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94a4a5eec6
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8455 Commits

Author SHA1 Message Date
Lang Hames
94a4a5eec6 Added CalcSpillWeights to CMakeLists. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91275 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 07:43:25 +00:00
Bill Wendling
85de1e5bad Whitespace changes, comment clarification. No functional changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91274 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 06:51:19 +00:00
Lang Hames
a937f220e1 Moved spill weight calculation out of SimpleRegisterCoalescing and into its own pass: CalculateSpillWeights. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91273 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 06:49:42 +00:00
Anton Korobeynikov
60283f9bc9 Fix weird typo which leads to unallocated memory access for nodes with 4 results. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91233 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-13 01:00:59 +00:00
Dan Gohman
a0474a83bf Delete an unnecessary line. The VTSDNode on a SIGN_EXTEND_REG is never 
a vector type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91181 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 23:26:08 +00:00
Bill Wendling
c42a0b75a4 Don't try to move a MBB into the fall-through position if it's a landing pad or 
branches only to a landing pad. Without this check, the compiler would go into
an infinite loop because the branch to a landing pad is an "abnormal" edge which
wasn't being taken into account.

This is the meat of that fix:

  if (!PrevBB.canFallThrough() && !MBB->BranchesToLandingPad(MBB)) {

The other stuff is simplification of the "branches to a landing pad" code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91161 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 21:47:36 +00:00
Devang Patel
d037d7a497 Construct CompileUnits lazily. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91159 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 21:37:07 +00:00
Dan Gohman
87862e77bb Implement vector widening, splitting, and scalarizing for SIGN_EXTEND_INREG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91158 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 21:31:27 +00:00
Dan Gohman
a4f9cc4e55 Fix the result type of SELECT nodes lowered from Select instructions with 
aggregate return values. This fixes PR5754.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91145 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 19:50:50 +00:00
Anton Korobeynikov
817a46454a Honour setHasCalls() set from isel. 
This is used in some weird cases like general dynamic TLS model.
This fixes PR5723

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91144 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 19:39:55 +00:00
Bill Wendling
a288b2f43a Revert part of r91101 which was causing an infinite loop in the self-hosting 
build bots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91113 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 10:43:41 +00:00
Evan Cheng
ac94863a1c Coalesce insert_subreg undef, x first to avoid phase ordering issue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91103 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 06:01:00 +00:00
Bill Wendling
64bdde2093 Address comments on last patch: 
- Loosen the restrictions when checking of it branches to a landing pad.
- Make the loop more efficient by checking the '.insert' return value.
- Do cheaper checks first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91101 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 03:14:18 +00:00
Bill Wendling
4bde1ab82d A machine basic block may end in an unconditional branch, however it may have 
more than one successor. Normally, these extra successors are dead. However,
some of them may branch to exception handling landing pads. If we remove those
successors, then the landing pads could go away if all predecessors to it are
removed. Before, it was checking if the direct successor was the landing
pad. But it could be the result of jumping through multiple basic blocks to get
to it. If we were to only check for the existence of an EH_LABEL in the basic
block and not remove successors if it's in there, then it could stop actually
dead basic blocks from being removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91092 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 01:49:14 +00:00
Devang Patel
edb4563cea If VariableDIe is not created (may be because global was optimzed away) then do not try to use the variable die. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91077 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 23:25:41 +00:00
Evan Cheng
6fd78ec8a2 It's not safe to coalesce a move where src and dst registers have different subregister indices. e.g.: 
%reg16404:1<def> = MOV8rr %reg16412:2<kill>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91061 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 20:59:45 +00:00
Devang Patel
c366f83d89 Refactor code that finds context for a given die. 
Create global variable DIEs after creating subprogram DIEs. This allows function level static variable's to find their context at the time of DIE creation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91055 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 19:14:49 +00:00
Devang Patel
16ced733f3 Refactor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91051 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 18:05:33 +00:00
Jakob Stoklund Olesen
cf97036675 Also attempt trivial coalescing for live intervals that end in a copy. 
The coalescer is supposed to clean these up, but when setting up parameters
for a function call, there may be copies to physregs. If the defining
instruction has been LICM'ed far away, the coalescer won't touch it.

The register allocation hint does not always work - when the register
allocator is backtracking, it clears the hints.

This patch is more conservative than r90502, and does not break
483.xalancbmk/i686. It still breaks the PowerPC bootstrap, so it is disabled
by default, and can be enabled with the -trivial-coalesce-ends option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91049 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 17:48:32 +00:00
Devang Patel
8a24114b16 Reapply r90858, a cleanup patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90979 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 18:24:21 +00:00
David Goodwin
990d285765 <rdar://problem/7453528>. Track only physical registers that are valid for the target. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90970 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 17:18:22 +00:00
Lang Hames
6194569d22 Added a new "splitting" spiller. 
When a call is placed to spill an interval this spiller will first try to
break the interval up into its component values. Single value intervals and
intervals which have already been split (or are the result of previous splits)
are spilled by the default spiller.

Splitting intervals as described above may improve the performance of generated
code in some circumstances. This work is experimental however, and it still
miscompiles many benchmarks. It's not recommended for general use yet.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90951 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 05:39:12 +00:00
Evan Cheng
7bd6478cd6 Teach InferPtrAlignment to infer GV+cst alignment and use it to simplify x86 isl lowering code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90925 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:53:58 +00:00
Evan Cheng
64fa4a9584 Move isConsecutiveLoad to SelectionDAG. It's not target dependent and it's primary used by selectdag passes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90922 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:36:00 +00:00
Evan Cheng
de2ace1758 Infer alignment for non-fixed stack object. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90919 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:17:24 +00:00
Evan Cheng
7ced2e0b30 Add const qualifier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90918 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:10:37 +00:00
Evan Cheng
f2dc5c785d Refactor InferAlignment out of DAGCombine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90917 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:04:59 +00:00
Devang Patel
0000fadb00 Revert 90858 90875 and 90805 for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90898 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 23:21:45 +00:00
Devang Patel
a3a60c6c49 Cleanup. 
There is no need to supply ModuleCU to addType() as a parameter.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90858 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 15:31:31 +00:00
Devang Patel
018b66038c Do not try to push dead variable's debug info into namespace info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90857 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 15:01:35 +00:00
Evan Cheng
3a41ddb1b9 Watch out for duplicated PHI instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90816 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 23:11:03 +00:00
Evan Cheng
d8f079c25e Follow up to 90488. Turn a check into an assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90815 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 23:10:34 +00:00
Devang Patel
4063f6bcc7 Add support to emit debug info for c++ style namespaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90805 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 21:41:32 +00:00
Evan Cheng
80564f761a Delete code accidentally left behind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90804 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 21:19:33 +00:00
Evan Cheng
75eb535843 Pre-regalloc tale duplication. Work in progress. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90759 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 10:15:19 +00:00
Evan Cheng
7e572eb37f If BB is empty, insert PHI before end() instead of front(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90744 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 03:07:01 +00:00
Anton Korobeynikov
1c3436a67a Truncate the arguments of llvm.frameaddress / llvm.returnaddress intrinsics from i32 to platform's largest native type 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90741 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 02:28:26 +00:00
Dan Gohman
87bad707ed Remove old DBG_LABEL code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90669 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 17:56:26 +00:00
Dan Gohman
714efc63d4 Remove the unused DisableLegalizeTypes option and related code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90668 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 17:51:33 +00:00
Bill Wendling
dc492e0370 Temporarily revert r90502. It was causing the llvm-gcc bootstrap on PPC to fail. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90653 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 07:30:23 +00:00
Dan Gohman
b3b9821cde Don't print a space before the : between the file name and line number. 
And separate the directory and file name with a '/'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90641 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 02:00:34 +00:00
Dan Gohman
eecb9919a4 Print newlines after printing labels for debug info, so that the output 
isn't cluttered with things like "Llabel47:Llabel48:  movq  (%rsi), %xmm3"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90638 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 01:42:34 +00:00
Dan Gohman
381ca5572e Don't blindly set the debug location for PHI node copies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90637 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 01:29:04 +00:00
Dan Gohman
6e3ff37547 Make TargetSelectInstruction protected and called from FastISel.cpp 
instead of SelectionDAGISel.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90636 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 01:27:58 +00:00
Dan Gohman
864e2efce2 Remove the target hook TargetInstrInfo::BlockHasNoFallThrough in favor of 
MachineBasicBlock::canFallThrough(), which is target-independent and more
thorough.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90634 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:44:40 +00:00
Dan Gohman
735985fbbe Simplify this code: don't call AnalyzeBranch before doing simpler checks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90633 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:32:59 +00:00
Dan Gohman
07f111e7b7 The debug information for an LLVM Instruction applies to that Instruction 
and that Instruction only. Implement this by setting the "current debug position"
back to Unknown after processing each instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90632 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:27:08 +00:00
Dan Gohman
3b9bc04eda Fix this code to use DIScope instead of DICompileUnit, as in r90181. 
Don't print "SrcLine"; just print the filename and line number, which
is obvious enough and more informative.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90631 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:23:29 +00:00
Dan Gohman
4b808b014b Don't print the debug directory; it's often long and uninteresting. Omit 
the column number if it is not known. Handle the case of a missing filename
better.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90630 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:20:51 +00:00
Dan Gohman
fcafe44f56 Print a space between the comment character and the text. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90621 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 23:19:55 +00:00