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6ac0e76ff4
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8276 Commits

Author SHA1 Message Date
Dan Gohman
6ac0e76ff4 Sink a #include <map> to where it's actually needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88956 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 20:40:47 +00:00
Dan Gohman
552c0dff34 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88953 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 20:35:59 +00:00
Bob Wilson
4a504c6ff8 Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88940 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 19:33:27 +00:00
Devang Patel
270a97430d Add VISIBILITY_HIDDEN marker. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88939 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 19:20:48 +00:00
Bob Wilson
c4a0c843e4 Fix some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88932 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 18:54:08 +00:00
Bob Wilson
d34f5d91bc Whitespace: be consistent with pointer syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88929 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 18:08:46 +00:00
Bob Wilson
3cbc312087 Clean up whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88927 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 17:56:13 +00:00
David Greene
ddff941357 Support spill comments. 
Have the asm printer emit a comment if an instruction is a spill or
reload and have the spiller mark copies it introdues so the asm printer
can also annotate those.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88911 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 15:12:23 +00:00
Evan Cheng
39aa7251a2 Check if subreg index is zero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88899 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 06:31:49 +00:00
Evan Cheng
285a7d57dc For some targets, a copy can use a register multiple times, e.g. ppc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88895 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 05:52:06 +00:00
Lang Hames
79ac32de3b Fixes the bug exposed by Anton's test case in PR 5495: 
Make sure when ProcessImplicitDefs removes a copy which kills its source reg that it
removes the copy from said reg's Kills list.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88881 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 02:07:31 +00:00
Lang Hames
b126d0530d Fix for the original bug in PR5495 - Look at uses as well as defs when determining the PHI-copy insert point. 
- Patch by Andrew Canis!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88880 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 02:00:09 +00:00
Lang Hames
e98b4b0695 Added an assert to the PBQP allocator to catch infinite cost solutions which might otherwise lead to miscompilations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88829 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 04:39:51 +00:00
Jim Grosbach
c04cae9c9b Do not merge jump tables this early. Branch folding will do any necessary 
merges, and until then, it's useful to keep the tables separate for ease
of manipulation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88806 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 20:15:03 +00:00
Jim Grosbach
68bb60f6a4 Add function to replace a destination MBB in a single jump table 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88804 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 20:09:13 +00:00
Sanjiv Gupta
9a501cf19d revert 88761 as it fails builds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88762 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 07:22:25 +00:00
Sanjiv Gupta
6fb01a7750 Fix debug info crashes for PIC16. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88761 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 06:19:49 +00:00
Evan Cheng
fae3e92345 Added getSubRegIndex(A,B) that returns subreg index of A to B. Use it to replace broken code in VirtRegRewriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88753 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 03:42:17 +00:00
Evan Cheng
d57cdd5683 - Change TargetInstrInfo::reMaterialize to pass in TargetRegisterInfo. 
- If destination is a physical register and it has a subreg index, use the
  sub-register instead.
This fixes PR5423.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88745 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 02:55:43 +00:00
Evan Cheng
8fdd84cfa7 Fix PR5412: Fix an inverted check and another missing sub-register check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88738 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 02:09:09 +00:00
Dan Gohman
ed9bab3b4d Enable the tail call optimization when the caller returns undef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88737 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 02:06:30 +00:00
Jakob Stoklund Olesen
3b6ced1510 Fix bug in -split-phi-edges. 
When splitting an edge after a machine basic block with fall-through, we
forgot to insert a jump instruction. Fix this by calling updateTerminator() on
the fall-through block when relevant.

Also be more precise in PHIElimination::isLiveIn.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88728 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 00:38:13 +00:00
Jakob Stoklund Olesen
9aebb61daf Update MachineDominator information 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88727 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 00:38:06 +00:00
Lang Hames
b3661585c0 Added an API to the SlotIndexes pass to allow new instructions to be inserted into the numbering. 
PreAllocSplitting is now using this API to insert code.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88725 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 00:02:51 +00:00
Evan Cheng
1f6a3c820a Fix PR5411. Bug in UpdateKills. A reg def partially define its super-registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88719 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 23:16:41 +00:00
Jakob Stoklund Olesen
1222287543 Fix PHIElimination optimization that uses MBB->getBasicBlock. 
The BasicBlock associated with a MachineBasicBlock does not necessarily
correspond to the code in the MBB.

Don't insert a new IR BasicBlock when splitting critical edges. We are not
supposed to modify the IR during codegen, and we should be able to do just
fine with a NULL BB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88707 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 21:56:15 +00:00
Jakob Stoklund Olesen
ce727d0da0 Add MachineFunction::verify() to call the machine code verifier directly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88706 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 21:56:09 +00:00
Jakob Stoklund Olesen
1dc0fcbaed Fix polarity of a CFG check in machine verifier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88704 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 21:55:54 +00:00
Dan Gohman
24f8e29b4e Use .data() instead of .c_str() when nul-termination is not needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88703 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 21:55:31 +00:00
David Greene
1924aabf99 Move DebugInfo checks into EmitComments and remove them from 
target-specific AsmPrinters.  Not all comments need DebugInfo.

Re-enable the line numbers comment test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88697 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 21:34:57 +00:00
Dan Gohman
c4c550c758 When optimizing for size, don't tail-merge unless it's likely to be a 
code-size win, and not when it's only likely to be code-size neutral,
such as when only a single instruction would be eliminated and a new
branch would be required.

This fixes rdar://7392894.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88692 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 21:02:15 +00:00
Evan Cheng
236490d870 Fix PR5410: LiveVariables lost subreg def: 
D0<def,dead> = ...
...
             = S0<use, kill>
S0<def>      = ...
...
D0<def>      = 

The first D0 def is correctly marked dead, however, livevariables should have
added an implicit def of S0 or we end up with a use without a def.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88690 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 20:36:40 +00:00
David Goodwin
87d21b92fc Allow target to specify regclass for which antideps will only be broken along the critical path. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88682 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 19:52:48 +00:00
Dan Gohman
01205a80f5 Don't let a noalias difference disrupt the tailcall optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88672 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 18:49:38 +00:00
Devang Patel
3fb6bd690a Ignore nameless variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87069 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 02:25:26 +00:00
Dale Johannesen
1e608819aa Adjust isConstantSplat to allow for big-endian targets. 
PPC is such a target; make it work.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87060 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 01:45:18 +00:00
Bill Wendling
ecc260e403 Simplify code a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87040 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 23:13:08 +00:00
Bill Wendling
ed060dcb5c Refactor code that checks if it's a call to a "nounwind" function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87036 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 21:59:20 +00:00
David Greene
b3bc115a24 Do some cleanups suggested by Chris. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87034 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 21:49:55 +00:00
David Greene
6bedb30220 Set the ReloadReuse AsmPrinter flag where appropriate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87030 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 21:07:54 +00:00
Daniel Dunbar
bf4af353ed Fix -Asserts warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87024 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 20:53:43 +00:00
Bill Wendling
ac18929801 If there's more than one function operand to a call instruction, be conservative 
and don't assume that the call doesn't throw. It would be nice if there were a
way to determine which is the callee and which is a parameter. In practice, the
architecture we care about normally only have one operand for a call instruction
(x86 and arm).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87023 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 20:51:53 +00:00
David Greene
3f2bf85d14 Add a bool flag to StackObjects telling whether they reference spill 
slots.  The AsmPrinter will use this information to determine whether to
print a spill/reload comment.

Remove default argument values.  It's too easy to pass a wrong argument
value when multiple arguments have default values.  Make everything
explicit to trap bugs early.

Update all targets to adhere to the new interfaces..


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87022 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 20:49:22 +00:00
Benjamin Kramer
05872ea804 Add compare_lower and equals_lower methods to StringRef. Switch all users of 
StringsEqualNoCase (from StringExtras.h) to it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87020 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 20:36:59 +00:00
David Greene
cf62632d83 Make FixedStackPseudoSourceValue a first-class PseudoSourceValue by 
making it visible to clients and adding LLVM-style cast capability.
This will be used by AsmPrinter to determine when to emit spill comments
for an instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87019 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 20:25:07 +00:00
David Goodwin
12dd99dc30 Rename registers to break output dependencies in addition to anti-dependencies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87015 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 19:08:21 +00:00
Devang Patel
70d75ca310 "Attach debug info with llvm instructions" mode was enabled a month ago. Now make it permanent and remove old way of inserting intrinsics to encode debug info for line number and scopes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87014 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 19:02:56 +00:00
Evan Cheng
60f9061820 RegScavenger::enterBasicBlock should always reset register state. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86972 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 07:49:10 +00:00
Jim Grosbach
7707a0df5b Move the utility function UpdateTerminator() from CodePlacementOpt() into 
MachineBasicBlock so other passes can utilize it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86947 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 03:55:33 +00:00
Dan Gohman
72b2990a74 Make the BranchFolderPass class local to BranchFolding.cpp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86928 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 01:59:26 +00:00