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3311a1f8f0
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6514 Commits

Author SHA1 Message Date
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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