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Author SHA1 Message Date
Rafael Espindola
efe64e5f1e Add bound checks in SmallVector 
llvm-svn: 56432
 2008-09-22 10:06:26 +00:00
Oscar Fuentes
d1fdff199f add_partially_linked_object: Replaced nonexistent MESSAGE option in 
add_custom_command with COMMENT. It was forcing unconditional command
execution.

llvm-svn: 56425
 2008-09-22 02:33:43 +00:00
Oscar Fuentes
0f25988689 Initial support for the CMake build system. 
llvm-svn: 56419
 2008-09-22 01:08:49 +00:00
Bill Wendling
3ee08ff81e Add helper function to get a 32-bit floating point constant. No functionality change. 
llvm-svn: 56418
 2008-09-22 00:44:35 +00:00
Chris Lattner
2e3521d5e6 explain what earlyclobber actually is. 
llvm-svn: 56415
 2008-09-21 23:30:17 +00:00
Chris Lattner
6e5b4c609c Fold immediates into X86 shifts with fast isel. This generates: 
sarl    $3, %ecx

instead of:

movl    $3, %ecx
sarl    %cl, %edx

This shrinks fast isel 176.gcc by about 2000 instructions (.3%)

llvm-svn: 56413
 2008-09-21 21:44:29 +00:00
Dan Gohman
98a22f8a8f Factor out code into HandleVirtRegDef, for consistency with 
Handle{Virt,Phys}Reg{Def,Use}. Remove a redundant check
for register zero, and redundant checks for isPhysicalRegister.

llvm-svn: 56412
 2008-09-21 21:11:41 +00:00
Dan Gohman
c8477ceabe Instead of building a list and sorting it just to find a maximum element, 
compute the maximum element directly.

llvm-svn: 56411
 2008-09-21 21:01:49 +00:00
Owen Anderson
981113c401 Fetch the starting index of the block when assigning intervals. This gets live-in indices 
correct in the presence of things like EH labels.

llvm-svn: 56410
 2008-09-21 20:43:24 +00:00
Chris Lattner
01cab96cba don't print GlobalAddressSDNode's with an offset of zero as "foo0". 
llvm-svn: 56399
 2008-09-21 18:38:31 +00:00
Chris Lattner
c018045520 add a note 
llvm-svn: 56391
 2008-09-20 19:17:53 +00:00
Cedric Venet
68f5000738 Update VS projects. 
Change some class to struct for coherency.

llvm-svn: 56389
 2008-09-20 18:02:18 +00:00
Dale Johannesen
baa4420dc2 Shorten and rearrange data fields to save a word of memory. 
Per review feedback.

llvm-svn: 56388
 2008-09-20 17:45:21 +00:00
Duncan Sands
38b44d2a40 Implement review feedback from Devang: make use 
of mayReadFromMemory and mayWriteToMemory.

llvm-svn: 56387
 2008-09-20 16:45:58 +00:00
Dale Johannesen
4a0054dc9a Teach coalescer about earlyclobber bits. 
Check bits for preferred register.

llvm-svn: 56384
 2008-09-20 02:03:04 +00:00
Evan Cheng
270178bdda Fix PR2808. When regalloc runs out of register, it spill a physical register around the live interval being allocated. Do not continue to try to spill another register, just grab the physical register and move on. 
llvm-svn: 56381
 2008-09-20 01:28:05 +00:00
Evan Cheng
c01e6c2f59 Clean up the test. 
llvm-svn: 56380
 2008-09-20 01:26:27 +00:00
Evan Cheng
6a86ec1ef0 No need to print function stubs for Mac OS X 10.5 and up. Linker will handle it. 
llvm-svn: 56378
 2008-09-20 00:13:45 +00:00
Evan Cheng
7bcd8409b7 80 column violation. 
llvm-svn: 56377
 2008-09-20 00:13:08 +00:00
Dan Gohman
af1eeb6421 Fix a FastISel GlobalVariable CSE bug. 
llvm-svn: 56376
 2008-09-19 23:42:04 +00:00
Evan Cheng
23e36297d6 Continue after removing the current MI. 
llvm-svn: 56372
 2008-09-19 22:49:39 +00:00
Dan Gohman
f66b3277d3 Refactor X86SelectConstAddr, folding it into X86SelectAddress. This 
results in better code for globals. Also, unbreak the local CSE for
GlobalValue stub loads.

llvm-svn: 56371
 2008-09-19 22:16:54 +00:00
Dale Johannesen
312df3aa6d Make earlyclobber stuff work when virtual regs 
have previously been assigned conflicting physreg.

llvm-svn: 56364
 2008-09-19 18:52:31 +00:00
Bill Wendling
505ec388e2 Prevent warning about conversion from 64-bit to 32-bit by (yuck) casting... 
llvm-svn: 56359
 2008-09-19 18:34:40 +00:00
Dan Gohman
192b12c522 Now that ConstantSDNode doesn't hold an APInt, 
use ARG_FLAGSSDNode as the most aligned node type,
as it contains an int64_t, which is 8-byte
aligned on mingw.

llvm-svn: 56358
 2008-09-19 18:09:19 +00:00
Ted Kremenek
543bdab683 Added static methods to APSInt: getMinValue and getMaxValue. 
llvm-svn: 56355
 2008-09-19 18:01:14 +00:00
Evan Cheng
14493ffe78 Re-materalized definition instructions may be dead. Whack them. 
llvm-svn: 56352
 2008-09-19 17:38:47 +00:00
Gabor Greif
984ba5a313 backing out my last commit, it was not intended to go on the trunk 
llvm-svn: 56349
 2008-09-19 15:13:20 +00:00
Gabor Greif
67fa076542 first shot at removing Use::Val 
untested, Use::swap() is definitely not done yet

llvm-svn: 56348
 2008-09-19 15:03:57 +00:00
Duncan Sands
317cef874d Turn on the AddReadAttrs pass. 
llvm-svn: 56345
 2008-09-19 14:34:36 +00:00
Duncan Sands
df9829409c Add test for improvement of readonly to readnone, 
and non-demotion of readnone to readonly.

llvm-svn: 56344
 2008-09-19 09:20:05 +00:00
Duncan Sands
6c31b40cef Turn on these tests! 
llvm-svn: 56343
 2008-09-19 09:16:32 +00:00
Duncan Sands
b2b5ddfaf6 Remove the MarkModRef pass (use AddReadAttrs instead). 
Unfortunately this means removing one regression test
of GlobalsModRef because I couldn't work out how to
perform it without MarkModRef.

llvm-svn: 56342
 2008-09-19 08:23:44 +00:00
Duncan Sands
c2ff9ca568 Add a new pass AddReadAttrs which works out which functions 
can get the readnone/readonly attributes, and gives them it.
The plan is to remove markmodref (which did the same thing
by querying GlobalsModRef) and delete the analogous
functionality from GlobalsModRef.

llvm-svn: 56341
 2008-09-19 08:17:05 +00:00
Duncan Sands
bb48df5839 Test the callgraph directly for the missing edge. 
llvm-svn: 56338
 2008-09-19 08:01:57 +00:00
Duncan Sands
aaa27f4261 Teach -callgraph to always print the callgraph (as the 
description says it does), not just when -analyze is
used as well.  This means printing to stderr, so adjust
some tests.

llvm-svn: 56337
 2008-09-19 07:57:09 +00:00
Dale Johannesen
214ddc92d0 Remove AsmThatEarlyClobber etc. from LiveIntervalAnalysis 
and redo as linked list walk.  Logic moved into RA.
Per review feedback.

llvm-svn: 56326
 2008-09-19 01:02:35 +00:00
Devang Patel
1e7ddf5d31 splitLoop does not handle split condition EQ. 
Fixes PR 2805

llvm-svn: 56321
 2008-09-18 23:45:14 +00:00
Dan Gohman
71b1f15917 Address-mode folding for X86FastISel. It's pretty basic, but it 
catches a fair number of common cases. Note that this currently
causes Fast-ISel to leave behind lots of dead instructions.
Those will be dealt with in subsequent commits.

llvm-svn: 56320
 2008-09-18 23:23:44 +00:00
Bill Wendling
aadf9b22a7 Decrementing the iterator here could be wrong if the worklist is empty after the "erase". 
Thanks to Ji Young Park for the patch!

llvm-svn: 56316
 2008-09-18 23:04:18 +00:00
Devang Patel
201223af46 Try to place hoisted instructions befoe icmp instruction. 
llvm-svn: 56315
 2008-09-18 22:50:42 +00:00
Evan Cheng
bcd694a1b4 Somehow RegAllocLinearScan is keeping two pointers to MachineRegisterInfo. 
llvm-svn: 56314
 2008-09-18 22:38:47 +00:00
Dan Gohman
e1c4ad399a Simplify this code. The FastISel class has its own TD member. 
llvm-svn: 56311
 2008-09-18 18:26:43 +00:00
Dan Gohman
9dc56fbe40 Don't consider instructions with implicit physical register 
defs to be necessarily live.

llvm-svn: 56310
 2008-09-18 18:22:32 +00:00
Tanya Lattner
e5fe7f7369 Upgrade doxygen. 
llvm-svn: 56308
 2008-09-18 16:32:28 +00:00
Dan Gohman
b7c5b0f44b Add a new "fast" scheduler. This is currently basically just a 
copy of the BURRList scheduler, but with several parts ripped
out, such as backtracking, online topological sort maintenance
(needed by backtracking), the priority queue, and Sethi-Ullman
number computation and maintenance (needed by the priority
queue). As a result of all this, it generates somewhat lower
quality code, but that's its tradeoff for running about 30%
faster than list-burr in -fast mode in many cases.

This is somewhat experimental. Moving forward, major pieces of
this can be refactored with pieces in common with
ScheduleDAGRRList.cpp.

llvm-svn: 56307
 2008-09-18 16:26:26 +00:00
Evan Cheng
a0459a1c5a Preliminary support for systems which require changing JIT memory regions privilege from read / write to read / executable. 
llvm-svn: 56303
 2008-09-18 07:54:21 +00:00
Evan Cheng
6acdef5d11 Duh. Default to ARMCC::AL (always). 
llvm-svn: 56301
 2008-09-18 07:28:19 +00:00
Evan Cheng
99a186e39f Clean up. 
llvm-svn: 56300
 2008-09-18 07:27:23 +00:00
Evan Cheng
b44e839f76 Cosmetic. 
llvm-svn: 56299
 2008-09-18 07:24:33 +00:00