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Author SHA1 Message Date
Owen Anderson
5d2f8072d4 Correctly handle replacement and removal of PHIs with one incoming register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54374 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 21:40:45 +00:00
Bill Wendling
021507be82 Revert r53282. This was causing a miscompile on Linux. Also, the transformation 
looks bogus. Please see PR2629 for details on why this is breaking things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54372 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 21:23:45 +00:00
Owen Anderson
71ac0be6bb Oops, we were already checking for dead phis. Handle this the proper way, then. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54371 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 21:18:51 +00:00
Owen Anderson
e7b8205e6e We don't need to update live intervals for dead PHIs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54369 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 20:51:26 +00:00
Chris Lattner
d3eda89f4c Expand acronyms, suggested by Walter Pawley 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54362 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 18:29:16 +00:00
Owen Anderson
3bc9c6f3e7 Remove the -disable-correct-folding option, which was ugly and is no longer needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54361 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 18:27:54 +00:00
Chris Lattner
ebec678055 Capitalize LLVM, suggested by Walt Pawley 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54360 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 18:21:08 +00:00
Owen Anderson
b6634e9e27 Update the remaining tests not to use -disable-correct-folding, and remove two 
that couldn't be updated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54359 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 18:19:14 +00:00
Owen Anderson
551ddf718c One more -disable-correct-folding case removed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54358 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 18:08:56 +00:00
Owen Anderson
2a1f07ea6a Remove another -disable-correct-folding use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54357 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 18:05:58 +00:00
Owen Anderson
d6db225800 Eliminate another use of -disable-correct-folding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54356 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 18:03:01 +00:00
Owen Anderson
287b7b7ed7 This check is unnecessary, and getting rid of it removes a use of -disable-correct-folding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54355 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 17:52:54 +00:00
Owen Anderson
3888aa0b7d Remove the need for -disable-correct-folding from this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54354 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 17:49:52 +00:00
Dan Gohman
c3be0fd8c3 Fix the AsmWriter to not print extra spaces after parameter attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54351 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 15:51:44 +00:00
Dan Gohman
8f613f30a7 Trim #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54350 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 15:32:23 +00:00
Dan Gohman
430b8a22e2 Fix several const-correctness issues, resolving some -Wcast-qual warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54349 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 14:45:15 +00:00
Dan Gohman
ec89a364b8 Correct an assertion string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54348 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 14:42:28 +00:00
Evan Cheng
4fa393aae1 Remove #if 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54347 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 07:20:57 +00:00
Evan Cheng
068b4ff553 Fix PR2568: Fix bug that cause redudant kill marker after its live interval has been extended due to coalescing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54346 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 07:10:38 +00:00
Owen Anderson
59c0d4fcde Remove unneeded iteration. Thanks to Dan for the feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54337 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 00:30:10 +00:00
Owen Anderson
6ac8df7f61 This option doesn't need to be a target option. It can be in SDISel instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54336 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-05 00:27:28 +00:00
Owen Anderson
2b85dc3544 Update these tests to work by disabling the new correct CFG generation. This flag should ONLY be used to for tests like these. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54334 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 23:55:29 +00:00
Owen Anderson
bd3ba461eb - Fix SelectionDAG to generate correct CFGs. 
- Add a basic machine-level dead block eliminator.

These two have to go together, since many other parts of the code generator are unable to handle the unreachable blocks otherwise created.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54333 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 23:54:43 +00:00
Eli Friedman
b42a626122 PR2621: Improvements to the SCEV AddRec binomial expansion. This 
version uses a new algorithm for evaluating the binomial coefficients 
which is significantly more efficient for AddRecs of more than 2 terms 
(see the comments in the code for details on how the algorithm works).  
It also fixes some bugs: it removes the arbitrary length restriction for 
AddRecs, it fixes the silent generation of incorrect code for AddRecs 
which require a wide calculation width, and it fixes an issue where we 
were incorrectly truncating the iteration count too far when evaluating 
an AddRec expression narrower than the induction variable.

There are still a few related issues I know of: I think there's 
still an issue with the SCEVExpander expansion of AddRec in terms of
the width of the induction variable used.  The hack to avoid generating 
too-wide integers shouldn't be necessary; instead, the callers should be 
considering the cost of the expansion before expanding it (in addition 
to not expanding too-wide integers, we might not want to expand 
expressions that are really expensive, especially when optimizing for 
size; calculating an length-17 32-bit AddRec currently generates about 250 
instructions of straight-line code on X86).  Also, for long 32-bit 
AddRecs on X86, CodeGen really sucks at scheduling the code.  I'm planning on 
filing follow-up PRs for these issues.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54332 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 23:49:06 +00:00
Dan Gohman
6f498b0a8e Fix SDISel lowering of PHI nodes to use ComputeValueVTs. 
This allows it to work correctly on aggregate values.
This fixes PR2623.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54331 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 23:42:46 +00:00
Dan Gohman
1f565bcff6 Fix SDISel lowering of zeroinitializer and undef to use ComputeValueVTs. 
This allows it to work correctly on nested aggregate values.
This fixes PR2625.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54330 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 23:30:41 +00:00
Dan Gohman
d0859943ac Add an assert to catch invalid VECTOR_SHUFFLE mask indices. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54329 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 23:09:15 +00:00
Bruno Cardoso Lopes
f7f3b50cd8 Mips ISelLowering cleanup : Removed old LowerCALL and FORMAL_ARGS helpers, they 
aren't used anyway, they also used to broke compiling when fastcc was specified for a
function, but not anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54316 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 07:12:52 +00:00
Bruno Cardoso Lopes
ea9d4d6ab0 Handle i32->f32 bitconvert results. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54315 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-04 06:44:31 +00:00
Andrew Lenharth
08ca62bb6f Add atomic sub for other sizes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54314 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-03 20:17:34 +00:00
Chris Lattner
e594fd473e Emit saveri with the correct operand order, patch by Richard Pennington! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54313 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-03 18:16:14 +00:00
Bruno Cardoso Lopes
64cf160fef Fix PR2615 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54312 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-03 15:37:43 +00:00
Bruno Cardoso Lopes
91ef849e6c Improved asm inline for hi,lo results 
Added hi,lo registers to be used,def implicitly. This provides better handle of
instructions which use hi/lo.
Fixes a small BranchAnalysis bug


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54274 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-02 19:42:36 +00:00
Bruno Cardoso Lopes
1906c5a63b Apply the same pattern used in 'and' lowering for 'or' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54273 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-02 19:37:33 +00:00
Duncan Sands
58921feaa9 Fix comment typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54266 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-01 12:23:49 +00:00
Bill Wendling
eb4ab60bed Removed unused parameters. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54262 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-01 05:50:13 +00:00
Dale Johannesen
3b4c45203e Make sse2 explicit, for non-x86 hosts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54251 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-31 20:16:33 +00:00
Bruno Cardoso Lopes
7bd7182e21 Expand fcopysign 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54250 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-31 18:50:54 +00:00
Bruno Cardoso Lopes
772837778b Handle more SELECT corner cases considering legalize types, probabily wont work with 
the default legalizer.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54249 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-31 18:31:28 +00:00
Dale Johannesen
7232464bda Add a flag to disable jump table generation (all 
switches use the binary search algorithm) for
environments that don't support it.  PPC64 JIT
is such an environment; turn the flag on for that.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54248 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-31 18:13:12 +00:00
Dan Gohman
75dcf08243 Improve dagcombining for sext-loads and sext-in-reg nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54239 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-31 00:50:31 +00:00
Bruno Cardoso Lopes
7030ae7728 Added pattern for floating point zero immediate (avoiding a constant pool 
access).
Added pattern to match bitconvert node.
Fixed MTC1 asm string bug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54229 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 19:00:31 +00:00
Dan Gohman
0b12aef490 Move SelectionDAG::viewGraph() out of line; as an inline function 
it isn't always visible to gdb.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54228 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 18:48:53 +00:00
Dan Gohman
90d33ee746 Don't look for leaf values to store when lowering stores of 
empty structs. This fixes PR2612.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54226 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 18:36:51 +00:00
Owen Anderson
d723f722b2 Use existing LiveInterval methods to simplify live interval merging. Thanks to Evan for pointing these out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54225 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 18:27:35 +00:00
Dan Gohman
1053502486 I missed this file in r54223. movzbl is now used instead 
of movzbw here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54224 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 18:23:34 +00:00
Dan Gohman
11ba3b1af6 Reapply r54147 with a constraint to only use the 8-bit 
subreg form on x86-64, to avoid the problem with x86-32
having GPRs that don't have 8-bit subregs.

Also, change several 16-bit instructions to use 
equivalent 32-bit instructions. These have a smaller
encoding and avoid partial-register updates.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54223 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 18:09:17 +00:00
Owen Anderson
912923925f Value numbers whose def index is a special sentinel value should not be remapped. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54218 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 17:42:47 +00:00
Bruno Cardoso Lopes
4b877ca1c5 Fixed bug in global address lowering for functions and in Brcond lowering 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54215 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 17:06:13 +00:00
Bruno Cardoso Lopes
ea7930e618 Removed small section flag for mips, the assembler doesnt support this flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54214 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-30 17:04:04 +00:00