Hang during OpenCL kernel compilation for AMD GPU

Quuxplusone commented 4 years ago


Bugzilla Link	PR45125
Status	NEW
Importance	P normal
Reported by	Beau V.C. Bellamy (bellamy.beau@gmail.com)
Reported on	2020-03-05 11:31:21 -0800
Last modified on	2020-03-05 11:35:09 -0800
Version	9.0
Hardware	PC Linux
CC	htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
Fixed by commit(s)
Attachments	`backtrace.txt` (5076 bytes, text/plain) `rk4_copyrot.cl` (830 bytes, text/x-opencl-src)
Blocks
Blocked by
See also

Created attachment 23208
backtrace with debugging

OpenCL: Device[0] Vendor        : AMD
OpenCL: Device[0] Name          : AMD Radeon (TM) R9 380 Series (TONGA, DRM
3.36.0, 5.5.2-200.fc31.x86_64, LLVM 9.0.0)
OpenCL: Device[0] Version       : OpenCL 1.1 Mesa 19.2.8

Quuxplusone commented 4 years ago

Attached backtrace.txt (5076 bytes, text/plain): backtrace with debugging

Quuxplusone commented 4 years ago

Attached rk4_copyrot.cl (830 bytes, text/x-opencl-src): Kernel that causes hang

Quuxplusone commented 4 years ago

Compiler seems to be in an infinite loop computing the fragment size.

Quuxplusone / LLVMBugzillaTest

Hang during OpenCL kernel compilation for AMD GPU #44095