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778 Commits

Author SHA1 Message Date
Dale Johannesen
ae08bdb4cf Split ParameterAttributes.h, putting the complicated 
stuff into ParamAttrsList.h.  Per feedback from
ParamAttrs changes.

llvm-svn: 47504
 2008-02-22 22:17:59 +00:00
Anton Korobeynikov
2523c8be38 Get rid of hash_map. Use StringMap instead 
llvm-svn: 47373
 2008-02-20 11:27:49 +00:00
Anton Korobeynikov
fd6b669c80 Make Transforms to be 4.3 warnings-clean 
llvm-svn: 47371
 2008-02-20 11:26:25 +00:00
Anton Korobeynikov
0c5e186924 Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings. 
llvm-svn: 47367
 2008-02-20 11:08:44 +00:00
Dale Johannesen
ecb2b233b1 Expand ParameterAttributes to 32 bits (in preparation 
for adding alignment info, not there yet).  Clean up
interfaces to reference ParameterAttributes consistently.

llvm-svn: 47342
 2008-02-19 21:38:47 +00:00
Duncan Sands
a85448506d Simplify caller updating using a CallSite, as 
requested by Chris.  While there, do the same
for an existing function committed by someone
called "lattner" :)

llvm-svn: 47273
 2008-02-18 17:32:13 +00:00
Duncan Sands
cd0325cce1 Remove any 'nest' parameter attributes if the function 
is not passed as an argument to a trampoline intrinsic.

llvm-svn: 47220
 2008-02-16 20:56:04 +00:00
Chris Lattner
c16c85444c remove some dead code. 
llvm-svn: 47066
 2008-02-13 17:18:26 +00:00
Duncan Sands
454a8eaee9 Don't drop function/call return attributes like 'nounwind'. 
llvm-svn: 46645
 2008-02-01 20:37:16 +00:00
Chris Lattner
e08ec140e0 Don't let globalopt hack on volatile loads or stores. 
llvm-svn: 46523
 2008-01-29 19:01:37 +00:00
Dan Gohman
aad233ea10 Use empty() instead of comparing size() with zero. 
llvm-svn: 46514
 2008-01-29 13:02:09 +00:00
Chris Lattner
dc0c4352bd Transform calls to memcpy into llvm.memcpy calls, patch by Eli Friedman. 
llvm-svn: 46433
 2008-01-28 04:41:43 +00:00
Evan Cheng
c187163bab DAE bug fix. Don't lose parameter attributes on vararg arguments. 
llvm-svn: 46113
 2008-01-17 04:18:54 +00:00
Chris Lattner
c32be7e6b2 Fix arg promotion to propagate the correct attrs on the calls to 
promoted functions.  This is important for varargs calls in 
particular.  Thanks to duncan for providing a great testcase.

llvm-svn: 46108
 2008-01-17 01:17:03 +00:00
Chris Lattner
81a39bb7ba Handle attribute(used) global variables that are i8. 
llvm-svn: 46090
 2008-01-16 21:35:43 +00:00
Devang Patel
a8d63b0b30 Do not strip llvm.used values. 
llvm-svn: 46045
 2008-01-16 03:33:05 +00:00
Chris Lattner
efb498eddb Fix the miscompilation of MiBench/consumer-lame that was exposed by Evan's 
byval work.  This miscompilation is due to the program indexing an array out
of range and us doing a transformation that broke this.

llvm-svn: 45949
 2008-01-14 02:09:12 +00:00
Chris Lattner
5d135cc20a The isNotSuitableForSRA property is now dead, don't compute it. 
llvm-svn: 45948
 2008-01-14 01:32:52 +00:00
Chris Lattner
760b05a331 Change SRAGlobal to not depend on isNotSuitableForSRA, which makes it very 
difficult to understand the invariants.

llvm-svn: 45947
 2008-01-14 01:31:05 +00:00
Chris Lattner
c2933482a0 Make the 'shrink global to bool' optimization more self contained, and thus 
easier to show that its safe.  No functionality change.

llvm-svn: 45946
 2008-01-14 01:17:44 +00:00
Duncan Sands
560625b701 Small simplification. 
llvm-svn: 45932
 2008-01-13 08:12:17 +00:00
Chris Lattner
fb5876f0be Allow clients to specify the inline threshold when creating 
the inliner pass.  Patch by Robert Zeh.

llvm-svn: 45903
 2008-01-12 06:49:13 +00:00
Duncan Sands
6f49217a5e When DAE drops the varargs part of a function, ensure any 
attributes on the vararg call arguments are also dropped.

llvm-svn: 45892
 2008-01-11 23:13:45 +00:00
Chris Lattner
a1246ba8ed Teach argpromote to ruthlessly hack small byval structs when it can 
get away with it, which exposes opportunities to eliminate the memory
objects entirely.  For example, we now compile byval.ll to:

define internal void @f1(i32 %b.0, i64 %b.1) {
entry:
	%tmp2 = add i32 %b.0, 1		; <i32> [#uses=0]
	ret void
}

define i32 @main() nounwind  {
entry:
	call void @f1( i32 1, i64 2 )
	ret i32 0
}

This seems like it would trigger a lot for code that passes around small
structs (e.g. SDOperand's or _Complex)...

llvm-svn: 45886
 2008-01-11 22:31:41 +00:00
Chris Lattner
8644bdca87 Use smallptrset instead of std::set for efficiency. 
llvm-svn: 45878
 2008-01-11 19:36:30 +00:00
Chris Lattner
44aaf42d14 a byval argument is guaranteed to be valid to load. 
llvm-svn: 45877
 2008-01-11 19:34:32 +00:00
Chris Lattner
129a0e4f7d Update this code to use eraseFromParent where possible. Compute 
whether an argument is byval and pass into isSafeToPromoteArgument.

llvm-svn: 45876
 2008-01-11 19:20:39 +00:00
Chris Lattner
85a0b511cc replace a loop with a constant time check. 
llvm-svn: 45875
 2008-01-11 18:55:10 +00:00
Chris Lattner
c9666b967f another minor datastructure tweak. 
llvm-svn: 45874
 2008-01-11 18:47:45 +00:00
Chris Lattner
a6b0783f14 start using smallvector to avoid vector heap thrashing. 
llvm-svn: 45873
 2008-01-11 18:43:58 +00:00
Duncan Sands
7955cf0cd7 Small cleanup for handling of type/parameter attribute 
incompatibility.

llvm-svn: 45704
 2008-01-07 17:16:06 +00:00
Duncan Sands
fd975e4b3d The transform that tries to turn calls to bitcast functions into 
direct calls bails out unless caller and callee have essentially
equivalent parameter attributes.  This is illogical - the callee's
attributes should be of no relevance here.  Rework the logic, which
incidentally fixes a crash when removed arguments have attributes.

llvm-svn: 45658
 2008-01-06 18:27:01 +00:00
Chris Lattner
d4c66656a1 Fix PR1896 
llvm-svn: 45568
 2008-01-04 05:04:53 +00:00
Chris Lattner
028f584087 add missing #include 
llvm-svn: 45516
 2008-01-02 23:41:05 +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
Chris Lattner
8193d4af33 remove attribution from lib Makefiles. 
llvm-svn: 45415
 2007-12-29 20:09:26 +00:00
Gordon Henriksen
90d48b077d Fixing several transforms which would drop the collector attribute 
when copying functions.

llvm-svn: 45356
 2007-12-25 22:16:06 +00:00
Duncan Sands
85ca85c070 Make DAE not wipe out attributes on calls, and not drop 
return attributes on the floor.  In the case of a call
to a varargs function where the varargs arguments are
being removed, any call attributes on those arguments
need to be dropped.  I didn't do this because I plan to
make it illegal to have such attributes (see next patch).
With this change, compiling the gcc filter2 eh test at -O0
and then running opt -std-compile-opts on it results in
a correctly working program (compiling at -O1 or higher
results in the test failing due to a problem with how we
output eh info into the IR).

llvm-svn: 45285
 2007-12-21 19:16:16 +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
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
b7ac459292 Make PruneEH update the nounwind/noreturn attributes 
on functions as it calculates them.

llvm-svn: 44802
 2007-12-10 19:09:40 +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
Anton Korobeynikov
f46167c649 Don't crash on bogus llvm.noinline. This is first part of PR1817 (preventing reduction) 
llvm-svn: 44281
 2007-11-22 22:30:10 +00:00
Chris Lattner
64ca1fd02a Fix PR1788 by taking the approach suggested by Richard Smith. 
Thanks to him for his detailed analysis of the problem.

llvm-svn: 44162
 2007-11-15 06:10:55 +00:00
Nick Lewycky
a0c9b79552 Allow the block extractor take to take a list of basic blocks to not extract 
from a file containing Function/BasicBlock pairings. This is not safe against
anonymous or abnormally-named Funcs or BBs.

Make bugpoint use this interface to pass the BBs list to the child bugpoint.

llvm-svn: 44101
 2007-11-14 06:47:06 +00:00
Chris Lattner
cb7db77dd1 Fix the regression on Transforms/GlobalOpt/deadglobal-2.ll from my 
patch on friday.

llvm-svn: 44068
 2007-11-13 21:46:23 +00:00
Chris Lattner
a82bbe25f4 Tighten up a check for folding away loads from (newly constant) globals. This 
fixes a crash on Transforms/GlobalOpt/2007-11-09-GEP-GEP-Crash.ll and 
rdar://5585488.

llvm-svn: 43949
 2007-11-09 17:33:02 +00:00
Gordon Henriksen
8188f028a2 Deleting redundant copy of block extractor pass. See also PR1775. 
llvm-svn: 43694
 2007-11-05 01:54:05 +00:00