Evan Cheng
82a6d23700
Fixed a coalescer bug caused by a typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48526 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-19 02:26:36 +00:00
Gordon Henriksen
dc1ce7bdc6
C and Objective Caml bindings for the various getParent methods of the IR.
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Based on Erick Tryzelaar's patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48523 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-19 01:11:35 +00:00
Evan Cheng
94202018c5
Fix live variables issues:
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1. If part of a register is re-defined, an implicit kill and an implicit def are added to denote read / mod / write. However, this should only be necessary if the register is actually read later. This is a performance issue.
2. If a sub-register is being defined, and it doesn't have a previous use, do not add a implicit kill to the last use of a super-register:
= EAX, AX<imp-use,kill>
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AX =
In this case, EAX is live but AX is killed, this is wrong and will cause the coalescer to do bad things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48521 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-19 00:52:20 +00:00
Devang Patel
c7fe32e840
Do not use virtual function to identify an analysis pass.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48520 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-19 00:48:41 +00:00
Bill Wendling
bebc3642d3
On Darwin, GCC issues a ".globl" for something that has a "visibility protected"
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attribute instead of ".protected".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48516 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 23:38:12 +00:00
Evan Cheng
586ccac4ec
Fix a x86-64 isel lowering bug that's been around forever. A x86-64 varargs function implicitly reads X86::AL, don't clobber it!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48515 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 23:36:35 +00:00
Bill Wendling
2974e49019
Temporarily revert r48491. It's breaking test/CodeGen/X86/xorl.ll.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48510 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 22:29:51 +00:00
Daniel Berlin
d3bf1aef3f
Fix PR 2160 by making sure arguments to external functions get marked as pointing to anything
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48509 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 22:22:53 +00:00
Dale Johannesen
cf49819877
Make conversions of i8/i16 to ppcf128 work.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48493 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 17:28:38 +00:00
Scott Michel
acddf9d019
Dial down gcc's warnings: don't use 0UL when 0U suffices (and when the
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variables and methods themselves only use unsigned.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48492 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 16:55:06 +00:00
Christopher Lamb
981576c818
Target independent DAG transform to use truncate for field extraction + sign extend on targets where this is profitable. Passes nightly on x86-64.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48491 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 16:46:39 +00:00
Evan Cheng
3c88d742d4
Rewrite code that propagate isDead information after a dead copy is coalesced. This remove some ugly spaghetti code and fixed a number of subtle bugs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48490 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 08:26:47 +00:00
Devang Patel
1cee94f041
Identify Analysis pass.
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Do not run analysis pass again if analysis info is still available.
This fixes PR1441.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48476 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 00:39:19 +00:00
Devang Patel
b176038f98
Update heuritics that estimates cost of call instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48474 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 23:41:20 +00:00
Dale Johannesen
257f75d0b8
Make Complex long long/double/long double work
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in ppc64 mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48459 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 17:11:08 +00:00
Chris Lattner
315123fb6a
Check in some #ifdef'd out code switching call argument
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lowering over to SparcCallingConv.td. We can't make the switch
yet because we can't say to pass f64 registers in 2 x i32 registers
with the td file yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48449 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 06:58:37 +00:00
Chris Lattner
e0b1215a92
minor cleanups
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48448 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 06:57:02 +00:00
Evan Cheng
d183307639
Unbreak JIT. Ignore TargetInstrInfo::IMPLICIT_DEF.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48447 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 06:56:52 +00:00
Owen Anderson
755ebab37d
A first attempt at updating live intervals, with code lifted from
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the coalescer. This doesn't really work, but gets us farther than
before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48446 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 06:08:26 +00:00
Chris Lattner
b26bc75213
remove dead code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48445 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 06:04:10 +00:00
Chris Lattner
98949a6d2c
Switch sparc from using LowerCallTo to using LowerOperation(CALL) like
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other targets. Use autogenerated calling conv to lower result of
calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48444 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 06:01:07 +00:00
Chris Lattner
5a65b92830
Start moving sparc to use SparcCallingConv.td, switching over
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return lowering first. This fixes a bug where the top and bottom
of i64 values were returned in the wrong registers before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48443 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 05:41:48 +00:00
Chris Lattner
d23405e6f0
split sparc lowering out into SparcISelLowering.{cpp|h} to follow
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best practices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48442 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 03:21:36 +00:00
Chris Lattner
601fe38b1e
refactor the LowerOperation code out to individual functions for
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each lowering, which is 'best practice'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48441 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 02:52:07 +00:00
Dale Johannesen
fdd3ade005
Next round of PPC32 ABI changes. Allow for gcc
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behavior where a callee thinks a param will be
present in memory, even though the ABI doc says
it doesn't have to be. Handle complex long long
and complex double (4 and 8 return regs).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48439 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 02:13:43 +00:00
Chris Lattner
349155b671
various rotate fun.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48438 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 01:47:51 +00:00
Nate Begeman
bc4efb8ac7
Add a couple missing SSE4 instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48430 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-16 21:14:46 +00:00
Gordon Henriksen
3e0c835593
C and Objective Caml bindings for the TargetData class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48422 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-16 20:08:03 +00:00
Bill Wendling
f7a91e68a8
Add assert for non-hexadecimal radixes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48421 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-16 20:05:52 +00:00
Gordon Henriksen
41ba1546eb
C and Objective Caml bindings for several scalar transforms.
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Patch originally by Erick Tryzelaar, but has been modified somewhat.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48419 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-16 16:32:40 +00:00
Gordon Henriksen
d78c0f5a72
C and Objective Caml bindings for PassManagers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48413 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-16 04:20:44 +00:00
Christopher Lamb
c929823525
Make insert_subreg a two-address instruction, vastly simplifying LowerSubregs pass. Add a new TII, subreg_to_reg, which is like insert_subreg except that it takes an immediate implicit value to insert into rather than a register.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48412 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-16 03:12:01 +00:00
Evan Cheng
20ccded7de
Remove isImplicitDef TargetInstrDesc flag.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48381 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-15 00:19:36 +00:00
Evan Cheng
da47e6e0d0
Replace all target specific implicit def instructions with a target independent one: TargetInstrInfo::IMPLICIT_DEF.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48380 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-15 00:03:38 +00:00
Gordon Henriksen
af59b105bb
Expose Module::dump via C and Ocaml.
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Patch by Erick Tryzelaar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48379 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 23:58:56 +00:00
Duncan Sands
23a1d0c161
Do not generate special entries in the dwarf eh
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table for nounwind calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48373 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 21:36:24 +00:00
Evan Cheng
c17ba8a28d
Fix PR2138. Apparently any modification to a std::multimap (including remove entries for a different key) can invalidate multimap iterators.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48371 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 20:44:01 +00:00
Chris Lattner
7e526e7544
this was removed from the Unix side.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48370 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 20:41:50 +00:00
Dan Gohman
b973d5f9b5
Update comments; getPassName no longer uses RTTI.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48369 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 18:27:04 +00:00
Dale Johannesen
8f5422c24b
Implement the real calling convention for ppc32 Altivec:
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vectors go at the end of the memory area, after all
non-vector parameters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48364 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 17:41:26 +00:00
Evan Cheng
029d9dafa0
Fix some 80 col violations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48361 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 07:46:48 +00:00
Evan Cheng
172b794cd5
Fix a number of encoding bugs. SSE 4.1 instructions MPSADBWrri, PINSRDrr, etc. have 8-bits immediate field (ImmT == Imm8).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48360 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 07:39:27 +00:00
Evan Cheng
17ed8fa63d
Add debugging stuff.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48359 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 07:13:42 +00:00
Chris Lattner
69a74ab421
Add an issue that is preventing instcombine from doing a simplification.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48356 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 06:00:19 +00:00
Duncan Sands
d1ba3338d1
Simplify using getIntPtrConstant.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48355 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 05:23:57 +00:00
Bill Wendling
b9d4f8df70
The inst combining of inttoptr into GEP with one index was using the bit size of
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the type instead of the byte size. This was causing troublesome mis-compilations.
True to form, this took 2 days to find and is a one-line fix. :-P
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48354 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 05:12:19 +00:00
Nate Begeman
5922f561c6
Tabs -> spaces
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Use getIntPtrConstant in a couple places to shorten stuff up
Handle splitting vector shuffles with undefs in the mask
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48351 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 00:53:31 +00:00
Evan Cheng
db2d773fe6
Livein copy scheduling fixes: do not coalesce physical register copies, correctly determine the safe location to insert the copies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48348 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 00:14:55 +00:00
Dan Gohman
704df9fcbd
Use SDTNone instead of duplicating it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48346 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 23:07:40 +00:00
Dan Gohman
002e5d0a17
More APInt-ification.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48344 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 22:13:53 +00:00
Owen Anderson
8a97fddbc2
Fix a bug in GVN that Duncan noticed, where we potentially need to insert a
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pointer bitcast when performing return slot optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48343 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 22:07:10 +00:00
Evan Cheng
c438f35df9
Undo tweak. It had no obvious benefit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48341 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 17:42:48 +00:00
Devang Patel
a13341737d
Remove unused GetAddressOfSymbol()
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Thanks Daniel Dunbar!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48340 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 16:55:34 +00:00
Evan Cheng
a2248682ae
Typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48337 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 08:04:35 +00:00
Evan Cheng
0099ae2468
Don't try to sink 3-address instruction if convertToThreeAddress created more than one instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48336 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 07:56:58 +00:00
Evan Cheng
f3ff6992a3
Remove an unused command line option.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48334 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 06:38:28 +00:00
Evan Cheng
875357d213
TwoAddressInstructionPass enhancement. After it converts a two address instruction into a 3-address one, sink it past the instruction that kills the read-mod-write register if its definition is used past the kill. This reduces the number of live register by one.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48333 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 06:37:55 +00:00
Christopher Lamb
6634e26aa1
Get rid of a pseudo instruction and replace it with subreg based operation on real instructions, ridding the asm printers of the hack used to do this previously. In the process, update LowerSubregs to be careful about eliminating copies that have side affects.
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Note: the coalescer will have to be careful about this too, when it starts coalescing insert_subreg nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48329 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 05:47:01 +00:00
Chris Lattner
3bdfa04cbe
Fix Path::GetMainExecutable on cygwin, patch by Sam Bishop.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48328 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 05:22:05 +00:00
Chris Lattner
a17fa28ac2
remove extraneous namespace qualifier, PR2142
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48327 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 05:17:59 +00:00
Chris Lattner
d5d94df73f
move a bunch of trivial methods to be inline.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48326 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 05:00:21 +00:00
Chris Lattner
041221c097
Various improvements suggested by Duncan
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48325 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 04:33:03 +00:00
Nick Lewycky
6e7aeb16fa
Update -mem2reg to use succ_iterator instead of iterating across TerminatorInst
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successors. This makes it support nounwind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48320 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 02:42:41 +00:00
Evan Cheng
1c9b8cf28c
Remove unused options.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48319 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 02:41:34 +00:00
Dan Gohman
59ef015c65
Eliminate a few unnecessary uses of dynamic_cast.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48318 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 02:08:36 +00:00
Dan Gohman
9769cee9f7
Fix a typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48317 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 01:58:48 +00:00
Dan Gohman
5fe6e33ef8
Don't redundantly clear std::vector members in destructors.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48316 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 01:57:34 +00:00
Dan Gohman
0961ec1afe
Change PMTopLevelManager's PassManagers vector element type from
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Pass* to PMDataManager*. PMDataManager is more specific than Pass,
so this more accurately describes the objects that are being stored.
This eliminates the need for several dynamic_casts to PMDataManager*.
It does introduce one dynamic_cast though, in dumpPasses(). Give
this one a comment describing why a dynamic_cast is being used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48315 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 01:48:32 +00:00
Dan Gohman
c2f12ab5e5
Change PMStack::push to accept a PMDataManager* instead of
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a Pass*. PMDataManager* is what it actually holds, so this
makes it clearer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48314 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 01:21:31 +00:00
Evan Cheng
b27087f5aa
Refactor some code out of MachineSink into a MachineInstr query.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48311 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 00:44:09 +00:00
Dale Johannesen
d75686a471
Do not promote float params to double in varargs
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calls here. This was done earlier for params in
the varargs part of the params; any float params
that survive to here are in the non-varargs part,
and must not be promoted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48310 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 23:40:01 +00:00
Evan Cheng
9e23336d0c
Experimental scheduler change to schedule / coalesce the copies added for function livein's. Take 2008-03-10-RegAllocInfLoop.ll, the schedule looks like this after these copies are inserted:
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entry: 0x12049d0, LLVM BB @0x1201fd0, ID#0:
Live Ins: %EAX %EDX %ECX
%reg1031<def> = MOVPC32r 0
%reg1032<def> = ADD32ri %reg1031, <es:_GLOBAL_OFFSET_TABLE_>, %EFLAGS<imp-def>
%reg1028<def> = MOV32rr %EAX
%reg1029<def> = MOV32rr %EDX
%reg1030<def> = MOV32rr %ECX
%reg1027<def> = MOV8rm %reg0, 1, %reg0, 0, Mem:LD(1,1) [0x1201910 + 0]
%reg1025<def> = MOV32rr %reg1029
%reg1026<def> = MOV32rr %reg1030
%reg1024<def> = MOV32rr %reg1028
The copies unnecessarily increase register pressure and it will end up requiring a physical register to be spilled.
With -schedule-livein-copies:
entry: 0x12049d0, LLVM BB @0x1201fa0, ID#0:
Live Ins: %EAX %EDX %ECX
%reg1031<def> = MOVPC32r 0
%reg1032<def> = ADD32ri %reg1031, <es:_GLOBAL_OFFSET_TABLE_>, %EFLAGS<imp-def>
%reg1024<def> = MOV32rr %EAX
%reg1025<def> = MOV32rr %EDX
%reg1026<def> = MOV32rr %ECX
%reg1027<def> = MOV8rm %reg0, 1, %reg0, 0, Mem:LD(1,1) [0x12018e0 + 0]
Much better!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48307 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 22:19:41 +00:00
Duncan Sands
d8742eeb2f
Initial soft-float support for LegalizeTypes. I rewrote
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the fcopysign expansion from LegalizeDAG to get rid of
what seems to be a bug: the use of sign extension means
that when copying the sign bit from an f32 to an f64,
the upper 32 bits of the f64 (now an i64) are set, not
just the top bit... I also generalized it to work for
any sized floating point types, and removed the bogosity:
SDOperand Mask1 = (SrcVT == MVT::f64)
? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT)
: DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT);
Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1);
(here SrcNVT is an integer with the same size as SrcVT).
As far as I can see this takes a 1 << 63, converts to
a double, converts that to a floating point constant
then converts that to an integer constant, ending up
with... 1 << 63 as an integer constant! So I just
generate this integer constant directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48305 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 21:27:04 +00:00
Dan Gohman
b576931ca2
Change VirtRegMap's dump to dump to cerr, not DOUT, so that it
...
can be called from within a debuger without having -debug specified
on the command-line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48298 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 20:52:10 +00:00
Dan Gohman
39e33acf0a
Fix typos in comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48297 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 20:50:04 +00:00
Duncan Sands
87a8615015
Fix typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48295 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 20:35:19 +00:00
Duncan Sands
25eb043759
Don't try to extract an i32 from an f64. This
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getCopyToParts problem was noticed by the new
LegalizeTypes infrastructure. In order to avoid
this kind of thing in the future I've added a
check that EXTRACT_ELEMENT is only used with
integers. Once LegalizeTypes is up and running
most likely BUILD_PAIR and EXTRACT_ELEMENT can
be removed, in favour of using apints instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48294 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 20:30:08 +00:00
Chris Lattner
58d74910c6
Reimplement the parameter attributes support, phase #1 . hilights:
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1. There is now a "PAListPtr" class, which is a smart pointer around
the underlying uniqued parameter attribute list object, and manages
its refcount. It is now impossible to mess up the refcount.
2. PAListPtr is now the main interface to the underlying object, and
the underlying object is now completely opaque.
3. Implementation details like SmallVector and FoldingSet are now no
longer part of the interface.
4. You can create a PAListPtr with an arbitrary sequence of
ParamAttrsWithIndex's, no need to make a SmallVector of a specific
size (you can just use an array or scalar or vector if you wish).
5. All the client code that had to check for a null pointer before
dereferencing the pointer is simplified to just access the
PAListPtr directly.
6. The interfaces for adding attrs to a list and removing them is a
bit simpler.
Phase #2 will rename some stuff (e.g. PAListPtr) and do other less
invasive changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48289 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 17:45:29 +00:00
Owen Anderson
6bb0bd52ec
Improve the return slot optimization to be both more aggressive (not limited to sret parameters), and
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safer (when the passed pointer might be invalid). Thanks to Duncan and Chris for the idea behind this,
and extra thanks to Duncan for helping me work out the trap-safety.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48280 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 07:37:44 +00:00
Evan Cheng
c8e3b147ee
Clean up my own mess.
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X86 lowering normalize vector 0 to v4i32. However DAGCombine can fold (sub x, x) -> 0 after legalization. It can create a zero vector of a type that's not expected (e.g. v8i16). We don't want to disable the optimization since leaving a (sub x, x) is really bad. Add isel patterns for other types of vector 0 to ensure correctness. It's highly unlikely to happen other than in bugpoint reduced test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48279 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 07:02:50 +00:00
Owen Anderson
dfd07eab24
We also need to collect the VN IDs for the PHI instructions for later updating.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48278 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 04:22:57 +00:00
Owen Anderson
0031671b41
When we're determining what registers to coallesce, track the VNInfo IDs for the definitions that
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feed the PHI instructions. We'll need these IDs in order to update LiveIntervals properly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48277 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 03:13:29 +00:00
Chris Lattner
461edd937e
when the bitcode reader is referencing a paramattr, make sure to bump its refcount.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48276 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 02:25:52 +00:00
Evan Cheng
0cec956d81
Total brain cramp.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48274 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 02:05:05 +00:00
Chris Lattner
d5f1627d2c
This is a simple fix for getting error messages from dlerror in
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LoadLibraryPermanently. The current code modifies the value of a pointer
that is passed by value, so the caller never gets the message.
Patch by Julien Lerouge!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48270 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 00:50:01 +00:00
Dale Johannesen
404d99010d
One more bit of Altivec parameter passing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48269 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 00:49:20 +00:00
Anton Korobeynikov
91342d8873
Be backward compatible
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48268 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 00:49:19 +00:00
Devang Patel
045497ae27
Check multiple return values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48267 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 00:32:32 +00:00
Dale Johannesen
75092de483
Implement Altivec passing to varargs functions on ppc.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48264 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 00:22:17 +00:00
Evan Cheng
17d5f5496c
Set NextMII after issuing a physical register spill.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48263 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 00:14:07 +00:00
Devang Patel
8f9b551147
Fix attribute handling.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48262 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 00:07:03 +00:00
Evan Cheng
4191b96f41
Minor debug output bug.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48261 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 00:02:46 +00:00
Anton Korobeynikov
5241957b1f
Ultimately resolve aliases during linking, if possible
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48259 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 22:51:09 +00:00
Anton Korobeynikov
4d86e2a6b8
Correctly propagate thread-local flag from aliasee to alias. This fixes PR2137
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48257 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 22:38:53 +00:00
Dan Gohman
bfae83139d
Use PassManagerBase instead of FunctionPassManager for functions
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that merely add passes. This allows them to be used with either
FunctionPassManager or PassManager, or even with a custom new
kind of pass manager.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48256 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 22:29:46 +00:00
Anton Korobeynikov
e846dd89c1
Add helper for ultimate aliasee resoltion
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48255 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 22:28:56 +00:00
Devang Patel
7db30ba701
Handle multiple ret values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48254 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 22:24:29 +00:00
Devang Patel
a0238778db
Initialize.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48253 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 22:08:21 +00:00
Dan Gohman
882d87d168
Check to see if a two-entry PHI block can be simplified
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before trying to merge the block into its predecessors.
This allows two-entry-phi-return.ll to be simplified
into a single basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48252 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 21:53:06 +00:00
Anton Korobeynikov
22c9e65643
Honour aliases visibility during asm emission
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48249 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 21:41:14 +00:00