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Author SHA1 Message Date
Chris Lattner
886ab6c49c make some fairly meaty internal changes to how SimplifyDemandedBits works. 
Now, if it detects that "V" is the same as some other value, 
SimplifyDemandedBits returns the new value instead of RAUW'ing it immediately.
This has two benefits:
1) simpler code in the recursive SimplifyDemandedBits routine.
2) it allows future fun stuff in instcombine where an operation has multiple
   uses and can be simplified in one context, but not all.

#2 isn't implemented yet, this patch should have no functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63479 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 08:15:18 +00:00
Chris Lattner
08d2cc70fe minor cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63477 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 07:26:06 +00:00
Chris Lattner
1e19d603e0 make sure to set Changed=true when instcombine hacks on the code, 
not doing so prevents it from properly iterating and prevents it
from deleting the entire body of dce-iterate.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63476 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 07:04:22 +00:00
Mon P Wang
a7b6cff99f If unsafe FP optimization is not set, don't allow -(A-B) => B-A because 
when A==B, -0.0 != +0.0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63474 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 06:07:45 +00:00
Bill Wendling
9729c5ad34 Don't use DebugLoc::getUnknownLoc(). Default to something hopefully sensible. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63473 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 03:12:48 +00:00
Chris Lattner
2e0d5f8432 Simplify and generalize the SROA "convert to scalar" transformation to 
be able to handle *ANY* alloca that is poked by loads and stores of 
bitcasts and GEPs with constant offsets.  Before the code had a number
of annoying limitations and caused it to miss cases such as storing into
holes in structs and complex casts (as in bitfield-sroa) where we had
unions of bitfields etc.  This also handles a number of important cases
that are exposed due to the ABI lowering stuff we do to pass stuff by
value.

One case that is pretty great is that we compile 
2006-11-07-InvalidArrayPromote.ll into:

define i32 @func(<4 x float> %v0, <4 x float> %v1) nounwind {
	%tmp10 = call <4 x i32> @llvm.x86.sse2.cvttps2dq(<4 x float> %v1)
	%tmp105 = bitcast <4 x i32> %tmp10 to i128
	%tmp1056 = zext i128 %tmp105 to i256	
	%tmp.upgrd.43 = lshr i256 %tmp1056, 96
	%tmp.upgrd.44 = trunc i256 %tmp.upgrd.43 to i32	
	ret i32 %tmp.upgrd.44
}

which turns into:

_func:
	subl	$28, %esp
	cvttps2dq	%xmm1, %xmm0
	movaps	%xmm0, (%esp)
	movl	12(%esp), %eax
	addl	$28, %esp
	ret

Which is pretty good code all things considering :).

One effect of this is that SROA will start generating arbitrary bitwidth 
integers that are a multiple of 8 bits.  In the case above, we got a 
256 bit integer, but the codegen guys assure me that it can handle the 
simple and/or/shift/zext stuff that we're doing on these operations.

This addresses rdar://6532315



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63469 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 02:28:54 +00:00
Dale Johannesen
66978ee977 Move CurDebugLoc into SelectionDAGLowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63468 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 02:22:37 +00:00
Gabor Greif
9411cd2570 back out my previous change, it exposes a latent bug. investigating 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63463 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 01:31:59 +00:00
Gabor Greif
3edbcada57 use precise accessors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63459 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 00:58:14 +00:00
Dale Johannesen
91b49b910c Propagate debug info in LegalizeFloatTypes. 
Complete (modulo bugs).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63458 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 00:43:08 +00:00
Dale Johannesen
786fd4dded Propagate debug info. This file complete 
(modulo bugs)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63457 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 00:20:43 +00:00
Dale Johannesen
c8fc99d66a Propagate debug info through MakeLibCall and a 
couple of things that use it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63456 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-31 00:11:23 +00:00
Bill Wendling
836ca7dc6e More DebugLoc propagation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63454 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 23:59:18 +00:00
Bill Wendling
c144a57e14 More DebugLoc propagation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63452 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 23:36:47 +00:00
Bill Wendling
c0debad716 More DebugLoc propagation in LOAD etc. methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63451 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 23:27:35 +00:00
Bill Wendling
0225a1dcb1 More DebugLoc propagation in floating-point methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63446 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 23:15:49 +00:00
Dale Johannesen
7d2ad624fa Make LowerCallTo and LowerArguments take a DebugLoc 
argument.  Adjust all callers and overloaded versions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63444 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 23:10:59 +00:00
Bill Wendling
d34470c4f7 Standardize comments about folding xforms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63443 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 23:10:18 +00:00
Bill Wendling
7581bfa275 Get rid of the non-DebugLoc-ified getNOT() method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63442 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 23:03:19 +00:00
Bill Wendling
a03e74bf67 Propagate debug loc info for some FP arithmetic methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63441 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 22:57:07 +00:00
Bill Wendling
b0162f58c4 Propagate debug loc info for some FP arithmetic methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63440 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 22:53:48 +00:00
Bill Wendling
67a6768375 Propagate debug loc info for BIT_CONVERT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63439 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 22:44:24 +00:00
Bill Wendling
8509c90a20 Propagate debug loc info for more *_EXTEND methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63437 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 22:33:24 +00:00
Bill Wendling
683c95764a Propagate debug loc info for ANY_EXTEND. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63436 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 22:27:33 +00:00
Bill Wendling
6ce610f04b Propagate debug loc info for some of the *_EXTEND functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63434 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 22:23:15 +00:00
Bill Wendling
41b9d278ad DebugLoc form of getNOT(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63433 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 22:11:22 +00:00
Bill Wendling
34584e6aed - Propagate debug loc info for SELECT. 
- Added xform for (select X, 1, Y) and (select X, Y, 0), which was commented on,
  but missing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63428 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 22:02:18 +00:00
Bill Wendling
8810337e36 Propagate debug loc info for Shifts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63424 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 21:37:17 +00:00
Bill Wendling
317bd709bd Propagate debug loc info for XOR and MatchRotate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63420 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 21:14:50 +00:00
Bill Wendling
0902564479 Propagate debug loc info for OR. Also clean up some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63419 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 20:59:34 +00:00
Bill Wendling
6af7618b23 Perform obvious constant arithmetic folding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63417 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 20:50:00 +00:00
Bill Wendling
2627a881e1 Propagate debug loc info for AND. Also clean up some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63416 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 20:43:18 +00:00
Bill Wendling
b74c8675b1 Propagate debug loc info in SimplifyBinOpWithSameOpcodeHands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63411 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 19:25:47 +00:00
Gabor Greif
ae6ab1e950 use precise getters 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63403 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 18:27:21 +00:00
Gabor Greif
c1bb13f1b8 use precise getters 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63402 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 18:21:13 +00:00
Devang Patel
dd9db66882 Each input file is encoded as a separate compile unit in LLVM debugging 
information output. However, many target specific tool chains prefer to encode
only one compile unit in an object file. In this situation, the LLVM code
generator will include  debugging information entities in the compile unit 
that is marked as main compile unit. The code generator accepts maximum one main
compile unit per module. If a module does not contain any main compile unit 
then the code generator will emit multiple compile units in the output object 
file.

[Part 1]

Update DebugInfo APIs to accept optional boolean value while creating DICompileUnit  to mark the unit as "main" unit. By defaults all units are considered  non-main.  Update SourceLevelDebugging.html to document "main" compile unit.

Update DebugInfo APIs to not accept and encode separate source file/directory entries while creating various llvm.dbg.* entities. There was a recent, yet to be documented, change to include this additional information so no documentation changes are required here.

Update DwarfDebug to handle "main" compile unit. If "main" compile unit is seen then all DIEs are inserted into "main" compile unit. All other compile units are used to find source location for llvm.dbg.* values. If there is not any "main" compile unit then create unique compile unit DIEs for each llvm.dbg.compile_unit.

[Part 2]

Create separate llvm.dbg.compile_unit for each input file. Mark compile unit create for main_input_filename as "main" compile unit. Use appropriate compile unit, based on source location information collected from the tree node, while creating llvm.dbg.* values using DebugInfo APIs.

---

This is Part 1.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63400 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 18:20:31 +00:00
Zhou Sheng
c0425b646f As Duncan suggested, add braces for the one-line "else branch". 
Thanks, Duncan.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63389 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 09:44:49 +00:00
Zhou Sheng
904ebf9bf4 This is to fix the bug in IntrinsicLowering.cpp, 
the LowerPartSet(). It didn't handle the situation correctly when
the low, high argument values are in reverse order (low > high)
with 'Val' type i32 (a corner case).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63388 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 09:02:50 +00:00
Sanjiv Gupta
5af3ee2818 Fixed the comment. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63387 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 09:01:44 +00:00
Mike Stump
d6f175b3ec Add opposite_of and inverse_opt to support -fno- style options. This 
is necessary for eventual gcc commmand line compatibility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63384 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 08:19:46 +00:00
Sanjiv Gupta
e0ffc92508 Use sublw for comparison with literals instead of subwf. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63382 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 07:55:25 +00:00
Mon P Wang
7ad9b51278 When PerformBuildVectorCombine, avoid creating a X86ISD::VZEXT_LOAD of 
an illegal type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63380 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 07:07:40 +00:00
Sanjiv Gupta
c8d7bc850d Enable emitting of constant values in non-default address space as well. The APIs emitting constants now take an additional parameter signifying the address space in which to emit. The APIs like getData8BitsDirective() etc are made virtual enabling targets to be able to define appropirate directivers for various sizes and address spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63377 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 04:25:10 +00:00
Bill Wendling
826d11463b Propagate debug loc info in SimplifyNodeWithTwoResults. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63376 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 03:08:40 +00:00
Bill Wendling
326411dc69 Propagate debug loc info for MULHS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63375 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 03:00:18 +00:00
Bill Wendling
6d3bf8c4c3 Propagate debug loc info for SREM and UREM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63374 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 02:57:00 +00:00
Bill Wendling
07d8514049 Propagate debug loc info for UDIV. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63373 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 02:55:25 +00:00
Bill Wendling
944d34bfe8 Propagate debug loc info for SDIV. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63372 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 02:52:17 +00:00
Bill Wendling
73e16b2869 Forgot to propagate debug loc info here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63371 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 02:49:26 +00:00
Dan Gohman
3311a1f8f0 Fix a post-RA scheduling dependency bug. 
If a MachineInstr doesn't have a memoperand but has an opcode that
is known to load or store, assume its memory reference may alias
*anything*, including stack slots which the compiler completely
controls.

To partially compensate for this, teach the ScheduleDAG building
code to do basic getUnderlyingValue analysis. This greatly
reduces the number of instructions that require restrictive
dependencies. This code will need to be revisited when we start
doing real alias analysis, but it should suffice for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63370 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 02:49:14 +00:00
Bill Wendling
9c8148ac93 Propagate debug loc info for MUL. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63369 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 02:45:56 +00:00
Bill Wendling
b0702e0b7e Propagate debug loc info in SUB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63368 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 02:42:10 +00:00
Bill Wendling
14036c00c0 Propagate debug loc info in ADDC and ADDE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63367 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 02:38:00 +00:00
Bill Wendling
f4eb2269eb Propagate debug loc info in DAG combine's "ADD". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63366 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 02:31:17 +00:00
Bill Wendling
d69c3141ed - Propagate debug loc info in combineSelectAndUse(). 
- Modify ReassociateOps so that the resulting SDValue is what the comment claims
  it is.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63365 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 02:23:43 +00:00
Dale Johannesen
fa42dea48b Propagate debug info when building SelectionDAG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63359 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 01:34:22 +00:00
Devang Patel
6360089d63 Remove dead code, again. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63358 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 01:27:49 +00:00
Devang Patel
425b64ecef Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63357 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 01:25:47 +00:00
Devang Patel
d234e59e57 Add DW_AT_declaration for class methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63356 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 01:21:46 +00:00
Bill Wendling
5c71acfb06 Propagate debug location info for the token factor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63355 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 01:13:16 +00:00
Devang Patel
bf3f5a08ee Add dump() routines to help debug debug info :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63353 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 01:03:10 +00:00
Bill Wendling
35247c3513 Add DebugLoc propagation to some of the methods in DAG combiner. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63350 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-30 00:45:56 +00:00
Owen Anderson
3ef4549d9d Correct the algorithms for choosing spill and restore points so that we don't try to insert loads/stores between call frame setup and the actual call. 
This fixes the last known failure for the pre-alloc-splitter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63339 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 22:13:06 +00:00
Dan Gohman
15b3830bcd Explicitly add PseudoSourceValue information when lowering 
BUILD_VECTOR and conversions to stack operations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63333 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 21:02:43 +00:00
Dan Gohman
1cc6b8ee78 Make a few things const, fix some comments, and simplify 
some assertions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63328 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 19:49:27 +00:00
Chris Lattner
f87d28745a Fix windows build, patch by Marius Wachtler! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63325 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 18:53:28 +00:00
Evan Cheng
d5a4802708 Local register allocator shouldn't assume only the entry and landing pad basic blocks have live-ins. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63323 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 18:37:30 +00:00
Dan Gohman
2c65c3dfe6 Fix two typos that Duncan spotted in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63312 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 16:18:12 +00:00
Dan Gohman
197e88f796 In the case of an extractelement on an insertelement value, 
the element indices may be equal if either one is not a
constant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63311 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 16:10:46 +00:00
Bill Wendling
56ab1a2815 Revert r63273. This was already implemented by Dale. There's no need for my 
change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63301 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 09:01:55 +00:00
Owen Anderson
c0f3a0353c Fix an issue where restores could be inserted after a terminator instruction, 
and an iterator invalidation issue.

FreeBench/pifft no longer miscompiles with these fixes!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63293 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 08:22:06 +00:00
Owen Anderson
4bfc209721 Comments are good. :-) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63276 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 05:41:02 +00:00
Owen Anderson
45e6855ea2 Add support for aggressive load-use-store folding. This takes care of the 
vast majority of code size regressions introduced by pre-alloc-splitting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63274 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 05:28:55 +00:00
Bill Wendling
6e1bb38fb8 - Add DebugLoc to getTargetNode(). 
- Modify TableGen to add the DebugLoc when calling getTargetNode.

(The light-weight wrappers are only temporary. The non-DebugLoc version will be
removed once the whole debug info stuff is finished with.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63273 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 05:27:31 +00:00
Chris Lattner
cee3e7cb68 Fix PR3424, a static constructor ordering issue. Patch by Robert Schuster! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63269 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 04:43:42 +00:00
Evan Cheng
5a3c6a87b0 Exit with nice warnings when register allocator run out of registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63267 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 02:20:59 +00:00
Dan Gohman
e5af2d3a22 Make x86's BT instruction matching more thorough, and add some 
dagcombines that help it match in several more cases. Add
several more cases to test/CodeGen/X86/bt.ll. This doesn't
yet include matching for BT with an immediate operand, it
just covers more register+register cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63266 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 01:59:02 +00:00
Evan Cheng
7ddee0ad24 A slight compile time optimization. If the caller knows there isn't a free register getReg() should not call getFreeReg(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63263 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 01:13:00 +00:00
Dale Johannesen
e8c17335c5 Add DebugLoc-sensitive versions of many node creation 
functions.  Currently omitted:  memcpy, memmove, memset.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63259 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 00:47:48 +00:00
Evan Cheng
42cc6e33ec Fix comment about removeRange. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63255 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-29 00:06:09 +00:00
Mon P Wang
e91a000889 Fixed lowering of v816 shuffles. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63252 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 23:11:14 +00:00
Bill Wendling
7ade28cd62 Add DebugLoc to the getNode() methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63245 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 22:17:52 +00:00
Dale Johannesen
3edb43e620 Add DebugLoc-aware constructors for SDNode derived 
classes (those that reasonably have a DebugLoc
associated with them).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63236 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 21:18:29 +00:00
Devang Patel
f923574856 Do not forget to derived type while constructing an array type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63233 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 21:08:20 +00:00
Chris Lattner
6e733d34ca Fix some issues with volatility, move "CanConvertToScalar" check 
after the others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63227 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 20:16:43 +00:00
Mon P Wang
f7eef6811c Fixed extract element when the result needs to be promoted and the input widened. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63217 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 18:53:39 +00:00
Dan Gohman
f560ffae1f Make isOperationLegal do what its name suggests, and introduce a 
new isOperationLegalOrCustom, which does what isOperationLegal
previously did.

Update a bunch of callers to use isOperationLegalOrCustom
instead of isOperationLegal. In some case it wasn't obvious
which behavior is desired; when in doubt I changed then to
isOperationLegalOrCustom as that preserves their previous
behavior.

This is for the second half of PR3376.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63212 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 17:46:25 +00:00
Duncan Sands
0b3aa26384 Formatting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63199 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 14:42:54 +00:00
Duncan Sands
1465d61bdd Rename getAnalysisToUpdate to getAnalysisIfAvailable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63198 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 13:14:17 +00:00
Duncan Sands
e02f724880 Fix PR3415 (infinite loop in EscapeAnalysis) by 
deleting the escape analysis pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63197 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 11:33:59 +00:00
Evan Cheng
1632782fe9 The memory alignment requirement on some of the mov{h|l}p{d|s} patterns are 16-byte. That is overly strict. These instructions read / write f64 memory locations without alignment requirement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63195 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 08:35:02 +00:00
Mon P Wang
3becd093cc Add shuffle splat pattern for x86 sse shifts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63193 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 08:12:05 +00:00
Mikhail Glushenkov
6c55b1ca7b Clarify comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63171 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 03:46:22 +00:00
Dan Gohman
f83c81acbe Use ValueType::bitsLT to simplify some code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63170 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 03:10:52 +00:00
Dan Gohman
77f7a5771e Use ZERO_EXTEND instead of ANY_EXTEND when promoting 
shift amounts, to avoid implicitly assuming that
target architectures will ignore the high bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63169 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 02:58:31 +00:00
Evan Cheng
d1e7d9a88b Suppress a compile time warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63161 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-28 00:53:34 +00:00
Devang Patel
7009d24e81 Add type DIE into appropriate context DIE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63154 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 23:22:55 +00:00
Dale Johannesen
06efc02854 Add a DebugLoc field and some simple accessors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63152 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 23:20:29 +00:00
Anton Korobeynikov
72bb40229e Treat [1 x i8] zeroinitializer as a C string, placing such stuff into 
mergeable string section. I don't see any bad impact of such decision
(rather then placing it into mergeable const section, as it was before),
but at least Darwin linker won't complain anymore.

The problem in LLVM is that we don't have special type for string constants
(like gcc does). Even more, we have two separate types: ConstatArray for non-null
strings and ConstantAggregateZero for null stuff.... It's a bit weird :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63142 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 22:29:24 +00:00
Evan Cheng
aaeea9e64f Refine DebugLoc per review comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63132 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 21:15:07 +00:00
Dan Gohman
ce9bc12c6f Add an assertion to the form of SelectionDAG::getConstant that takes 
a uint64_t to verify that the value is in range for the given type,
to help catch accidental overflow. Fix a few places that relied on
getConstant implicitly truncating the value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63128 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 20:39:34 +00:00
Dan Gohman
d3f184906d Reformat the allocation-order arrays to a more conventional style. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63121 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 19:25:38 +00:00
Dan Gohman
daac99cdfb Delete redundant return statements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63120 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 19:23:22 +00:00
Dan Gohman
9e79091f1a Respect the DisableRedZone flag on PowerPC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63119 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 19:19:28 +00:00
Dan Gohman
c03e9a1040 Simplify findNonImmUse; return the result using the return value 
instead of via a by-reference argument. No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63118 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 19:04:30 +00:00
Torok Edwin
2d0f1c57c3 APInt's countLeadingOnes() was broken for negative i128 values, 
causing assertion failures in getSExtValue().
Fix it by making highWordBits actually contain what its name says,
and add some more unit-tests for APInt.
This fixes PR3419.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63107 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 18:06:03 +00:00
Owen Anderson
26562de2ef Make the pre-split-limit option more useful by using a per-function counter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63091 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 05:01:15 +00:00
Evan Cheng
6a86bd71df Implement multiple with overflow by 2 with an add instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63090 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 03:30:42 +00:00
Dan Gohman
e8ecf4876a Eliminate unnecessary operands-list traversals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63088 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 02:37:43 +00:00
Dan Gohman
499cb3fcfb Enable the red zone on x86-64 by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63078 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 00:58:47 +00:00
Devang Patel
ad165bec1d Assorted debug info fixes. 
- DW_AT_bit_size is only suitable for bitfields.
- Encode source location info for derived types.
- Source location and type size info is not useful for subroutine_type (info is included in respective DISubprogram) and array_type.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63077 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 00:45:04 +00:00
Dan Gohman
336b636dd7 Fix the Red Zone calculation for functions with frame pointers. 
Don't use the Red Zone when dynamic stack realignment is needed.
This could be implemented, but most x86-64 ABIs don't require
dynamic stack realignment so it isn't urgent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63074 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-27 00:40:06 +00:00
Evan Cheng
b9f66cfadf No need to keep size of DebugLocations vector separately. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63070 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 23:47:30 +00:00
Scott Michel
9de57a9ed2 CellSPU: 
- Update DWARF debugging support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63059 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 22:33:37 +00:00
Scott Michel
210de72cd7 Make the Dwarf macro information section optional; CellSPU's assembler 
doesn't support it. The default is set to 'true', so this should not
impact any other target backends.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63058 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 22:32:51 +00:00
Dan Gohman
92f4f16a19 Implement Red Zone utilization on x86-64. This is currently 
disabled by default; I'll enable it when I hook it up with
the llvm-gcc flag which controls it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63056 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 22:22:31 +00:00
Owen Anderson
b4b8436381 Reapply r63025 and r63026, with fixes for the failing testcases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63049 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 21:57:31 +00:00
Duncan Sands
5bb11b89dd Fix PR3393, which amounts to a bug in the expensive 
checking logic.  Rather than make the checking more
complicated, I've tweaked some logic to make things
conform to how the checking thought things ought to
be, since this results in a simpler "mental model".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63048 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 21:54:18 +00:00
Ted Kremenek
9c27886dd5 Add method raw_fd_ostream::seek() for random access within a file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63044 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 21:42:04 +00:00
Bill Wendling
826f093517 Also revert r63206 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63041 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 21:30:17 +00:00
Bill Wendling
34b946b8fb Temporarily revert r63025 until the testsuite failures can be fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63040 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 21:27:03 +00:00
Anton Korobeynikov
36c826ad95 During bittest switch lowering emit shift in the test block, which should (theoretically) 
allow us to generate more efficient code. We don't do this now though :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63027 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 19:26:01 +00:00
Owen Anderson
d7250517b0 Get rid of a bunch of dead code now that interval reconstruction is enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63026 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 19:18:06 +00:00
Owen Anderson
8af1e761f8 Fix an issue where LiveIntervals was trying to be smart about removing kill 
markers, and ended up foiling the interval reconstruction.

This allows us to turn on reconstruction in the pre alloc splitter, which
fixes a number of miscompilations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63025 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 19:12:06 +00:00
Evan Cheng
5b2e5893c6 Enhance logic in X86DAGToDAGISel::PreprocessForRMW which move load inside callseq_start to allow it to be folded into a call. It was not considering the cases where a token factor is between the load and the callseq_start. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63022 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 18:43:34 +00:00
Evan Cheng
b964f33873 Silence a bogus compiler warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63021 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 18:33:51 +00:00
Evan Cheng
c4b1abd81e Actually source file has already been uniquified into an id during isel. Eliminate the StringMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63009 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 07:53:42 +00:00
Evan Cheng
d0adbb5b7d Add data structure to define and track debug location during codegen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63008 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 07:41:49 +00:00
Mon P Wang
fe6d2cd9d1 Fixed optimization of combining two shuffles where the first shuffle inputs 
has a different number of elements than the output.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62998 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 04:39:00 +00:00
Dan Gohman
e7852d0144 Take the next steps in making SDUse more consistent with LLVM Use, and 
tidy up SDUse and related code.
 - Replace the operator= member functions with a set method, like
   LLVM Use has, and variants setInitial and setNode, which take
   care up updating use lists, like LLVM Use's does. This simplifies
   code that calls these functions.
 - getSDValue() is renamed to get(), as in LLVM Use, though most
   places can either use the implicit conversion to SDValue or the
   convenience functions instead.
 - Fix some more node vs. value terminology issues.

Also, eliminate the one remaining use of SDOperandPtr, and
SDOperandPtr itself.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62995 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 04:35:06 +00:00
Scott Michel
19c10e658a Untabify code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62991 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 03:37:41 +00:00
Scott Michel
c9c8b2a804 CellSPU: 
- Rename fcmp.ll test to fcmp32.ll, start adding new double tests to fcmp64.ll
- Fix select_bits.ll test
- Capitulate to the DAGCombiner and move i64 constant loads to instruction
  selection (SPUISelDAGtoDAG.cpp).

  <rant>DAGCombiner will insert all kinds of 64-bit optimizations after
  operation legalization occurs and now we have to do most of the work that
  instruction selection should be doing twice (once to determine if v2i64
  build_vector can be handled by SelectCode(), which then runs all of the
  predicates a second time to select the necessary instructions.) But,
  CellSPU is a good citizen.</rant>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62990 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 03:31:40 +00:00
Nate Begeman
5bf4b7556f Fix a typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62989 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 03:15:54 +00:00
Nate Begeman
c2fd67f697 De-identifying per sabre review 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62988 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 03:15:31 +00:00
Chris Lattner
18f02318a6 Handle single-entry phi nodes gracefully in condprop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62985 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 02:18:20 +00:00
Chris Lattner
3796a262c5 Fix PR3408 by making a non-obvious assumption very obvious, and 
handling the flaw inherent in that assumption.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62984 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 02:11:30 +00:00
Chris Lattner
f6784a3262 More cleanups and simplifications, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62983 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 01:57:01 +00:00
Chris Lattner
2ba2543df2 tidy asserts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62982 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 01:38:24 +00:00
Nate Begeman
51a0437b16 Map address space 256 to gs; similar mappings could be supported for the 
other x86 segments.  address space 0 is stack/default, 1-255 are reserved for
client use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62980 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 01:24:32 +00:00
Nate Begeman
740ab03f12 Support pattern matching various x86 sse shifts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62979 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 00:52:55 +00:00
Chris Lattner
4469c53cfc silence a warning when assertions are disabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62976 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 23:08:00 +00:00
Torok Edwin
afb564c697 should have removed the + when manually applying a patch! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62973 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 20:29:34 +00:00
Torok Edwin
c8ad2d2abf revert this patch for now, because Codegen does still want to generate SSE code, 
for example in the case of va-args. XFAIL associated tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62972 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 20:21:24 +00:00
Torok Edwin
7f1d5252c7 If user explicitly asks not to use SSE, don't force it. This fixes LLVM part of PR3402. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62967 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 17:58:56 +00:00
Dan Gohman
399461095b Eliminate the loop that searches through each of the operands 
of each use in the SelectionDAG ReplaceAllUses* functions. Thanks
to Chris for spotting this opportunity.

Also, factor out code from all 5 of the ReplaceAllUses* functions
into AddNonLeafNodeToCSEMaps, which is now renamed
AddModifiedNodeToCSEMaps to more accurately reflect its purpose.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62964 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 16:29:12 +00:00
Dan Gohman
74692c0d65 Whitespace tidiments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62963 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 16:21:38 +00:00
Dan Gohman
e77f89de8c Move the N->use_empty() assert from DeleteNode to 
DeleteNodeNotInCSEMaps, since DeleteNode just calls
DeleteNodeNotInCSEMaps.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62962 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 16:20:37 +00:00
Nick Lewycky
237d873439 Start generating arbitrary precision integer SCEVs. This removes the temporary 
code that rounded up and capped the size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62958 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 08:16:27 +00:00
Nick Lewycky
9d4979123e The function that does nothing but call malloc is noalias return. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62956 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 07:59:57 +00:00
Evan Cheng
1902a129a5 Private linkage support for PPC / Darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62955 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 06:32:01 +00:00