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Author SHA1 Message Date
Chris Lattner
bc9a28dd54 constant fold loads from memcpy's from global constants. This is important 
because clang lowers nontrivial automatic struct/array inits to memcpy from
a global array.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90698 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 05:29:56 +00:00
Chris Lattner
cb9cbc4949 add support for forwarding mem intrinsic values to non-local loads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90697 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 04:54:31 +00:00
Chris Lattner
0fce29b9d1 gvn is optimizing this better now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90696 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 04:16:05 +00:00
Chris Lattner
faf815b938 Handle forwarding local memsets to loads. For example, we optimize this: 
short x(short *A) {
  memset(A, 1, sizeof(*A)*100);
  return A[42];
}

to 'return 257' instead of doing the load.  



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90695 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 01:57:02 +00:00
Chris Lattner
90ec9680a9 Add helper methods for forming shift operations with a constant 
shift amount.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90694 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 01:56:22 +00:00
Chris Lattner
f616ee2895 merge two tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90691 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 01:47:24 +00:00
Oscar Fuentes
c595e6ca0a CheckAtomic.cmake: Put all C++ code inside CHECK_CXX_SOURCE_COMPILES. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90685 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 00:06:33 +00:00
Oscar Fuentes
87e98075cc Fix for atomic intrinsics detection when using MSVC. 
Patch by Michael Beck!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90683 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 23:19:33 +00:00
Dan Gohman
87bad707ed Remove old DBG_LABEL code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90669 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 17:56:26 +00:00
Dan Gohman
714efc63d4 Remove the unused DisableLegalizeTypes option and related code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90668 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 17:51:33 +00:00
Bill Wendling
740266269b Calling InvalidateEntry during the refinement was breaking the bootstrap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90656 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 07:59:04 +00:00
Bill Wendling
32bc2362a1 Final cleanups: 
- Privatize a typedef.
- Call the InvalidateEntry when refining a type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90655 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 07:46:49 +00:00
Bill Wendling
dc492e0370 Temporarily revert r90502. It was causing the llvm-gcc bootstrap on PPC to fail. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90653 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 07:30:23 +00:00
Nick Lewycky
750e0e0ad0 Document that memory use intrinsics may also return Def results. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90651 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 06:37:52 +00:00
Nick Lewycky
93d3311d1f Fix indentation in switch statement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90650 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 06:37:24 +00:00
Nick Lewycky
83e8ec73e1 Generalize this optimization to work on equality comparisons between any two 
integers that are constant except for a single bit (the same n-th bit in each).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90646 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 05:00:00 +00:00
Eric Christopher
6c7e8a02d8 More updates to objectsize intrinsic docs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90644 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 02:46:03 +00:00
Dan Gohman
b3b9821cde Don't print a space before the : between the file name and line number. 
And separate the directory and file name with a '/'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90641 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 02:00:34 +00:00
Bill Wendling
688da28687 Inline methods which are called only once. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90640 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 01:46:01 +00:00
Bill Wendling
5681689795 Refactor some code. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90639 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 01:43:33 +00:00
Dan Gohman
eecb9919a4 Print newlines after printing labels for debug info, so that the output 
isn't cluttered with things like "Llabel47:Llabel48:  movq  (%rsi), %xmm3"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90638 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 01:42:34 +00:00
Dan Gohman
381ca5572e Don't blindly set the debug location for PHI node copies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90637 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 01:29:04 +00:00
Dan Gohman
6e3ff37547 Make TargetSelectInstruction protected and called from FastISel.cpp 
instead of SelectionDAGISel.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90636 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 01:27:58 +00:00
Dan Gohman
864e2efce2 Remove the target hook TargetInstrInfo::BlockHasNoFallThrough in favor of 
MachineBasicBlock::canFallThrough(), which is target-independent and more
thorough.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90634 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:44:40 +00:00
Dan Gohman
735985fbbe Simplify this code: don't call AnalyzeBranch before doing simpler checks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90633 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:32:59 +00:00
Dan Gohman
07f111e7b7 The debug information for an LLVM Instruction applies to that Instruction 
and that Instruction only. Implement this by setting the "current debug position"
back to Unknown after processing each instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90632 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:27:08 +00:00
Dan Gohman
3b9bc04eda Fix this code to use DIScope instead of DICompileUnit, as in r90181. 
Don't print "SrcLine"; just print the filename and line number, which
is obvious enough and more informative.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90631 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:23:29 +00:00
Dan Gohman
4b808b014b Don't print the debug directory; it's often long and uninteresting. Omit 
the column number if it is not known. Handle the case of a missing filename
better.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90630 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:20:51 +00:00
Dan Gohman
7004b9cf33 Minor code simplification. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90628 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:05:43 +00:00
David Greene
63be493b52 Remove an unneeded include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90627 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:03:24 +00:00
Dan Gohman
8a3f644b20 Remove now-redundant llvm-as invocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90626 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 00:02:37 +00:00
David Greene
adbc23cae1 Remove an unneeded include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90625 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 23:55:07 +00:00
Bill Wendling
7907ddb6d8 Add testcase for PR4262. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90623 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 23:29:57 +00:00
Dan Gohman
fcafe44f56 Print a space between the comment character and the text. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90621 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 23:19:55 +00:00
Bill Wendling
e98be31e7f Temporarily revert r72620 because r72619 was reverted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90619 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 23:16:56 +00:00
Devang Patel
d55224c25e In TAG_subrange_type, uppder bound is zero indexed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90617 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 23:10:24 +00:00
David Greene
03c8406fc1 Fix a bad merge. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90616 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 23:08:02 +00:00
David Greene
5e33632559 Update the TargetInstrInfo interfaces so hasLoad/StoreFrom/ToStackSlot 
can return a MachineMemOperand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90615 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 23:00:50 +00:00
Bob Wilson
ea7bfc5aa0 Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90613 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 22:46:47 +00:00
David Greene
f7ea2a534b Use new interfaces to print spill size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90611 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 22:46:04 +00:00
David Greene
29dbf50b18 Have hasLoad/StoreFrom/ToStackSlot return the relevant MachineMemOperand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90608 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 22:38:46 +00:00
Bob Wilson
39fdd6947c Fix up some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90603 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 21:57:37 +00:00
Bob Wilson
d614a1f0a8 Fix 80-column violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90601 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 21:51:35 +00:00
Daniel Dunbar
d90ade54cd OptParser: Emit HelpText field for option groups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90599 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 21:41:24 +00:00
Bill Wendling
1500c4f49a Some code cleanup. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90588 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 21:03:02 +00:00
Victor Hernandez
ff7707e983 Avoid creating a metadata slot for all metadata that contains an instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90581 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 20:07:10 +00:00
Evan Cheng
11572babb1 Handle recursive PHI's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90575 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 19:09:10 +00:00
Victor Hernandez
954c80e99d Fix crasher when N->getElement(n) is NULL 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90572 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 18:29:23 +00:00
Evan Cheng
79fc6f44b6 Add a pre-regalloc tail duplication pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90567 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 09:42:45 +00:00
Evan Cheng
9d0f8bba17 Don't try to be cute with undef optimization here. Let ProcessImplicitDefs handle it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90566 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 09:23:37 +00:00