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Author SHA1 Message Date
Ryan Houdek
b199ce70e9 Changes over IRValidation to the new format. 
We still can't pass this validation pass
 2020-03-06 07:55:37 +02:00
Ryan Houdek
b7c7a34cf6 Changes (aggressively) how branching is handled in the frontend. 
This changes over CondJump to have a defined True and False branch path.
Additionally needing to change over everything to handle this.
This now means that a false branch condition will no longer assume
fallthrough past this instruction.
Currently the x86-64 JIT generates an additional jmp instruction on
fallthrough that isn't optimized away.

This is working towards improvements in our IR branching model and
improving IRValidation in doing so.
This is working towards the model that IRBlocks can only have 0-2
successors.
Ret/Exit - 0 successors
Jump - 2 successors
CondJump - 2 successors

TBD:
Syscall/CPUID - Breaking block?
 2020-03-06 07:55:37 +02:00
Ryan Houdek
fc8c6c80fb Makes sure in Frontend we say that Entry and ConditionalJump fallthroughs are JumpTargets 2020-03-06 07:55:37 +02:00
Ryan Houdek
7da7880a41 Splits X86Table definitions in to multiple files 
Allows YouCompleteMe to handle these files and makes recompiling less of
a pain when one line is changed.
 2020-03-06 07:55:36 +02:00
Scott Mansell
86fc779f81 Add getcwd syscall 2020-03-06 07:55:36 +02:00
Scott Mansell
597ee06243 Add ConstProp for Mul 2020-03-06 07:55:36 +02:00
Scott Mansell
5263f94d84 Elimitate loads before const prop 2020-03-06 07:55:36 +02:00
Scott Mansell
b148afef4b Add Dead Code Elimitation pass 
Refactor the previous WIP to use NumUses
 2020-03-06 07:55:36 +02:00
Scott Mansell
b34465544a Fix Incorrect tracking during Redudent Flag pass 2020-03-06 07:55:36 +02:00
Scott Mansell
8e34a74030 Keep node usage when compacting 2020-03-06 07:55:36 +02:00
Scott Mansell
d1f2d85d0c Fix up usage tracking of Args. 
Make sure we keep them up to date when removing
nodes.
 2020-03-06 07:55:36 +02:00
Scott Mansell
b054807270 WIP Dead Code Elimitation pass 2020-03-06 07:55:36 +02:00
Ryan Houdek
741599baa8 Update IR documentation 2020-03-06 07:55:36 +02:00
Ryan Houdek
aabc6f6de2 Extends ConstProp pass a bit more. 
Still doesn't cover all the IROps but it hits quite a few more that I
could see.
 2020-03-06 07:55:35 +02:00
Ryan Houdek
160240dc23 Adds a few AVX instructions to the X86Tables 2020-03-06 07:55:35 +02:00
Ryan Houdek
6890ae4e20 Adds an inblock time sampling routine to the x86-64 JIT 
Useful for a quick overview of the time spent in a function. It isn't
amazing for profiling since it effects the time in the function by
itself.
Only useful as a reference.
 2020-03-06 07:55:35 +02:00
Ryan Houdek
0a959475c5 Removes support for non-RA path on x86-64 JIT 
RA is now fully working, so this path is no longer necessary
 2020-03-06 07:55:35 +02:00
Ryan Houdek
668d392eb7 Adds support for spilling in the AArch64 JIT 2020-03-06 07:55:35 +02:00
Ryan Houdek
0eb86389de Cleans up RA spill slot calculation. 
RA spill slots now have live ranges so we can reuse the spill slot.
This can reduce spill stack usage significantly in code ranges with
large live ranges.
 2020-03-06 07:55:35 +02:00
Ryan Houdek
b2ffa28759 Adds gitignore 2020-03-06 07:55:35 +02:00
Ryan Houdek
012805fd72 Fixes multiblock and a few bugs in RA. 
This makes it so multiblock can now be enabled with the JITs.
Results in a decent performance increase by itself.
 2020-03-06 07:55:35 +02:00
Ryan Houdek
625112780a Adds support for IR::Print to the x86 JIT 2020-03-06 07:55:34 +02:00
Ryan Houdek
c105c52d67 Changes IRValidation to use the new IR::GetArgs function. 2020-03-06 07:55:34 +02:00
Ryan Houdek
05205515b5 Handle IR::Break on x86-64 better 
HLT converts to Break, which is used for leaving the VM so we need to
handle that correctly.
 2020-03-06 07:55:34 +02:00
Ryan Houdek
1a3498107b Minor cleanup in the non-RA x86 JIT path 2020-03-06 07:55:34 +02:00
Ryan Houdek
26a3290b43 Fix a couple mistakes in the x86 JIT using movsx instead of movsxd 2020-03-06 07:55:34 +02:00
Ryan Houdek
570ff7b29b Supports FS/GS on CMPXCHG 2020-03-06 07:55:33 +02:00
Ryan Houdek
52b5ac9e19 Changes slightly how IR::IRHeader is represented 2020-03-06 07:55:33 +02:00
Ryan Houdek
f27f9485f6 Changes IR::CondJump's condition to dump textually. 2020-03-06 07:55:33 +02:00
Ryan Houdek
a8ff6414c1 Fixes indent failure on IR dumping. 
Depending on IR ordering then it could have wrapped around to max
indent.
 2020-03-06 07:55:22 +02:00
Ryan Houdek
7a43b3150b Fixes bug in frontend displacement calculation 
When an instruction had a literal and also a SIB displacement then this
was causing it to be calculated incorrectly.
 2020-03-06 07:55:21 +02:00
Ryan Houdek
a8bb815a76 Adds IR::ADD to constprop pass. 2020-03-06 07:55:21 +02:00
Ryan Houdek
218f38ff3d Adds new IR::GetArgs function 
This returns SSA args that will eventually be register allocated.
 2020-03-06 07:55:20 +02:00
Ryan Houdek
58e019fbf1 Disabled AVX512 reporting in CPUID 
We don't support it and it'll be something we won't want to support for
a long time.
 2020-03-06 07:55:20 +02:00
Ryan Houdek
1b751f11dc Fixes a bug in BitSet 
If the number of nodes in a bitset grew too large then it wouldn't fit
in that calculation.
 2020-03-06 07:55:19 +02:00
Ryan Houdek
6d92146578 Flesh out X86Tables some more 
Adds an EVEX table and throws some ops in to an unimplemented function.
This is necessary for multiblock in the future where it will see
unsupported instructions but not actually execute them.
 2020-03-06 07:55:18 +02:00
Scott Mansell
d32ebc0de0 Signal our lack of support for CET shadow stacks 
Needed to support binaries linked with glibc 2.30 and later.

glibc doesn't actually check CPUID, as kernel support is needed.
Instead, it just calls ARCH_CET_STATUS and checks for an error.
 2020-03-06 07:55:18 +02:00
Ryan Houdek
13a15d6f3e Fix RA pass to support spilling 2020-03-06 07:55:17 +02:00
Ryan Houdek
3f0d020899 Add support for an Invalid NodeWrapperIterator 2020-03-06 07:55:17 +02:00
Ryan Houdek
db5467211c Fixes the AArch64 JIT 
Moves it to the new IR iterating style.
Forgot to clear icache after generation.
Fixes overly aggressive struct packing causing a fault
 2020-03-06 07:55:16 +02:00
Ryan Houdek
c21f711417 Adds a JitSymbols interface 
This allows linux perf to see execution inside of JIT functions.
This could be extended in the future to support something like vtune or
oprofile.
 2020-03-06 07:55:16 +02:00
Ryan Houdek
d645e58721 Remove some debug logs 2020-03-06 07:55:15 +02:00
Ryan Houdek
1dbeff462c Fixes Redundant Context Load Elimination pass 
Allows other passes to see more things it can optimize
`ReplaceAllUsesWith` is a bit of a trap and needs to be replaced.
 2020-03-06 07:55:14 +02:00
Ryan Houdek
4ccdd689ce Fixes a bug in the CBW/CWDE/CDQE instruction 
Was running at the wrong size the entire time
 2020-03-06 07:55:14 +02:00
Ryan Houdek
199cfd76d8 Refactor IR and other changes that are hard to split 
I had to change how blocks are represented to make it easier to parse
This required a fairly substantial refactor that makes it so blocks are
represented differently and we can walk them sequentially.

This will make future analysis easier to deal with.
Had to rewrite the passes and core's parsing of the IR afterwards.

Moved RA in to a optimization pass to be shared between the JIT backends
This works because x86-64 and AArch64 RA can be identical.

Still doesn't support PHI nodes or spilling correctly, this is the first
step in the process of getting there.
 2020-03-06 07:55:13 +02:00
Ryan Houdek
6ac9f93d0d Update vixl submodule 2020-03-06 07:54:33 +02:00
Ryan Houdek
2975161e89 Cleanup the Frontend x86 decoder 
Makes it easier to follow the source
 2020-03-06 07:54:32 +02:00
Ryan Houdek
71a9713970 Add some stracing to the syscall emulation 2020-03-06 07:54:32 +02:00
Ryan Houdek
55b4eb8689 Defined a few more Linux syscalls 2020-03-06 07:54:32 +02:00
Ryan Houdek
c2e8c8d430 Minor cleanup in BlockCache 2020-03-06 07:54:31 +02:00