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38731 Commits

Author SHA1 Message Date
Devang Patel a9fcf009a3 Dominance Frontier is cfg only pass. 
llvm-svn: 51075
 2008-05-13 22:43:21 +00:00
Owen Anderson 3ab976a21f Fix memdep's handling of invokes when finding the dependency of another call 
instruction.  This fixes some Ada miscompiles reported in PR2324.

llvm-svn: 51069
 2008-05-13 21:25:37 +00:00
Chris Lattner bb3aef4ee3 Update the Win32 project files, patch by Razvan Aciu! 
llvm-svn: 51067
 2008-05-13 20:56:51 +00:00
Dale Johannesen e695ab227c Fix for PR 2323, infinite loop in tail dup. 
llvm-svn: 51063
 2008-05-13 20:06:43 +00:00
Chris Lattner 03ce206143 add a note 
llvm-svn: 51062
 2008-05-13 19:56:20 +00:00
Evan Cheng f8ab712fa9 - Fix the pasto in the fix for a previous pasto. 
- Incorporate Chris' comment suggestion.

llvm-svn: 51061
 2008-05-13 18:59:59 +00:00
Chris Lattner d17f58ae6e add a note 
llvm-svn: 51060
 2008-05-13 18:48:54 +00:00
Dan Gohman 35a835cb60 s/indicies/indices/ and clarify the extractvalue and insertvalue are 
working with struct field or array element values. Thanks Duncan!

llvm-svn: 51059
 2008-05-13 18:16:06 +00:00
Nate Begeman 6645714f16 Fix one more encoding bug. 
llvm-svn: 51057
 2008-05-13 17:52:09 +00:00
Sanjiv Gupta f6387983e8 Added configure switches for PIC16 backend. 
llvm-svn: 51056
 2008-05-13 17:37:32 +00:00
Evan Cheng 595e226085 - Don't treat anyext 16-bit load as a 32-bit load if it's volatile. 
- Correct a pasto.

llvm-svn: 51054
 2008-05-13 16:45:56 +00:00
Anton Korobeynikov 5c48bae209 Add thin layer over StringMap to form StringSet. By Mikhail Glushenkov. 
llvm-svn: 51048
 2008-05-13 15:03:16 +00:00
Owen Anderson 8c2391d00d Make the non-local CSE safety checks slightly more thorough. 
llvm-svn: 51035
 2008-05-13 13:41:23 +00:00
Sanjiv Gupta 4394c2376c Adding files for Microchip's PIC16 target. 
A brief description about PIC16:
===============================
PIC16 is an 8-bit microcontroller with only one 8-bit register which is the 
accumulator. All arithmetic/load/store operations are 8-bit only.
The architecture has two address spaces: program and data. The program memory 
is divided into 2K pages and the data memory is divided into banks of 128 byte, with only 80 usable bytes, resulting in an non-contiguous data memory. 

It supports direct data memory access (by specifying the address as part of the instruction) and indirect data and program memory access (in an unorthodox fashion which utilize a 16 bit pointer register). 

Two classes of registers exist: (8-bit class which is only one
accumulator) (16-bit class, which contains one or more 16 bit
pointer(s))

llvm-svn: 51027
 2008-05-13 09:02:57 +00:00
Evan Cheng 1120279ae6 Instead of a vector load, shuffle and then extract an element. Load the element from address with an offset. 
pshufd $1, (%rdi), %xmm0
        movd %xmm0, %eax
=>
        movl 4(%rdi), %eax

llvm-svn: 51026
 2008-05-13 08:35:03 +00:00
Owen Anderson 525aa89356 Add a testcase for non-local CSE of read-only calls. 
llvm-svn: 51025
 2008-05-13 08:17:44 +00:00
Owen Anderson 69057b80c7 Add support for non-local CSE of read-only calls. 
llvm-svn: 51024
 2008-05-13 08:17:22 +00:00
Gabor Greif 0d42adf65b Derive GetResultInst from UnaryInstruction, this simplifies code and removes a FIXME. 
llvm-svn: 51023
 2008-05-13 07:09:08 +00:00
Dan Gohman 0479aa5c0b Change class' public PassInfo variables to by initialized with the 
address of the PassInfo directly instead of calling getPassInfo.
This eliminates a bunch of dynamic initializations of static data.

Also, fold RegisterPassBase into PassInfo, make a bunch of its
data members const, and rearrange some code to initialize data
members in constructors instead of using setter member functions.

llvm-svn: 51022
 2008-05-13 02:05:11 +00:00
Nate Begeman 53c5c62d6d 80 col / tabs fixes 
llvm-svn: 51021
 2008-05-13 01:48:26 +00:00
Nate Begeman 50f7ef30bb Fix and encoding error in the psrad xmm, imm8 instruction. 
llvm-svn: 51020
 2008-05-13 01:47:52 +00:00
Evan Cheng 3f40c69083 On x86, it's safe to treat i32 load anyext as a normal i32 load. Ditto for i8 anyext load to i16. 
llvm-svn: 51019
 2008-05-13 00:54:02 +00:00
Dan Gohman d78c400b5b Clean up the use of static and anonymous namespaces. This turned up 
several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017
 2008-05-13 00:00:25 +00:00
Dan Gohman b9d6660998 Initial documentation for first-class aggregates changes. 
llvm-svn: 51013
 2008-05-12 23:51:09 +00:00
Dan Gohman 43ba067132 Fix a malformed %gt; 
llvm-svn: 51011
 2008-05-12 23:38:42 +00:00
Nate Begeman b87e63a730 Teach Legalize how to scalarize VSETCC 
Teach X86 a few more vsetcc patterns.  Custom lowering for unsupported ones is next.

llvm-svn: 51009
 2008-05-12 23:09:43 +00:00
Evan Cheng b980f6fb3d Xform bitconvert(build_pair(load a, load b)) to a single load if the load locations are at the right offset from each other. 
llvm-svn: 51008
 2008-05-12 23:04:07 +00:00
Dale Johannesen e6942c31ea New test for tail merging 
llvm-svn: 51007
 2008-05-12 22:59:44 +00:00
Dale Johannesen 9d29283fc7 Be more aggressive about tail-merging small blocks 
if those blocks consist entirely of common instructions;
merging will not add an extra branch in this case.

llvm-svn: 51006
 2008-05-12 22:53:12 +00:00
Bill Wendling 6b8bd513d4 Constify isSourceDefinedByImplicitDef function. Otherwise, just formatting 
changes that don't change functionality.

llvm-svn: 51004
 2008-05-12 22:15:05 +00:00
Bill Wendling 1e11768a4f Constify the machine instruction passed into the 
"is{Trivially,Really}ReMaterializable" methods.

llvm-svn: 51001
 2008-05-12 20:54:26 +00:00
Nate Begeman d875c3e2fd Initial X86 codegen support for VSETCC. 
llvm-svn: 51000
 2008-05-12 20:34:32 +00:00
Dale Johannesen c4c4d8e1f7 Further rework of tail merge algorithm. Not quite 
semantically identical, but little difference in
either results or execution speed; but it's much
easier to read, at least IMO.

llvm-svn: 50999
 2008-05-12 20:33:57 +00:00
Nate Begeman 68586bddb1 Simplify some checks 
llvm-svn: 50998
 2008-05-12 20:33:52 +00:00
Dan Gohman 0863b19ae6 Fix a copy+paste bug; pseudo-instructions shouldn't have 
encoding information.

llvm-svn: 50997
 2008-05-12 20:22:45 +00:00
Nate Begeman 17c5434a16 Pointer comparisons should use icmp, not vicmp 
llvm-svn: 50996
 2008-05-12 20:16:55 +00:00
Owen Anderson f792860255 Go back to passing the analyses around as parameters. 
llvm-svn: 50995
 2008-05-12 20:15:55 +00:00
Nate Begeman 66d0a0e8f4 Pointer comparisons should be handled by icmp, not vicmp :) 
llvm-svn: 50994
 2008-05-12 20:11:05 +00:00
Evan Cheng 5f52142ee0 Forgot this. 
llvm-svn: 50993
 2008-05-12 20:08:05 +00:00
Nate Begeman 1196287522 Hard code CmpInst back to i1 for now while I go track down what in the bitcode reader/writer is assuming i1 
This was breaking a bunch of tests

llvm-svn: 50992
 2008-05-12 20:01:56 +00:00
Evan Cheng 2609d5e779 Refactor isConsecutiveLoad from X86 to TargetLowering so DAG combiner can make use of it. 
llvm-svn: 50991
 2008-05-12 19:56:52 +00:00
Bill Wendling 2930845065 Revert the previous commit. Go ahead and hoist rematerializable instructions. 
llvm-svn: 50990
 2008-05-12 19:47:18 +00:00
Nate Begeman cfcb56091b Add support for vicmp/vfcmp codegen, more legalize support coming. 
This is necessary to unbreak the build.

llvm-svn: 50988
 2008-05-12 19:40:03 +00:00
Bill Wendling 70613b84da One real change - don't hoist something that's trivially rematerializable. It's 
possible for it to produce worse code than before.

The rest of this patch is code cleanup.

llvm-svn: 50987
 2008-05-12 19:38:32 +00:00
Nate Begeman ac7f3d99dd Fix build breakage 
llvm-svn: 50986
 2008-05-12 19:23:22 +00:00
Nate Begeman d21957002a Add two new instructions to the llvm IR, vicmp and vfcmp. see updated LangRef 
for details.  CodeGen support coming in a follow up patch

llvm-svn: 50985
 2008-05-12 19:01:56 +00:00
Dan Gohman 02e5933fa3 Make firstEightPowers const. 
llvm-svn: 50975
 2008-05-12 16:38:14 +00:00
Dan Gohman e9bc2ba256 Update comments. 
llvm-svn: 50974
 2008-05-12 16:34:30 +00:00
Mikhail Glushenkov c79304461a Filter option names to escape symbols not allowed as C++ identifiers. 
Makes it possible to use options with names like "Wa,".
Also fixes the -Wall option handling as a side-effect.

llvm-svn: 50973
 2008-05-12 16:33:06 +00:00
Mikhail Glushenkov 3f896c8d16 Make it possible to choose between different compilation graph definitions at compile-time. 
llvm-svn: 50972
 2008-05-12 16:32:24 +00:00
Mikhail Glushenkov 128349b8bf Fix some error messages; Make LLVMC pass through the exit code of a failed tool. 
llvm-svn: 50971
 2008-05-12 16:31:42 +00:00
Dan Gohman 906716c40f Fix a compile error on compilers that still want a return value 
in a non-void function that calls abort.

llvm-svn: 50969
 2008-05-12 16:17:19 +00:00
Dan Gohman ecb77385ab Fix a missing break in the ISD::FLT_ROUNDS_ handling. Patch by giuma! 
llvm-svn: 50967
 2008-05-12 16:07:15 +00:00
Duncan Sands 2b84ba4c9b Testcase for PR2264. 
llvm-svn: 50965
 2008-05-12 13:01:19 +00:00
Owen Anderson 4afb1c864a Move the various analyses used by GVN into static variables so we don't have to keep passing them around or refetching them. 
llvm-svn: 50963
 2008-05-12 08:15:27 +00:00
Chris Lattner 9fdb814a56 prune #includes. 
llvm-svn: 50962
 2008-05-12 01:13:53 +00:00
Chris Lattner 5287765d1a Add a new SparsePropagation analysis utility, which allows you to do 
SCCP like sparse lattice analysis with relative ease.  Just pick your
lattice function and implement the transfer function and you're good.
Just make sure you don't break monotonicity ;-)

llvm-svn: 50961
 2008-05-12 01:12:24 +00:00
Nick Lewycky c38c1712f7 Make constructors target-specific. This fixes problems where the path would 
include backslashes on Windows. This should fix llvm-ld problems on win32.

llvm-svn: 50960
 2008-05-11 17:37:40 +00:00
Anton Korobeynikov a38e72d247 Add note 
llvm-svn: 50959
 2008-05-11 14:33:15 +00:00
Chris Lattner 47fed61526 Fix various DOUTs to not call the extremely expensive Value::getName() 
method.  DOUT statements are disabled when assertions are off, but the
side effects of getName() are still evaluated.  Just call getNameSTart,
which is close enough and doesn't cause heap traffic.

llvm-svn: 50958
 2008-05-11 01:55:59 +00:00
Chris Lattner 82146fa267 Simplify code by using SwitchInst::findCaseValue instead of reimplementing it. 
llvm-svn: 50957
 2008-05-10 23:56:54 +00:00
Bill Wendling 9fbd6e7e8c Remove warnings when using -Wshorten-64-to-32. 
llvm-svn: 50952
 2008-05-10 19:59:59 +00:00
Duncan Sands 8111b67ca8 Testcase for PR2303. 
llvm-svn: 50951
 2008-05-10 16:43:10 +00:00
Anton Korobeynikov acbdaa2406 Fix linking of internal aliases 
llvm-svn: 50950
 2008-05-10 14:41:43 +00:00
Bill Wendling 7385b08d34 Prevent -W64-to-32-shortened warnings. 
llvm-svn: 50947
 2008-05-10 11:26:52 +00:00
Bill Wendling a6c46c2f21 Prevent warnings from the -Wshorten-64-to-32 flag. 
llvm-svn: 50946
 2008-05-10 10:58:07 +00:00
Gabor Greif a1f949a2df remove commented-out code, it is subsumed by DECLARE_TRANSPARENT_OPERAND_ACCESSORS 
llvm-svn: 50944
 2008-05-10 09:36:58 +00:00
Gabor Greif f6caff66a1 merge of use-diet branch to trunk 
llvm-svn: 50943
 2008-05-10 08:32:32 +00:00
Owen Anderson 18709fef4a Re-enable loop deletion by default. 
llvm-svn: 50941
 2008-05-10 07:10:24 +00:00
Evan Cheng 71b9afb053 When transforming a vector_shuffle to a load, the base address must not be an undef. 
llvm-svn: 50940
 2008-05-10 06:46:49 +00:00
Tanya Lattner b93cfdb48a Set to 2.4 and regenerate configure. 
llvm-svn: 50935
 2008-05-10 04:20:38 +00:00
Evan Cheng 9c4d685165 Add nounwind. 
llvm-svn: 50931
 2008-05-10 02:22:25 +00:00
Dan Gohman 3c0e11af64 For now, abort when an ISD::VAARG is encountered on x86-64, rather 
than silently generate invalid code.

llvm-gcc does not currently use VAArgInst; it lowers va_arg in the
front-end.

llvm-svn: 50930
 2008-05-10 01:26:14 +00:00
Evan Cheng da2587cedc Some clean up. 
llvm-svn: 50929
 2008-05-10 00:59:18 +00:00
Evan Cheng bb48d55a88 If movl top bits are undef, let it be selected to movlps, etc. 
llvm-svn: 50928
 2008-05-10 00:58:41 +00:00
Evan Cheng bec201fa06 If all sources of a PHI node are defined by an implicit_def, just emit an implicit_def instead of a copy. 
llvm-svn: 50927
 2008-05-10 00:17:50 +00:00
Bill Wendling 19e3c857b8 Cosmetic changes: 
- Comment fixes.
 - Moar whitespace.
 - Made ivars "private" by default.
No functionality change.

llvm-svn: 50926
 2008-05-10 00:12:52 +00:00
Evan Cheng 867af2678f Add a pattern to do move the low element of a v4f32 and zero extend the rest. 
llvm-svn: 50922
 2008-05-09 23:37:55 +00:00
Dale Johannesen 66da8b5334 Remove an evil vector bool. Cosmetic refactoring, 
no functional change.

llvm-svn: 50921
 2008-05-09 23:28:24 +00:00
Evan Cheng 961339bbdb Handle a few more cases of folding load i64 into xmm and zero top bits. 
Note, some of the code will be moved into target independent part of DAG combiner in a subsequent patch.

llvm-svn: 50918
 2008-05-09 21:53:03 +00:00
Evan Cheng 7f76852a50 Make OpActionsCapacity multiple of 4. 
llvm-svn: 50917
 2008-05-09 21:50:23 +00:00
Dale Johannesen cff7df201c Rewrite tail merging algorithm to handle the 
case where there are multiple blocks with a large
number of common tail instructions more efficiently
(compile time optimization).

llvm-svn: 50916
 2008-05-09 21:24:35 +00:00
Torok Edwin 42d46f2aa3 put LibCallAliasAnalysis into anonymous namespace to avoid 
clashes on ::X

llvm-svn: 50912
 2008-05-09 20:35:45 +00:00
Evan Cheng 0352e63e39 Simplify test. 
llvm-svn: 50911
 2008-05-09 19:56:32 +00:00
Mikhail Glushenkov 4ae55648bc Rename Example.td to Graph.td. 
llvm-svn: 50910
 2008-05-09 19:11:28 +00:00
Nick Kledzik db18f328d7 use doxygen comments for makeBuffer() 
llvm-svn: 50908
 2008-05-09 18:44:41 +00:00
Chris Lattner a4ee1f516f don't sink invokes, even if they are readonly. This fixes a 
crash on kimwitu++.

llvm-svn: 50901
 2008-05-09 15:07:33 +00:00
Duncan Sands 437435dcbc Fix a type and formatting. 
llvm-svn: 50900
 2008-05-09 12:20:10 +00:00
Mikhail Glushenkov 22ce861ffe Reapply 50867: A small refactoring (extract method) + some comment fixes. 
Fixed the build breakage, sorry for that.

llvm-svn: 50895
 2008-05-09 08:27:26 +00:00
Chris Lattner f2e4cfd7e2 add support for pattern matching 'neg' 
llvm-svn: 50883
 2008-05-09 05:20:27 +00:00
Chris Lattner aaba10e843 Implement PR2298. This transforms: 
~x < ~y --> y < x
   -x == -y --> x == y

llvm-svn: 50882
 2008-05-09 05:19:28 +00:00
Chris Lattner e7f0afe168 restore doxygen comment. 
llvm-svn: 50881
 2008-05-09 04:43:13 +00:00
Nick Kledzik 63b6127a73 <rdar://problem/5917641> use getMemBufferCopy if supplied buffer is not already zero terminated 
llvm-svn: 50880
 2008-05-09 01:09:59 +00:00
Anton Korobeynikov a50eed4af9 Check for validity of aliasee pointer before dereference. 
llvm-svn: 50878
 2008-05-08 23:11:06 +00:00
Evan Cheng 0360ecbec1 Use movq to move low half of XMM register and zero-extend the rest. 
llvm-svn: 50874
 2008-05-08 22:35:02 +00:00
Chris Lattner 954907aa6f conservatively say that volatile stores read memory. 
llvm-svn: 50872
 2008-05-08 21:58:49 +00:00
Tanya Lattner 93cea9fd18 Revertin 50867 since it was breaking the build. 
llvm-svn: 50871
 2008-05-08 21:54:20 +00:00
Chris Lattner c2e108430f store can't read from memory. 
llvm-svn: 50869
 2008-05-08 21:47:43 +00:00
Mikhail Glushenkov e75ac17eaa Add -E and -S options 
llvm-svn: 50868
 2008-05-08 20:02:36 +00:00
Mikhail Glushenkov d7e151f868 A small refactoring (extract method) + some comment fixes. 
llvm-svn: 50867
 2008-05-08 20:02:03 +00:00