AddressSanitizer-x86_64-linux :: TestCases/strcmp.c is flaky on amd64

[llvmbot]

Bugzilla Link	48961
Version	trunk
OS	Linux
Blocks	#48661
Attachments	asan.txt
Reporter	LLVM Bugzilla Contributor
CC	@tstellar,@vitalybuka

Extended Description

Failed in 1 out of 3 test runs:

FAIL: AddressSanitizer-x86_64-linux :: TestCases/strcmp.c (2235 of 7337)

/var/tmp/portage/sys-libs/compiler-rt-sanitizers-12.0.0_rc1/work/compiler-rt/test/asan/TestCases/strcmp.c:17:12: error: CHECK: expected string not found in input
// CHECK: READ of size 1
^
:2:70: note: scanning from here
==157813==ERROR: AddressSanitizer: stack-buffer-underflow on address 0x7ffe4c7102bf at pc 0x00000042ef69 bp 0x7ffe4c710290 sp 0x7ffe4c70fa38
^
:3:1: note: possible intended match here
READ of size 2 at 0x7ffe4c7102bf thread T0
^

Full output attached.

[tstellar]

This bug was not resolved in time for the 12.0.0 release, so it will have to wait for 12.0.1.

If you feel this is a high-priority bug that should be fixed for 12.0.0, please re-add release-12.0.0 to the Blocks field and add a comment explaining why this is high-priority.

[tstellar]

mentioned in issue #48661