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1505 Commits

Author SHA1 Message Date
Reid Spencer 539429d9b5 Delete a no-op loop. 
llvm-svn: 14965
 2004-07-18 08:32:43 +00:00
Reid Spencer 6c2b627e23 Expand the scope to include global values because they are now constants 
too.

llvm-svn: 14964
 2004-07-18 08:32:10 +00:00
Reid Spencer 199aeb7f59 Avoid an unnecessary isa<Constant>. 
llvm-svn: 14963
 2004-07-18 08:31:18 +00:00
Chris Lattner 9238d78dc3 Remove useless statistic, fix some slightly broken logic 
llvm-svn: 14958
 2004-07-18 07:22:58 +00:00
Chris Lattner 2da5eee33c Fix a rather serious bug in previous checkin 
llvm-svn: 14957
 2004-07-18 06:56:58 +00:00
Reid Spencer cb3fb5d4f5 bug 122: 
- Replace ConstantPointerRef usage with GlobalValue usage

llvm-svn: 14953
 2004-07-18 00:44:37 +00:00
Reid Spencer 874368790f bug 122: 
- Replace ConstantPointerRef usage with GlobalValue usage
- Minimize redundant isa<GlobalValue> usage
- Correct isa<Constant> for GlobalValue subclass

llvm-svn: 14950
 2004-07-18 00:38:32 +00:00
Reid Spencer ef784f01dd bug 122: 
- Minimize redundant isa<GlobalValue> usage

llvm-svn: 14948
 2004-07-18 00:32:14 +00:00
Reid Spencer c5afc9512b bug 122: 
- Replace ConstantPointerRef usage with GlobalValue usage
- Correct isa<Constant> for GlobalValue subclass

llvm-svn: 14947
 2004-07-18 00:31:05 +00:00
Reid Spencer 9e855c6832 bug 122: 
- Minimize redundant isa<GlobalValue> usage
- Correct isa<Constant> for GlobalValue subclass

llvm-svn: 14946
 2004-07-18 00:29:57 +00:00
Reid Spencer 5f6815980b bug 122: 
- Replace ConstantPointerRef usage with GlobalValue usage
- Rename methods to get ride of ConstantPointerRef usage

llvm-svn: 14945
 2004-07-18 00:25:04 +00:00
Reid Spencer 83cae64faf bug 122: 
- Excise dead CPR procesing.

llvm-svn: 14944
 2004-07-18 00:23:51 +00:00
Reid Spencer e4de22874e bug 122: 
- Replace ConstantPointerRef usage with GlobalValue usage
- Correct test ordering for GlobalValue subclass

llvm-svn: 14943
 2004-07-18 00:19:45 +00:00
Chris Lattner d79334df33 This patch was contributed by Daniel Berlin! 
Speed up SCCP substantially by processing overdefined values quickly.  This
patch speeds up SCCP by about 30-40% on large testcases.

llvm-svn: 14861
 2004-07-15 23:36:43 +00:00
Chris Lattner f2c018c0c1 Fix PR404 try #2 
This version takes about 1s longer than the previous one (down to 2.35s),
but on the positive side, it actually works :)

llvm-svn: 14856
 2004-07-15 08:20:22 +00:00
Chris Lattner daa12135da Revert previous patch until I get a bug fixed 
llvm-svn: 14853
 2004-07-15 05:36:31 +00:00
Chris Lattner 70177e402d Fix PR404: Loop simplify is really slow on 252.eon 
This eliminates an N*N*logN algorithm from the loop simplify pass, replacing
it with a much simpler and faster alternative.  In a debug build, this reduces
gccas time on eon from 85s to 42s.

llvm-svn: 14851
 2004-07-15 04:27:04 +00:00
Chris Lattner 32c518e526 Progress on PR341 
llvm-svn: 14840
 2004-07-15 02:06:12 +00:00
Chris Lattner 9a63520b1a Fixes working towards PR341 
llvm-svn: 14839
 2004-07-15 01:50:47 +00:00
Chris Lattner ba7aef39fd Now that we codegen the portable "sizeof" efficiently, we can use it for 
malloc lowering.  This means that lowerallocations doesn't need targetdata
anymore.  yaay.

llvm-svn: 14835
 2004-07-15 01:08:08 +00:00
Chris Lattner 35e24774eb Factor some code to handle "load (constantexpr cast foo)" just like 
"load (cast foo)".  This allows us to compile C++ code like this:

class Bclass {
  public: virtual int operator()() { return 666; }
};

class Dclass: public Bclass {
  public: virtual int operator()() { return 667; }
} ;

int main(int argc, char** argv) {
  Dclass x;
  return x();
}

Into this:

int %main(int %argc, sbyte** %argv) {
entry:
        call void %__main( )
        ret int 667
}

Instead of this:

int %main(int %argc, sbyte** %argv) {
entry:
        %x = alloca "struct.std::bad_typeid"            ; <"struct.std::bad_typeid"*> [#uses=3]
        call void %__main( )
        %tmp.1.i.i = getelementptr "struct.std::bad_typeid"* %x, uint 0, uint 0, uint 0         ; <int (...)***> [#uses=1]
        store int (...)** getelementptr ([3 x int (...)*]*  %vtable for Bclass, int 0, long 2), int (...)*** %tmp.1.i.i
        %tmp.3.i = getelementptr "struct.std::bad_typeid"* %x, int 0, uint 0, uint 0            ; <int (...)***> [#uses=1]
        store int (...)** getelementptr ([3 x int (...)*]*  %vtable for Dclass, int 0, long 2), int (...)*** %tmp.3.i
        %tmp.5 = load int ("struct.std::bad_typeid"*)** cast (int (...)** getelementptr ([3 x int (...)*]*  %vtable for Dclass, int 0, long 2) to int
("struct.std::bad_typeid"*)**)          ; <int ("struct.std::bad_typeid"*)*> [#uses=1]
        %tmp.6 = call int %tmp.5( "struct.std::bad_typeid"* %x )                ; <int> [#uses=1]
	ret int %tmp.6
        ret int 0
}

In order words, we now resolve the virtual function call.

llvm-svn: 14783
 2004-07-13 01:49:43 +00:00
Chris Lattner 9eb9ccd9f6 Check to make sure types are sized before calling getTypeSize on them. 
llvm-svn: 14649
 2004-07-06 19:28:42 +00:00
Brian Gaeke a501be556f It doesn't matter what the 2nd operand is; if the GEP has 2 operands and 
the first is a zero, we should leave it alone.

llvm-svn: 14648
 2004-07-06 19:24:47 +00:00
Brian Gaeke 0e0fe8a2e9 Add helper function. 
Don't touch GEPs for which DecomposeArrayRef is not going to do anything
special (e.g., < 2 indices, or 2 indices and the last one is a constant.)

llvm-svn: 14647
 2004-07-06 18:15:39 +00:00
Chris Lattner 23b47b6af9 Implement rem.ll:test3 
llvm-svn: 14640
 2004-07-06 07:38:18 +00:00
Chris Lattner 98c6bdf251 Fix a minor bug where we would go into infinite loops on some constants 
llvm-svn: 14638
 2004-07-06 07:11:42 +00:00
Chris Lattner 7fd5f0745a Implement InstCombine/sub.ll:test15: X % -Y === X % Y 
Also, remove X % -1 = 0, because it's not true for unsigneds, and the
signed case is superceeded by this new handling.

llvm-svn: 14637
 2004-07-06 07:01:22 +00:00
Reid Spencer eb04d9bcb4 Add #include <iostream> since Value.h does not #include it any more. 
llvm-svn: 14622
 2004-07-04 12:19:56 +00:00
Chris Lattner 4c9c20af28 Implement add.ll:test22, a common case in MSIL files 
llvm-svn: 14587
 2004-07-03 00:26:11 +00:00
Chris Lattner 49df6cefa5 Do not call getTypeSize on a type that has no size 
llvm-svn: 14584
 2004-07-02 22:55:47 +00:00
Brian Gaeke e1a136fb4b Get rid of a dead variable, and fix a typo in a comment. 
llvm-svn: 14560
 2004-07-02 05:30:01 +00:00
Brian Gaeke 163c87fc32 Make this pass use a more specific debug message than "Processing:". 
llvm-svn: 14541
 2004-07-01 19:27:10 +00:00
Vikram S. Adve 1097ed8467 Restoring this file. 
llvm-svn: 14478
 2004-06-29 14:20:27 +00:00
Chris Lattner 3b11d3b294 Remove unused file 
llvm-svn: 14460
 2004-06-28 00:46:58 +00:00
Chris Lattner 924882f775 These passes are long dead/obsolete. They never worked in the first place 
and are a maintenence burden.  Nuke nuke nuke

llvm-svn: 14457
 2004-06-28 00:44:18 +00:00
Chris Lattner 6e07936ed2 Implement InstCombine/add.ll:test21 
llvm-svn: 14443
 2004-06-27 22:51:36 +00:00
Chris Lattner 7f4222237d New constant expression lowering pass to simplify your instruction selection needs. 
Contributed by Vladimir Prus!

llvm-svn: 14399
 2004-06-25 07:48:09 +00:00
Vikram S. Adve 463556f889 This file is unused, and duplicates functionality in TraceValues.cpp. 
llvm-svn: 14369
 2004-06-24 20:16:22 +00:00
Chris Lattner 7a002d6010 Two fixes. First, stop using the ugly shouldSubstituteIndVar method. 
Second, disable substitution of quadratic addrec expressions to avoid putting
multiplies in loops!

llvm-svn: 14358
 2004-06-24 06:49:18 +00:00
Misha Brukman 49bb82a4b8 Moved to lib/VMCore 
llvm-svn: 14348
 2004-06-23 17:21:17 +00:00
Brian Gaeke 1ea8447089 Use new IsNAN() wrapper. 
llvm-svn: 14340
 2004-06-23 00:25:35 +00:00
Misha Brukman ddc90adca3 File depends on DSA, moved to lib/Analysis/DataStructure 
llvm-svn: 14325
 2004-06-22 18:11:38 +00:00
Chris Lattner f12c4a3d37 *FINALLY* Fix a really nasty nondeterministic bug that has been haunting us 
since May 1st.  In this code, the pred iterator was being invalidated sometimes
causing the wrong entries to be added to PHI nodes.

The fix for this is to defererence and safe the *PI value before we hack on
branch instructions, which changes use/def chains, which SOMETIMES invalidates
the iterator.

llvm-svn: 14278
 2004-06-21 07:19:01 +00:00
Chris Lattner 46f60890a3 Comment out the isnan stuff until we get a proper autoconf test for it 
breaking the build on sparc is not acceptable.

llvm-svn: 14277
 2004-06-21 06:17:21 +00:00
Chris Lattner 1c676f76b6 Make order of argument addition deterministic. In particular, the layout 
of ConstantInt objects in memory used to determine which order arguments
were added in in some cases.

llvm-svn: 14276
 2004-06-21 00:07:58 +00:00
Chris Lattner c9e06336ab Make use of BinaryOperator::create* methods to shrinkify code. 
llvm-svn: 14262
 2004-06-20 05:04:01 +00:00
Chris Lattner 7d30a6c145 Fix the inliner to be deterministic, not letting its output depend on the 
relative location of Function objects in memory.

llvm-svn: 14260
 2004-06-20 04:11:48 +00:00
Chris Lattner 9734fd0980 Add some DEBUG output to the simplifycfg routines 
Fix another non-deterministic behavior, this one should actually speed up the
code though as it was doing silly things.

llvm-svn: 14258
 2004-06-20 01:13:18 +00:00
Chris Lattner 42ad646104 Now that dominator tree children are built in determinstic order, this horrible code 
can go away

llvm-svn: 14254
 2004-06-19 20:23:35 +00:00
Chris Lattner 940b7ba5ad This will hopefully fix a heisenbug that Vladimir Merzliakov is running 
into valiantly trying to compile stuff on freebsd.

llvm-svn: 14251
 2004-06-19 19:01:26 +00:00