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1883 Commits

Author SHA1 Message Date
Chris Lattner
86e5192d95 Remove needless #include 
llvm-svn: 3117
 2002-07-27 05:25:29 +00:00
Chris Lattner
ec2780457d * Standardize how analysis results/passes as printed with the print() virtual 
methods
* Eliminate AnalysisID:  Now it is just a typedef for const PassInfo*
* Simplify how AnalysisID's are initialized
* Eliminate Analysis/Writer.cpp/.h: incorporate printing functionality into
  the analyses themselves.

llvm-svn: 3116
 2002-07-27 01:12:17 +00:00
Chris Lattner
3f47f1065b * Standardize how analysis results/passes as printed with the print() virtual 
methods
* Eliminate AnalysisID:  Now it is just a typedef for const PassInfo*
* Simplify how AnalysisID's are initialized
* Eliminate Analysis/Writer.cpp/.h: incorporate printing functionality into
  the analyses themselves.

llvm-svn: 3115
 2002-07-27 01:12:15 +00:00
Chris Lattner
7a9eb848cd * Add support for different "PassType's" 
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
  are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Add support for different "PassType's"
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
  are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Remove getPassName implementations from various subclasses

llvm-svn: 3113
 2002-07-26 21:12:46 +00:00
Chris Lattner
b934722f1b * Add support for different "PassType's" 
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
  are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Add support for different "PassType's"
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
  are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Remove getPassName implementations from various subclasses

llvm-svn: 3112
 2002-07-26 21:12:44 +00:00
Chris Lattner
ec1a192b16 *** empty log message *** 
llvm-svn: 3105
 2002-07-26 18:40:14 +00:00
Chris Lattner
32f5f52f92 Fix typeo that caused bug: 
test/Regression/Assembler/2002-07-25-ReturnPtrFunction.llx

llvm-svn: 3103
 2002-07-25 20:58:51 +00:00
Chris Lattner
789adc9192 Add check to fix bug: 
test/Regression/Assembler/2002-07-25-ParserAssertionFailure.llx

llvm-svn: 3101
 2002-07-25 20:52:56 +00:00
Chris Lattner
2aa4420d83 Fix bug: test/Regression/Assembler/2002-07-25-QuoteInString.llx 
llvm-svn: 3099
 2002-07-25 20:32:37 +00:00
Chris Lattner
d84989b112 *** empty log message *** 
llvm-svn: 3097
 2002-07-25 19:59:41 +00:00
Chris Lattner
9da0755dd0 Refix stuff for GCC 2.95, 3.0.4 & 3.1 
llvm-svn: 3094
 2002-07-25 18:04:48 +00:00
Chris Lattner
f4d892dffb Fix gcc 3.1 complaint 
llvm-svn: 3091
 2002-07-25 17:37:05 +00:00
Mehwish Nagda
4968d78ef0 now removes deleted nops from MachineCodeForInstruction 
llvm-svn: 3090
 2002-07-25 17:31:05 +00:00
Mehwish Nagda
07aeba2eb9 changed implementation of LLVM BYTECODE Length 
llvm-svn: 3089
 2002-07-25 17:22:48 +00:00
Chris Lattner
0d3708d9dc Avoid warning message 
llvm-svn: 3085
 2002-07-25 16:30:45 +00:00
Chris Lattner
469e4fc557 Break line to fit 80 columns 
llvm-svn: 3083
 2002-07-25 15:40:04 +00:00
Chris Lattner
236035cb2f Avoid warning: control reaches end of non-void function 
llvm-svn: 3081
 2002-07-25 15:39:05 +00:00
Chris Lattner
05fe67c0d2 *** empty log message *** 
llvm-svn: 3075
 2002-07-25 06:17:51 +00:00
Chris Lattner
575bbe9f08 GCC 3.1 changes 
llvm-svn: 3074
 2002-07-25 06:17:42 +00:00
Chris Lattner
49ed01e60d GCC 3.1 changes, finally the burm file builds the FIRST time a clean directory is built. 
llvm-svn: 3073
 2002-07-25 06:08:32 +00:00
Chris Lattner
0702eb18e6 *** empty log message *** 
llvm-svn: 3072
 2002-07-24 22:40:39 +00:00
Chris Lattner
2d2b8b4aee GCC 3.1 changes 
llvm-svn: 3071
 2002-07-24 22:40:36 +00:00
Chris Lattner
57095bb78c *** empty log message *** 
llvm-svn: 3069
 2002-07-24 22:33:53 +00:00
Chris Lattner
f155fe7c7b Changes for GCC 3.1 
llvm-svn: 3068
 2002-07-24 22:33:50 +00:00
Chris Lattner
5f11498859 *** empty log message *** 
llvm-svn: 3065
 2002-07-24 22:08:53 +00:00
Chris Lattner
5d262d3846 *** empty log message *** 
llvm-svn: 3058
 2002-07-24 21:21:33 +00:00
Chris Lattner
ad8fc4ba3e Non-standard hash classes are not in the std:: namespace 
llvm-svn: 3057
 2002-07-24 21:21:33 +00:00
Chris Lattner
9860e64083 *** empty log message *** 
llvm-svn: 3056
 2002-07-24 21:21:32 +00:00
Chris Lattner
2cc5c6616e Fix problem that GCC3.1 doesn't like. 
llvm-svn: 3050
 2002-07-24 20:17:22 +00:00
Chris Lattner
b0e9d1b80c Fix a bug exposed by lli 
llvm-svn: 3049
 2002-07-24 20:15:13 +00:00
Chris Lattner
4a9e674077 Eliminate several include/llvm/Transforms/IPO/*.h files, moving their contents into IPO.h 
llvm-svn: 3043
 2002-07-24 17:12:05 +00:00
Chris Lattner
921e366a5c Merge ChangeAllocations into scalar.h 
llvm-svn: 3038
 2002-07-23 22:04:17 +00:00
Chris Lattner
176a67ce61 Rename header 
llvm-svn: 3037
 2002-07-23 22:04:02 +00:00
Chris Lattner
46077f4e0f Cleanup and simplify code 
llvm-svn: 3036
 2002-07-23 22:03:41 +00:00
Chris Lattner
ac78173ee0 Incorporate ConstantMerge.h into IPO.h 
llvm-svn: 3035
 2002-07-23 19:57:40 +00:00
Chris Lattner
38adabd0a1 Rename LevelChange.h to RaisePointerReferences.h 
llvm-svn: 3034
 2002-07-23 19:57:08 +00:00
Chris Lattner
071b32361f Register the WriteBytecodePass 
llvm-svn: 3033
 2002-07-23 19:56:44 +00:00
Chris Lattner
f6ee6b24da Register Verifier pass 
llvm-svn: 3019
 2002-07-23 18:08:17 +00:00
Chris Lattner
5bd073503d Add support for pass registration 
llvm-svn: 3018
 2002-07-23 18:08:00 +00:00
Chris Lattner
cc707df01a Register Writer passes 
llvm-svn: 3017
 2002-07-23 18:07:49 +00:00
Chris Lattner
c482880f9e *** empty log message *** 
llvm-svn: 3016
 2002-07-23 18:06:35 +00:00
Chris Lattner
606421d005 * Remove getPassName implementation 
* Register all Passes

llvm-svn: 3015
 2002-07-23 18:06:30 +00:00
Chris Lattner
17d972ce72 * Cleanup the pass a bit more, making it more object oriented. 
* Split the two behaviors of the InsertTraceCode class into two subclasses
* Register Passes

llvm-svn: 3014
 2002-07-23 18:04:15 +00:00
Chris Lattner
670d7d06fe * Break the two different behaviors of SimpleStructMutation into two subclasses 
* Register the passes

llvm-svn: 3013
 2002-07-23 18:03:11 +00:00
Chris Lattner
b059058c80 * Make the ctor take a TargetData even though it's not using it yet 
* Register the pass

llvm-svn: 3012
 2002-07-23 18:02:23 +00:00
Chris Lattner
bdb978fa79 * Remove lots of dead stuff 
* Register Pass

llvm-svn: 3011
 2002-07-23 18:01:39 +00:00
Chris Lattner
585a05d786 Initial checkin 
llvm-svn: 3005
 2002-07-23 17:56:53 +00:00
Chris Lattner
24bcbdd155 *** empty log message *** 
llvm-svn: 3002
 2002-07-23 17:52:38 +00:00
Chris Lattner
6dfc54dacc Convert over to new style makefile where libraries by default build .o files 
unless they specify BUILD_ARCHIVE to also build a .a file.

llvm-svn: 3001
 2002-07-23 17:52:24 +00:00
Chris Lattner
d39f1f6b60 *** empty log message *** 
llvm-svn: 2999
 2002-07-23 17:15:12 +00:00
Mehwish Nagda
7311aa4f84 moving to the Reoptimizer/Mapping dir 
llvm-svn: 2993
 2002-07-22 22:10:55 +00:00
Mehwish Nagda
e1186e3b90 moved from CodeGen to this dir 
llvm-svn: 2992
 2002-07-22 22:09:35 +00:00
Chris Lattner
748999282f Always create a shadow node for a store instruction, even if it's storing 
a scalar value.  Likewise for load instructions.

llvm-svn: 2990
 2002-07-22 16:35:53 +00:00
Chris Lattner
706b40541e Minor bugfix, prevents error in LLI 
llvm-svn: 2989
 2002-07-22 02:21:57 +00:00
Chris Lattner
4d05cb01b1 Hide extra argument 
llvm-svn: 2986
 2002-07-22 02:17:27 +00:00
Chris Lattner
99ad379582 *** empty log message *** 
llvm-svn: 2985
 2002-07-22 02:10:13 +00:00
Chris Lattner
0a387c1fc3 Convert Command Line option handling code to use the CommandLine 2.0 interface 
llvm-svn: 2983
 2002-07-22 02:08:59 +00:00
Chris Lattner
435788e8c3 Checkin CommandLine 2.0 
llvm-svn: 2982
 2002-07-22 02:07:59 +00:00
Chris Lattner
b646346214 Print the contents, not the pointer... 
llvm-svn: 2981
 2002-07-22 02:06:50 +00:00
Anand Shukla
60f4c16199 comeented out debug printing 
llvm-svn: 2980
 2002-07-21 09:41:18 +00:00
Anand Shukla
e8d6f887b1 Adding code for outputing length in .s 
llvm-svn: 2979
 2002-07-21 09:35:01 +00:00
Mehwish Nagda
78d892eb4f changed size computation 
llvm-svn: 2974
 2002-07-19 22:54:08 +00:00
Chris Lattner
01d2b4702f Ignore some common varargs functions. 
llvm-svn: 2973
 2002-07-19 18:11:43 +00:00
Anand Shukla
4c822342bf minor corrections 
llvm-svn: 2971
 2002-07-18 20:56:47 +00:00
Chris Lattner
5bda0e50a5 * Inline CopyFunctionCallsList 
* Don't clone OrigCallList
* Rename removeDeadNodes -> removeTriviallyDeadNodes
* Implement new removeDeadNodes method

llvm-svn: 2970
 2002-07-18 18:22:40 +00:00
Chris Lattner
556ab513cc Rename removeDeadNodes to removeTriviallyDeadNodes 
llvm-svn: 2969
 2002-07-18 18:19:09 +00:00
Vikram S. Adve
9841c396cf Add support for a top-down propagation pass: 
-- Save a copy of the original call nodes in DSGraph before inlining bottom-up.
-- Also, save a list of the callers of each function in DSGraph.

llvm-svn: 2966
 2002-07-18 16:13:52 +00:00
Vikram S. Adve
a6647796e3 Add support for a top-down propagation pass. 
Each DSGraph now keeps a list of pending callers that have not
been inlined into the function represented by that graph.
It also keeps a copy of the original call nodes before the BU pass
eliminates some of them.

llvm-svn: 2965
 2002-07-18 16:12:08 +00:00
Chris Lattner
da58a2a5ed Implement cast nodes correctly. 
llvm-svn: 2964
 2002-07-18 15:54:42 +00:00
Chris Lattner
c459d57fe3 Seperate stats for DCE'd functions and vars 
llvm-svn: 2961
 2002-07-18 06:40:04 +00:00
Chris Lattner
7a35632ace * Code cleanups 
* Fix a REALLY misleading error message

llvm-svn: 2960
 2002-07-18 05:18:37 +00:00
Chris Lattner
13b8b7c8fe *** empty log message *** 
llvm-svn: 2959
 2002-07-18 04:43:20 +00:00
Chris Lattner
c6bae5e19e * s/method/function 
llvm-svn: 2958
 2002-07-18 04:43:16 +00:00
Chris Lattner
1abd637044 Only functions with external linkage can be resolved to function declarations. 
This change fixes programs that have multiple functions named the same thing,
where are least one of them is static/internal.

llvm-svn: 2954
 2002-07-18 03:01:24 +00:00
Chris Lattner
d703fa0041 * Rewrite loop to be slightly more efficient (arguably) 
* Fix a MAJOR thinko that was causing bad links to happen on Spec

llvm-svn: 2953
 2002-07-18 02:31:03 +00:00
Chris Lattner
1cdccbde31 The graph is more accurate when I don't completely ignore the return value. 
llvm-svn: 2952
 2002-07-18 01:58:24 +00:00
Chris Lattner
3710b0d6d1 * Correctly get prototype for void*malloc(size_t) 
llvm-svn: 2951
 2002-07-18 00:18:01 +00:00
Chris Lattner
6be9ee3029 * ConstExpr::getelementptr now takes a vector of Constants not Values 
* Assert things instead of printing an error and returning null.

llvm-svn: 2949
 2002-07-18 00:14:50 +00:00
Chris Lattner
3f60c43a80 ConstExpr::getelementptr now takes a vector of Constants not Values 
llvm-svn: 2948
 2002-07-18 00:14:27 +00:00
Chris Lattner
9b1f5682b5 Add a hack to check for a subset of true dominance properties 
llvm-svn: 2947
 2002-07-18 00:13:42 +00:00
Chris Lattner
b121676038 Implement linking of ConstExprs 
llvm-svn: 2946
 2002-07-18 00:13:08 +00:00
Chris Lattner
9c49e62315 Lots of bug fixes, add BottomUpClosure, which has bugs, but is a start. 
llvm-svn: 2945
 2002-07-18 00:12:30 +00:00
Mehwish Nagda
219eac01f4 added check for Function with 0 BB 
llvm-svn: 2942
 2002-07-17 23:40:33 +00:00
Chris Lattner
d842f9ff2d Anand forgot to check in the makefile corresponding to his previous change 
which eliminated the EmitFunctions directory

llvm-svn: 2937
 2002-07-17 17:13:01 +00:00
Chris Lattner
20c6eeb1e2 * Remove dead code from ExprTypeConvert.cpp 
- I->use_empty() can never be true because of the IHolder's
* Fix bug: test/Regression/Transforms/LevelRaise/2002-07-16-SourceAndDestCrash.ll
   - Add a new NewCasts member to VMC to keep track of casts that have been
     created and to ensure there is always a reference to the cast.
   - Extend ValueHandle a bit so it can be used in an STL container
   - Make sure we destroy the ValueMapCache before verifying the function
     in LevelRaise.cpp

llvm-svn: 2936
 2002-07-17 17:11:33 +00:00
Chris Lattner
85a9f9c4b3 * Add a bunch of debugging features to LevelRaise 
- Verify the function every time it is exprconverted if DEBUG is on
  - Provide a way to start exprconversion AT a specific instruction.

llvm-svn: 2934
 2002-07-16 23:49:24 +00:00
Chris Lattner
ee9a9d8017 Avoid !sized assertion failure if Ty is not a sized type 
llvm-svn: 2933
 2002-07-16 22:29:37 +00:00
Chris Lattner
a221573dba Fix bug: test/Regression/Transforms/LevelRaise/2002-07-16-RaiseCrash2.ll 
llvm-svn: 2932
 2002-07-16 21:41:31 +00:00
Anand Shukla
4bb7a17266 Moved over EmitFunctions to this library 
llvm-svn: 2928
 2002-07-16 18:58:08 +00:00
Anand Shukla
4da4e0ba0a removed this directory 
llvm-svn: 2927
 2002-07-16 18:56:29 +00:00
Anand Shukla
03970aa8bf Moved EmitFunctions.cpp up to instrumentation directory 
llvm-svn: 2926
 2002-07-16 18:55:55 +00:00
Chris Lattner
a01e139a76 * Make global variables with external linkage get emitted correctly 
* Do NOT add a prefix to global variables that are external
* Add newline after emitting a constpointerref

llvm-svn: 2925
 2002-07-16 18:35:16 +00:00
Chris Lattner
22958b2e75 Bugfix to previous checkin 
llvm-svn: 2924
 2002-07-16 18:12:55 +00:00
Mehwish Nagda
01b0cf5ea1 Now will profile all Basic Blocks 
llvm-svn: 2922
 2002-07-16 17:48:27 +00:00
Chris Lattner
0be1cc0f00 * Cleanup pass 
* The global variable cannot be internal or else we cannot use it!
* Always add a function to the table, even if it only has a single basic
  block.

llvm-svn: 2921
 2002-07-16 17:42:54 +00:00
Chris Lattner
43cfac7e68 * Add assertion to ExprTypeConvert to detect error earlier than without it 
* Fix bug in LevelRaise.cpp, correcting this problem:
    test/Regression/Transforms/LevelRaise/2002-07-16-RaiseCrash.ll

llvm-svn: 2920
 2002-07-16 17:33:13 +00:00
Anand Shukla
14f0ab662d added std:: to pair 
llvm-svn: 2917
 2002-07-16 00:04:57 +00:00
Anand Shukla
c01ca9bfd4 added std:: to vector 
llvm-svn: 2916
 2002-07-16 00:04:15 +00:00
Anand Shukla
1c8b99ff5a added std:: to string 
llvm-svn: 2915
 2002-07-16 00:03:10 +00:00
Anand Shukla
a8a95f234b added std:: to cerr and endl 
llvm-svn: 2914
 2002-07-16 00:02:17 +00:00
Mehwish Nagda
131db97ea3 Added the Mapping Pass to out put Mapping Info to .s file 
llvm-svn: 2913
 2002-07-15 23:58:21 +00:00
Mehwish Nagda
b73d836e54 Initial checking : Writes LLVM - MI mappiing to the .s file 
llvm-svn: 2911
 2002-07-15 23:08:49 +00:00
Vikram S. Adve
45eeb8e738 Ensure ConstExpr constants are unique using a 
map of <opcode, operands> to ConstExpr.

llvm-svn: 2909
 2002-07-15 18:19:33 +00:00
Chris Lattner
1b99c09b2c Fix bug: test/Regression/Assembler/2002-07-14-InternalLossage.llx 
llvm-svn: 2907
 2002-07-15 00:10:33 +00:00
Vikram S. Adve
ca1f1c58e1 Added support to write out ConstantExpr nodes. 
Also, avoid asserting out when writing out an invalid tree
since the assembly writer is used when debugging.

llvm-svn: 2902
 2002-07-14 23:14:45 +00:00
Vikram S. Adve
d670638ee6 Added subclass ConstantExpr to represent expressions consructed from 
constants using operators such as cast, getelementptr, add, shl, etc.
Note that a ConstantExpr can be of any type, so classof() in most
other subclasses (that discriminate by type) have to check that it
is also not a ConstantExpr.

llvm-svn: 2901
 2002-07-14 23:13:17 +00:00
Vikram S. Adve
846a1514c8 Create a static version of Instruction::getOpcodeName(opCode) that 
can be invoked with only an opcode (i.e., without an instruction).
Move all opCode->opCodeName translations there.

llvm-svn: 2900
 2002-07-14 23:09:40 +00:00
Vikram S. Adve
e182dd58ae Add support for writing ConstantExpr nodes. 
llvm-svn: 2899
 2002-07-14 23:08:30 +00:00
Vikram S. Adve
155a8ec344 Write out the plane for types first, since values of primitive types 
may be constructed by expressions of other types (and so the
contents of the primitive type planes must come after all types).
Use a helper function outputConstantsInPlane in outputConstants to
do this.

llvm-svn: 2898
 2002-07-14 23:07:51 +00:00
Vikram S. Adve
c5355ed343 Use a helper function outputConstantsInPlane in outputConstants. 
llvm-svn: 2897
 2002-07-14 23:05:53 +00:00
Vikram S. Adve
83551932d4 Add support for reading ConstantExpr nodes. 
Add class ConstantFwdRefs to resolve forward references to constants
and to globals. (Hmm... this class could be renamed I guess.)

llvm-svn: 2896
 2002-07-14 23:05:09 +00:00
Vikram S. Adve
81fee7fa10 Add support for reading ConstantExpr nodes. 
Add class ConstantFwdRefs to resolve forward references to constants
and to globals (unified old code for globals into this).

llvm-svn: 2895
 2002-07-14 23:04:18 +00:00
Vikram S. Adve
01595dd6af Added support for parsing expressions constructed from constant values. 
(Major new non-terminal is ConstExpr.)

Add YYERROR_VERBOSE and print additional information on errors.

llvm-svn: 2894
 2002-07-14 22:59:28 +00:00
Vikram S. Adve
f2d95b3976 Declare globals llvmAsmtext and llvmAsmleng for use in the parser. 
llvm-svn: 2893
 2002-07-14 22:49:40 +00:00
Anand Shukla
a10f139779 Added EmitFunctions directory 
llvm-svn: 2883
 2002-07-12 20:12:07 +00:00
Anand Shukla
d4dae682bc Initial makefile 
llvm-svn: 2882
 2002-07-12 20:11:24 +00:00
Anand Shukla
edba9ad8a9 Initial version: adds a function table to output code 
llvm-svn: 2881
 2002-07-12 20:10:50 +00:00
Chris Lattner
f528333ecf * Pass the DSGraph around instead of the Function to printing fns 
* Print the globals list in the node
* Print the scalars in the scalar node
* Eliminate Scalar "label" edges in the graph
* Print fake edges lighter instead of dotted

llvm-svn: 2880
 2002-07-11 20:33:32 +00:00
Chris Lattner
61d394e66f * Nodes now keep track of any global variables in them 
llvm-svn: 2879
 2002-07-11 20:32:22 +00:00
Chris Lattner
809bd75ead * Nodes now keep track of any global variables in them 
* Only dead-node-eliminate nodes with no flags
* Don't merge scalars, only merge what they point to.

llvm-svn: 2878
 2002-07-11 20:32:02 +00:00
Anand Shukla
d70cde528d added std:: to endl 
llvm-svn: 2875
 2002-07-11 00:17:17 +00:00
Anand Shukla
3d7a9691cc added std:: to vector 
llvm-svn: 2874
 2002-07-11 00:16:28 +00:00
Chris Lattner
5d62e136c5 New implementation of data structure analysis. Only local analysis has been 
implemented so far.

llvm-svn: 2871
 2002-07-10 22:38:08 +00:00
Chris Lattner
83577a047e Disable folding g-e-p instructions into loads and stores. 
llvm-svn: 2870
 2002-07-10 22:37:17 +00:00
Chris Lattner
a6842aa353 Disable pool allocation stuff until data structure analysis is sorted back out 
llvm-svn: 2869
 2002-07-10 22:36:47 +00:00
Chris Lattner
d00a93318e Reimplement data structure analysis 
llvm-svn: 2868
 2002-07-10 22:36:26 +00:00
Vikram S. Adve
cd544ed252 Fix print of BB name in dump(). 
llvm-svn: 2861
 2002-07-10 21:45:30 +00:00
Vikram S. Adve
62f569e4ea Add support for marking each operand as a %hh, %hm, %lm or %lo. 
Represent previous bools and these ones with flags in a single byte
per operand.

llvm-svn: 2860
 2002-07-10 21:45:04 +00:00
Vikram S. Adve
b2fc122acd Changed interface to insertCallerSavingCode(). 
llvm-svn: 2859
 2002-07-10 21:42:42 +00:00
Vikram S. Adve
56ae7788d7 Stop using pseudo-instructions (SETX, SETUW, SETSW) 
and generate actual machine instruction sequences directly.

llvm-svn: 2858
 2002-07-10 21:42:13 +00:00
Vikram S. Adve
268137274b Add support to print %hh, %hm, %lm, or %lo in an operand field. 
llvm-svn: 2857
 2002-07-10 21:41:21 +00:00
Vikram S. Adve
3df324e6e8 Major overhaul to stop using pseudo-instructions (SETX, SETUW, SETSW) 
and generate actual machine instruction sequences directly.

Also a couple of bug fixes in code for putting constants into registers:
-- Do *not* sign-extend unsigned constant that is shorter than int reg size
-- Fix handling of address constant (a GlobalValue) vs. constant that
   must be loaded.

llvm-svn: 2856
 2002-07-10 21:39:50 +00:00
Vikram S. Adve
9d7346bbf9 More important fixes: 
-- FP argument to a function with no prototype going on stack
   was not being copied to the stack in colorCallArgs().
-- Put caller-saving code *before* argument copying code so that
   we don't trash a register before saving it!
-- Two other minor fixes.

llvm-svn: 2855
 2002-07-10 21:36:00 +00:00
Chris Lattner
c27a459095 *** empty log message *** 
llvm-svn: 2852
 2002-07-10 16:48:17 +00:00
Anand Shukla
33b491bba2 changed mem_fun to std::mem_fun 
llvm-svn: 2847
 2002-07-09 19:18:56 +00:00
Anand Shukla
e2179159e5 Added std:: to mem_fun for 64-bit gcc 
llvm-svn: 2845
 2002-07-09 19:16:59 +00:00
Chris Lattner
128410dd4c Implementing shift left & shift right on pointers 
llvm-svn: 2844
 2002-07-09 18:42:36 +00:00
Vikram S. Adve
f5760a424d Added support for printing constant global references to 
assembly.

llvm-svn: 2842
 2002-07-09 12:30:29 +00:00
Vikram S. Adve
c98bc8cd5e Fix iteration and InsertPos bugs introduced when Chris changed over to ilist. 
llvm-svn: 2840
 2002-07-08 23:37:07 +00:00
Vikram S. Adve
901578090d Numerous changes in interface to class SparcRegInfo corresponding to 
changes in class MachineRegInfo (see MachineRegInfo.h for details).

Added {LD,ST}[X]FSR instructions.

llvm-svn: 2839
 2002-07-08 23:34:10 +00:00
Vikram S. Adve
35bc4cb020 class MachineCodeForBasicBlock is now an annotation on BasicBlock. 
llvm-svn: 2838
 2002-07-08 23:31:24 +00:00
Vikram S. Adve
8b06b38495 BA no longer has the unused CC operand. 
llvm-svn: 2837
 2002-07-08 23:30:59 +00:00
Vikram S. Adve
a771830ea1 Have to save a boolean (setCC) value whenever use is outside the current 
basic block.

Mark setCCInstr used as dest. of conditional-move as both a def and a use.

BA instruction no longer has the unused CC argument.

llvm-svn: 2836
 2002-07-08 23:30:14 +00:00
Vikram S. Adve
30cc745aec BA has only one argument. 
Added LDFSR, LDXFSR, STFSR and STXFSR.
Fixed operands info for RDCCR, WRCCR.

llvm-svn: 2835
 2002-07-08 23:25:17 +00:00
Vikram S. Adve
b94ede185c Significant changes to correctly spill CC registers and to correctly 
handle conditional move instructions:
-- cpMem<->Reg functions now support CC registers (int and FP) correctly.
   Also, cpMem<->Reg functions now return a vector of machine instructions.
-- Scratch registers must be explicitly provided to cpMem<->Reg when
   needed, since CC regs need one to be copied to/from memory.
-- CC regs are saved to a scratch register instead of stack.
-- All regs used by a instruction are now recorded in MachineInstr::regsUsed,
   since regs used to save values *across* an instruction are not obvious
   either from the operands or from the LiveVar sets.
-- An (explicit or implicit) operand may now be both a def and a use.
   This is needed for conditional move operations.
   So an operand may need spill code both before and after the instruction.

Other changes:
-- Added several get{Class,Type} functions.
-- Added unified-to-local register number conversion.
-- class MachineCodeForBasicBlock is now an annotation on BasicBlock.
-- Suggest/Color methods may modify the MachineInstr (and always did),
   so don't make that argument const!
-- Caller-saving code doesn't need its special purpose code for
   handling CC registers since cpMem<->Reg handle those correctly now.

llvm-svn: 2834
 2002-07-08 23:23:12 +00:00
Vikram S. Adve
0b32273208 Significant changes to correctly spill CC registers and to correctly 
handle conditional move instructions:
-- cpMem<->Reg functions now support CC registers (int and FP) correctly.
-- Scratch registers must be explicitly provided to cpMem<->Reg when
   needed, since CC regs need one to be copied to/from memory.
-- CC regs are saved to a scratch register instead of stack.
-- All regs used by a instruction are now recorded in MachineInstr::regsUsed,
   since regs used to save values *across* an instruction are not obvious
   either from the operands or from the LiveVar sets.
-- An (explicit or implicit) operand may now be both a def and a use.
   This is needed for conditional move operations.
   So an operand may need spill code both before and after the instruction.
-- class MachineCodeForBasicBlock is now an annotation on BasicBlock.

llvm-svn: 2833
 2002-07-08 23:15:32 +00:00
Vikram S. Adve
a8c7633d5b MachineInstr* in vector are not const (and never really were) 
because operands may be modified directly to set register.
Also, class MachineCodeForBasicBlock is now an annotation on BasicBlock.

llvm-svn: 2832
 2002-07-08 23:07:26 +00:00
Vikram S. Adve
3e8b72f0e3 Rename static struct Initializer to avoid name conflict with BB. 
llvm-svn: 2831
 2002-07-08 23:04:31 +00:00
Vikram S. Adve
25d81936d2 Fix printing of BB in dump. 
llvm-svn: 2830
 2002-07-08 23:03:54 +00:00
Vikram S. Adve
f6d73e9711 Moved class MachineCodeForBasicBlock to MachineCodeForBasicBlock.h. 
This class is now an annotation on BasicBlock.

llvm-svn: 2829
 2002-07-08 23:03:10 +00:00
Vikram S. Adve
5b4c4a9326 MachineInstr::dump() now takes no arguments. 
llvm-svn: 2828
 2002-07-08 23:01:46 +00:00
Vikram S. Adve
a2381d3998 Implementation of class MachineCodeForBasicBlock. 
Moved here from MachineInstr.cpp to make it an annotation on BasicBlock.

llvm-svn: 2827
 2002-07-08 23:01:11 +00:00
Vikram S. Adve
4efbb9c931 A single MachineInstr operand may now be both a def and a use, 
so additional dep. edges have to be added.
This was needed to correctly handle conditional move instructions!
MachineCodeForBasicBlock is now an annotation on BasicBlock.
Renamed "earliestForNode" to "earliestReadyTimeForNode".

llvm-svn: 2826
 2002-07-08 22:59:23 +00:00
Vikram S. Adve
daf9b38ed9 A single MachineInstr operand may now be both a def and a use. 
llvm-svn: 2825
 2002-07-08 22:56:34 +00:00
Vikram S. Adve
58b597078f getUsableUniRegAtMI interface simplified slightly. 
llvm-svn: 2822
 2002-07-08 22:39:36 +00:00
Vikram S. Adve
a110ccca19 Moved class MachineCodeForBasicBlock to MachineCodeForBasicBlock.{cpp,h}. 
An (explicit or implicit) operand may now be both a def and a use.
Also add a set of regs used by each instruction.
dump() no longer takes an optional argument, which doesn't work in gdb.

llvm-svn: 2821
 2002-07-08 22:38:45 +00:00
Vikram S. Adve
d82933c6c8 MachineInstr* in vector are not const (and never really were) 
because operands may be modified directly to set register.

llvm-svn: 2820
 2002-07-08 22:34:40 +00:00
Vikram S. Adve
da5e272403 Moved MachineCodeForBB to be an annotation on BasicBlock. 
llvm-svn: 2818
 2002-07-08 22:31:11 +00:00
Anand Shukla
43bbde3f76 changes BBsorting and oredering 
llvm-svn: 2817
 2002-07-08 19:37:06 +00:00
Anand Shukla
9d38b4b511 small corrections 
llvm-svn: 2816
 2002-07-08 19:36:39 +00:00
Anand Shukla
a5c08b7973 changed function numbering 
llvm-svn: 2815
 2002-07-08 19:36:01 +00:00
Chris Lattner
a590093513 *** empty log message *** 
llvm-svn: 2813
 2002-06-30 16:25:25 +00:00
Chris Lattner
63f4011a0c Clean up anands patch 
llvm-svn: 2812
 2002-06-30 16:25:21 +00:00
Chris Lattner
362a0846af Remove diff-cluttering tags 
llvm-svn: 2808
 2002-06-30 16:12:03 +00:00
Chris Lattner
5339840831 Remove tag that just clutters diffs 
llvm-svn: 2807
 2002-06-30 16:08:25 +00:00
Chris Lattner
aa9a5b5c15 Fix anands changes 
llvm-svn: 2806
 2002-06-30 16:07:20 +00:00
Chris Lattner
ab88b62968 Convert tabs to spaces 
llvm-svn: 2805
 2002-06-30 16:04:37 +00:00
Chris Lattner
c645efd64c Fix anand's last checkin 
llvm-svn: 2804
 2002-06-30 16:01:15 +00:00
Anand Shukla
62f8f85b50 changes for 64bit gcc 
llvm-svn: 2801
 2002-06-25 22:07:38 +00:00
Anand Shukla
5dbf11fc92 added include<iostream> for cerr 
llvm-svn: 2800
 2002-06-25 22:04:00 +00:00
Anand Shukla
0de79ee516 added include<iostream> for cerr 
llvm-svn: 2796
 2002-06-25 21:29:10 +00:00
Anand Shukla
3ab9ffd5b1 changes to make it compatible with 64bit gcc 
llvm-svn: 2795
 2002-06-25 21:18:19 +00:00
Anand Shukla
25f890e009 additions and bug fixes 
llvm-svn: 2794
 2002-06-25 21:14:58 +00:00
Anand Shukla
0908af95f6 added include<iostream> for cerr 
llvm-svn: 2793
 2002-06-25 21:12:25 +00:00
Anand Shukla
85065832f1 changes to make it compatible with 64bit gcc 
llvm-svn: 2792
 2002-06-25 21:07:58 +00:00
Anand Shukla
ee7ed50bb4 changes to make it compatible with 64bit gcc 
llvm-svn: 2791
 2002-06-25 20:55:50 +00:00
Anand Shukla
b35aa2b2e7 changes to make it compatible with 64bit gcc 
llvm-svn: 2790
 2002-06-25 20:44:04 +00:00
Anand Shukla
af8556bf5b changes to make it compatible with 64bit gcc 
llvm-svn: 2789
 2002-06-25 20:35:19 +00:00
Anand Shukla
819239b667 minor change in removing endl 
llvm-svn: 2788
 2002-06-25 20:34:54 +00:00
Chris Lattner
dfd421a7df MEGAPATCH checkin. 
For details, See: docs/2002-06-25-MegaPatchInfo.txt

llvm-svn: 2779
 2002-06-25 16:13:24 +00:00
Chris Lattner
d7cbd7d5d2 MEGAPATCH checkin. 
For details, See: docs/2002-06-25-MegaPatchInfo.txt

llvm-svn: 2778
 2002-06-25 16:13:21 +00:00
Chris Lattner
cee706572b *** empty log message *** 
llvm-svn: 2777
 2002-06-25 16:12:52 +00:00
Chris Lattner
390c338968 * Update with MegaPatch 
* Fix various bugs

llvm-svn: 2774
 2002-06-25 15:57:03 +00:00
Chris Lattner
12075bfedd * Update to work with Megapatch 
* Add two new checks:
  * PHI nodes must be the first thing in a basic block, all grouped together
  * All basic blocks should only end with terminator insts, not contain them

llvm-svn: 2773
 2002-06-25 15:56:27 +00:00
Chris Lattner
8e1476c302 Remove DynamicConstantMerge pass, because it did not fit in with the Pass 
system correctly.

llvm-svn: 2772
 2002-06-25 15:55:29 +00:00
Chris Lattner
ef6daeb534 Remove "fixers" for problems in GCC generated code that cannot be generated 
anymore.

llvm-svn: 2771
 2002-06-25 15:55:03 +00:00
Anand Shukla
92dcd43312 Relocating Graph.h 
llvm-svn: 2770
 2002-06-25 14:28:55 +00:00
Chris Lattner
d3327b19e0 Fix constness 
llvm-svn: 2762
 2002-06-05 18:11:37 +00:00
Chris Lattner
1a37bd9d7e Fix Constness problems 
llvm-svn: 2761
 2002-06-05 18:08:26 +00:00
Chris Lattner
593394bb04 Fix constness problem 
llvm-svn: 2759
 2002-06-05 17:49:40 +00:00
Chris Lattner
8556c1936d Fix constness problems now that the cast operators preserve the constness 
of their argument

llvm-svn: 2758
 2002-06-05 17:38:28 +00:00
Chris Lattner
81e6e7615f * Be more typesafe: cast<x> now no longer discards constness 
* The newly installed version of Bison now really likes there to be ;'s
  after productions.  Add them to avoid tons of warnings.

llvm-svn: 2757
 2002-06-04 21:58:56 +00:00
Chris Lattner
3cd6295cb7 Disable debugging output 
llvm-svn: 2756
 2002-06-04 03:09:57 +00:00
Chris Lattner
27a93b1e90 *** empty log message *** 
llvm-svn: 2755
 2002-06-03 22:10:52 +00:00
Chris Lattner
779f966ce5 Avoid deleting individual instructions until AFTER dead blocks have dropped 
their references.  This fixes bug:
    test/Regression/Transforms/ADCE/2002-05-28-Crash*.ll

llvm-svn: 2753
 2002-05-28 21:38:16 +00:00
Chris Lattner
b95dde758a Simplify the interface to local DCE and Constant prop 
llvm-svn: 2749
 2002-05-26 20:18:18 +00:00
Chris Lattner
365806ddf7 Support opaque type printing a little bit at least 
llvm-svn: 2748
 2002-05-26 20:17:54 +00:00
Chris Lattner
3611a1e91c Do not remove type names that contain a . 
llvm-svn: 2747
 2002-05-26 20:17:35 +00:00
Chris Lattner
d98e784be4 Fix "unimplemented features": 
test/Regression/Transforms/FunctionResolve/retmismatch[12].ll

This makes it much more useful for running benchmarks that are missing
prototypes for some functions.

llvm-svn: 2745
 2002-05-24 21:33:26 +00:00
Chris Lattner
5dc1524174 Split the FunctionResolution pass out of CleanGCCOutput.cpp. 
llvm-svn: 2742
 2002-05-24 20:42:13 +00:00
Chris Lattner
4c766269b7 Fix comments to reflect reality 
llvm-svn: 2741
 2002-05-24 20:41:51 +00:00
Chris Lattner
e69803b06f Support programs that do not #include <malloc.h> or give a full prototype 
for malloc and free.  Lots of crufty benchmarks are using stuff like:
char *malloc();
void free();

to forward declare malloc and free.  Now we recognize and raise these forms

llvm-svn: 2740
 2002-05-24 20:29:18 +00:00
Chris Lattner
9dde5c9df7 Fold add X, 0 for floating point types as well 
llvm-svn: 2734
 2002-05-23 17:11:38 +00:00
Chris Lattner
2cf3917aae Fix bug: test/Regression/Transforms/ADCE/2002-05-23-ZeroArgPHITest.ll 
Which contains a description of why this is neccesary.

llvm-svn: 2733
 2002-05-23 16:52:34 +00:00
Chris Lattner
e61bc07952 Convert RegClass::IsColorUsedArr from a dynamically allocated array to 
a vector.  This makes asserting on array bounds easier.

llvm-svn: 2731
 2002-05-23 15:50:03 +00:00
Chris Lattner
9c56a9e21b Avoid creating the symbol table if we don't need it. 
llvm-svn: 2728
 2002-05-22 22:53:05 +00:00
Chris Lattner
0737f63807 Support function declarations with either %XXX or "XXX" style for now 
"XXX" style should be considered deprecated, and will hopefully be removed
in the future.

llvm-svn: 2727
 2002-05-22 22:33:00 +00:00
Chris Lattner
37107da53e Print out function name with % style instead of "" style 
llvm-svn: 2726
 2002-05-22 22:29:26 +00:00
Chris Lattner
76bf940554 Convert code to use the DEBUG macro so that debug code can simply be 
enabled with the -debug command line option.

llvm-svn: 2721
 2002-05-22 21:56:32 +00:00
Chris Lattner
1f66858791 Fix and implement ADCE to finally work! 
llvm-svn: 2720
 2002-05-22 21:32:16 +00:00
Chris Lattner
d406cb7c9d Convert transforms over to standardize debugging output on -debug option 
llvm-svn: 2714
 2002-05-22 17:27:12 +00:00
Chris Lattner
1f2723a2c9 Use the new DEBUG(x) macro to allow debugging code to be enabled on the commandline 
llvm-svn: 2713
 2002-05-22 17:17:27 +00:00
Chris Lattner
7d0544f0cc Move debug options out of header files so that the header does not have 
to #include CommandLine.h.

llvm-svn: 2712
 2002-05-22 17:08:27 +00:00
Chris Lattner
5907666379 Move the DEBUG_LV option out of the public header file into a private header. 
llvm-svn: 2711
 2002-05-22 17:07:26 +00:00
Chris Lattner
07732a38b7 Avoid #including CommandLine.h 
llvm-svn: 2710
 2002-05-22 17:06:56 +00:00
Chris Lattner
7f8f0b5863 Implement a new command line option, -debug, which is meant to unify all of 
the random debugging macros scattered throughout llvm.

The new DEBUG(x) macro should be used instead of special purpose debug macros.

llvm-svn: 2709
 2002-05-22 17:06:20 +00:00
Chris Lattner
555163a0ab Add ability to update existing variables with values read from the command line 
to certain classes.  This is nice because it means that in header files we can
just declare a value, and still have that value be set based on a command-line
argument.  The difference is now that the #include of CommandLine.h does not
need to go into the header file as well.

llvm-svn: 2708
 2002-05-22 17:03:05 +00:00
Chris Lattner
245c8615e4 Fix bug: test/Regression/Transforms/SCCP/2002-05-21-InvalidSimplify.ll 
Improperly handling edges... by not marking them alive properly

llvm-svn: 2707
 2002-05-22 16:07:20 +00:00
Chris Lattner
4864c06550 * Fix typeo 
* Provide a #include of <malloc.h> so that the sun C compiler does not
  miscompile malloc function calls

llvm-svn: 2702
 2002-05-21 21:10:04 +00:00
Chris Lattner
e7ce749d63 Add implementation of SimplifyCFG 
llvm-svn: 2701
 2002-05-21 20:50:24 +00:00
Chris Lattner
bb7416fa7f New CFG Simplification pass: removed from the old DCE pass 
llvm-svn: 2700
 2002-05-21 20:49:37 +00:00
Chris Lattner
4b29ff417d Simplify interface to ConstantFoldTerminator 
llvm-svn: 2697
 2002-05-21 20:04:50 +00:00
Chris Lattner
e628d8b2b9 Fix bug: test/Regression/Transforms/CFGSimplify/2002-05-21-PHIElimination.ll 
llvm-svn: 2694
 2002-05-21 19:52:49 +00:00
Chris Lattner
b82857d705 Fix bug: test/Regression/CBackend/2002-05-21-MissingReturn.ll 
llvm-svn: 2690
 2002-05-21 18:05:19 +00:00
Mehwish Nagda
54a7cdf7e9 Fixed the makefile to not die when compiling a new, empty, source directory 
llvm-svn: 2688
 2002-05-21 15:58:24 +00:00
Chris Lattner
c7e2f5bbd7 * Change commandline options a bit to be nicer 
* Insert accurate prototypes for functions
* Insert casts to use accurate prototypes

llvm-svn: 2677
 2002-05-20 21:43:59 +00:00
Chris Lattner
1752fa9899 Hide debugging options 
llvm-svn: 2676
 2002-05-20 21:39:10 +00:00
Chris Lattner
7d07dffa5f Remove explicit support for tracing code. It should be linked into the 
executable just like everything else.

llvm-svn: 2674
 2002-05-20 21:17:16 +00:00
Chris Lattner
7563f3d1fb Remove tracing code hack 
llvm-svn: 2673
 2002-05-20 21:16:46 +00:00
Chris Lattner
c3d944c4f7 Fix bug: test/Regression/Transforms/SCCP/2002-05-20-MissedIncomingValue.ll 
That was causing a miscompilation of strtol/atoi plus others

llvm-svn: 2669
 2002-05-20 20:48:03 +00:00
Chris Lattner
0cfea31aee Don't lose namespace qualifications on previous patch. 
llvm-svn: 2664
 2002-05-20 17:38:26 +00:00
Chris Lattner
db193d32ca Rename IsPowerOf2 to isPowerOf2 
llvm-svn: 2663
 2002-05-19 21:20:19 +00:00
Vikram S. Adve
db5bc3b4a2 Link with test/Libraries/libinstr32.a for runtime routines 
supporting tracing.  That should be moved to a "runtime" directory.

llvm-svn: 2660
 2002-05-19 16:00:28 +00:00
Vikram S. Adve
02f9033264 Added external functions for hashing pointers to sequence numbers. 
llvm-svn: 2659
 2002-05-19 15:59:25 +00:00
Vikram S. Adve
21ed1be093 InstrnsBefore and InstrnsAfter are now vectors instead of deques. 
May be slightly less efficient but significantly reduces special
cases interfaces in code generation.

llvm-svn: 2649
 2002-05-19 15:41:33 +00:00
Vikram S. Adve
c0db1765f4 Hash pointer values to a sequence number to get identical results from 
lli and llc.  This is controlled with options -tracehash on|off.

Also, added an option to specify which functions should be traced.
Particularly useful to reduce output volume in basic-block tracing.

llvm-svn: 2646
 2002-05-19 15:39:02 +00:00
Vikram S. Adve
3d968bccd8 Better folding getelementptr operations with mixed 
array and struct indexes.
Update operand values in CallArgsDescriptor (a new class)
when replacing constant values with immediates.

llvm-svn: 2645
 2002-05-19 15:34:29 +00:00
Vikram S. Adve
883c425f15 cpValue2Value now needs a vector of MachineInstr to store return values. 
llvm-svn: 2644
 2002-05-19 15:31:08 +00:00
Vikram S. Adve
1f8badf623 Annotation class for MachineInstr. 
llvm-svn: 2643
 2002-05-19 15:30:21 +00:00
Vikram S. Adve
6133689517 Numerous bug fixes: 
-- passing FP arguments to functions with more than 6 arguments
-- passing FP arguments to varargs functions
-- passing FP arguments to functions with no prototypes
-- incorrect coloring for CC registers (both int and FP): interferences
   were being completely ignored for int CC and were considered but no
   spills were marked for fp CC!

Also some code improvements:
-- better interface to generating machine instr for common cases
   (many places still need to be updated to use this interface)
-- annotations on MachineInstr to communicate information from
   one codegen phase to another (now used to pass information about
   CALL/JMPLCALL operands from selection to register allocation)
-- all sizes and offests in class TargetData are uint64_t instead of uint

llvm-svn: 2642
 2002-05-19 15:29:31 +00:00
Vikram S. Adve
a5968c518f Add integer register size field. 
Make all sizes and offsets uint64_t instead of uint.
Fixed GetIndexedOffset to handle mixed array and struct indices.

llvm-svn: 2641
 2002-05-19 15:28:02 +00:00
Vikram S. Adve
fa6c24db76 Numerous bug fixes: 
-- correct sign extensions for integer casts and for shift-by-constant
   instructions generated for integer multiply
-- passing FP arguments to functions with more than 6 arguments
-- passing FP arguments to varargs functions
-- passing FP arguments to functions with no prototypes
-- incorrect stack frame size when padding a section
-- folding getelementptr operations with mixed array and struct indexes
-- use uint64_t instead of uint for constant offsets in mem operands
-- incorrect coloring for CC registers (both int and FP): interferences
   were being completely ignored for int CC and were considered but no
   spills were marked for fp CC!

Also some code improvements:
-- better interface to generating machine instr for common cases
   (many places still need to be updated to use this interface)
-- annotations on MachineInstr to communicate information from
   one codegen phase to another (now used to pass information about
   CALL/JMPLCALL operands from selection to register allocation)
-- all sizes and offests in class TargetData are uint64_t instead of uint

llvm-svn: 2640
 2002-05-19 15:25:51 +00:00
Chris Lattner
4d98351cea Fix bug: test/Regression/CBackend/2002-05-16-NameCollide.ll by tracking 
which global variables would have name collisions if they were not mangled,
and use this info to mangle them iff they would collide.

llvm-svn: 2639
 2002-05-17 04:55:35 +00:00
Chris Lattner
a524df6d1d * Make debug output conditional on #define 
* Add optimization to rank computation to not recursively search when
  unneccesary.
* More agressively negate expressions to open reassociation opportunities.
* Linearize (A+B)+(C+D) into ((A+B)+C)+D

llvm-svn: 2637
 2002-05-16 04:37:07 +00:00
Chris Lattner
fc21b26332 * Fix bug: test/Regression/Transforms/GCSE/2002-05-14-OperandSwap.ll 
By making sure to consider binary expressions identical if their operands
are backwards, but swappable.

llvm-svn: 2629
 2002-05-14 19:57:25 +00:00
Chris Lattner
8106c7a841 Fix bug: test/Regression/Transforms/InstCombine/2002-05-14-SubFailure.ll 
llvm-svn: 2627
 2002-05-14 16:44:07 +00:00
Chris Lattner
f7333e31a1 Avoid emitting a useless comment for a basic block with no uses (which 
often happens for the entry basic block of a function)

llvm-svn: 2624
 2002-05-14 16:02:05 +00:00
Chris Lattner
0ee0c26f4e Fix bug: test/Regression/Transforms/InstCombine/2002-05-14-TouchDeletedInst.ll 
"This testcase caused instcombine to fail because it got the same instruction on
it's worklist more than once (which is ok), but then deleted the instruction.
Since the inst stayed on the worklist, as soon as it came back up to be
processed, bad things happened, and opt asserted."

llvm-svn: 2623
 2002-05-14 15:24:07 +00:00
Chris Lattner
f98fefc1ea Fix a major source of "type unsafety", where a cast is neccesary, but can 
be put either before or after a load.  We chose to cast the value loaded
instead of the pointer to load from.

Fixes bug: test/Regression/Transforms/LevelRaise/2002-05-10-LoadPeephole.ll

llvm-svn: 2621
 2002-05-14 05:23:45 +00:00
Chris Lattner
b7688286c1 Implement elimination of loads 
llvm-svn: 2620
 2002-05-14 05:02:40 +00:00