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33978 Commits

Author SHA1 Message Date
Dan Gohman
e0f06c78d3 Remove the optimizations that convert BRCOND and BR_CC into 
unconditional branches or fallthroghes. Instcombine/SimplifyCFG
should be simplifying branches with known conditions.

This fixes some problems caused by these transformations not
updating the MachineBasicBlock CFG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89017 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 00:47:23 +00:00
Devang Patel
76e3e50b8a Remove debug info attached with an instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89016 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 00:47:06 +00:00
Jeffrey Yasskin
dc1472b6d9 In GlobalVariable::setInitializer, assert that the initializer has the 
right type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89014 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 00:43:13 +00:00
Evan Cheng
574186f8ad A few more instructions that should be marked re-materializable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89011 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 00:23:22 +00:00
Johnny Chen
9d52e8db8a Set Rm bits of BX_RET to 0b1110 (R14); and set condition code bits of BRIND to 
0b1110 (ALways).  This is so that the disassembler decoder can distinguish among
BX_RET, BRIND, and BXr9.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89000 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 23:57:56 +00:00
Dan Gohman
834651c945 Initialize the new AsmPrinterFlags field to 0, fixing uses of 
uninitialized memory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88985 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 22:49:38 +00:00
Jeffrey Yasskin
d1ba06bf13 Make X86-64 in the Large model always emit 64-bit calls. 
The large code model is documented at
http://www.x86-64.org/documentation/abi.pdf and says that calls should
assume their target doesn't live within the 32-bit pc-relative offset
that fits in the call instruction.

To do this, we turn off the global-address->target-global-address
conversion in X86TargetLowering::LowerCall(). The first attempt at
this broke the lazy JIT because it can separate the movabs(imm->reg)
from the actual call instruction. The lazy JIT receives the address of
the movabs as a relocation and needs to record the return address from
the call; and then when that call happens, it needs to patch the
movabs with the newly-compiled target. We could thread the call
instruction into the relocation and record the movabs<->call mapping
explicitly, but that seems to require at least as much new
complication in the code generator as this change.

To fix this, we make lazy functions _always_ go through a call
stub. You'd think we'd only have to force lazy calls through a stub on
difficult platforms, but that turns out to break indirect calls
through a function pointer. The right fix for that is to distinguish
between calls and address-of operations on uncompiled functions, but
that's complex enough to leave for someone else to do.

Another attempt at this defined a new CALL64i pseudo-instruction,
which expanded to a 2-instruction sequence in the assembly output and
was special-cased in the X86CodeEmitter's emitInstruction()
function. That broke indirect calls in the same way as above.

This patch also removes a hack forcing Darwin to the small code model.
Without far-call-stubs, the small code model requires things of the
JITMemoryManager that the DefaultJITMemoryManager can't provide.

Thanks to echristo for lots of testing!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88984 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 22:41:33 +00:00
Evan Cheng
600c043697 - Check memoperand alignment instead of checking stack alignment. Most load / store folding instructions are not referencing spill stack slots. 
- Mark MOVUPSrm re-materializable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88974 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 21:56:03 +00:00
Devang Patel
f76a3d634f Revert r88939. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88973 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 21:53:40 +00:00
David Greene
f941d29077 Fix an expensive-checks error. 
The Mask and LHSMask may not be of the same size, so don't do the
transformation if they're different.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88972 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 21:52:23 +00:00
Jim Grosbach
7bde297133 Make the pass class name more explicit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88964 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 21:13:22 +00:00
Jim Grosbach
074fb0252d make pass name a bit more clear 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88961 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 21:03:58 +00:00
Dan Gohman
6ac0e76ff4 Sink a #include <map> to where it's actually needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88956 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 20:40:47 +00:00
Dan Gohman
552c0dff34 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88953 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 20:35:59 +00:00
Bob Wilson
4a504c6ff8 Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88940 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 19:33:27 +00:00
Devang Patel
270a97430d Add VISIBILITY_HIDDEN marker. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88939 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 19:20:48 +00:00
Jim Grosbach
08cbda56b6 Simplify thumb2 jump table adjustments. Remove unnecessary calculation and 
usage of block sizes and offsets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88935 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 18:58:52 +00:00
Jim Grosbach
9249efe4c7 clarify comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88933 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 18:55:47 +00:00
Bob Wilson
c4a0c843e4 Fix some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88932 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 18:54:08 +00:00
Bob Wilson
d34f5d91bc Whitespace: be consistent with pointer syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88929 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 18:08:46 +00:00
Bob Wilson
3cbc312087 Clean up whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88927 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 17:56:13 +00:00
Jim Grosbach
b2e86bb142 back off for a bit. tracking down weirdness 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88919 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 17:17:48 +00:00
Jim Grosbach
ca215e7804 Analyze has to be before checking the condition, obviously. Properly construct an iterator for prior. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88917 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 17:10:56 +00:00
David Greene
ddff941357 Support spill comments. 
Have the asm printer emit a comment if an instruction is a spill or
reload and have the spiller mark copies it introdues so the asm printer
can also annotate those.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88911 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 15:12:23 +00:00
Duncan Sands
46785e68b8 BuildIntCast takes an additional parameter, isSigned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88910 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 13:15:28 +00:00
Duncan Sands
f63c41033a CreateIntCast takes an "isSigned" parameter. Pass "true" for it, rather than 
a name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88908 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 12:32:28 +00:00
Evan Cheng
746d546877 Special case FixedStackPseudoSourceValueVal as well. Do we really need to differentiate PseudoSourceValueVal from FixedStackPseudoSourceValueVal at this level? 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88902 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 07:10:36 +00:00
Evan Cheng
39aa7251a2 Check if subreg index is zero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88899 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 06:31:49 +00:00
Evan Cheng
285a7d57dc For some targets, a copy can use a register multiple times, e.g. ppc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88895 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 05:52:06 +00:00
Bruno Cardoso Lopes
add2076c06 Disable ldc1/sdc1 instructions for mips1 targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88887 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 04:35:29 +00:00
Bruno Cardoso Lopes
6e0b658dad - Fix a small bug while handling target constant pools (one param was missing). 
- Add a smarter constant pool loading, instead of:

lui $2, %hi($CPI1_0)
addiu $2, $2, %lo($CPI1_0)
lwc1 $f0, 0($2)

Generate:

lui $2, %hi($CPI1_0)
lwc1 $f0, %lo($CPI1_0)($2)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88886 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 04:33:42 +00:00
Chris Lattner
d6add155a7 typo spotted by duncan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88884 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 03:51:42 +00:00
Lang Hames
79ac32de3b Fixes the bug exposed by Anton's test case in PR 5495: 
Make sure when ProcessImplicitDefs removes a copy which kills its source reg that it
removes the copy from said reg's Kills list.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88881 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 02:07:31 +00:00
Lang Hames
b126d0530d Fix for the original bug in PR5495 - Look at uses as well as defs when determining the PHI-copy insert point. 
- Patch by Andrew Canis!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88880 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 02:00:09 +00:00
Jim Grosbach
a44321776e Detect need for autoalignment of the stack earlier to catch spills more 
conservatively. eliminateFrameIndex() machinery adjust to handle addr mode
6 (vld1/vst1) used for spills. Fix tests to expect aligned Q-reg spilling

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88874 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 21:45:34 +00:00
Jim Grosbach
6cb6788b79 set the def of the VLD1q64 properly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88873 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 21:05:07 +00:00
Chris Lattner
800c47ec10 teach LVI to infer edge information from switch instructions. 
This allows JT to eliminate a ton of infeasible edges when
handling code like the templates in PatternMatch.h


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88869 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 20:02:12 +00:00
Chris Lattner
5553a3a510 fix a logic error that would cause LVI-JT to miscompile 
some conditionals


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88868 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 20:01:24 +00:00
Chris Lattner
e5642812d3 implement the first stab at caching queries. This isn't correct 
(because the invalidation logic is missing) but LVI isn't enabled
by default anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88867 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 20:00:52 +00:00
Chris Lattner
2c5adf832a refactor a bunch of code forming the new LazyValueInfoCache 
and LVIQuery classes, no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88866 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 19:59:49 +00:00
Chris Lattner
4e447ebc58 make PRE of loads preserve the alignment of the moved load instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88865 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 19:58:31 +00:00
Chris Lattner
1fb5630474 fix a bug handling 'not x' when x is undef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88864 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 19:57:43 +00:00
Nick Lewycky
93f9f7a440 Add a complex missed optimization opportunity I came across while investigating 
bug 5438.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88855 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 17:51:23 +00:00
Edward O'Callaghan
e0fb75d586 Add PSP OS Target to Triple, Credit to Bruno Cardoso Lopes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88849 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 10:18:17 +00:00
Nick Lewycky
feb8018764 Revert r88830 and r88831 which appear to have caused a selfhost buildbot some 
grief. I suspect this patch merely exposed a bug else.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88841 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 07:47:32 +00:00
Nick Lewycky
df772f257f Teach instcombine to look for booleans in wider integers when it encounters a 
zext(icmp). It may be able to optimize that away. This fixes one of the cases
in PR5438.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88830 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 05:55:17 +00:00
Lang Hames
e98b4b0695 Added an assert to the PBQP allocator to catch infinite cost solutions which might otherwise lead to miscompilations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88829 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 04:39:51 +00:00
Daniel Dunbar
bfa0929583 Remove bogus corei7 and atom entries, the family was incorrect. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88818 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 22:04:42 +00:00
Daniel Dunbar
a7ac3cee8f Fill out X86 table, although we are missing lots of names for things. We now 
properly detect my Xeon box though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88814 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 21:36:19 +00:00
Daniel Dunbar
ba43e0785b Report the detected host CPU in --version. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88813 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 21:36:07 +00:00