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Author SHA1 Message Date
Jim Grosbach
056ab107ff ARMPseudoInst instructions should default to being considered a single 4-byte 
instruction. Any that may be expanded otherwise by MC lowering should
override this value. rdar://8683274

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119713 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 18:01:40 +00:00
Dan Gohman
4229c62dcf Fix typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119712 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 17:44:17 +00:00
Dan Gohman
a6d60ddbbb Document the units for the Size field. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119711 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 17:39:01 +00:00
Dan Gohman
078d967e0a Bounds-check APInt's operator[]. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119708 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 17:14:56 +00:00
Dan Gohman
409d64a764 ExpandPseudos doesn't have any dependencies, so it can use the 
simple form of INITIALIZE_PASS.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119707 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 17:14:05 +00:00
Dan Gohman
7feccd2af9 Strip trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119706 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 17:06:31 +00:00
Dan Gohman
88fc03c461 Use llvm_unreachable for "impossible" situations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119705 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 17:05:57 +00:00
Dan Gohman
ce56262211 Add support for PHI-translating sext, zext, and trunc instructions, 
enabling more PRE. PR8586.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119704 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 17:05:13 +00:00
Chris Lattner
d528be6636 slightly simplify code and substantially improve comment. Instead of 
saying "it would be bad", give an example of what is going on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119695 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 08:07:09 +00:00
Chris Lattner
5a7aeaa019 remove a pointless restriction from memcpyopt. It was 
refusing to optimize two memcpy's like this:

copy A <- B
copy C <- A

if it couldn't prove that noalias(B,C).  We can eliminate
the copy by producing a memmove instead of memcpy.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119694 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 08:00:57 +00:00
Chris Lattner
7cac8e1691 filecheckize, this is still not optimal, see PR8643 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119693 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 07:49:32 +00:00
Chris Lattner
12f7085027 remove another pointless noalias check: M is a memcpy, so the 
source and dest are known to not overlap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119692 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 07:39:57 +00:00
Chris Lattner
245b7f6ec2 use AA::isNoAlias instead of open coding it. Remove an extraneous noalias check: 
there is no need to check to see if the source and dest of a memcpy are noalias,
behavior is undefined if not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119691 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 07:38:43 +00:00
Chris Lattner
2e29ebd9e8 finish a thought. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119690 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 07:32:33 +00:00
Chris Lattner
43f8e43eb2 rearrange some code, splitting memcpy/memcpy optimization 
out of processMemCpy into its own function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 07:02:37 +00:00
Chris Lattner
6248065194 allow eliminating an alloca that is just copied from an constant global 
if it is passed as a byval argument.  The byval argument will just be a
read, so it is safe to read from the original global instead.  This allows
us to promote away the %agg.tmp alloca in PR8582


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119686 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 06:41:51 +00:00
Chris Lattner
a9be1df6d7 enhance the "alloca is just a memcpy from constant global" 
to ignore calls that obviously can't modify the alloca
because they are readonly/readnone.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119683 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 06:26:49 +00:00
Chris Lattner
2e61849f45 fix a small oversight in the "eliminate memcpy from constant global" 
optimization.  If the alloca that is "memcpy'd from constant" also has
a memcpy from *it*, ignore it: it is a load.  We now optimize the testcase to:

define void @test2() {
  %B = alloca %T
  %a = bitcast %T* @G to i8*
  %b = bitcast %T* %B to i8*
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %b, i8* %a, i64 124, i32 4, i1 false)
  call void @bar(i8* %b)
  ret void
}

previously we would generate:

define void @test() {
  %B = alloca %T
  %b = bitcast %T* %B to i8*
  %G.0 = getelementptr inbounds %T* @G, i32 0, i32 0
  %tmp3 = load i8* %G.0, align 4
  %G.1 = getelementptr inbounds %T* @G, i32 0, i32 1
  %G.15 = bitcast [123 x i8]* %G.1 to i8*
  %1 = bitcast [123 x i8]* %G.1 to i984*
  %srcval = load i984* %1, align 1
  %B.0 = getelementptr inbounds %T* %B, i32 0, i32 0
  store i8 %tmp3, i8* %B.0, align 4
  %B.1 = getelementptr inbounds %T* %B, i32 0, i32 1
  %B.12 = bitcast [123 x i8]* %B.1 to i8*
  %2 = bitcast [123 x i8]* %B.1 to i984*
  store i984 %srcval, i984* %2, align 1
  call void @bar(i8* %b)
  ret void
}



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119682 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 06:20:47 +00:00
Chris Lattner
d222e36b49 filecheckize 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119681 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 06:16:43 +00:00
Chris Lattner
c146c4d47a trivial QoI improvement. On this invalid input: 
sahf	movl	344(%rdi),%r14d
we used to produce:

t.s:2:1: error: unexpected token in argument list

^

we now produce:
t.s:1:11: error: unexpected token in argument list
sahf	movl	344(%rdi),%r14d
    	    	^

rdar://8581401


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119676 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 02:53:02 +00:00
Chris Lattner
85a0a06b18 patch from Frits van Bommel: 
The attached patch fixes IRBuilder and the NoFolder class so that when
NoFolder is used the instructions it generates are treated just like
the ones IRBuilder creates directly (insert into block, assign them a
name and debug info, as applicable).
It does this by
1) having NoFolder return Instruction*s instead of Value*s,
2) having IRBuilder call Insert(Value, Name) on values obtained from
the folder like it does on instructions it creates directly, and
3) adding an Insert(Constant*, const Twine& = "") overload which just
returns the constant so that the other folders shouldn't have any
extra overhead as long as inlining is enabled.

While I was there, I also added some missing (CreateFNeg and various
Create*Cast) methods to NoFolder.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119614 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 02:15:42 +00:00
Rafael Espindola
5c0556341e Change CodeGen to use .loc directives. This produces a lot more readable output 
and testing is easier.  A good example is the unknown-location.ll test that
now can just look for ".loc 1 0 0".  We also don't use a DW_LNE_set_address for
every address change anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119613 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 02:04:25 +00:00
Evan Cheng
5c71c7a137 Silence compiler warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119610 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 01:43:23 +00:00
Jim Grosbach
1251e1a8df Remove trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119608 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 01:39:50 +00:00
Jim Grosbach
99594eb1de ARM PseudoInst instructions don't need or use an assembler string. Get rid of 
the operand to the pattern.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119607 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 01:38:26 +00:00
Jim Grosbach
e541528e35 Revert 119600 to unbreak the build. Francois, please investigate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119606 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 01:38:07 +00:00
Dale Johannesen
b4ac2858da Do not throw away alignment when generating the DAG for 
memset; we may need it to decide between MOVAPS and MOVUPS
later.  Adjust a test that was looking for wrong code.
PR 3866 / 8675131.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119605 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 01:35:23 +00:00
Evan Cheng
1b4886dd00 Code clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119604 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 01:28:51 +00:00
Jim Grosbach
c6961f140a Add FIXME. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119603 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 01:20:48 +00:00
Jim Grosbach
53694265a9 Refactor the ARM PICADD and PICLDR* instructions to really be pseudos and not 
just pretend to be.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119602 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 01:15:56 +00:00
Owen Anderson
35141a9ba3 Try again at providing Thumb2 encodings for basic multiplication operators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119601 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 01:08:42 +00:00
Francois Pichet
f4efa8e785 Appease MSVC 2008: you can't use keyword this inside EXPECT_EQ(). 
This is because of bug 331418 on Microsoft Connect.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119600 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 00:59:50 +00:00
John Thompson
d3b809d476 Fixed to use input redirection for source - to eliminate .s output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119599 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 00:50:20 +00:00
Jim Grosbach
160f8f0e67 Refactor a few ARM load instructions to better parameterize things and re-use 
common encoding information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119598 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 00:46:58 +00:00
Owen Anderson
424216453f Revert r119593 while I figure out my testing disagrees with the buildbot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119597 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 00:42:51 +00:00
Dan Gohman
9c9fcfc719 Introduce memoization for ScalarEvolution dominates and properlyDominates 
queries, and SCEVExpander getRelevantLoop queries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119595 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 00:34:22 +00:00
Owen Anderson
18333616cd Provide correct Thumb2 encodings for basic multiplication operators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119593 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 00:19:10 +00:00
Oscar Fuentes
78786f9eb6 Updated library dependencies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119592 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 00:12:27 +00:00
John Thompson
7730318000 Bug 8621 fix - pointer cast stripped from inline asm constraint argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119590 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 23:58:47 +00:00
Wesley Peck
b977f04c5b Make MCJIT work with CMake. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119589 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 23:35:07 +00:00
Jim Grosbach
85eb54cf0c Clean up LEApcrel instuction(s) a bit. It's not really a Pseudo, so don't mark 
it as such. Add some encoding information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119588 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 23:33:14 +00:00
Dan Gohman
56a7568218 Factor out the code for purging a SCEV from all the various memoization maps. 
Some of these maps may merge in the future, but for now it's convenient to have
a utility function for them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119587 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 23:28:48 +00:00
Dan Gohman
714b5290b0 Merge the implementations of isLoopInvariant and hasComputableLoopEvolution, and 
memoize the results. This improves compile time in code which highly complex
expressions which get queried many times.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119584 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 23:21:44 +00:00
Wesley Peck
e7c682b543 Now that the MBlaze backend is in its own directory, split the test cases into multiple files for different types of instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119580 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 22:54:43 +00:00
Dan Gohman
4ce32db913 Make SCEV::getType() and SCEV::print non-virtual. Move SCEV::hasOperand 
to ScalarEvolution. Delete SCEV::~SCEV. SCEV is no longer virtual.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119578 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 22:27:42 +00:00
Owen Anderson
2f7aed39a3 Second attempt at correct encodings for Thumb2 bitfield instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119575 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 22:16:31 +00:00
Jim Grosbach
0129be281e Fix comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119573 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 21:57:51 +00:00
Dale Johannesen
8abe08d7f9 These tests are looking for library function names that 
appear to differ on Linux.  Try to make them pass on Linux.
Would be good for a Linux person to review this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119572 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 21:57:32 +00:00
Dan Gohman
dc0e8fb9f9 Move SCEV::dominates and properlyDominates to ScalarEvolution. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119570 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 21:41:58 +00:00
Bob Wilson
05646099a0 Change ARMGlobalMerge to keep BSS globals in separate pools. 
This completes the fixes for Radar 8673120.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119566 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 21:25:39 +00:00