== This week ==
* Bug 539 - .LTHUNK symbols are surviving (2/10)
- Built Qt 4.8 using 4.9 and 4.9 toolchain and verified fix
identified by Jim Wilson
- Plan to close as fixed
* Bug 535 - static cast from float to int not working on ARM hardfp (2/10)
- Investigation
* TCWG-140 - Transform end of loop conditions to min_expr (1/10)
- Investigation into blueprint and patch
* TCWG-146 - Detect smin/umin idiom (2/10)
- After investigation no patch deemed necessary for aarch64
* Misc (1/10)
- Conference calls
* US Holiday - Memorial Day, May 25th (2/10)
== Next week ==
- Submit Aarch32 patch for TCWG-146 upstream
- TCWG-140 investigation
== This week ==
* TCWG-619 (4/10)
- Chromium builds with LTO single-partition with gold by changing
arm_is_long_call_p() to always return true, thereby disabling short
calls.
- Fails to build with ld.bfd for single partiition with the following error:
obj/third_party/webrtc/base/rtc_base.ipaddress.o: In function
`rtc::IPAddress::IPAddress(unsigned int)':
ipaddress.cc:(.text._ZN3rtc9IPAddressC2Ej[_ZN3rtc9IPAddressC5Ej]+0x28):
undefined reference to `vtable for rtc::IPAddress'
- gas debug for "Thumb2 branch out of range" in config/tc-arm.c:
Fails in md_apply_fix at following condition:
if ((value & ~0x3fffff) && ((value & ~0x3fffff) != ~0x3fffff))
{
if (!(ARM_CPU_HAS_FEATURE (cpu_variant, arm_arch_t2)))
as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
else if ((value & ~0x1ffffff)
&& ((value & ~0x1ffffff) != ~0x1ffffff))
as_bad_where (fixP->fx_file, fixP->fx_line,
_("Thumb2 branch out of range"));
}
The condition became true for value == fffffda
Backtrace: http://pastebin.com/QZqbwNCy
Options passed to as: -march=armv7-a -march=armv7-a -mfloat-abi=hard
-mfloat-abi=hard -mfpu=neon -mfpu=neon -meabi=5
- Disabling the above condition results in:
arm-linux-gnueabihf-g++: internal compiler error: Killed (program lto1)
* PR49551 (2/10)
- Modified patch and retested on x86 and arm.
- Submitted patch upstream for review.
* Misc (4/10)
- Exams ended on Monday.
- College Annual day.
== Next Week ==
- Work towards getting the patch approved.
- Continue investigating "Thumb2 branch out of range" error.
- Begin with TCWG-777.
- Submit cfgloop.h flattening patch upstream.
