1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-30 07:22:55 +01:00
llvm-mirror/lib/Target/SparcV8/README.txt

88 lines
2.9 KiB
Plaintext
Raw Normal View History

2004-02-25 20:28:19 +01:00
2005-12-16 08:20:53 +01:00
Meta TODO list:
1. Convert all instructions to use autogeneration for asm strings.
2. Convert asmprinter to use lib/CodeGen/AsmPrinter for global init printing
constant pool printing, etc.
3. Create a new DAG -> DAG instruction selector, by adding patterns to the
instructions.
4. profit!
2004-02-25 20:28:19 +01:00
SparcV8 backend skeleton
------------------------
2004-11-20 00:09:40 +01:00
This directory houses a 32-bit SPARC V8 backend employing an expander-based
instruction selector. It is not yet functionally complete. Watch
this space for more news coming soon!
2004-02-25 20:28:19 +01:00
Current expected test failures
------------------------------
2004-09-29 05:48:55 +02:00
Here are the currently-expected SingleSource failures for V8
(Some C++ programs are crashing in libstdc++ at the moment;
I'm not sure why.)
(llc) SingleSource/Regression/C++/EH/exception_spec_test
(llc) SingleSource/Regression/C++/EH/throw_rethrow_test
Here are the currently-expected MultiSource failures for V8:
(llc,cbe) MultiSource/Applications/d/make_dparser
(llc,cbe) MultiSource/Applications/hexxagon
(llc) MultiSource/Benchmarks/Fhourstones
(llc,cbe) MultiSource/Benchmarks/McCat/03-testtrie
(llc) MultiSource/Benchmarks/McCat/18-imp
(llc,cbe) MultiSource/Benchmarks/Prolangs-C/bison/mybison
(llc,cbe) MultiSource/Benchmarks/Prolangs-C/fixoutput
(llc,cbe) MultiSource/Benchmarks/Prolangs-C/gnugo
(llc,cbe) MultiSource/Benchmarks/Prolangs-C/plot2fig
(llc,cbe) MultiSource/Benchmarks/Ptrdist/anagram
(llc,cbe) MultiSource/Benchmarks/FreeBench/analyzer
* DANGER * analyzer will run the machine out of VM
(I don't know whether the following fail in cbe:)
(llc) MultiSource/Benchmarks/FreeBench/distray
(llc) MultiSource/Benchmarks/FreeBench/fourinarow
(llc) MultiSource/Benchmarks/FreeBench/pifft
(llc) MultiSource/Benchmarks/MallocBench/gs
(llc) MultiSource/Benchmarks/Prolangs-C++/deriv1
(llc) MultiSource/Benchmarks/Prolangs-C++/deriv2
2004-12-13 01:27:35 +01:00
Known SPEC failures for V8 (probably not an exhaustive list):
(llc) 134.perl
(llc) 177.mesa
(llc) 188.ammp -- FPMover bug?
(llc) 256.bzip2
(llc,cbe) 130.li
(native,llc,cbe) 126.gcc
(native,llc,cbe) 255.vortex
2004-07-16 12:31:36 +02:00
To-do
-----
* support shl on longs (fourinarow needs this)
* support casting 64-bit integers to FP types (fhourstones needs this)
2004-12-13 21:13:10 +01:00
* support FP rem (call fmod)
* Keep the address of the constant pool in a register instead of forming its
address all of the time.
* Change code like this:
or %o0, %lo(.CPI_main_0), %o0
ld [%o0+0], %o0
into:
ld [%o0+%lo(.CPI_main_0)], %o0
for constant pool access.
* We can fold small constant offsets into the %hi/%lo references to constant
pool addresses as well.
2004-07-16 12:31:36 +02:00
* Directly support select instructions, and fold setcc instructions into them
where possible. I think this is what afflicts the inner loop of Olden/tsp
(hot block = tsp():no_exit.1.i, overall GCC/LLC = 0.03).
* Generate fsqrtd for calls to sqrt() (~ 4% speedup on Olden/tsp).
2004-02-25 20:28:19 +01:00
$Date$