Chris Lattner
88c1baa50c
add a micro optzn.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50681 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 23:19:45 +00:00
Mon P Wang
ab3e747c64
Improved generated code for atomic operators
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50677 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 22:56:23 +00:00
Evan Cheng
71f489d728
Code clean up. No functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50675 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 22:12:23 +00:00
Bill Wendling
ac17822206
Fix: Some classes were derived from a class in an anonymous namespace, but they
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themselves weren't in the anonymous namespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50673 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 21:37:59 +00:00
Chris Lattner
8554cc2ea7
Fix a crash when threading a block that includes a MRV call result.
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DemoteRegToStack doesn't work with MRVs yet, because it relies on the
ability to load/store things.
This fixes PR2285.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 20:21:22 +00:00
Mon P Wang
63307c335a
Added addition atomic instrinsics and, or, xor, min, and max.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50663 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 19:05:59 +00:00
Dan Gohman
94bbdc8c25
Fix IsLinux being uninitialized on non-Linux targets.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50660 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 18:43:07 +00:00
Evan Cheng
34cd4a484e
Fix more -Wshorten-64-to-32 warnings.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50659 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 18:30:58 +00:00
Anton Korobeynikov
aa57a7f7a1
Fix 80col violation
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50654 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 17:08:59 +00:00
Dan Gohman
87c3d4173e
Fix a bug in the ELF writer that caused it to produce malformed
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ELF headers. The ELF writer still isn't generally usable though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50652 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 16:48:32 +00:00
Dan Gohman
600bf16cf7
Use a dedicated IsLinux flag instead of an ELFLinux TargetType.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50649 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 16:11:31 +00:00
Dan Gohman
a779a9899a
Add AsmPrinter support for emitting a directive to declare that
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the code being generated does not require an executable stack.
Also, add target-specific code to make use of this on Linux
on x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50634 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05 00:28:39 +00:00
Anton Korobeynikov
6625eff8ec
Add General Dynamic TLS model for X86-64. Some parts looks really ugly (look for tlsaddr pattern),
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but should work. Work is in progress, more models will follow
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50630 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-04 21:36:32 +00:00
Chris Lattner
cc81d15605
regenerate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50621 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-04 17:18:47 +00:00
Gordon Henriksen
16c1f44d91
Use (void) instead of () in C code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50620 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-04 12:55:34 +00:00
Evan Cheng
5759f97f50
Select vector shift with non-immediate i32 shift amount operand by first moving the operand into the right register.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50619 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-04 09:15:50 +00:00
Torok Edwin
529bd53411
processStore may delete the instruction, avoid
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using dyn_cast<> on already freed memory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50618 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-04 08:51:25 +00:00
Torok Edwin
f6055806d4
Implement destructor for PostDominatorTree to eliminate a memory leak.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50607 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-03 20:25:26 +00:00
Devang Patel
7b39969528
Handle multiple return values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50604 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-03 01:12:15 +00:00
Evan Cheng
22b942aa4d
Add separate intrinsics for MMX / SSE shifts with i32 integer operands. This allow us to simplify the horribly complicated matching code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50601 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-03 00:52:09 +00:00
Devang Patel
f944c9a19e
Do not sink getresult.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50600 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-03 00:36:30 +00:00
Devang Patel
201ebe3899
Add assert.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50596 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 22:13:33 +00:00
Dan Gohman
1d9cd50677
Fix a mistake in the computation of leading zeros for udiv.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50591 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 21:30:02 +00:00
Evan Cheng
48e8c80e17
Suppress -Wshorten-64-to-32 warnings for 64-bit hosts.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50590 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 21:15:08 +00:00
Chris Lattner
e818f770bb
strength reduce exp2 into ldexp, rdar://5852514
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50586 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 18:43:35 +00:00
Chris Lattner
4446997e0a
add a FIXME so we remember to eventually remove this code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50582 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 17:18:31 +00:00
Evan Cheng
082f1161b1
Undo r50574. We are already ensuring the folded load address is 16-byte aligned.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50578 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 17:01:01 +00:00
Evan Cheng
b609339a5c
80 column violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50575 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 07:53:32 +00:00
Evan Cheng
ef6a512489
Not safe folding a load + FsXORPSrr into FsXORPSrm. It's loading a FR64 value but the load folding variant expects a 16-byte aligned address.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50574 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 07:50:58 +00:00
Bill Wendling
643310da6d
Porting r50563 from Tak to mainline.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50564 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 00:43:20 +00:00
Dan Gohman
7ceda160b3
Fix a typo in a comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50562 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 00:05:03 +00:00
Dan Gohman
1fa850bdd2
Use push_back(...) instead of resize(1, ...), per review feedback.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50561 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02 00:03:54 +00:00
Dan Gohman
cba3b44d25
Fix uninitialized uses of the FPC variable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50558 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 23:40:44 +00:00
Dale Johannesen
796026711d
Don't try to create PHIs of struct types. Fallout
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from x86-64 calling convention work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50545 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 22:27:44 +00:00
Dan Gohman
e85b7585e9
Fix an overaggressive SimplifyDemandedBits optimization on urem. This
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fixes the 254.gap regression on x86 and the 403.gcc regression on x86-64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50537 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 19:13:24 +00:00
Chris Lattner
6bf30ab347
don't randomly miscompile seto/setuo just because we are in
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ffastmath mode. This fixes rdar://5902801, a miscompilation
of gcc.dg/builtins-8.c.
Bill, please pull this into Tak.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50523 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 07:26:11 +00:00
Chris Lattner
56b4f2bdf6
1) add '-debug' output
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2) Return NULL instead of false in several places for tidiness.
3) fix a bug optimizing sprintf(p, "%c", x)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50521 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 06:39:12 +00:00
Chris Lattner
fd1cbbe9cf
Delete the IPO simplify-libcalls and completely reimplement it as
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a FunctionPass. This makes it simpler, fixes dozens of bugs, adds
a couple of minor features, and shrinks is considerably: from
2214 to 1437 lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50520 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01 06:25:24 +00:00
Chris Lattner
5c5f1095ec
fix a bug in my previous patch, a classic =/== bug.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50483 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 15:27:09 +00:00
Arnold Schwaighofer
30e62c098b
Tail call optimization improvements:
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Move platform independent code (lowering of possibly overwritten
arguments, check for tail call optimization eligibility) from
target X86ISelectionLowering.cpp to TargetLowering.h and
SelectionDAGISel.cpp.
Initial PowerPC tail call implementation:
Support ppc32 implemented and tested (passes my tests and
test-suite llvm-test).
Support ppc64 implemented and half tested (passes my tests).
On ppc tail call optimization is performed if
caller and callee are fastcc
call is a tail call (in tail call position, call followed by ret)
no variable argument lists or byval arguments
option -tailcallopt is enabled
Supported:
* non pic tail calls on linux/darwin
* module-local tail calls on linux(PIC/GOT)/darwin(PIC)
* inter-module tail calls on darwin(PIC)
If constraints are not met a normal call will be emitted.
A test checking the argument lowering behaviour on x86-64 was added.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50477 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 09:16:33 +00:00
Gabor Greif
8811080a65
fcntl.h is pretty standard on unix (without the sys/)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50475 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 08:53:22 +00:00
Owen Anderson
5023aa58ca
This condition got inverted accidentally.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50473 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 07:16:33 +00:00
Chris Lattner
69ea9d2308
move lowering of llvm.memset -> store from simplify libcalls
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to instcombine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50472 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 06:39:11 +00:00
Chris Lattner
12e6d20059
add a method for comparing to see if a value has a specified name.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50465 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 03:55:40 +00:00
Chris Lattner
ea8650cddf
use string length computation to generalize several xforms.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50464 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 03:07:53 +00:00
Dale Johannesen
21d972ad04
Add comments for previous patch as requested.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50463 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 00:43:29 +00:00
Scott Michel
203b2d6eed
Bug fixes and updates for CellSPU, syncing up with trunk. Most notable
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fixes are target-specific lowering of frame indices, fix constants generated
for the FSMBI instruction, and fixing SPUTargetLowering::computeMaskedBitsFor-
TargetNode().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50462 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 00:30:08 +00:00
Scott Michel
82747a5484
Fix custom target lowering for zero/any/sign_extend: make sure that
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DAG.UpdateNodeOperands() is called before (not after) the call to
TLI.LowerOperation().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50461 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 00:26:38 +00:00
Dale Johannesen
7b251e0474
Make eh_frame objects by 8-byte aligned on 64-bit
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targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50451 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 22:58:20 +00:00
Owen Anderson
02e9988020
Revert r50441. The original code was correct. Add some more comments so that I don't make the same mistake in the future.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50446 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 21:51:00 +00:00
Owen Anderson
9dcace3caf
Fix a bug in memcpyopt where the memcpy-memcpy transform was never being applied because
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we were checking for it in the wrong order. This caused a miscompilation because the
return slot optimization assumes that the call it is dealing with is NOT a memcpy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50444 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 21:26:06 +00:00
Owen Anderson
7b6fafaa8d
We should be returning true here since we've changed the function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50442 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 21:02:46 +00:00
Owen Anderson
9862f31533
A lot of cleanups and documentation improvements, as well as a few corner case fixes. Most
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of this was suggested by Chris.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50441 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 20:59:33 +00:00
Owen Anderson
0396cd33ca
Rename DeadLoopElimination to LoopDeletion, part 2.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50437 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 20:06:54 +00:00
Owen Anderson
d6864fee97
Rename DeadLoopElimination to LoopDeletion, part one.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50436 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 19:58:07 +00:00
Anton Korobeynikov
966e7997b5
Don't do stupid things: doInitialization(Module&) is not applicable to ModulePass :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50433 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 18:16:22 +00:00
Chris Lattner
40700fe683
don't eliminate load from volatile value on paths where the load is dead.
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This fixes the second half of PR2262
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50430 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 17:28:22 +00:00
Chris Lattner
54545ac023
fix a subtle volatile handling bug.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50428 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 17:13:43 +00:00
Roman Levenstein
a0201d5204
Use std::set instead of std::priority_queue for the RegReductionPriorityQueue.
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This removes the existing bottleneck related to the removal of elements from
the middle of the queue.
Also fixes a subtle bug in ScheduleDAGRRList::CapturePred:
It was updating the state of the SUnit before removing it. As a result, the
comparison operators were working incorrectly and this SUnit could not be removed
from the queue properly.
Reviewed by Evan and Dan. Approved by Dan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50412 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 09:07:59 +00:00
Chris Lattner
5b222d748a
Implement more aggressive support for analyzing string length. This
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generalizes the previous code to handle the case when the string is not
an immediate to the strlen call (for example, crazy stuff like
strlen(c ? "foo" : "bart"+1) -> 3). This implements
gcc.c-torture/execute/builtins/strlen-2.c. I will generalize other
cases in simplifylibcalls to use the same routine later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50408 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 06:56:02 +00:00
Owen Anderson
5f8b344255
Clarify what we mean by a dead loop.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50406 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 06:34:55 +00:00
Chris Lattner
cea1fdd174
don't delete the last store to an alloca if the store is volatile.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50390 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 04:58:38 +00:00
Chris Lattner
3fb2968f2f
make the vector conversion magic handle multiple results.
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We now compile test2/test3 to:
_test2:
## InlineAsm Start
set %xmm0, %xmm1
## InlineAsm End
addps %xmm1, %xmm0
ret
_test3:
## InlineAsm Start
set %xmm0, %xmm1
## InlineAsm End
paddd %xmm1, %xmm0
ret
as expected.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50389 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 04:48:56 +00:00
Chris Lattner
41f6259a4b
add support for multiple return values in inline asm. This is a step
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towards PR2094. It now compiles the attached .ll file to:
_sad16_sse2:
movslq %ecx, %rax
## InlineAsm Start
%ecx %rdx %rax %rax %r8d %rdx %rsi
## InlineAsm End
## InlineAsm Start
set %eax
## InlineAsm End
ret
which is pretty decent for a 3 output, 4 input asm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50386 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 04:29:54 +00:00
Evan Cheng
8509fcf8eb
Another extract_subreg coalescing bug.
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e.g.
vr1024<2> extract_subreg vr1025, 2
If vr1024 do not have the same register class as vr1025, it's not safe to coalesce this away. For example, vr1024 might be a GPR32 while vr1025 might be a GPR64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50385 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 01:41:44 +00:00
Owen Anderson
e54cfdb32a
Add some more comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50384 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 00:45:15 +00:00
Owen Anderson
d3d5b888d9
Remove debugging code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50383 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 00:39:24 +00:00
Owen Anderson
0ff7708a5b
Add dead loop elimination, which removes dead loops for which we can compute
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the trip count.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50382 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 00:38:34 +00:00
Evan Cheng
33bf38ad88
Fix a bug in RegsForValue::getCopyToRegs() that causes cyclical scheduling units. If it's creating multiple CopyToReg nodes that are "flagged" together, it should not create a TokenFactor for it's chain outputs:
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c1, f1 = CopyToReg
c2, f2 = CopyToReg
c3 = TokenFactor c1, c2
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= user c3, ..., f2
Now that the two CopyToReg's and the user are "flagged" together. They effectively forms a single scheduling unit. The TokenFactor is now both an operand and a successor of the Flagged nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50376 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 22:07:13 +00:00
Dan Gohman
3e2dda63d0
Fix a pointer-arithmetic bug that caused 64-bit host pointer values to
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be truncated to 32 bits. This fixes the recent Benchmarks/McCat/09-vor
regression on x86-64, among other things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50372 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 20:25:15 +00:00
Dan Gohman
00acf97feb
Fix DSE to not eliminate volatile loads with no uses.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50370 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 19:51:27 +00:00
Dan Gohman
187db7b950
Evan pointed out that folding sext to zext may not be correct
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if the zext is not legal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50368 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 18:47:17 +00:00
Dan Gohman
ebc3a3a3b2
Delete an unused constructor.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50367 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 18:28:49 +00:00
Dan Gohman
10a6b7ab65
Add a comment to CreateRegForValue that clarifies the handling of
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aggregate types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50366 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 18:19:43 +00:00
Dan Gohman
0fe00906c8
Rewrite the comments for RegsForValue and its members, and
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reorder some of the members for clarity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50365 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 18:10:39 +00:00
Ted Kremenek
c9715624fa
Bug fix in BumpPtrAllocator: don't assume that all objects have the same alignment. "Bump" of the pointer for the next allocated object to be of the specified alignment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50362 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 17:58:07 +00:00
Dan Gohman
b20d4f8d49
Don't call size() on each iteration of the loop.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50361 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 17:42:03 +00:00
Gordon Henriksen
e2435da8ab
Expose parameter attributes via C bindings.
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Patch by Anders Johnsen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50360 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 17:37:06 +00:00
Dan Gohman
1f13c686df
Fix the SVOffset values for loads and stores produced by
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memcpy/memset expansion. It was a bug for the SVOffset value
to be used in the actual address calculations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50359 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 17:15:20 +00:00
Dan Gohman
23e8b71526
Teach InstCombine's ComputeMaskedBits what SelectionDAG's
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ComputeMaskedBits knows about cttz, ctlz, and ctpop. Teach
SelectionDAG's ComputeMaskedBits what InstCombine's knows
about SRem. And teach them both some things about high bits
in Mul, UDiv, URem, and Sub. This allows instcombine and
dagcombine to eliminate sign-extension operations in
several new cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50358 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 17:02:21 +00:00
Dan Gohman
8f0ad582e8
Teach DAGCombine to convert (sext x) to (zext x) when the
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sign-bit of x is known to be zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50357 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 16:58:24 +00:00
Mikhail Glushenkov
beb4d8293d
Add support for response files to the CommandLine library.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50355 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 16:44:25 +00:00
Anton Korobeynikov
2810d675f8
Fix FP return for Win64 ABI
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50342 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 07:40:07 +00:00
Chris Lattner
6833b0601b
Another collection of random cleanups. No functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50341 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 07:16:35 +00:00
Chris Lattner
b606dba13b
Remove the SmallVector ctor that converts from a SmallVectorImpl. This
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conversion open the door for many nasty implicit conversion issues, and
can be easily solved by initializing with (V.begin(), V.end()) when
needed.
This patch includes many small cleanups for sdisel also.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50340 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 06:44:42 +00:00
Chris Lattner
8eaff0449c
switch RegsForValue::Regs to be a SmallVector to avoid
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heap thrash on tiny (usually single-element) vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50335 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 06:02:19 +00:00
Chris Lattner
ffba5821ee
Fix PR2256, yet another miscompilation in simplifycfg of i
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multiple return values.
Bill, please pull this into Tak.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50332 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 00:19:07 +00:00
Chris Lattner
f899fce0c0
move static function out of anon namespace, no functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50330 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 23:48:12 +00:00
Chris Lattner
acf8b01fd6
Another step to getting multiple result inline asm to work.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50329 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 23:44:28 +00:00
Chris Lattner
96bb622646
Allow asms to return multiple results by value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50328 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 23:33:55 +00:00
Anton Korobeynikov
998a5bcc80
Properly lower vararg's FORMAL_ARGUMENTS node on win64
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50325 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 23:15:03 +00:00
Anton Korobeynikov
7255193b4f
Handle fp80 for win64
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50324 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 22:54:09 +00:00
Chris Lattner
24e1a9d311
typo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50316 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 01:49:46 +00:00
Chris Lattner
5a09690446
Implement a signficant optimization for inline asm:
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When choosing between constraints with multiple options,
like "ir", test to see if we can use the 'i' constraint and
go with that if possible. This produces more optimal ASM in
all cases (sparing a register and an instruction to load it),
and fixes inline asm like this:
void test () {
asm volatile (" %c0 %1 " : : "imr" (42), "imr"(14));
}
Previously we would dump "42" into a memory location (which
is ok for the 'm' constraint) which would cause a problem
because the 'c' modifier is not valid on memory operands.
Isn't it great how inline asm turns 'missed optimization'
into 'compile failed'??
Incidentally, this was the todo in
PowerPC/2007-04-24-InlineAsm-I-Modifier.ll
Please do NOT pull this into Tak.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50315 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 00:37:18 +00:00
Chris Lattner
507ffd2423
isa+cast -> dyn_cast
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50314 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 00:16:18 +00:00
Chris Lattner
4376fea663
Move a bunch of inline asm code out of line.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50313 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 00:09:47 +00:00
Chris Lattner
5e764233f3
A few inline asm cleanups:
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- Make targetlowering.h fit in 80 cols.
- Make LowerAsmOperandForConstraint const.
- Make lowerXConstraint -> LowerXConstraint
- Make LowerXConstraint return a const char* instead of taking a string byref.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50312 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-26 23:02:14 +00:00
Chris Lattner
2ba1c06d48
no need to implement this method and just have it call
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the default impl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50311 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-26 22:59:59 +00:00
Chris Lattner
998182b380
When SRoA'ing a global variable, make sure the new globals get the
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appropriate alignment. This fixes a miscompilation of 252.eon on
x86-64 (rdar://5891920).
Bill, please pull this into Tak.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50308 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-26 07:40:11 +00:00
Dale Johannesen
da30ccbe9a
change comments per review
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50300 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 21:16:07 +00:00
Evan Cheng
44c0fd17e1
Extract the lower 64-bit if a MMX value is passed in a XMM register.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50292 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 20:13:28 +00:00
Evan Cheng
082948df9b
Fix illegal MMX_MOVDQ2Qrr pattern. vector_extract result must be a scalar value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50291 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 20:12:46 +00:00
Evan Cheng
10e864276b
Special handling for MMX values being passed in either GPR64 or lower 64-bits of XMM registers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50289 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 19:11:04 +00:00
Dan Gohman
23ce502cb7
Remove the code from CodeGenPrepare that moved getresult instructions
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to the block that defines their operands. This doesn't work in the
case that the operand is an invoke, because invoke is a terminator
and must be the last instruction in a block.
Replace it with support in SelectionDAGISel for copying struct values
into sequences of virtual registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50279 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 18:27:55 +00:00
Evan Cheng
80f5404e18
Fix MMX_MOVQ2DQrr pattern. It's illegal to do a bitconvert from a smaller type to a larger one.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50278 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 18:19:54 +00:00
Nate Begeman
6867991d54
Pull the code to perform an INSERT_VECTOR_ELT in memory out into its own
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function, and then use it to fix a bug in SplitVectorOp that expected inserts
to always have constant insertion indices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50273 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 18:07:40 +00:00
Nate Begeman
4182db4327
Feedback from chris
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50271 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 17:45:52 +00:00
Chris Lattner
7c400dcb03
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50267 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 17:25:00 +00:00
Evan Cheng
682f81032f
80 col violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50266 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 17:21:40 +00:00
Nick Lewycky
280a6e607d
Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989
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r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50265 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 16:53:59 +00:00
Evan Cheng
419ace9bda
Not checking for intrinsics which do not have a chain operand.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50260 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 08:55:28 +00:00
Evan Cheng
cdda25d22b
- Switch from std::set to SmallPtrSet.
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- Add comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50259 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 08:22:20 +00:00
Evan Cheng
ee472b1081
MMX argument passing fixes:
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On Darwin / Linux x86-32, v8i8, v4i16, v2i32 values are passed in MM[0-2].
On Darwin / Linux x86-32, v1i64 values are passed in memory.
On Darwin x86-64, v8i8, v4i16, v2i32 values are passed in XMM[0-7].
On Darwin x86-64, v1i64 values are passed in 64-bit GPRs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50257 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 07:56:45 +00:00
Nate Begeman
4be30ac0e2
Teach the PruningFunctionCloner how to look through loads with
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ConstantExpression GEPs pointing into constant globals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50256 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 06:37:06 +00:00
Chris Lattner
25453ea49e
Loosen up an assertion to allow intrinsics. I really have no
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idea what this code (findNonImmUse) does, so I'm only guessing
that this is the right thing. It would be really really nice
if this had comments and perhaps switched to SmallPtrSet
(hint hint) :)
This fixes rdar://5886601, a crash on gcc.target/i386/sse4_1-pblendw.c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50252 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 05:13:01 +00:00
Chris Lattner
eede65ce6c
Don't infininitely thread branches when a threaded edge
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goes back to the block, e.g.:
Threading edge through bool from 'bb37.us.thread3829' to 'bb37.us' with cost: 1, across block:
bb37.us: ; preds = %bb37.us.thread3829, %bb37.us, %bb33
%D1361.1.us = phi i32 [ %tmp36, %bb33 ], [ %D1361.1.us, %bb37.us ], [ 0, %bb37.us.thread3829 ] ; <i32> [#uses=2]
%tmp39.us = icmp eq i32 %D1361.1.us, 0 ; <i1> [#uses=1]
br i1 %tmp39.us, label %bb37.us, label %bb42.us
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50251 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 04:12:29 +00:00
Gordon Henriksen
2566388bc4
PR2202: LLVMCreateInterpreter creates a JIT
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Applying fix by Frits van Bommel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50249 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 02:52:30 +00:00
Evan Cheng
2749c72f30
Fix bug in x86 memcpy / memset lowering. If there are trailing bytes not handled by rep instructions, a new memcpy / memset is introduced for them. However, since source / destination addresses are already adjusted, their offsets should be zero.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50239 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 00:26:43 +00:00
Evan Cheng
79328661fa
Adjust inline cost computation to be less aggressive.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50222 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 18:42:47 +00:00
Evan Cheng
a971dbdde2
- Check if a register is livein before removing it. It may have already been removed.
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- Do not iterate over SmallPtrSet, the order of iteration is not deterministic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50209 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 09:06:33 +00:00
Chris Lattner
eb5f4092d9
code restructuring, not functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50203 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 00:21:50 +00:00
Chris Lattner
7cb22ecf22
Don't replace multiple result of calls with undef,
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sccp tracks getresult values, not call values in this
case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50202 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 00:19:54 +00:00
Chris Lattner
f4023a1ef6
code cleanup, no functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50201 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 00:16:28 +00:00
Chris Lattner
c9e495c534
Split some code out of the main SimplifyCFG loop into its own function.
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Fix said code to handle merging return instructions together correctly
when handling multiple return values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50199 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 00:01:19 +00:00
Dan Gohman
3c02aca238
Make these variables static.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50196 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 23:15:23 +00:00
Anton Korobeynikov
0d9e02cfd6
Drop dead includes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50192 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 22:44:03 +00:00
Anton Korobeynikov
8d3e74ed49
Adjust option names for C++ backend
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50190 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 22:37:03 +00:00
Anton Korobeynikov
5027652b8a
First step of implementing PR1538: move llvm2cpp logic to new 'target'
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50189 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 22:29:24 +00:00
Dan Gohman
7661279ae0
Initial CBE support for multiple return values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50187 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 21:49:29 +00:00
Chris Lattner
80b8f5dd6b
tighten up verifier checks which missed cases where
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return instrs operands didn't match up with function results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50182 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 20:33:41 +00:00
Dan Gohman
67780f108c
Use isa instead of dyn_cast.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50181 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 20:25:16 +00:00
Dan Gohman
3dc34f682d
Add support to codegen for getresult instructions with undef operands.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50180 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 20:21:29 +00:00
Devang Patel
6829157f49
Check type instead of no. of operands.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50179 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 20:18:29 +00:00
Dan Gohman
9ac0ac5675
Allow llvm-as to parse a getresult with an undef operand.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50175 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 20:11:27 +00:00
Dale Johannesen
1f530a59f7
Rewrite previous patch to suit Chris's preference.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50174 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:34:37 +00:00
Anton Korobeynikov
b013f5094c
Unbreak JIT
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50173 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:26:03 +00:00
Anton Korobeynikov
941ff5818b
Fix typo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50169 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:24:25 +00:00
Anton Korobeynikov
dc28bd43d3
Only allow increase of max alignment value
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50168 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:23:50 +00:00
Anton Korobeynikov
d52bdaff0c
Be over-conservative: scan for all used virtual registers and calculate maximal stack alignment in assumption, that there will be spill of vector register.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50167 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:23:30 +00:00
Anton Korobeynikov
856914fe00
Add X86 Maximal Stack Alignment Calculator Pass before RA
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50166 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:23:05 +00:00
Anton Korobeynikov
769b481e9f
Add facility for pre-RA passes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50165 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:22:28 +00:00
Anton Korobeynikov
aadc780a56
Use precomputed value, if any
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50164 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:21:50 +00:00
Anton Korobeynikov
2c430cbf03
Do proper book-keeping of offsets and prologue/epilogue code for stack realignment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50163 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:21:27 +00:00
Anton Korobeynikov
8e91ec5e29
If stack realignment is used - incoming args will use EBP as base register and locals - ESP
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50162 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:21:02 +00:00
Anton Korobeynikov
b51dce3013
Eastimate required stack alignment early, so we can decide, whether we will need frame pointer or not
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50161 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:20:17 +00:00
Anton Korobeynikov
874384e20f
Cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50160 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:19:47 +00:00
Anton Korobeynikov
d1c133a051
Cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50159 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:19:23 +00:00
Anton Korobeynikov
82751e3eda
Simplify
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50158 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:18:36 +00:00
Anton Korobeynikov
45709ae09b
Make stack alignment options global for all targets
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50157 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:18:10 +00:00
Anton Korobeynikov
cfcd20e7be
Provide option for enabling-disabling stack realignment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50156 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:17:11 +00:00
Anton Korobeynikov
35410a493b
Disable stack realignment for functions with dynamic-sized alloca's
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50155 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:16:43 +00:00
Anton Korobeynikov
890fe888be
Provide ABI-correct stack alignment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50154 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:16:16 +00:00
Anton Korobeynikov
9bbbea568c
Provide convenient helpers for some operations
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50153 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:15:48 +00:00
Anton Korobeynikov
e201190eb7
Whitespace cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50152 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:15:11 +00:00
Chris Lattner
4af6ad3789
simplify code for propagation of constant arguments into
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callees.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50142 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 06:16:27 +00:00
Chris Lattner
e9625c6c88
Fix a number of bugs in ipconstantprop, simplify the code, fit in 80 cols,
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fix read after free bug (PR2238).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50141 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 05:59:23 +00:00
Chris Lattner
c6ee00b8ee
Rewrite multiple return value handling in SCCP. Before, the -sccp pass
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would turn every getresult instruction into undef. This helps with
rdar://5778210
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50140 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 05:38:20 +00:00
Chris Lattner
a925a14698
regenerate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50139 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 05:37:08 +00:00
Chris Lattner
f7dedf2d85
Validate that the result of a function type is valid using shared
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logic with vmcore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50138 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 05:36:58 +00:00
Chris Lattner
d52b62ae05
Enforce that multiple return values have to have at least one result.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50137 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 05:36:34 +00:00
Chris Lattner
42369b7e4b
Verify that the operand of a getresult instruction is a
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call/invoke or undef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50129 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 04:06:15 +00:00
Dale Johannesen
63e7eb4e12
Do not change the type of a ByVal argument to a
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type of a different size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50121 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 01:03:05 +00:00
Evan Cheng
f30752cbcc
Don't do: "(X & 4) >> 1 == 2 --> (X & 4) == 4" if there are more than one uses of the shift result.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50118 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 00:38:06 +00:00
Chris Lattner
a5ddb59a13
Start doing the significantly useful part of jump threading: handle cases
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where a comparison has a phi input and that phi is a constant. For example,
stuff like:
Threading edge through bool from 'bb2149' to 'bb2231' with cost: 1, across block:
bb2237: ; preds = %bb2231, %bb2149
%tmp2328.rle = phi i32 [ %tmp2232, %bb2231 ], [ %tmp2232439, %bb2149 ] ; <i32> [#uses=2]
%done.0 = phi i32 [ %done.2, %bb2231 ], [ 0, %bb2149 ] ; <i32> [#uses=1]
%tmp2239 = icmp eq i32 %done.0, 0 ; <i1> [#uses=1]
br i1 %tmp2239, label %bb2231, label %bb2327
or
bb38.i298: ; preds = %bb33.i295, %bb1693
%tmp39.i296.rle = phi %struct.ibox* [ null, %bb1693 ], [ %tmp39.i296.rle1109, %bb33.i295 ] ; <%struct.ibox*> [#uses=2]
%minspan.1.i291.reg2mem.1 = phi i32 [ 32000, %bb1693 ], [ %minspan.0.i288, %bb33.i295 ] ; <i32> [#uses=1]
%tmp40.i297 = icmp eq %struct.ibox* %tmp39.i296.rle, null ; <i1> [#uses=1]
br i1 %tmp40.i297, label %implfeeds.exit311, label %bb43.i301
This triggers thousands of times in spec.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50110 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 21:40:39 +00:00
Chris Lattner
ae65b3c791
Dig through multiple levels of AND to thread jumps if needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50106 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 20:46:09 +00:00
Chris Lattner
6bf77500c6
Teach jump threading to thread through blocks like:
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br (and X, phi(Y, Z, false)), label L1, label L2
This triggers once on 252.eon and 6 times on 176.gcc. Blocks
in question often look like this:
bb262: ; preds = %bb261, %bb248
%iftmp.251.0 = phi i1 [ true, %bb261 ], [ false, %bb248 ] ; <i1> [#uses=4]
%tmp270 = icmp eq %struct.rtx_def* %tmp.0.i, null ; <i1> [#uses=1]
%bothcond = or i1 %iftmp.251.0, %tmp270 ; <i1> [#uses=1]
br i1 %bothcond, label %bb288, label %bb273
In this case, it is clear that it doesn't matter if tmp.0.i is null when coming from bb261. When coming from bb248, it is all that matters.
Another random example:
check_asm_operands.exit: ; preds = %check_asm_operands.exit.thr_comm, %bb30.i, %bb12.i, %bb6.i413
%tmp.0.i420 = phi i1 [ true, %bb6.i413 ], [ true, %bb12.i ], [ true, %bb30.i ], [ false, %check_asm_operands.exit.thr_comm ; <i1> [#uses=1]
call void @llvm.stackrestore( i8* %savedstack ) nounwind
%tmp4389 = icmp eq i32 %added_sets_1.0, 0 ; <i1> [#uses=1]
%tmp4394 = icmp eq i32 %added_sets_2.0, 0 ; <i1> [#uses=1]
%bothcond80 = and i1 %tmp4389, %tmp4394 ; <i1> [#uses=1]
%bothcond81 = and i1 %bothcond80, %tmp.0.i420 ; <i1> [#uses=1]
br i1 %bothcond81, label %bb4398, label %bb4397
Here is the case from 252.eon:
bb290.i.i: ; preds = %bb23.i57.i.i, %bb8.i39.i.i, %bb100.i.i, %bb100.i.i, %bb85.i.i110
%myEOF.1.i.i = phi i1 [ true, %bb100.i.i ], [ true, %bb100.i.i ], [ true, %bb85.i.i110 ], [ true, %bb8.i39.i.i ], [ false, %bb23.i57.i.i ] ; <i1> [#uses=2]
%i.4.i.i = phi i32 [ %i.1.i.i, %bb85.i.i110 ], [ %i.0.i.i, %bb100.i.i ], [ %i.0.i.i, %bb100.i.i ], [ %i.3.i.i, %bb8.i39.i.i ], [ %i.3.i.i, %bb23.i57.i.i ] ; <i32> [#uses=3]
%tmp292.i.i = load i8* %tmp16.i.i100, align 1 ; <i8> [#uses=1]
%tmp293.not.i.i = icmp ne i8 %tmp292.i.i, 0 ; <i1> [#uses=1]
%bothcond.i.i = and i1 %tmp293.not.i.i, %myEOF.1.i.i ; <i1> [#uses=1]
br i1 %bothcond.i.i, label %bb202.i.i, label %bb301.i.i
Factoring out 3 common predecessors.
On the path from any blocks other than bb23.i57.i.i, the load and compare
are dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50096 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 07:05:46 +00:00
Chris Lattner
d38c14e6ed
refactor some code, no functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50094 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 06:36:15 +00:00
Chris Lattner
9d4b94d3e1
remove dead code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50080 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 03:21:48 +00:00
Chris Lattner
10c0d9179e
optimize "p != gep p, ..." better. This allows us to compile
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getelementptr-seteq.ll into:
define i1 @test(i64 %X, %S* %P) {
%C = icmp eq i64 %X, -1 ; <i1> [#uses=1]
ret i1 %C
}
instead of:
define i1 @test(i64 %X, %S* %P) {
%A.idx.mask = and i64 %X, 4611686018427387903 ; <i64> [#uses=1]
%C = icmp eq i64 %A.idx.mask, 4611686018427387903 ; <i1> [#uses=1]
ret i1 %C
}
And fixes the second half of PR2235. This speeds up the insertion sort
case by 45%, from 1.12s to 0.77s. In practice, this will significantly
speed up for loops structured like:
for (double *P = Base + N; P != Base; --P)
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Which happens frequently for C++ iterators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50079 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 02:53:33 +00:00
Chris Lattner
eb411291fa
more fallout from Nicholas' asmprinter patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50078 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 02:45:44 +00:00
Dan Gohman
61a9213440
Implement an x86-64 ABI detail of passing structs by hidden first
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argument. The x86-64 ABI requires the incoming value of %rdi to
be copied to %rax on exit from a function that is returning a
large C struct.
Also, add a README-X86-64 entry detailing the missed optimization
opportunity and proposing an alternative approach.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50075 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 23:59:07 +00:00
Dan Gohman
639cdc210b
Fix an out-of-bounds access in -view-sunit-dags in the case of an
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empty ScheduleDAG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50054 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 20:07:30 +00:00
Dan Gohman
0416b0a26d
Fix the encoding of the MMX movd that moves from MMX to 64-bit GPR.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50053 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 19:52:29 +00:00
Dan Gohman
92c7b65c91
Fix the way AliasSet::print prints "may alias".
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50051 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 19:48:48 +00:00
Chris Lattner
037c781de7
fix grammar-o, thanks to Duncan for noticing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50047 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 18:25:01 +00:00
Owen Anderson
4bda6e47e9
Remove unneeded #include's.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50035 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 07:47:38 +00:00
Owen Anderson
a8bd65835b
Refactor memcpyopt based on Chris' suggestions. Consolidate several functions
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and simplify code that was fallout from the separation of memcpyopt and gvn.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50034 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 07:45:10 +00:00
Duncan Sands
e47d98200e
Fix a "large integer implicitly truncated to unsigned type"
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warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50033 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 07:35:28 +00:00
Chris Lattner
ea705199af
don't print dominators every time it is computed with -debug.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50032 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 06:19:02 +00:00
Chris Lattner
a1b5858fda
another bug introduced in r47802 by nicholas, for no apparent reason.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50031 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 06:12:55 +00:00
Chris Lattner
7d717a0b70
Add an ugly note.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50029 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 04:46:30 +00:00
Chris Lattner
96c5b2f8c7
fix a bug introduced by Nicholas' "unwinds to" stuff: we
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lost newlines between blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50024 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 04:20:33 +00:00
Chris Lattner
281def9456
don't assume that the argument passed to fprintf("%s" is a string. This
...
fixes a crash in opt on 433.milc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50023 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 03:18:33 +00:00
Chris Lattner
2cc675180b
Use the new SplitBlockPredecessors to implement a todo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50022 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 02:57:57 +00:00
Chris Lattner
54b9c3ba2a
Move SplitBlockPredecessors out of loopsimplify into BasicBlockUtils.h
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as a global helper function. At the same type, switch it from taking
a vector of predecessors to an arbitrary sequential input. This allows
us to switch LoopSimplify to use a SmallVector for various temporary
vectors that it passed into SplitBlockPredecessors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50020 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 01:28:02 +00:00
Chris Lattner
1b58678d54
Move domtree/frontier updating earlier, allowing us to use it to update phi
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nodes, removing a hack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50019 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 01:05:08 +00:00
Chris Lattner
b85979434d
Factor dominator tree and frontier updating into SplitBlockPredecessors
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instead of doing it after every call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50018 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 00:54:38 +00:00
Chris Lattner
48a80b07bd
fit some more code in 80 cols.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50016 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 00:25:49 +00:00
Chris Lattner
34093a634a
simplify code, fit in 80 cols.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50015 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 00:23:14 +00:00
Chris Lattner
862f27ebab
fit in 80 cols
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50014 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 00:19:16 +00:00
Nicolas Geoffray
580631a73a
Be pessimistic in computing the buffer size when aligning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50008 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 23:39:44 +00:00
Nicolas Geoffray
546e36a2c1
Don't forget to update the current operand when getting the size of an instruction.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50007 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 23:36:47 +00:00
Chris Lattner
bd3401fa98
finish the first cut of a jump threading pass implementation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50006 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 22:39:42 +00:00
Chris Lattner
0cfe85be0b
replace a slow and verbose version of Instruction::isUsedOutsideOfBlock with
...
a call to Instruction::isUsedOutsideOfBlock.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50005 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 22:18:22 +00:00
Chris Lattner
7ae40e7d8a
add a handy helper method to instruction, useful for determining
...
whether it is used outside of some block. This can be used to see
if there are any non-local references, for example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50004 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 22:11:30 +00:00
Chris Lattner
f9065a904f
we can only thread blocks when there is a pred we can determine the succ of.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50003 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 21:18:09 +00:00
Chris Lattner
177480b7ed
improve comments, infrastructure, and add some validity checks for threading.
...
Add a cost function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50002 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 21:13:06 +00:00
Chris Lattner
8383a7b7a6
Add a new Jump Threading pass, which will handle cases
...
such as those in PR2235. Right now the pass is not very
effective. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50000 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 20:35:01 +00:00
Chris Lattner
3e5d1d8d08
hopefully resolve PR2240
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49999 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 19:59:12 +00:00
Chris Lattner
0e4b6c7551
rearrange some code, simplify handling of shifts.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49995 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 18:24:14 +00:00
Dale Johannesen
9dd2ce46c5
Check we aren't trying to convert PPC long double.
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This fixes the testsuite failure on ppcf128-4.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49994 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 18:23:46 +00:00
Nicolas Geoffray
5913e6c5db
Cosmetic changes, as suggested by Evan. No functionality changes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49993 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 17:44:19 +00:00
Dale Johannesen
a0c8fc6f28
(re)fix handling of UGT. Pointed out by Nick Lewycky.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49991 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 16:58:57 +00:00
Torok Edwin
3eaee31393
g++-4.3 build-fix: CHAR_BIT requires <climits>.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49989 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 08:33:11 +00:00
Nicolas Geoffray
fd7d99120b
Do not hold the JIT lock when materializing a function and verify if the
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function has already been codegen'd. This is required by the Java class loading
mechanism which executes Java code when materializing a function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49988 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 08:33:02 +00:00
Chris Lattner
bd381a777b
A better fix for my previous patch, MOVZQI2PQIrr just requires SSE2.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49986 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 05:52:46 +00:00
Dale Johannesen
79f82f9fd5
Check that APFloat::convert is not trying to target
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ppc long double, which doesn't work.
This may break some stuff temporarily, but I want to
avoid the propagation of code that assumes this works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49983 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 01:34:03 +00:00
Chris Lattner
d8eb63fc72
regenerate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49978 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 00:41:19 +00:00
Chris Lattner
02a260aa11
Switch to using Simplified ConstantFP::get API.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49977 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 00:41:09 +00:00
Chris Lattner
eb9c8e1e3f
Use simplified ConstantFP::get method, fix a bug handling frem x, 0 with long doubles.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49976 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 00:26:06 +00:00
Chris Lattner
d881ad2c57
Implement PR2206.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49967 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 22:17:26 +00:00
Chris Lattner
1c14c29746
refactor handling of symbolic constant folding, picking up
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a few new cases( see Integer/a1.ll), but not anything that
would happen in practice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49965 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 21:58:19 +00:00
Chris Lattner
61783d7322
indentation fix.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49964 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 21:13:00 +00:00
Chris Lattner
bcd203cf86
Allow argpromote to promote struct arguments with a specified number
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of elements. Patch by Matthijs Kooijman!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49962 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 19:50:01 +00:00
Evan Cheng
8608f2eff2
64-bit atomic operations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49949 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 02:30:38 +00:00
Evan Cheng
94d7b02c5a
Also LXCHG64 -> XCHG64rm.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49948 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 02:05:42 +00:00
Evan Cheng
54fc97dcdc
PPC32 atomic operations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49947 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 01:30:48 +00:00
Evan Cheng
bb6939dcff
xchg which references a memory operand does not need to lock prefix. Atomicity is guaranteed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49946 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 01:20:30 +00:00
Dan Gohman
f4423b1e45
Teach llvm-as to accept function types with multiple return types.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49945 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 00:24:39 +00:00
Dale Johannesen
cf363181c1
Fix a scalar evolution bug. Reversing everything
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does not work because of 0; 2>0 but -2U is also >0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49928 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18 21:38:31 +00:00
Nicolas Geoffray
dc17ab2bf0
Enable jitting with a known memory size.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49924 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18 20:59:31 +00:00
Duncan Sands
37bcda3de9
Implement a bit more softfloat support in
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LegalizeTypes. Correct the load logic so
that it actually works, and also teach it
to handle floating point extending loads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49923 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18 20:56:03 +00:00
Dan Gohman
28269139ee
Fix the handling of va_copy on x86-64. As of llvm-gcc r49920
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llvm-gcc is now lowering va_copy on x86-64, so this completes
the fix for PR2230.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49922 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18 20:55:41 +00:00
Evan Cheng
7e03280b53
- Fix atomic operation JIT encoding.
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- Remove unused instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49921 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18 20:55:36 +00:00
Duncan Sands
4cc0456456
Add some more FIXME's for indexed loads and stores.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49916 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18 20:27:12 +00:00
Duncan Sands
41edfb8ae1
Provide an explicit list of operands to MakeLibcall,
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rather than having it suck them out of a node. Add
a bunch of new libcalls, and remove dead softfloat
code (dead, because FloatToInt is used not Expand
in this case). Note that indexed stores probably
aren't handled properly, likewise for loads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49915 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18 20:25:14 +00:00
Evan Cheng
a8f720d695
Correct comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49913 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18 19:25:26 +00:00
Evan Cheng
883d260045
Not safe to "kill" a register if its live range extends pass the end of block branch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49911 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18 19:22:23 +00:00
Evan Cheng
3f73beaeb2
Also support Intel asm syntax.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49878 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 23:35:10 +00:00
Dan Gohman
35b31bea0d
Remove the implicit conversion from SDOperandPtr to SDOperand*; this
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may fix a build error on Visual Studio.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49876 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 23:02:12 +00:00
Evan Cheng
9d1a81a23c
Fix assembly code for atomic operations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49869 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 21:26:35 +00:00
Evan Cheng
639f493ebf
Be more careful with insert_subreg and extract_subreg where either source or destination operand has already been coalesced with another register that's defined by a insert_subreg or extract_subreg.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49843 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 07:58:04 +00:00
Owen Anderson
241f65321e
Make GVN able to remove unnecessary calls to read-only functions again.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49842 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 05:36:50 +00:00
Bill Wendling
f231778269
Use correct name for method in comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49841 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 05:20:39 +00:00
Dan Gohman
499c1bd358
Correct the SrcValue information in the Expand code for va_copy.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49839 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 02:09:26 +00:00
Scott Michel
5788bca1c2
Remove unused variable
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49838 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 01:30:44 +00:00
Evan Cheng
621d157676
Fix a sub-register indice propagation bug.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49832 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 00:06:42 +00:00
Scott Michel
4bf393a13e
Workaround for PR2207, in which pred_iterator assert gets triggered due to a
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wee problem in Xcode 2.[45]/gcc 4.0.1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49831 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 23:46:39 +00:00
Evan Cheng
03eb38848c
Don't forget about sub-register indices when rematting instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49830 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 23:44:44 +00:00
Dale Johannesen
5e8fb81353
Unbreak build on x86-64.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49822 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 22:24:33 +00:00
Nicolas Geoffray
51cc3c13ea
Correlate stubs with functions in JIT: when emitting a stub, the JIT tells the memory manager which function
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the stub will resolve.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49814 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 20:46:05 +00:00
Evan Cheng
9c1e06e187
After reading memory that's already freed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49810 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 20:24:25 +00:00
Nicolas Geoffray
52e724ad7e
Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49809 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 20:10:13 +00:00
Evan Cheng
dc00858e11
Initialize X863DNowLevel.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49808 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 19:03:02 +00:00
Evan Cheng
ff7a3e557e
Fix PR2226. Avoid using uninitialized variables.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49807 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 18:48:43 +00:00
Evan Cheng
76249966ee
Empty basic block should have an empty range.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49800 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 18:01:08 +00:00
Dale Johannesen
48325f4b08
Don't read off end of the input array.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49799 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 17:31:41 +00:00
Roman Levenstein
9cac5259fe
Ongoing work on improving the instruction selection infrastructure:
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Rename SDOperandImpl back to SDOperand.
Introduce the SDUse class that represents a use of the SDNode referred by
an SDOperand. Now it is more similar to Use/Value classes.
Patch is approved by Dan Gohman.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49795 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 16:15:27 +00:00
Evan Cheng
0d4bdde327
Rewrite LiveVariable liveness computation. The new implementation is much simplified. It eliminated the nasty recursive routines and removed the partial def / use bookkeeping. There is also potential for performance improvement by replacing the conservative handling of partial physical register definitions. The code is currently disabled until live interval analysis is taught of the name scheme.
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This patch also fixed a couple of nasty corner cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49784 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 09:46:40 +00:00
Evan Cheng
9b6d7b9fb3
Code clean up.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49783 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 09:41:59 +00:00