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26937 Commits

Author SHA1 Message Date
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