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Author SHA1 Message Date
Chris Lattner
63e944b05e reapply r82348 with a fix, thanks Jeffrey. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82683 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-24 05:38:36 +00:00
Evan Cheng
393e277ecd Fix PR5024 with a big hammer: disable the double-def assertion in the scavenger. 
LiveVariables add implicit kills to correctly track partial register kills. This works well enough and is fairly accurate. But coalescer can make it impossible to maintain these markers. e.g.

        BL <ga:sss1>, %R0<kill,undef>, %S0<kill>, %R0<imp-def>, %R1<imp-def,dead>, %R2<imp-def,dead>, %R3<imp-def,dead>, %R12<imp-def,dead>, %LR<imp-def,dead>, %D0<imp-def>, ...
...
	%reg1031<def> = FLDS <cp#1>, 0, 14, %reg0, Mem:LD4[ConstantPool]
...
   	%S0<def> = FCPYS %reg1031<kill>, 14, %reg0, %D0<imp-use,kill>

When reg1031 and S0 are coalesced, the copy (FCPYS) will be eliminated the the implicit-kill of D0 is lost. In this case it's possible to move the marker to the FLDS. But in many cases, this is not possible. Suppose

	%reg1031<def> = FOO <cp#1>, %D0<imp-def>
...
   	%S0<def> = FCPYS %reg1031<kill>, 14, %reg0, %D0<imp-use,kill>

When FCPYS goes away, the definition of S0 is the "FOO" instruction. However, transferring the D0 implicit-kill to FOO doesn't work since it is the def of D0 itself. We need to fix this in another time by introducing a "kill" pseudo instruction to track liveness.

Disabling the assertion is not ideal, but machine verifier is doing that job now. It's important to know double-def is not a miscomputation since it means a register should be free but it's not tracked as free. It's a performance issue instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82677 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-24 02:27:09 +00:00
Evan Cheng
ad934b821c Clean up LiveVariables and change how it deals with partial updates and kills. This also eliminate the horrible check which scan forward to the end of the basic block. It should be faster and more accurate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82676 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-24 02:15:22 +00:00
Jeffrey Yasskin
1d75d3a8ae Roll back r82348, which introduced an infinite loop in ParseCStringVector() that 
a trivial unittest would have caught.  This revision also adds the trivial
unittest.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82675 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-24 01:14:07 +00:00
Dale Johannesen
d5405a67d5 A minor improvment in accuracy to inline cost 
computation, and some cosmetics.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82660 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 22:05:24 +00:00
Dale Johannesen
30f290dac3 Disable test; what it's testing for is wrong. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82658 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 21:46:36 +00:00
David Goodwin
127221fbdc Checkpoint NEON scheduling itineraries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82657 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 21:38:08 +00:00
Dan Gohman
4e918b2c8c Use getStoreSize() instead of getStoreSizeInBits()/8. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82656 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 21:07:02 +00:00
Dan Gohman
d1f3cee976 Spruce up some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82655 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 21:06:36 +00:00
Dan Gohman
8a55ce4a39 Rename several variables from EVT to more descriptive names, now that EVT 
is also the name of their type, as declarations like "EVT EVT" look
really odd.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82654 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 21:02:20 +00:00
Dan Gohman
54d4a53c42 Add an EVT::getStoreSize function, like getStoreSizeInBits but in bytes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82653 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 20:59:10 +00:00
Jakob Stoklund Olesen
39523e2cfb Fix verification of explicit operands. 
The machine code verifier did not check for explicit operands correctly. It
used MachineInstr::getNumExplicitOperands, but that method may cheat and use
the declared count in the TargetInstrDesc.

Now we check the explicit operands one at a time in visitMachineOperand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82652 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 20:57:55 +00:00
Bob Wilson
959b002c4d Remove BlackfinRegisterInfo::getFrameIndexOffset since it is the same as the 
default implementation.  Update comment on the default version, which made it
sound like most targets override it.  Currently only X86 and SystemZ override
this method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82651 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 20:57:02 +00:00
Dan Gohman
9f765dd0ee Correct a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82648 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 20:40:16 +00:00
Devang Patel
ffa363c94b Delete attached metadata when an instruction is deleted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82647 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 20:33:51 +00:00
Anton Korobeynikov
48e1935284 ARM does not support offset folding (yet). Disable it for now. 
This fixes PR5031. Unfortunately, there is no small testcase :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82643 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 19:04:09 +00:00
Bob Wilson
94188d4e67 Edit a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82641 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 18:53:19 +00:00
Devang Patel
6c6c016b1b Do not leave behind metadata while cloning an instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82638 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 18:32:25 +00:00
Evan Cheng
79997912a7 Add nounwind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82637 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 18:20:27 +00:00
Devang Patel
2e3f2c48d8 s/*Location/*DebugLocation/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82635 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 17:20:43 +00:00
Jeffrey Yasskin
e04701a760 PR4047: Permit configure --enable-targets=host,cpp for example. "host" has the 
same effect that "host-only" used to have, but can be combined with other
targets.  host-only is still available as a synonym but no longer documented.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82634 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 17:05:42 +00:00
David Goodwin
8f909345bc Fix bug in kill flag updating for post-register-allocation scheduling. When the kill flag of a superreg needs to be cleared because there are one or more subregs live, we instead add implicit-defs of those subregs and leave the kill flag on the superreg. This allows us to end the live-range of the superreg without ending the live-ranges of the subregs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82629 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 16:35:25 +00:00
Benjamin Kramer
7bd19af7c3 Fix a struct/class mismatch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82622 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 11:48:57 +00:00
John McCall
470e08e1d1 Make the type traits for a const pointer defer to those for a unqualified 
pointer, instead of providing independent values modelled on the default
implementation.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82620 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 06:53:51 +00:00
Evan Cheng
296925dc16 Fix PR5024. LiveVariables physical register defs should *commit* only after all 
of the defs are processed.
Also fix a implicit_def propagation bug: a implicit_def of a physical register
should be applied to uses of the sub-registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82616 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 06:28:31 +00:00
Evan Cheng
f7cd853071 Fix a obvious logic error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82610 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 05:23:19 +00:00
Gabor Greif
4136e7b90e pretty mechanical changes to match coding guidelines (blessed by sabre on IRC) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82603 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 02:46:12 +00:00
Chris Lattner
c72efbeb42 errorstr can be null, don't unconditionally set it. Only report that 
"the jit has not been linked in" if the interpreter failed.

This fixes a unit test failure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82601 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 02:03:49 +00:00
Chris Lattner
fbd39762e9 Make EngineBuilder return more error codes, by KS Sreeram. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82600 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 01:46:04 +00:00
Dan Gohman
cd26ec5f3c Give MachineMemOperand an operator<<, factoring out code from 
two different places for printing MachineMemOperands.

Drop the virtual from Value::dump and instead give Value a
protected virtual hook that can be overridden by subclasses
to implement custom printing. This lets printing be more
consistent, and simplifies printing of PseudoSourceValue
values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82599 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 01:33:16 +00:00
Dan Gohman
00133a7d52 Fix X86's unfoldMemoryOperand to properly handle MachineMemOperands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82597 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 01:29:41 +00:00
Mike Stump
d75e9aad24 This is overly constraining with respect to clang. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82591 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-23 00:13:30 +00:00
Erick Tryzelaar
31c6c5d58a Add examples for Kaleidoscope chapters 2 through 6. 
Conflicts:

	examples/Makefile

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82574 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 21:15:19 +00:00
Erick Tryzelaar
a4eb1a5cba Rename Kaleidoscope to show that it's for Chapter 7 of the tutorial. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82573 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 21:15:00 +00:00
Erick Tryzelaar
fd1ec5e68b Sync c++ kaleidoscope tutorial with test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82572 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 21:14:49 +00:00
Devang Patel
7815d71167 Add SetLocation() to allow IRBuilder user to set location info for an instruction already created. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82570 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 20:56:31 +00:00
Devang Patel
14433c96c6 Check exisiting dbg MDKind first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82568 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 20:54:13 +00:00
Victor Hernandez
60cfc03379 No need to verify that malloc's return type is i8*. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82561 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 18:50:03 +00:00
David Goodwin
047ae2f2ad Use early returns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82554 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 16:47:52 +00:00
Daniel Dunbar
b759865495 Revert "Don't allow formatted_ostream to be unbuffered, even if its underlying 
buffer", while we work out a solution.

Dan convinced me that making debugging annoying for him is worse than 10x being
slower for me. :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82553 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 16:33:42 +00:00
Daniel Dunbar
43fa15b451 ... missed hiding a variable for MSVC only. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82552 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 16:10:35 +00:00
Daniel Dunbar
3be2d12bde Hide MSVC specific CRT interaction behind _MSC_VER. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82551 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 15:58:35 +00:00
Mikhail Glushenkov
92d32367ef Remove the GetProcessId() call from Win32/Program.inc, take 2. 
GetProcessId() was introduced only in Windows XP, and we want to support earlier
versions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82548 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 15:40:32 +00:00
Daniel Dunbar
460a786b34 Fix commento. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82544 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 10:30:34 +00:00
Daniel Dunbar
5a461dd513 lit: When executing shell scripts internally, don't allow piped stderr on any 
commands except the last one, instead redirect the stderr to a temporary
file. This sidesteps a potential deadlocking issue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82538 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 09:50:38 +00:00
Daniel Dunbar
df3388492b Add a magic LLVM_DISABLE_CRT_DEBUG environment variable which we check in RegisterHandler and use to disable the Win32 crash dialogs. These are a major blocker to any kind of automated testing. 
Also, tweak the 'lit' test runner to set this variable unconditionally.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82537 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 09:50:28 +00:00
Evan Cheng
dace0ed8c7 Forgot this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82536 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 08:47:59 +00:00
Evan Cheng
60c7df2c93 Fix PR5024. LiveVariables::FindLastPartialDef should return a set of sub-registers that were defined by the last partial def, not just a single sub-register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82535 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 08:34:46 +00:00
Daniel Dunbar
a177492108 Initial support for running LLVM tests from cmake. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82534 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 07:38:44 +00:00
Daniel Dunbar
fb76ffbaeb Generate lit.site.cfg from a .in file, as clang does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82533 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-22 07:38:33 +00:00