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Author SHA1 Message Date
Dale Johannesen
676a1d026b Fix for PR 2323, infinite loop in tail dup. 
llvm-svn: 51063
 2008-05-13 20:06:43 +00:00
Chris Lattner
a11adf725d add a note 
llvm-svn: 51062
 2008-05-13 19:56:20 +00:00
Evan Cheng
cb56638548 - 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
c9eb6a7d64 add a note 
llvm-svn: 51060
 2008-05-13 18:48:54 +00:00
Dan Gohman
5bdb90a532 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
c290daf581 Fix one more encoding bug. 
llvm-svn: 51057
 2008-05-13 17:52:09 +00:00
Sanjiv Gupta
c2219bf493 Added configure switches for PIC16 backend. 
llvm-svn: 51056
 2008-05-13 17:37:32 +00:00
Evan Cheng
cf6928983b - 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
5961d53986 Add thin layer over StringMap to form StringSet. By Mikhail Glushenkov. 
llvm-svn: 51048
 2008-05-13 15:03:16 +00:00
Owen Anderson
7f6db08b5f Make the non-local CSE safety checks slightly more thorough. 
llvm-svn: 51035
 2008-05-13 13:41:23 +00:00
Sanjiv Gupta
fa065a1455 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
9e15622879 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
f67c06279b Add a testcase for non-local CSE of read-only calls. 
llvm-svn: 51025
 2008-05-13 08:17:44 +00:00
Owen Anderson
c54c61634c Add support for non-local CSE of read-only calls. 
llvm-svn: 51024
 2008-05-13 08:17:22 +00:00
Gabor Greif
22afb1f8f0 Derive GetResultInst from UnaryInstruction, this simplifies code and removes a FIXME. 
llvm-svn: 51023
 2008-05-13 07:09:08 +00:00
Dan Gohman
138a53b303 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
b4412e7652 80 col / tabs fixes 
llvm-svn: 51021
 2008-05-13 01:48:26 +00:00
Nate Begeman
b9a3d141aa Fix and encoding error in the psrad xmm, imm8 instruction. 
llvm-svn: 51020
 2008-05-13 01:47:52 +00:00
Evan Cheng
e4ee4c2870 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
bab18cae46 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
31a31d4511 Initial documentation for first-class aggregates changes. 
llvm-svn: 51013
 2008-05-12 23:51:09 +00:00
Dan Gohman
b3a433ed7b Fix a malformed %gt; 
llvm-svn: 51011
 2008-05-12 23:38:42 +00:00
Nate Begeman
5d939498c3 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
fcbdc8bd6e 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
b54491d31a New test for tail merging 
llvm-svn: 51007
 2008-05-12 22:59:44 +00:00
Dale Johannesen
b4da55c4a3 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
2f2610cf51 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
646f3458c4 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
2ae55cecc6 Initial X86 codegen support for VSETCC. 
llvm-svn: 51000
 2008-05-12 20:34:32 +00:00
Dale Johannesen
25896f8e93 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
a3a9e89b61 Simplify some checks 
llvm-svn: 50998
 2008-05-12 20:33:52 +00:00
Dan Gohman
efa0925915 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
e9476924d9 Pointer comparisons should use icmp, not vicmp 
llvm-svn: 50996
 2008-05-12 20:16:55 +00:00
Owen Anderson
0256b368f8 Go back to passing the analyses around as parameters. 
llvm-svn: 50995
 2008-05-12 20:15:55 +00:00
Nate Begeman
b72a398339 Pointer comparisons should be handled by icmp, not vicmp :) 
llvm-svn: 50994
 2008-05-12 20:11:05 +00:00
Evan Cheng
228cce5b2d Forgot this. 
llvm-svn: 50993
 2008-05-12 20:08:05 +00:00
Nate Begeman
6258a36fe3 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
c7e9acfed7 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
f3c4b7fbb5 Revert the previous commit. Go ahead and hoist rematerializable instructions. 
llvm-svn: 50990
 2008-05-12 19:47:18 +00:00
Nate Begeman
11c0772a30 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
74cabebb44 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
e2b25610bb Fix build breakage 
llvm-svn: 50986
 2008-05-12 19:23:22 +00:00
Nate Begeman
b5b1e1353b 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
4224373cc8 Make firstEightPowers const. 
llvm-svn: 50975
 2008-05-12 16:38:14 +00:00
Dan Gohman
4f0d9d18c3 Update comments. 
llvm-svn: 50974
 2008-05-12 16:34:30 +00:00
Mikhail Glushenkov
18508c5df4 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
0cc6bb7a70 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
5005376b0c 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
8212eaa43a 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
6fcb44e191 Fix a missing break in the ISD::FLT_ROUNDS_ handling. Patch by giuma! 
llvm-svn: 50967
 2008-05-12 16:07:15 +00:00