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Author SHA1 Message Date
Evan Cheng
9d15abe838 Re-apply 48911. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48977 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-31 07:54:19 +00:00
Evan Cheng
24d2f8a212 The support for remat of instructions with a register operand is hackish, to say the least. Since the register operand guaranteed to be PIC base and that it is already live at all uses, we are making sure it will not be spilled after its uses are rematerialized for both performance and correctness reasons. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48976 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-31 07:53:30 +00:00
Erick Tryzelaar
87a3b68bf7 Quote the ocaml executables 
realazthat in #llvm was having problems building llvm
because configure was finding an ocaml executable in
a directory with a space in it's name. This patch
puts quotes around the name so that llvm can build for
him.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48974 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-31 03:46:43 +00:00
Owen Anderson
bc91bd34f1 Fix a major bug in the DFS calculation. Thanks for Christopher Lamb for pointing this out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48973 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-31 01:39:20 +00:00
Nate Begeman
83ad90a779 Don't eliminate bitcast instructions that change the type of a pointer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48971 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-31 00:22:16 +00:00
Erick Tryzelaar
4f678c3692 Tweak build system to allow for installing the tutorial and uninstalling the docs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48968 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-30 20:32:18 +00:00
Duncan Sands
66a1a05c86 Fix comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48967 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-30 19:38:55 +00:00
Erick Tryzelaar
d564686dff Fix some documentation for the tutorial. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48966 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-30 19:14:31 +00:00
Nick Lewycky
8dd6505868 Moved from PR1570. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48965 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-30 19:07:11 +00:00
Chris Lattner
8c2ec51a7f stop building llvmc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48964 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-30 18:58:05 +00:00
Chris Lattner
d27c991ceb Fix "Control reaches the end of non-void function" warnings, 
patch by David Chisnall.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48963 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-30 18:22:13 +00:00
Chris Lattner
f19f58a936 minor code cleanups, allow constant folding sinf/cosf. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48961 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-30 18:02:00 +00:00
Chris Lattner
74ba1711b7 fix typo, PR2181 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48954 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-30 16:59:21 +00:00
Erick Tryzelaar
37c076bf91 Add chapter 3 and 4 of the ocaml/kaleidoscope tutorial. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48949 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-30 09:57:12 +00:00
Evan Cheng
fd5da6c991 Cosmetic changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48947 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-29 18:34:22 +00:00
Anton Korobeynikov
5f2e499520 Honour another bunch of parameter attributes in llvm2cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48942 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-29 11:25:49 +00:00
Anton Korobeynikov
e818717e0c Honour ByVal parameter attribute in llvm2cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48941 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-29 11:15:01 +00:00
Chris Lattner
97ae12a988 change iterator invalidation avoidance to just move the iterator backward 
when something changes, instead of moving forward.  This allows us to 
simplify memset lowering, inserting the memset at the end of the range of 
stuff we're touching instead of at the start.

This, in turn, allows us to make use of the addressing instructions already
used in the function instead of inserting our own.  For example, we now
codegen:

	%tmp41 = getelementptr [8 x i8]* %ref_idx, i32 0, i32 0		; <i8*> [#uses=2]
	call void @llvm.memset.i64( i8* %tmp41, i8 -1, i64 8, i32 1 )

instead of:

	%tmp20 = getelementptr [8 x i8]* %ref_idx, i32 0, i32 7		; <i8*> [#uses=1]
	%ptroffset = getelementptr i8* %tmp20, i64 -7		; <i8*> [#uses=1]
	call void @llvm.memset.i64( i8* %ptroffset, i8 -1, i64 8, i32 1 )



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48940 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-29 05:15:47 +00:00
Chris Lattner
d22fe2b51f make the common case of a single store (which clearly shouldn't be turned 
into a memset!) faster by avoiding an allocation of an std::list node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48939 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-29 04:52:12 +00:00
Chris Lattner
f83e13ae0a add a testcase for forming memset from noncontiguous stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48938 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-29 04:51:35 +00:00
Chris Lattner
9f8a6a7498 give form-memset a significantly more sane heuristic, enable it by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48937 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-29 04:36:18 +00:00
Owen Anderson
c7c00361ce Remove some unneeded code for LiveInterval joining, and fix a bug in the Phi elimination algorithm where we were accidentally reasoning about 
the source rather than the destination.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48936 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-29 01:58:47 +00:00
Evan Cheng
9180c8e3cf Cosmetic change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48935 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-29 01:04:05 +00:00
Dan Gohman
d4a2ad35e3 Fix a tokenfactor node to use the load chain rather than the 
load value. This fixes PR2177.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48932 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-28 23:45:16 +00:00
Evan Cheng
4db4f1ce7e Backing out 48911 for now. It's breaking stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48922 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-28 17:49:06 +00:00
Chris Lattner
2a88a5c92f ifdef out a dead function. Should this be removed? 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48916 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-28 15:36:27 +00:00
Duncan Sands
e10efce225 Rename getAnyLoad to getLoad is suggested by Evan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48914 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-28 09:45:24 +00:00
Evan Cheng
ddf0a06580 New entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48912 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-28 07:07:06 +00:00
Evan Cheng
86f57b0983 Load from stub is already re-materializable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48911 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-28 06:49:25 +00:00
Nick Lewycky
0c78ac11dd Update example to new syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48910 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-28 06:46:51 +00:00
Chris Lattner
7f0965e7da make memset inference significantly more powerful: it can now handle 
memsets that initialize "structs of arrays" and other store sequences
that are not sequential.  This is still only enabled if you pass 
-form-memset-from-stores.  The flag is not heavily tested and I haven't
analyzed the perf regressions when -form-memset-from-stores is passed
either, but this causes no make check regressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48909 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-28 06:45:13 +00:00
Evan Cheng
02bee85a70 New entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48908 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-28 06:34:23 +00:00
Bill Wendling
1a76f00dde Simplify the conversion from "0x" numbers to a single digit number. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48907 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-28 06:22:23 +00:00
Duncan Sands
14ea39cf3c Implement LegalizeTypes support for softfloat LOAD. 
In order to handle indexed nodes I had to introduce
a new constructor, and since I was there I factorized
the code in the various load constructors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48894 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 20:23:40 +00:00
Dan Gohman
86e1ebf9bb Avoid creating chain dependencies from CopyToReg nodes to load and store 
nodes. This doesn't currently have much impact the generated code, but it
does produce simpler-looking SelectionDAGs, and consequently
simpler-looking ScheduleDAGs, because there are fewer spurious
dependencies.

In particular, CopyValueToVirtualRegister now uses the entry node as the
input chain dependency for new CopyToReg nodes instead of calling getRoot
and depending on the most recent memory reference.

Also, rename UnorderedChains to PendingExports and pull it up from being
a local variable in SelectionDAGISel::BuildSelectionDAG to being a
member variable of SelectionDAGISel, so that it doesn't have to be
passed around to all the places that need it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48893 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 19:56:19 +00:00
Devang Patel
4a3c0ac798 PHI->removeIncomingValue may remove PHInode. 
Increment iterator in advance.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48890 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 17:32:46 +00:00
Devang Patel
156b2df00d add another testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48881 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 17:13:55 +00:00
Mikhail Glushenkov
3ee8402645 Fix build breakage on Windows with GCC 4.3. References bug #2176. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48874 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 09:53:47 +00:00
Roman Levenstein
d7d3ea00c0 Fix spelling. Thanks, Duncan! :-) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48873 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 09:44:37 +00:00
Roman Levenstein
95d4184e72 Speed-up the SumOfUnscheduledPredsOfSuccs by introducing a new function 
called LimitedSumOfUnscheduledPredsOfSuccs. It terminates the computation
after a given treshold is reached. This new function is always faster, but
brings real wins only on bigger test-cases.

The old function SumOfUnscheduledPredsOfSuccs is left in-place for now and therefore a warning about an unused static function is produced.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48872 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 09:14:57 +00:00
Erick Tryzelaar
9ba8a5736a Adding the first two chapters of the ocaml/kaleidoscope tutorial. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48871 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 08:18:07 +00:00
Chris Lattner
2896652be2 when a node is removed from an ilist, set its next/prev pointers to 
null.  This means that uses of invalidated iterators will explode violently
with:
ilist:143: failed assertion `NodePtr && "++'d off the end of an ilist!"'

instead of happening to work "most of the time".



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48859 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 02:43:03 +00:00
Devang Patel
53b87db8d3 New test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48858 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 01:51:31 +00:00
Evan Cheng
e3d8dbf479 Code clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48856 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 01:45:11 +00:00
Evan Cheng
e771ebd7a3 Allow certain lea instructions to be rematerialized. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48855 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 01:41:09 +00:00
Evan Cheng
d1e4b3515c Remove an unused command line option. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48854 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 01:30:24 +00:00
Evan Cheng
7a963fa8ee Fix a memory bug: increment an iterator of a deleted machine instr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48853 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 01:27:25 +00:00
Erick Tryzelaar
7c1483bc6f Expose ExecutionEngine::getTargetData() to c and ocaml bindings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48851 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 00:27:14 +00:00
Chuck Rose III
5b0c85588a Updating win32 VStudio project files with new file references and removing dead references. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48849 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-27 00:02:53 +00:00
Dale Johannesen
d9ffd4cb92 Fix a bug in Darwin EH: FDE->CIE pointer must 
be relocatable.  Describe why .set is needed better.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48848 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-26 23:31:39 +00:00