https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77684
Bug ID: 77684
Summary: many tree-prof testsuite failures in parallel make
check
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: testsuite
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
Target Milestone: ---
As discussed in https://gcc.gnu.org/ml/gcc/2016-09/msg00107.html, there are a
number of failures in different tests in the tree-prof directory when make
check is run in parallel (e.g., with -j8) none of which are reproducible with
-j1. For example:
Serial make check passes:
$ make -C /build/gcc-49905 check-c RUNTESTFLAGS='tree-prof.exp'
...
=== gcc Summary ===
# of expected passes 307
# of unsupported tests 48
/build/gcc-49905/gcc/xgcc version 7.0.0 20160920 (experimental) (GCC)
Parallel make check fails a bunch of different tests each time
it's run:
$ make -C /build/gcc-49905 -j80 -k check-c RUNTESTFLAGS='tree-prof.exp' 2>&1 |
grep FAIL
FAIL: gcc.dg/tree-prof/peel-1.c execution, -g
FAIL: gcc.dg/tree-prof/update-tailcall.c execution, -g
FAIL: gcc.dg/tree-prof/cold_partition_label.c execution, -g
FAIL: gcc.dg/tree-prof/val-prof-1.c execution, -g
FAIL: gcc.dg/tree-prof/pr45354.c execution, -g
FAIL: gcc.dg/tree-prof/val-prof-2.c execution, -g
FAIL: gcc.dg/tree-prof/crossmodule-indircall-1.c execution, -g
FAIL: gcc.dg/tree-prof/crossmodule-indircall-1a.c execution, -g
FAIL: gcc.dg/tree-prof/pr52027.c execution, -g
FAIL: gcc.dg/tree-prof/20041218-1.c execution, -g
and again:
$ nice make -C /build/gcc-49905 -j80 -k check-c RUNTESTFLAGS='tree-prof.exp'
2>&1 | grep FAIL
FAIL: gcc.dg/tree-prof/bb-reorg.c execution, -g
FAIL: gcc.dg/tree-prof/prof-robust-1.c execution, -g
FAIL: gcc.dg/tree-prof/update-loopch.c execution, -g
FAIL: gcc.dg/tree-prof/crossmodule-indircall-1a.c execution, -g
FAIL: gcc.dg/tree-prof/switch-case-2.c execution, -g
FAIL: gcc.dg/tree-prof/ic-misattribution-1.c execution, -g
FAIL: gcc.dg/tree-prof/tracer-1.c execution, -g
