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Author SHA1 Message Date
Anton Korobeynikov
eee906f4f0 Dynamic stack realignment use of sp register as source/dest register 
in "bic sp, sp, #15" leads to unpredicatble behaviour in Thumb2 mode.
Emit the following code instead:
mov r4, sp
bic r4, r4, #15
mov sp, r4

llvm-svn: 90724
 2009-12-06 22:39:50 +00:00
Chris Lattner
7066a138ff fix PR5698 
llvm-svn: 90708
 2009-12-06 17:17:23 +00:00
Chris Lattner
c9a91632e1 remove extraneous comma clang warns about 
llvm-svn: 90707
 2009-12-06 16:58:41 +00:00
Chris Lattner
ea3007ddb8 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.

llvm-svn: 90698
 2009-12-06 05:29:56 +00:00
Chris Lattner
8885e71303 add support for forwarding mem intrinsic values to non-local loads. 
llvm-svn: 90697
 2009-12-06 04:54:31 +00:00
Chris Lattner
6d180b4a2c gvn is optimizing this better now. 
llvm-svn: 90696
 2009-12-06 04:16:05 +00:00
Chris Lattner
5eba6ee969 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.  

llvm-svn: 90695
 2009-12-06 01:57:02 +00:00
Chris Lattner
aee232cb03 Add helper methods for forming shift operations with a constant 
shift amount.

llvm-svn: 90694
 2009-12-06 01:56:22 +00:00
Chris Lattner
f9ff4c0fc4 merge two tests. 
llvm-svn: 90691
 2009-12-06 01:47:24 +00:00
Oscar Fuentes
e1f5d048d7 CheckAtomic.cmake: Put all C++ code inside CHECK_CXX_SOURCE_COMPILES. 
llvm-svn: 90685
 2009-12-06 00:06:33 +00:00
Oscar Fuentes
ec99766e2e Fix for atomic intrinsics detection when using MSVC. 
Patch by Michael Beck!

llvm-svn: 90683
 2009-12-05 23:19:33 +00:00
Dan Gohman
e6ce676cb2 Remove old DBG_LABEL code. 
llvm-svn: 90669
 2009-12-05 17:56:26 +00:00
Dan Gohman
d2797bf9ae Remove the unused DisableLegalizeTypes option and related code. 
llvm-svn: 90668
 2009-12-05 17:51:33 +00:00
Bill Wendling
60e15336be Calling InvalidateEntry during the refinement was breaking the bootstrap. 
llvm-svn: 90656
 2009-12-05 07:59:04 +00:00
Bill Wendling
a24fa4e67b Final cleanups: 
- Privatize a typedef.
- Call the InvalidateEntry when refining a type.

llvm-svn: 90655
 2009-12-05 07:46:49 +00:00
Bill Wendling
887646a585 Temporarily revert r90502. It was causing the llvm-gcc bootstrap on PPC to fail. 
llvm-svn: 90653
 2009-12-05 07:30:23 +00:00
Nick Lewycky
6f5e732b75 Document that memory use intrinsics may also return Def results. 
llvm-svn: 90651
 2009-12-05 06:37:52 +00:00
Nick Lewycky
056fe5f97d Fix indentation in switch statement. 
llvm-svn: 90650
 2009-12-05 06:37:24 +00:00
Nick Lewycky
10693e2bb0 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).

llvm-svn: 90646
 2009-12-05 05:00:00 +00:00
Eric Christopher
2a9b28c14b More updates to objectsize intrinsic docs. 
llvm-svn: 90644
 2009-12-05 02:46:03 +00:00
Dan Gohman
bdf1b76e0f Don't print a space before the : between the file name and line number. 
And separate the directory and file name with a '/'.

llvm-svn: 90641
 2009-12-05 02:00:34 +00:00
Bill Wendling
fb8e8f8bd7 Inline methods which are called only once. 
llvm-svn: 90640
 2009-12-05 01:46:01 +00:00
Bill Wendling
7871b8a922 Refactor some code. No functionality change. 
llvm-svn: 90639
 2009-12-05 01:43:33 +00:00
Dan Gohman
b2fda9f9f4 Print newlines after printing labels for debug info, so that the output 
isn't cluttered with things like "Llabel47:Llabel48:  movq  (%rsi), %xmm3"

llvm-svn: 90638
 2009-12-05 01:42:34 +00:00
Dan Gohman
b352b42391 Don't blindly set the debug location for PHI node copies. 
llvm-svn: 90637
 2009-12-05 01:29:04 +00:00
Dan Gohman
c9454cd34f Make TargetSelectInstruction protected and called from FastISel.cpp 
instead of SelectionDAGISel.cpp.

llvm-svn: 90636
 2009-12-05 01:27:58 +00:00
Dan Gohman
f9654e9258 Remove the target hook TargetInstrInfo::BlockHasNoFallThrough in favor of 
MachineBasicBlock::canFallThrough(), which is target-independent and more
thorough.

llvm-svn: 90634
 2009-12-05 00:44:40 +00:00
Dan Gohman
fc11083645 Simplify this code: don't call AnalyzeBranch before doing simpler checks. 
llvm-svn: 90633
 2009-12-05 00:32:59 +00:00
Dan Gohman
feeb2f07a1 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.

llvm-svn: 90632
 2009-12-05 00:27:08 +00:00
Dan Gohman
cf29c2243b 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.

llvm-svn: 90631
 2009-12-05 00:23:29 +00:00
Dan Gohman
309e2283ab 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.

llvm-svn: 90630
 2009-12-05 00:20:51 +00:00
Dan Gohman
247374da74 Minor code simplification. 
llvm-svn: 90628
 2009-12-05 00:05:43 +00:00
David Greene
4ab7e5fa6a Remove an unneeded include. 
llvm-svn: 90627
 2009-12-05 00:03:24 +00:00
Dan Gohman
e23727694c Remove now-redundant llvm-as invocations. 
llvm-svn: 90626
 2009-12-05 00:02:37 +00:00
David Greene
755852d0c3 Remove an unneeded include. 
llvm-svn: 90625
 2009-12-04 23:55:07 +00:00
Bill Wendling
87980517df Add testcase for PR4262. 
llvm-svn: 90623
 2009-12-04 23:29:57 +00:00
Dan Gohman
e6b70ddf0c Print a space between the comment character and the text. 
llvm-svn: 90621
 2009-12-04 23:19:55 +00:00
Bill Wendling
7993d94840 Temporarily revert r72620 because r72619 was reverted. 
llvm-svn: 90619
 2009-12-04 23:16:56 +00:00
Devang Patel
10e8f51059 In TAG_subrange_type, uppder bound is zero indexed. 
llvm-svn: 90617
 2009-12-04 23:10:24 +00:00
David Greene
7ff6aa2e62 Fix a bad merge. 
llvm-svn: 90616
 2009-12-04 23:08:02 +00:00
David Greene
4c625161b2 Update the TargetInstrInfo interfaces so hasLoad/StoreFrom/ToStackSlot 
can return a MachineMemOperand.

llvm-svn: 90615
 2009-12-04 23:00:50 +00:00
Bob Wilson
b8002101b4 Fix indentation. 
llvm-svn: 90613
 2009-12-04 22:46:47 +00:00
David Greene
d75891618c Use new interfaces to print spill size. 
llvm-svn: 90611
 2009-12-04 22:46:04 +00:00
David Greene
cb0611ec3b Have hasLoad/StoreFrom/ToStackSlot return the relevant MachineMemOperand. 
llvm-svn: 90608
 2009-12-04 22:38:46 +00:00
Bob Wilson
8c1617ed73 Fix up some comments. 
llvm-svn: 90603
 2009-12-04 21:57:37 +00:00
Bob Wilson
514e0d319a Fix 80-column violations. 
llvm-svn: 90601
 2009-12-04 21:51:35 +00:00
Daniel Dunbar
91a54350f8 OptParser: Emit HelpText field for option groups. 
llvm-svn: 90599
 2009-12-04 21:41:24 +00:00
Bill Wendling
168e8cb33b Some code cleanup. No functionality change. 
llvm-svn: 90588
 2009-12-04 21:03:02 +00:00
Victor Hernandez
e865bc76ad Avoid creating a metadata slot for all metadata that contains an instruction 
llvm-svn: 90581
 2009-12-04 20:07:10 +00:00
Evan Cheng
d587159de8 Handle recursive PHI's. 
llvm-svn: 90575
 2009-12-04 19:09:10 +00:00