https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78069
Bug ID: 78069 Summary: [7 Regression] -fprofile-update=atomic warning Product: gcc Version: 7.0 Status: UNCONFIRMED Keywords: diagnostic Severity: normal Priority: P3 Component: regression Assignee: unassigned at gcc dot gnu.org Reporter: dje at gcc dot gnu.org CC: marxin at gcc dot gnu.org Target Milestone: --- Target: powerpc-ibm-aix* GCC now warns for -fprofile-update=atomic + -pthread on targets where atomic update of profile variables is not supported -- 64 bit gcov counter in 32 bit mode / target. This creates a huge amount of noise from unnecessary warnings and failures on profiling tests in the testsuite.