Thomas Preudhomme
2018-04-16 10:06:56 UTC
Note1: working for Linaro every other week
=== Issues ===
* IT issues made me loose 1 day of work
=== Work done during this LLVM+GCC week ===
* LLVM PR34170 (crashes with inline asm with double output operand in GPR):
internal review
+ improved patch to also support case with several output operands
-> had to choose to relax test a bit to not put expectation on
register allocator
* Support arithmetic on FileCheck regex variables: in progress
+ an attempt to be able to express that 2 registers are related by some
arithmetic expression (eg. vmov dY, rX, rX+1), seems doable
Upstream work on Arm GCC side:
cmse_nonsecure_caller return wrong answer: backported to GCC 7
* __builtin_arm_set_fpscr crashes with literal values input: committed to
trunk, backport oked
+ do more testing and prepare backport to GCC 6 & 7
* PR85344 (GCC fails constraint check on valid code): in progress
+ 2 prototype patches done but inconclusive result
+ pondering what should be the expect behaviour
+ investigating the extent of the problem -> both immediate and register
constraints can be surprising
=== Plan for next week (week 12) ===
* Investigate stack-protector failure with Linaro GCC 7 toolchains
* DSGHACK-25 (Support arithmetic on FileCheck regex variable): finish patch
=== Planned leave ===
* 28th April -> 29th May Sabbatical (Trip to France, then China, then
France again)
=== Issues ===
* IT issues made me loose 1 day of work
=== Work done during this LLVM+GCC week ===
* LLVM PR34170 (crashes with inline asm with double output operand in GPR):
internal review
+ improved patch to also support case with several output operands
-> had to choose to relax test a bit to not put expectation on
register allocator
* Support arithmetic on FileCheck regex variables: in progress
+ an attempt to be able to express that 2 registers are related by some
arithmetic expression (eg. vmov dY, rX, rX+1), seems doable
Upstream work on Arm GCC side:
cmse_nonsecure_caller return wrong answer: backported to GCC 7
* __builtin_arm_set_fpscr crashes with literal values input: committed to
trunk, backport oked
+ do more testing and prepare backport to GCC 6 & 7
* PR85344 (GCC fails constraint check on valid code): in progress
+ 2 prototype patches done but inconclusive result
+ pondering what should be the expect behaviour
+ investigating the extent of the problem -> both immediate and register
constraints can be surprising
=== Plan for next week (week 12) ===
* Investigate stack-protector failure with Linaro GCC 7 toolchains
* DSGHACK-25 (Support arithmetic on FileCheck regex variable): finish patch
=== Planned leave ===
* 28th April -> 29th May Sabbatical (Trip to France, then China, then
France again)