Dale Johannesen [Thu, 24 Sep 2009 23:37:40 +0000 (23:37 +0000)]
Reenable sqrt IR generation test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82731
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Mike Stump [Thu, 24 Sep 2009 23:21:26 +0000 (23:21 +0000)]
Delete space after function name, before (, reflow a comment and
delete a few blank lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82729
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Mike Stump [Thu, 24 Sep 2009 23:11:08 +0000 (23:11 +0000)]
Fix spacing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82727
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Chris Lattner [Thu, 24 Sep 2009 21:47:32 +0000 (21:47 +0000)]
add and document regex support for FileCheck. You can now do stuff like:
; CHECK: movl {{%e[a-z][xi]}}, %eax
or whatever.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82717
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Chris Lattner [Thu, 24 Sep 2009 21:45:57 +0000 (21:45 +0000)]
unconditionally request MMI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82716
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Chris Lattner [Thu, 24 Sep 2009 21:44:20 +0000 (21:44 +0000)]
wrap long lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82715
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Chris Lattner [Thu, 24 Sep 2009 20:45:07 +0000 (20:45 +0000)]
Use CanonicalizeInputFile to canonicalize the entire buffer containing the
CHECK strings, instead of canonicalizing the patterns directly. This allows
Pattern to just contain a StringRef instead of std::string.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82713
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Chris Lattner [Thu, 24 Sep 2009 20:39:13 +0000 (20:39 +0000)]
change 'not' matching to use Pattern, move pattern parsing logic into
the Pattern class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82712
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Chris Lattner [Thu, 24 Sep 2009 20:25:55 +0000 (20:25 +0000)]
refactor out the match string into its own Pattern class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82711
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Bob Wilson [Thu, 24 Sep 2009 20:23:02 +0000 (20:23 +0000)]
Convert to FileCheck.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82710
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David Goodwin [Thu, 24 Sep 2009 20:22:50 +0000 (20:22 +0000)]
Make the end-of-itinerary mark explicit. Some cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82709
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Dan Gohman [Thu, 24 Sep 2009 20:20:08 +0000 (20:20 +0000)]
Add nounwind to this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82708
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Chris Lattner [Thu, 24 Sep 2009 20:15:51 +0000 (20:15 +0000)]
tidy up, fix a memory leak in Regex::isValid
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82707
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Dale Johannesen [Thu, 24 Sep 2009 18:38:21 +0000 (18:38 +0000)]
Clarify that llvm attaches C language semantics to
functions with names that match the C library.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82701
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Torok Edwin [Thu, 24 Sep 2009 18:33:42 +0000 (18:33 +0000)]
Constant propagating byval pointer is safe if function is readonly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82700
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Victor Hernandez [Thu, 24 Sep 2009 17:47:49 +0000 (17:47 +0000)]
Auto-upgrade malloc instructions to malloc calls.
Reviewed by Devang Patel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82694
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Bob Wilson [Thu, 24 Sep 2009 16:42:27 +0000 (16:42 +0000)]
Fix a hypothetical problem for targets with StackGrowsUp and a non-zero
LocalAreaOffset. (We don't have any of those right now.)
PEI::calculateFrameObjectOffsets includes the absolute value of the
LocalAreaOffset in the cumulative offset value used to calculate the
stack frame size. It then adds the raw value of the LocalAreaOffset
to the stack size. For a StackGrowsDown target, that raw value is negative
and has the effect of cancelling out the absolute value that was added
earlier, but that obviously won't work for a StackGrowsUp target. Change
to subtract the absolute value of the LocalAreaOffset.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82693
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Devang Patel [Thu, 24 Sep 2009 16:19:11 +0000 (16:19 +0000)]
Move parent assertion check before metadata deletion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82692
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Torok Edwin [Thu, 24 Sep 2009 09:47:18 +0000 (09:47 +0000)]
Don't constant propagate byval pointers, since they are not really pointers, but
rather structs passed by value.
This fixes PR5038.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82689
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Daniel Dunbar [Thu, 24 Sep 2009 06:23:57 +0000 (06:23 +0000)]
Add count/not tools as executables.
- Apparently, I'm willing to do incredibly stupid things in the name of portability.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82685
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Chris Lattner [Thu, 24 Sep 2009 05:44:53 +0000 (05:44 +0000)]
unconditionally compute MMI even if the target doesn't support EH or Debug info, because the target may use it for other things, this fixes PR5036
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82684
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Chris Lattner [Thu, 24 Sep 2009 05:38:36 +0000 (05:38 +0000)]
reapply r82348 with a fix, thanks Jeffrey.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82683
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Evan Cheng [Thu, 24 Sep 2009 02:27:09 +0000 (02:27 +0000)]
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
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Evan Cheng [Thu, 24 Sep 2009 02:15:22 +0000 (02:15 +0000)]
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
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Jeffrey Yasskin [Thu, 24 Sep 2009 01:14:07 +0000 (01:14 +0000)]
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
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Dale Johannesen [Wed, 23 Sep 2009 22:05:24 +0000 (22:05 +0000)]
A minor improvment in accuracy to inline cost
computation, and some cosmetics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82660
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Dale Johannesen [Wed, 23 Sep 2009 21:46:36 +0000 (21:46 +0000)]
Disable test; what it's testing for is wrong.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82658
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David Goodwin [Wed, 23 Sep 2009 21:38:08 +0000 (21:38 +0000)]
Checkpoint NEON scheduling itineraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82657
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Dan Gohman [Wed, 23 Sep 2009 21:07:02 +0000 (21:07 +0000)]
Use getStoreSize() instead of getStoreSizeInBits()/8.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82656
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Dan Gohman [Wed, 23 Sep 2009 21:06:36 +0000 (21:06 +0000)]
Spruce up some comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82655
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Dan Gohman [Wed, 23 Sep 2009 21:02:20 +0000 (21:02 +0000)]
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
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Dan Gohman [Wed, 23 Sep 2009 20:59:10 +0000 (20:59 +0000)]
Add an EVT::getStoreSize function, like getStoreSizeInBits but in bytes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82653
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Jakob Stoklund Olesen [Wed, 23 Sep 2009 20:57:55 +0000 (20:57 +0000)]
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
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Bob Wilson [Wed, 23 Sep 2009 20:57:02 +0000 (20:57 +0000)]
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
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Dan Gohman [Wed, 23 Sep 2009 20:40:16 +0000 (20:40 +0000)]
Correct a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82648
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Devang Patel [Wed, 23 Sep 2009 20:33:51 +0000 (20:33 +0000)]
Delete attached metadata when an instruction is deleted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82647
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Anton Korobeynikov [Wed, 23 Sep 2009 19:04:09 +0000 (19:04 +0000)]
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
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Bob Wilson [Wed, 23 Sep 2009 18:53:19 +0000 (18:53 +0000)]
Edit a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82641
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Devang Patel [Wed, 23 Sep 2009 18:32:25 +0000 (18:32 +0000)]
Do not leave behind metadata while cloning an instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82638
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Evan Cheng [Wed, 23 Sep 2009 18:20:27 +0000 (18:20 +0000)]
Add nounwind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82637
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Devang Patel [Wed, 23 Sep 2009 17:20:43 +0000 (17:20 +0000)]
s/*Location/*DebugLocation/g
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82635
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Jeffrey Yasskin [Wed, 23 Sep 2009 17:05:42 +0000 (17:05 +0000)]
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
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David Goodwin [Wed, 23 Sep 2009 16:35:25 +0000 (16:35 +0000)]
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
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Benjamin Kramer [Wed, 23 Sep 2009 11:48:57 +0000 (11:48 +0000)]
Fix a struct/class mismatch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82622
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John McCall [Wed, 23 Sep 2009 06:53:51 +0000 (06:53 +0000)]
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
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Evan Cheng [Wed, 23 Sep 2009 06:28:31 +0000 (06:28 +0000)]
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
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Evan Cheng [Wed, 23 Sep 2009 05:23:19 +0000 (05:23 +0000)]
Fix a obvious logic error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82610
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Gabor Greif [Wed, 23 Sep 2009 02:46:12 +0000 (02:46 +0000)]
pretty mechanical changes to match coding guidelines (blessed by sabre on IRC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82603
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Chris Lattner [Wed, 23 Sep 2009 02:03:49 +0000 (02:03 +0000)]
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
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Chris Lattner [Wed, 23 Sep 2009 01:46:04 +0000 (01:46 +0000)]
Make EngineBuilder return more error codes, by KS Sreeram.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82600
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Dan Gohman [Wed, 23 Sep 2009 01:33:16 +0000 (01:33 +0000)]
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
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Dan Gohman [Wed, 23 Sep 2009 01:29:41 +0000 (01:29 +0000)]
Fix X86's unfoldMemoryOperand to properly handle MachineMemOperands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82597
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Mike Stump [Wed, 23 Sep 2009 00:13:30 +0000 (00:13 +0000)]
This is overly constraining with respect to clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82591
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Erick Tryzelaar [Tue, 22 Sep 2009 21:15:19 +0000 (21:15 +0000)]
Add examples for Kaleidoscope chapters 2 through 6.
Conflicts:
examples/Makefile
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82574
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Erick Tryzelaar [Tue, 22 Sep 2009 21:15:00 +0000 (21:15 +0000)]
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
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Erick Tryzelaar [Tue, 22 Sep 2009 21:14:49 +0000 (21:14 +0000)]
Sync c++ kaleidoscope tutorial with test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82572
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Devang Patel [Tue, 22 Sep 2009 20:56:31 +0000 (20:56 +0000)]
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
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Devang Patel [Tue, 22 Sep 2009 20:54:13 +0000 (20:54 +0000)]
Check exisiting dbg MDKind first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82568
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Victor Hernandez [Tue, 22 Sep 2009 18:50:03 +0000 (18:50 +0000)]
No need to verify that malloc's return type is i8*.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82561
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David Goodwin [Tue, 22 Sep 2009 16:47:52 +0000 (16:47 +0000)]
Use early returns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82554
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Daniel Dunbar [Tue, 22 Sep 2009 16:33:42 +0000 (16:33 +0000)]
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
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Daniel Dunbar [Tue, 22 Sep 2009 16:10:35 +0000 (16:10 +0000)]
... missed hiding a variable for MSVC only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82552
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Daniel Dunbar [Tue, 22 Sep 2009 15:58:35 +0000 (15:58 +0000)]
Hide MSVC specific CRT interaction behind _MSC_VER.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82551
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Mikhail Glushenkov [Tue, 22 Sep 2009 15:40:32 +0000 (15:40 +0000)]
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
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Daniel Dunbar [Tue, 22 Sep 2009 10:30:34 +0000 (10:30 +0000)]
Fix commento.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82544
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Daniel Dunbar [Tue, 22 Sep 2009 09:50:38 +0000 (09:50 +0000)]
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
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Daniel Dunbar [Tue, 22 Sep 2009 09:50:28 +0000 (09:50 +0000)]
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
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Evan Cheng [Tue, 22 Sep 2009 08:47:59 +0000 (08:47 +0000)]
Forgot this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82536
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Evan Cheng [Tue, 22 Sep 2009 08:34:46 +0000 (08:34 +0000)]
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
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Daniel Dunbar [Tue, 22 Sep 2009 07:38:44 +0000 (07:38 +0000)]
Initial support for running LLVM tests from cmake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82534
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Daniel Dunbar [Tue, 22 Sep 2009 07:38:33 +0000 (07:38 +0000)]
Generate lit.site.cfg from a .in file, as clang does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82533
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Daniel Dunbar [Tue, 22 Sep 2009 07:38:23 +0000 (07:38 +0000)]
Use Compiler.h macro instead of __attribute__.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82532
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Daniel Dunbar [Tue, 22 Sep 2009 06:09:37 +0000 (06:09 +0000)]
CMake: Fix definition of LTDL_SHLIB_EXT for Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82530
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Daniel Dunbar [Tue, 22 Sep 2009 06:09:31 +0000 (06:09 +0000)]
Fix llvm-config --src-root and --obj-root for CMake builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82529
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Daniel Dunbar [Tue, 22 Sep 2009 06:09:22 +0000 (06:09 +0000)]
llvm-config: Remove unused variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82528
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Daniel Dunbar [Tue, 22 Sep 2009 06:09:13 +0000 (06:09 +0000)]
Actually use the arguments with the resolved executable path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82527
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Daniel Dunbar [Tue, 22 Sep 2009 04:44:56 +0000 (04:44 +0000)]
Revert "Get rid of GetProcessId in Win32/Program.inc.", this breaks
ExecuteAndWait.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82522
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Daniel Dunbar [Tue, 22 Sep 2009 04:44:37 +0000 (04:44 +0000)]
lit: Don't use close_fds=True on Windows.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82521
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Daniel Dunbar [Tue, 22 Sep 2009 04:44:26 +0000 (04:44 +0000)]
lit: When executing commands internally, perform PATH resolution ourselves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82520
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Daniel Dunbar [Tue, 22 Sep 2009 03:34:53 +0000 (03:34 +0000)]
Switch FoldingSet::AddString to StringRef based API.
- This also fixes a dereference of std::string::end, which makes MSVC unhappy and was causing all the static analyzer clang tests to fail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82517
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Daniel Dunbar [Tue, 22 Sep 2009 03:34:40 +0000 (03:34 +0000)]
Workaround what I believe is an MSVC bug where it emits a definition for a
static const class member into each translation unit, with external linkage???
- If someone understands this issue better, please clue me in, I haven't
consulted the standard yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82516
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Daniel Dunbar [Tue, 22 Sep 2009 02:03:18 +0000 (02:03 +0000)]
Switch DIDescriptor to use a TrackingVH. - This makes it much safer to work with debug info, since it was extraordinarily easy to have dangling pointers thanks to MDNode uniquing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82507
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Daniel Dunbar [Tue, 22 Sep 2009 02:02:33 +0000 (02:02 +0000)]
Add a TrackingVH value handle.
This is designed for tracking a value even when it might move (like WeakVH), but it is an error to delete the referenced value (unlike WeakVH0. TrackingVH is templated like AssertingVH on the tracked Value subclass, it is an error to RAUW a tracked value to an incompatible type.
For implementation reasons the latter error is only diagnosed on accesses to a mis-RAUWed TrackingVH, because we don't want a virtual interface in a templated class.
The former error is also only diagnosed on access, so that clients are allowed to delete a tracked value, as long as they don't use it. This makes it easier for the client to reason about destruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82506
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Evan Cheng [Tue, 22 Sep 2009 01:48:19 +0000 (01:48 +0000)]
Fix a pasto. Also simplify for Bill's benefit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82505
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Evan Cheng [Tue, 22 Sep 2009 00:29:40 +0000 (00:29 +0000)]
Minor bug fix. LowerSubregs should translate
%S0<def> = EXTRACT_SUBREG %Q0<kill>, 1
to
%S0<def> = IMPLICIT_DEF %Q0<imp-use,kill>
Implicit_def does not *read* any register so the operand should be marked "implicit". The missing "implicit" marker on the operand is wrong, but it doesn't actually break anything.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82503
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Chris Lattner [Mon, 21 Sep 2009 22:39:35 +0000 (22:39 +0000)]
Fix PR5023: The instruction form of DominatorTree::dominates did not
take into consideration that the result of an invoke is only valid in
the normal dest, not the unwind dest. This caused 'PHINode::hasConstantValue'
to return true in an invalid situation, causing mem2reg to delete a phi that
was actually needed. This caused a crash building 483.xalancbmk.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82491
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Chris Lattner [Mon, 21 Sep 2009 22:30:50 +0000 (22:30 +0000)]
move DominatorTree::dominates for instructions out of line,
no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82490
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Chris Lattner [Mon, 21 Sep 2009 22:27:34 +0000 (22:27 +0000)]
tidy up
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82489
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Chris Lattner [Mon, 21 Sep 2009 22:26:02 +0000 (22:26 +0000)]
tidy up
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82488
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Evan Cheng [Mon, 21 Sep 2009 21:12:25 +0000 (21:12 +0000)]
Clean up spill weight computation. Also some changes to give loop induction
variable increment / decrement slighter high priority.
This has major impact on some micro-benchmarks. On MultiSource/Applications
and spec tests, it's a minor win. It also reduce 256.bzip instruction count
by 8%, 55 on 164.gzip on i386 / Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82485
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David Goodwin [Mon, 21 Sep 2009 20:52:17 +0000 (20:52 +0000)]
Add Cortex-A8 VFP model.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82483
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Dan Gohman [Mon, 21 Sep 2009 19:47:04 +0000 (19:47 +0000)]
Change MachineMemOperand's alignment value to be the alignment of
the base pointer, without the offset. This matches MemSDNode's
new alignment behavior, and holds more interesting information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82473
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Dan Gohman [Mon, 21 Sep 2009 18:32:20 +0000 (18:32 +0000)]
Add a comment mentioning the rdar number associated with this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82471
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Dan Gohman [Mon, 21 Sep 2009 18:30:38 +0000 (18:30 +0000)]
Add support for rematerializing FsFLD0SS and FsFLD0SD as constant-pool
loads in order to reduce register pressure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82470
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Dan Gohman [Mon, 21 Sep 2009 18:03:22 +0000 (18:03 +0000)]
Recognize SSE min and max opportunities in even more cases.
And fix a bug with the behavior of min/max instructions formed from
fcmp uge comparisons.
Also, use FiniteOnlyFPMath() for this code instead of UnsafeFPMath,
as it is more specific.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82466
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Dan Gohman [Mon, 21 Sep 2009 17:58:09 +0000 (17:58 +0000)]
Fix the offset values for these memoperands. For frame objects, the
PseudoSourceValue already effectively represents the offset from the
frame base, so the actual offset should not be added to it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82465
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Chris Lattner [Mon, 21 Sep 2009 17:55:47 +0000 (17:55 +0000)]
big endian systems shift by bits too, hopefully this will fix the ppc
bootstrap problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82464
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Dan Gohman [Mon, 21 Sep 2009 17:54:42 +0000 (17:54 +0000)]
Nick pointed out that DominanceFrontier and DominanceTree are preserved
by setPreservesCFG().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82463
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Dan Gohman [Mon, 21 Sep 2009 17:53:35 +0000 (17:53 +0000)]
Remove the special-case for constants in PHI nodes; it's not really
helpful, and it didn't correctly handle the case of constants input
to PHIs for backedges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82462
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Chris Lattner [Mon, 21 Sep 2009 17:24:04 +0000 (17:24 +0000)]
fix PR5016, a crash I introduced in GVN handing first class
arrays and structs, which cannot be bitcast to integers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82460
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