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Author SHA1 Message Date
Nick Lewycky
a9c6af0bb8 Reapply patch from r62553, with a fix to avoid looking for an ffi.h that isn't 
there.

This changes the interpreter to use libffi. After this patch, the interpreter
will barely be able to call any external functions if built on a system without
libffi installed (just enough to pass 'make check' really). But with libffi,
we can now call any function that isn't variadic or taking a struct or vector
parameter (but pointer to struct is fine). Patch by Alexei Svitkine!

llvm-svn: 63723
 2009-02-04 06:26:47 +00:00
Owen Anderson
c418b82207 Finish making AliasAnalysis aware of the fact that most atomic intrinsics only dereference their arguments, and enhance 
BasicAA to make use of this fact when computing ModRef info.

llvm-svn: 63718
 2009-02-04 05:16:46 +00:00
Dale Johannesen
19fc835580 Remove non-DebugLoc forms of the exotic forms 
of Lod and Sto; patch uses.

llvm-svn: 63716
 2009-02-04 02:34:38 +00:00
Chris Lattner
49498bdff4 fix a pretty serious bug in StringMap where GetOrCreate(strstart,strend, z) 
would not set new values to Z.

llvm-svn: 63707
 2009-02-04 01:54:10 +00:00
Chris Lattner
2291a8be5e add a friend needed by a stringmap change. 
llvm-svn: 63706
 2009-02-04 01:51:53 +00:00
Dale Johannesen
52d1d8d5a0 Remove some more non-DebugLoc versions of construction 
functions, with callers adjusted to fit.

llvm-svn: 63705
 2009-02-04 01:48:28 +00:00
Dale Johannesen
94df14c046 Check in file I forgot. 
llvm-svn: 63704
 2009-02-04 01:33:20 +00:00
Dale Johannesen
2c4af04551 Remove a few non-DebugLoc versions of node creation 
functions.

llvm-svn: 63703
 2009-02-04 01:17:06 +00:00
Mon P Wang
430525dc4f Fixes a case where we generate an incorrect mask for pshfhw in the presence 
of undefs and incorrectly determining if we have punpckldq.

llvm-svn: 63702
 2009-02-04 01:16:59 +00:00
Devang Patel
2fac28a8c7 While folding vallue comparison terminators ignore dbg intrinsics. 
llvm-svn: 63700
 2009-02-04 01:06:11 +00:00
Dale Johannesen
fa244d6e2d Patch up omissions in DebugLoc propagation. 
llvm-svn: 63693
 2009-02-04 00:33:20 +00:00
Dale Johannesen
e8a874130f Fill in more omissions in DebugLog propagation. 
I think that's it for this directory.

llvm-svn: 63690
 2009-02-04 00:13:36 +00:00
Bill Wendling
224d0d60fe Constify and don't return a reference. 
llvm-svn: 63689
 2009-02-04 00:05:34 +00:00
Devang Patel
bc5a1a7007 Ignore dbg intrinsics while hoisting common code in the two blocks up into the branch block. 
llvm-svn: 63687
 2009-02-04 00:03:08 +00:00
Dale Johannesen
b129ab17af DebugLoc propagation; adjustment to things omitted 
from SelectionDagBuild.

llvm-svn: 63680
 2009-02-03 23:04:43 +00:00
Bill Wendling
600f4ccb6c Erm. Would be nice to initialize this variable. . . 
llvm-svn: 63677
 2009-02-03 22:55:54 +00:00
Bill Wendling
5179b78c6b Add getDebugLocTuple to retrieve the DebugLocTuple for a given DebugLoc object. 
llvm-svn: 63676
 2009-02-03 22:49:58 +00:00
Bill Wendling
7627f9e74a Add getter for the index. 
llvm-svn: 63675
 2009-02-03 22:49:14 +00:00
Dale Johannesen
f9b2746030 Need this file too. 
llvm-svn: 63674
 2009-02-03 22:26:34 +00:00
Dale Johannesen
b7f2857776 Add some DL propagation to places that didn't 
have it yet.  More coming.

llvm-svn: 63673
 2009-02-03 22:26:09 +00:00
Devang Patel
4b56b3c66e Do not let dbg intrinsic block folding of two entry phi node. 
llvm-svn: 63671
 2009-02-03 22:12:02 +00:00
Devang Patel
ffd9b999f8 If "optimize for size" attribute is set then block non-trivial loop unswitches but allow trivial loop unswitches. 
llvm-svn: 63670
 2009-02-03 22:04:27 +00:00
Dale Johannesen
45009f127b DebugLoc propgation 
llvm-svn: 63664
 2009-02-03 21:48:12 +00:00
Bill Wendling
3543edc608 More whitespace fixin'. 
llvm-svn: 63663
 2009-02-03 21:38:21 +00:00
Bill Wendling
716a4f7bfe Whitespace and comment changes. No functionality change. 
llvm-svn: 63660
 2009-02-03 21:17:20 +00:00
Chris Lattner
4d41e7d461 teach "convert from scalar" to handle loads of fca's. 
llvm-svn: 63659
 2009-02-03 21:08:45 +00:00
Chris Lattner
fc79cef792 refactor the interface to ConvertUsesOfLoadToScalar, 
renaming it to ConvertScalar_ExtractValue

llvm-svn: 63658
 2009-02-03 21:01:03 +00:00
Dale Johannesen
358418bb3d DebugLoc propagation. done with file. 
llvm-svn: 63656
 2009-02-03 20:21:25 +00:00
Devang Patel
8c076d8328 Remove dead code. 
llvm-svn: 63653
 2009-02-03 19:46:28 +00:00
Chris Lattner
e638ec187b convert ConvertUsesOfLoadToScalar to use IRBuilder, 
no functionality change.

llvm-svn: 63652
 2009-02-03 19:45:44 +00:00
Chris Lattner
db7a4ea569 switch ConvertScalar_InsertValue to use an IRBuilder, no 
functionality change.

llvm-svn: 63651
 2009-02-03 19:41:50 +00:00
Dale Johannesen
6c8c315519 DebugLoc propagation. 2/3 through file. 
llvm-svn: 63650
 2009-02-03 19:33:06 +00:00
Chris Lattner
eb3d568867 make scalar conversion handle stores of first class 
aggregate values.  loads are not yet handled (coming
soon to an sroa near you).

llvm-svn: 63649
 2009-02-03 19:30:11 +00:00
Dan Gohman
d6f2af1f80 Change the post-RA scheduler to iterate through the 
basic-block segments bottom-up instead of top down. This
is the first step in a general restructuring of the way
register liveness is tracked in the post-RA scheduler.

llvm-svn: 63643
 2009-02-03 18:57:45 +00:00
Dan Gohman
7d19e6cd6d Tevert part of the x86 subtarget logic changes: when -march=x86-64 
is given, override the subtarget settings and enable 64-bit support.
This restores the earlier behavior, and fixes regressions on
Non-64-bit-capable x86-32 hosts.

This isn't necessarily the best approach, but the most obvious
alternative is to require -mcpu=x86-64 or -mattr=+64bit to be used
with -march=x86-64 when the host doesn't have 64-bit support. This
makes things little more consistent, but it's less convenient, and
it has the practical drawback of requiring lots of test changes, so
I opted for the above approach for now.

llvm-svn: 63642
 2009-02-03 18:53:21 +00:00
Devang Patel
952d8276d1 First initialize DAG otherwise dwarf writer is used uninitialized. 
Duncan spotted this. Thanks!

llvm-svn: 63641
 2009-02-03 18:46:32 +00:00
Chris Lattner
5f3116636b Make SROA produce a vector only when the alloca is actually 
accessed at least once as a vector.  This prevents it from
compiling the example in not-a-vector into:

define double @test(double %A, double %B) {
	%tmp4 = insertelement <7 x double> undef, double %A, i32 0
	%tmp = insertelement <7 x double> %tmp4, double %B, i32 4
	%tmp2 = extractelement <7 x double> %tmp, i32 4
	ret double %tmp2
}

instead, producing the integer code.  Producing vectors when they
aren't otherwise in the program is dangerous because a lot of other
code treats them carefully and doesn't want to break them down.
OTOH, many things want to break down tasty i448's.

llvm-svn: 63638
 2009-02-03 18:15:05 +00:00
Chris Lattner
028861e55b this produces an undefined result, just check that the alloca is gone 
and that sroa doesn't crash.

llvm-svn: 63637
 2009-02-03 18:13:00 +00:00
Duncan Sands
87db26ad2c Fix PR3411. When replacing values, nodes are analyzed 
in any old order.  Since analyzing a node analyzes its
operands also, this can mean that when we pop a node
off the list of nodes to be analyzed, it may already
have been analyzed.

llvm-svn: 63632
 2009-02-03 10:23:33 +00:00
Evan Cheng
b3da5fb3a4 APInt'fy SimplifyDemandedVectorElts so it can analyze vectors with more than 64 elements. 
llvm-svn: 63631
 2009-02-03 10:05:09 +00:00
Chris Lattner
2f95b79fee add a method to BumpPtrAllocator that allows allocating elements 
with a specified alignment.

llvm-svn: 63629
 2009-02-03 07:39:50 +00:00
Nick Lewycky
23adb71f2a Add LLVM plugin for gold. 
llvm-svn: 63623
 2009-02-03 07:13:24 +00:00
Nick Lewycky
0569777e8b Regenerate configure. 
llvm-svn: 63622
 2009-02-03 07:10:30 +00:00
Nick Lewycky
1a641d2761 Add the ability to pass the path to binutils source to configure. This is 
needed to build the LLVM gold plugin.

llvm-svn: 63621
 2009-02-03 07:10:08 +00:00
Chris Lattner
447b5517bc add another case of undefined behavior without crashing, PR3466. 
llvm-svn: 63620
 2009-02-03 07:08:57 +00:00
Nick Lewycky
a676cf98e3 Revert r63600. It didn't fix the bug, it just moved it a bit. 
llvm-svn: 63618
 2009-02-03 06:30:37 +00:00
Owen Anderson
a6e31d57d3 Teach AliasAnalysis that a bunch of the atomic intrinsics only dereference their arguments. 
llvm-svn: 63616
 2009-02-03 06:27:22 +00:00
Nick Lewycky
cd8353b6fe Update the callgraph when replacing InvokeInst with CallInst when inlining. 
llvm-svn: 63600
 2009-02-03 04:34:40 +00:00
Bill Wendling
e496361cf5 Explicitly pass in debug location information to BuildMI. 
llvm-svn: 63599
 2009-02-03 02:29:34 +00:00
Bill Wendling
14bc9010d5 Pass in something sensible for the debug location information when creating the 
initial PHI nodes of the machine function.

llvm-svn: 63598
 2009-02-03 02:20:52 +00:00