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Commit Graph

96 Commits

Author SHA1 Message Date
Devang Patel
64dd7a2e89 Large mechanical patch.
s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g

This sets the stage 
- to implement function notes as function attributes and 
- to distinguish between function attributes and return value attributes.

This requires corresponding changes in llvm-gcc and clang.

llvm-svn: 56622
2008-09-25 21:00:45 +00:00
Devang Patel
a3e9bf1bca s/ParameterAttributes/Attributes/g
llvm-svn: 56513
2008-09-23 23:03:40 +00:00
Duncan Sands
58d434d3e8 Reapply 55859. This doesn't change anything as
long as the callgraph is correct.  It checks
for wrong callgraphs more strictly.

llvm-svn: 55894
2008-09-08 11:05:51 +00:00
Owen Anderson
453bcfcf8d Revert r55859. This is breaking the build in the abscence of its companion commit.
llvm-svn: 55865
2008-09-05 23:36:01 +00:00
Duncan Sands
fdfa2d24fe Delete the removeCallEdgeTo callgraph method,
because it does not maintain a correct list
of callsites.  I discovered (see following
commit) that the inliner will create a wrong
callgraph if it is fed a callgraph with
correct edges but incorrect callsites.  These
were created by Prune-EH, and while it wasn't
done via removeCallEdgeTo, it could have been
done via removeCallEdgeTo, which is an accident
waiting to happen.  Use removeCallEdgeFor
instead.

llvm-svn: 55859
2008-09-05 21:43:04 +00:00
Duncan Sands
c568792f0a Remove trailing whitespace.
llvm-svn: 55835
2008-09-05 12:37:12 +00:00
Gordon Henriksen
2cc861a6c1 Rename some GC classes so that their roll will hopefully be clearer.
In particular, Collector was confusing to implementors. Several
thought that this compile-time class was the place to implement
their runtime GC heap. Of course, it doesn't even exist at runtime.
Specifically, the renames are:

  Collector               -> GCStrategy
  CollectorMetadata       -> GCFunctionInfo
  CollectorModuleMetadata -> GCModuleInfo
  CollectorRegistry       -> GCRegistry
  Function::getCollector  -> getGC (setGC, hasGC, clearGC)

Several accessors and nested types have also been renamed to be
consistent. These changes should be obvious.

llvm-svn: 54899
2008-08-17 18:44:35 +00:00
Dan Gohman
6564581be0 Enable first-class aggregates support.
Remove the GetResultInst instruction. It is still accepted in LLVM assembly
and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove
support for return instructions with multiple values. These are auto-upgraded
to use InsertValueInst instructions.

The IRBuilder still accepts multiple-value returns, and auto-upgrades them
to InsertValueInst instructions.

llvm-svn: 53941
2008-07-23 00:34:11 +00:00
Dan Gohman
91a43b082c Use Instruction::eraseFromParent().
llvm-svn: 52606
2008-06-21 22:08:46 +00:00
Dan Gohman
6a75f18b3b Clean up a use of std::distance.
llvm-svn: 52544
2008-06-20 17:11:32 +00:00
Dan Gohman
029d1e045e Teach InlineFunction how to differentiate between multiple-value
return statements and aggregate returns so that it handles both
correctly.

llvm-svn: 52519
2008-06-20 01:03:44 +00:00
Gabor Greif
48ffb6c7dc Fix a bunch of 80col violations that arose from the Create API change. Tweak makefile targets to find these better.
llvm-svn: 51143
2008-05-15 10:04:30 +00:00
Nick Lewycky
1f831c0f57 Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989
r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.

llvm-svn: 50265
2008-04-25 16:53:59 +00:00
Devang Patel
88251a96f1 Check type instead of no. of operands.
llvm-svn: 50179
2008-04-23 20:18:29 +00:00
Duncan Sands
98ed2df5f3 The "stacksave is not nounwind problem" no longer
needs to be fixed here - a previous commit made sure
that intrinsics always get the right attributes.
So remove no-longer needed code, and while there use
Intrinsic::getDeclaration rather than getOrInsertFunction. 

llvm-svn: 49337
2008-04-07 13:43:58 +00:00
Dale Johannesen
5c2c09c01b Mark calls to llvm.stacksave, llvm.stackrestore as
nounwind.  When such calls are inlined into something
else that is invoked, they were getting changed to invokes,
which is badness.

llvm-svn: 49299
2008-04-07 00:08:48 +00:00
Gabor Greif
6c6b8a57f3 API changes for class Use size reduction, wave 1.
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.

llvm-svn: 49277
2008-04-06 20:25:17 +00:00
Devang Patel
f749084aa3 Restore optimization that merges blocks when inline function
has single return value.

llvm-svn: 48162
2008-03-10 18:34:00 +00:00
Devang Patel
0df6cb288f Simplify
llvm-svn: 48161
2008-03-10 18:22:16 +00:00
Nick Lewycky
d98272094e Update the inliner and simplifycfg to handle unwind_to.
llvm-svn: 48086
2008-03-09 05:10:13 +00:00
Devang Patel
9543238662 Update inliner to handle functions that return multiple values.
llvm-svn: 48020
2008-03-07 20:06:16 +00:00
Devang Patel
844c248410 Use while loop.
llvm-svn: 47909
2008-03-04 21:59:49 +00:00
Devang Patel
84e9abbb60 Use cast instead of dyn_cast.
Update test to use multiple return value directly, instead of relying on -sretpromotion.

llvm-svn: 47907
2008-03-04 21:45:28 +00:00
Devang Patel
a14b91d6a3 Handle multiple return values.
llvm-svn: 47904
2008-03-04 21:15:15 +00:00
Duncan Sands
e77256b325 Revert r46393: readonly/readnone functions are no
longer allowed to write through byval arguments.

llvm-svn: 46416
2008-01-27 18:12:58 +00:00
Duncan Sands
792234c366 Create an explicit copy for byval parameters even
when inlining a readonly function.

llvm-svn: 46393
2008-01-26 06:41:49 +00:00
Duncan Sands
10316ffbb2 Do this more neatly.
llvm-svn: 46369
2008-01-25 22:06:51 +00:00
Chris Lattner
d90840eddc we don't have to make an explicit copy of a byval argument when
inlining a function if we know that the function does not write
to *any* memory.  This implements test/Transforms/Inline/byval2.ll

llvm-svn: 45912
2008-01-12 18:54:29 +00:00
Chris Lattner
bf51fecdc4 When inlining a functino with a byval argument, make an explicit
copy of it in case the callee modifies the struct.

llvm-svn: 45853
2008-01-11 06:09:30 +00:00
Chris Lattner
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev.
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Gordon Henriksen
c0a3899bbf GC poses hazards to the inliner. Consider:
define void @f() {
            ...
            call i32 @g()
            ...
    }

    define void @g() {
            ...
    }

The hazards are:

  - @f and @g have GC, but they differ GC. Inlining is invalid. This
    may never occur.
  - @f has no GC, but @g does. g's GC must be propagated to @f.

The other scenarios are safe:

  - @f and @g have the same GC.
  - @f and @g have no GC.
  - @g has no GC.

This patch adds inliner checks for the former two scenarios.

llvm-svn: 45351
2007-12-25 03:10:07 +00:00
Duncan Sands
56f3add5b7 When inlining through an 'nounwind' call, mark inlined
calls 'nounwind'.  It is important for correct C++
exception handling that nounwind markings do not get
lost, so this transformation is actually needed for
correctness.

llvm-svn: 45218
2007-12-19 21:13:37 +00:00
Duncan Sands
242f80be86 Rename isNoReturn to doesNotReturn, and isNoUnwind to
doesNotThrow.

llvm-svn: 45160
2007-12-18 09:59:50 +00:00
Duncan Sands
3a0d757bd5 Make invokes of inline asm legal. Teach codegen
how to lower them (with no attempt made to be
efficient, since they should only occur for
unoptimized code).

llvm-svn: 45108
2007-12-17 18:08:19 +00:00
Christopher Lamb
a608afb52e Change the PointerType api for creating pointer types. The old functionality of PointerType::get() has become PointerType::getUnqual(), which returns a pointer in the generic address space. The new prototype of PointerType::get() requires both a type and an address space.
llvm-svn: 45082
2007-12-17 01:12:55 +00:00
Duncan Sands
830037ab2d Revert this part of r45073 until the verifier is
changed not to reject invoke of inline asm.

llvm-svn: 45077
2007-12-16 21:01:21 +00:00
Duncan Sands
bf62f62058 Make instcombine promote inline asm calls to 'nounwind'
calls.  Remove special casing of inline asm from the
inliner.  There is a potential problem: the verifier
rejects invokes of inline asm (not sure why).  If an
asm call is not marked "nounwind" in some .ll, and
instcombine is not run, but the inliner is run, then
an illegal module will be created.  This is bad but
I'm not sure what the best approach is.  I'm tempted
to remove the check in the verifier...

llvm-svn: 45073
2007-12-16 15:51:49 +00:00
Duncan Sands
1e2e4972ff Rather than having special rules like "intrinsics cannot
throw exceptions", just mark intrinsics with the nounwind
attribute.  Likewise, mark intrinsics as readnone/readonly
and get rid of special aliasing logic (which didn't use
anything more than this anyway).

llvm-svn: 44544
2007-12-03 20:06:50 +00:00
Duncan Sands
3602011bec Fix PR1146: parameter attributes are longer part of
the function type, instead they belong to functions
and function calls.  This is an updated and slightly
corrected version of Reid Spencer's original patch.
The only known problem is that auto-upgrading of
bitcode files doesn't seem to work properly (see
test/Bitcode/AutoUpgradeIntrinsics.ll).  Hopefully
a bitcode guru (who might that be? :) ) will fix it.

llvm-svn: 44359
2007-11-27 13:23:08 +00:00
David Greene
5b85021be8 Update InvokeInst to work like CallInst
llvm-svn: 41506
2007-08-27 19:04:21 +00:00
Chris Lattner
601aa5b489 Fix PR1335 and Transforms/Inline/2007-04-15-InlineEH.ll
llvm-svn: 36090
2007-04-15 21:38:06 +00:00
Dan Gohman
d0a0ea9916 Change uses of Function::front to Function::getEntryBlock for readability.
llvm-svn: 35265
2007-03-22 16:38:57 +00:00
Dan Gohman
e24135a647 Fix typos in comments.
llvm-svn: 34456
2007-02-20 20:52:03 +00:00
Chris Lattner
ce2cc6e404 Eliminate use of ctors that take vectors.
llvm-svn: 34219
2007-02-13 02:10:56 +00:00
Chris Lattner
71fe09f397 Switch inliner over to use DenseMap instead of std::map for ValueMap. This
speeds up the inliner 16%.

llvm-svn: 33801
2007-02-03 00:08:31 +00:00
Chris Lattner
23628987e2 The inliner/cloner can now optionally take TargetData info, which can be
used by constant folding.

llvm-svn: 33676
2007-01-30 23:22:39 +00:00
Reid Spencer
19af04a142 For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid
confusion with external linkage types.

llvm-svn: 33663
2007-01-30 20:08:39 +00:00
Chris Lattner
a2f5c06174 prepare for adjustment to getOrInsertFunction method
llvm-svn: 32985
2007-01-07 07:54:34 +00:00
Reid Spencer
0fb7fa82d4 For PR950:
This patch replaces signed integer types with signless ones:
1. [US]Byte -> Int8
2. [U]Short -> Int16
3. [U]Int   -> Int32
4. [U]Long  -> Int64.
5. Removal of isSigned, isUnsigned, getSignedVersion, getUnsignedVersion
   and other methods related to signedness. In a few places this warranted
   identifying the signedness information from other sources.

llvm-svn: 32785
2006-12-31 05:48:39 +00:00
Chris Lattner
e55d70cedc Implement the first half of Transforms/Inline/inline_cleanup.ll
llvm-svn: 30303
2006-09-13 19:23:57 +00:00