3 1. Convert asmprinter to use lib/CodeGen/AsmPrinter for global init printing
4 constant pool printing, etc.
5 2. Create a new DAG -> DAG instruction selector, by adding patterns to the
10 SparcV8 backend skeleton
11 ------------------------
13 This directory houses a 32-bit SPARC V8 backend employing an expander-based
14 instruction selector. It is not yet functionally complete. Watch
15 this space for more news coming soon!
17 Current expected test failures
18 ------------------------------
20 Here are the currently-expected SingleSource failures for V8
21 (Some C++ programs are crashing in libstdc++ at the moment;
24 (llc) SingleSource/Regression/C++/EH/exception_spec_test
25 (llc) SingleSource/Regression/C++/EH/throw_rethrow_test
27 Here are the currently-expected MultiSource failures for V8:
29 (llc,cbe) MultiSource/Applications/d/make_dparser
30 (llc,cbe) MultiSource/Applications/hexxagon
31 (llc) MultiSource/Benchmarks/Fhourstones
32 (llc,cbe) MultiSource/Benchmarks/McCat/03-testtrie
33 (llc) MultiSource/Benchmarks/McCat/18-imp
34 (llc,cbe) MultiSource/Benchmarks/Prolangs-C/bison/mybison
35 (llc,cbe) MultiSource/Benchmarks/Prolangs-C/fixoutput
36 (llc,cbe) MultiSource/Benchmarks/Prolangs-C/gnugo
37 (llc,cbe) MultiSource/Benchmarks/Prolangs-C/plot2fig
38 (llc,cbe) MultiSource/Benchmarks/Ptrdist/anagram
39 (llc,cbe) MultiSource/Benchmarks/FreeBench/analyzer
40 * DANGER * analyzer will run the machine out of VM
41 (I don't know whether the following fail in cbe:)
42 (llc) MultiSource/Benchmarks/FreeBench/distray
43 (llc) MultiSource/Benchmarks/FreeBench/fourinarow
44 (llc) MultiSource/Benchmarks/FreeBench/pifft
45 (llc) MultiSource/Benchmarks/MallocBench/gs
46 (llc) MultiSource/Benchmarks/Prolangs-C++/deriv1
47 (llc) MultiSource/Benchmarks/Prolangs-C++/deriv2
49 Known SPEC failures for V8 (probably not an exhaustive list):
53 (llc) 188.ammp -- FPMover bug?
56 (native,llc,cbe) 126.gcc
57 (native,llc,cbe) 255.vortex
62 * support shl on longs (fourinarow needs this)
63 * support casting 64-bit integers to FP types (fhourstones needs this)
64 * support FP rem (call fmod)
66 * Keep the address of the constant pool in a register instead of forming its
67 address all of the time.
69 * Change code like this:
70 or %o0, %lo(.CPI_main_0), %o0
73 ld [%o0+%lo(.CPI_main_0)], %o0
74 for constant pool access.
76 * We can fold small constant offsets into the %hi/%lo references to constant
77 pool addresses as well.
79 * Directly support select instructions, and fold setcc instructions into them
80 where possible. I think this is what afflicts the inner loop of Olden/tsp
81 (hot block = tsp():no_exit.1.i, overall GCC/LLC = 0.03).
83 * Generate fsqrtd for calls to sqrt() (~ 4% speedup on Olden/tsp).