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Requested in CL 11380.
Change-Id: Icf0d23fb8d383c76272401e363cc9b2169d11403
Reviewed-on: https://go-review.googlesource.com/11450
Reviewed-by: Alan Donovan <adonovan@google.com>
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The SSA implementation logs for three purposes:
* debug logging
* fatal errors
* unimplemented features
Separating these three uses lets us attempt an SSA
implementation for all functions, not just
_ssa functions. This turns the entire standard
library into a compilation test, and makes it
easy to figure out things like
"how much coverage does SSA have now" and
"what should we do next to get more coverage?".
Functions called _ssa are still special.
They log profusely by default and
the output of the SSA implementation
is used. For all other functions,
logging is off, and the implementation
is built and discarded, due to lack of
support for the runtime.
While we're here, fix a few minor bugs and
add some extra Unimplementeds to allow
all.bash to pass.
As of now, SSA handles 20.79% of the functions
in the standard library (689 of 3314).
The top missing features are:
10.03% 2597 SSA unimplemented: zero for type error not implemented
7.79% 2016 SSA unimplemented: addr: bad op DOTPTR
7.33% 1898 SSA unimplemented: unhandled expr EQ
6.10% 1579 SSA unimplemented: unhandled expr OROR
4.91% 1271 SSA unimplemented: unhandled expr NE
4.49% 1163 SSA unimplemented: unhandled expr LROT
4.00% 1036 SSA unimplemented: unhandled expr LEN
3.56% 923 SSA unimplemented: unhandled stmt CALLFUNC
2.37% 615 SSA unimplemented: zero for type []byte not implemented
1.90% 492 SSA unimplemented: unhandled stmt CALLMETH
1.74% 450 SSA unimplemented: unhandled expr CALLINTER
1.74% 450 SSA unimplemented: unhandled expr DOT
1.71% 444 SSA unimplemented: unhandled expr ANDAND
1.65% 426 SSA unimplemented: unhandled expr CLOSUREVAR
1.54% 400 SSA unimplemented: unhandled expr CALLMETH
1.51% 390 SSA unimplemented: unhandled stmt SWITCH
1.47% 380 SSA unimplemented: unhandled expr CONV
1.33% 345 SSA unimplemented: addr: bad op *
1.30% 336 SSA unimplemented: unhandled OLITERAL 6
Change-Id: I4ca07951e276714dc13c31de28640aead17a1be7
Reviewed-on: https://go-review.googlesource.com/11160
Reviewed-by: Keith Randall <khr@golang.org>
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Change-Id: I33025a4a41fd91f6ee317d33a6eebf27fa00ab51
Reviewed-on: https://go-review.googlesource.com/11115
Reviewed-by: Keith Randall <khr@golang.org>
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Add an additional int64 auxiliary field to Value.
There are two main reasons for doing this:
1) Ints in interfaces require allocation, and we store ints in Aux a lot.
2) I'd like to have both *gc.Sym and int offsets included in lots
of operations (e.g. MOVQloadidx8). It will be more efficient to
store them as separate fields instead of a pointer to a sym/int pair.
It also simplifies a bunch of code.
This is just the refactoring. I'll start using this some more in a
subsequent changelist.
Change-Id: I1ca797ff572553986cf90cab3ac0a0c1d01ad241
Reviewed-on: https://go-review.googlesource.com/10929
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
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Implement correct Go shifts.
Allow multi-line rewrite rules.
Fix offset & alignment in stack alloc.
Change-Id: I0ae9e522c83df9205bbe4ab94bc0e43d16dace58
Reviewed-on: https://go-review.googlesource.com/10891
Reviewed-by: Keith Randall <khr@golang.org>
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Revamp autogeneration. Get rid of gogenerate commands, they are more
trouble than they are worth. (If the code won't compile, gogenerate
doesn't work.)
Generate opcode enums & tables. This means we only have to specify
opcodes in one place instead of two.
Add arch prefixes to opcodes so they will be globally unique.
Change-Id: I175d0a89b701b2377bbe699f3756731b7c9f5a9f
Reviewed-on: https://go-review.googlesource.com/10812
Reviewed-by: Alan Donovan <adonovan@google.com>
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Change-Id: I9d4e0f3e9afc9920ee0d77b0073ac8597c7c048f
Reviewed-on: https://go-review.googlesource.com/10756
Reviewed-by: Keith Randall <khr@golang.org>
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Semi-regular merge of tip to dev.ssa.
Complicated a bit by the move of cmd/internal/* to cmd/compile/internal/*.
Change-Id: I1c66d3c29bb95cce4a53c5a3476373aa5245303d
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