[Code size investigation]
Results (clang 2% larger than gcc) replicated on cortex-m0 and
cortex-m4 on Zephyr.
- Clang optimisation to use BLX rather than BL when same function
called multiple times is a pessimisation on Zephyr, especially on M0.
- GCC register allocation seems to result in fewer sp
QEMU Tooling ([VIRT-252])
=
QEMU plugin support ([VIRT-280])
- posted {PATCH v1 0/4} arm semihosting cleanups Message-Id:
<927219a5-a56d-bbbe-26ed-ffb8be12f...@linaro.org>
- this makes some of the plugin cpu_load interface easier
[VIRT-280] https://projects.lin
Progress:
* VIRT-65 [QEMU upstream maintainership]
+ catching up with email and code review -- managed to get some
series reviewed in time for softfreeze on Tuesday, notably the
'sbsa-ref' reference platform model that Hongbo Zhang was working on
+ a lot of release-herding, working thr
== Progress ==
* GCC:
- FDPIC: No progress, still waiting for feedback
- noinit attribute: reviewers asked to make it a generic attribute,
rather than target-specific. New patch sent.
* GNU-583 (Fix Linux kernel built for Thumb-2 with GCC using LTO)
- no progress this week
* GCC upstream validati
== This Week ==
* PR88833
- Fixed pending issues with x86 and committed fix to trunk
* PR90723
- Issue seems to be infinite recursion overflowing the stack, investigating.
* Misc
- Meetings
== Next Week ==
- PR90723
- Add testsuite comparison to tcwg_gnu
== Progress ==
* LLVM SPEC2k6 Performance Analysis [LLVM-134]
- Still working around perf version mismatches, going to investigate
if we can use a newer version of perf to collect data
- Had a look at the assembly for sphinx from gcc-6, clang-3.9.1 and
clang-8.0.0, but going to wait for bette
