https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83836
Bug ID: 83836
Summary: [8 regression] gcc.dg/vect/pr79920.c FAILs
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
CC: rsandifo at gcc dot gnu.org
Target Milestone: ---
Target: sparc-sun-solaris2.*, also on arm-none-eabi,
arm-none-linux-gnueabi, ia64-suse-linux-gnu,
mips64el-unknown-linux-gnu
Between 20180112 (r256571) and 20180114 (r256664), the gcc.dg/vect/pr79920.c
test started to FAIL on a couple of targets:
+FAIL: gcc.dg/vect/pr79920.c -flto -ffat-lto-objects scan-tree-dump-times vect
"using an in-order \\\\(fold-left\\\\) reduction" 1 (found 0 times)
+FAIL: gcc.dg/vect/pr79920.c scan-tree-dump-times vect "using an in-order
\\\\(fold-left\\\\) reduction" 1 (found 0 times)
I'm seeing it on Solaris/SPARC, but several others are also affected according
to gcc-testresults postings.
This is most likely caused by r256639:
2018-01-13 Richard Sandiford <richard.sandif...@linaro.org>
Alan Hayward <alan.hayw...@arm.com>
David Sherwood <david.sherw...@arm.com>
[...]
gcc/testsuite/
[...]
* gcc.dg/vect/pr79920.c: Expect both loops to be vectorized and
check for a message about using in-order reductions.
Rainer
