Duh, forgot to close the parenthesis. 
llvm-svn: 11843
 2004-02-25 22:07:14 +00:00
Alkis Evlogimenos cb69f50cb5 Add assert to isPhysicalRegister and isVirtualRegister to fail when 
passed the special 'register' 0.

llvm-svn: 11842
 2004-02-25 22:04:28 +00:00
Alkis Evlogimenos a9f03fba9d Remove asssert since it is breaking cases that it shouldn't. 
llvm-svn: 11841
 2004-02-25 22:01:06 +00:00
Alkis Evlogimenos d8bace7f60 Add DenseMap template and actually use it for for mapping virtual regs 
to objects.

llvm-svn: 11840
 2004-02-25 21:55:45 +00:00
Chris Lattner b66a35ef9c Add a new pass, run internalize first 
llvm-svn: 11839
 2004-02-25 21:35:13 +00:00