https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88714
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
In armv7hl --enable-checking=release profiledbootstrap I see:
checking for strtoull... ../../libdecnumber/decNumber.c: In function 'decLnOp':
../../libdecnumber/decNumber.c:5581:13: error: number of counters in profile
data for function 'decLnOp' does not match its profile data (counter 'arcs',
expected 54 and have 55) [-Werror=coverage-mismatch]
5581 | decNumber * decLnOp(decNumber *res, const decNumber *rhs,
| ^~~~~~~
../../libdecnumber/decNumber.c:5581:13: error: the control flow of function
'decLnOp' does not match its profile data (counter 'time_profiler')
[-Werror=coverage-mismatch]
../../libdecnumber/decNumber.c: In function 'decExpOp':
../../libdecnumber/decNumber.c:5221:13: error: number of counters in profile
data for function 'decExpOp' does not match its profile data (counter 'arcs',
expected 52 and have 53) [-Werror=coverage-mismatch]
5221 | decNumber * decExpOp(decNumber *res, const decNumber *rhs,
| ^~~~~~~~
../../libdecnumber/decNumber.c:5221:13: error: the control flow of function
'decExpOp' does not match its profile data (counter 'time_profiler')
[-Werror=coverage-mismatch]
../../libdecnumber/decNumber.c: In function 'decMultiplyOp':
../../libdecnumber/decNumber.c:4831:20: error: number of counters in profile
data for function 'decMultiplyOp' does not match its profile data (counter
'arcs', expected 43 and have 46) [-Werror=coverage-mismatch]
4831 | static decNumber * decMultiplyOp(decNumber *res, const decNumber *lhs,
| ^~~~~~~~~~~~~
../../libdecnumber/decNumber.c:4831:20: error: the control flow of function
'decMultiplyOp' does not match its profile data (counter 'time_profiler')
[-Werror=coverage-mismatch]
../../libdecnumber/decNumber.c: In function 'decDivideOp':
../../libdecnumber/decNumber.c:4211:20: error: number of counters in profile
data for function 'decDivideOp' does not match its profile data (counter
'arcs', expected 111 and have 113) [-Werror=coverage-mismatch]
4211 | static decNumber * decDivideOp(decNumber *res,
| ^~~~~~~~~~~
../../libdecnumber/decNumber.c:4211:20: error: the control flow of function
'decDivideOp' does not match its profile data (counter 'single')
[-Werror=coverage-mismatch]
../../libdecnumber/decNumber.c:4211:20: error: the control flow of function
'decDivideOp' does not match its profile data (counter 'time_profiler')
[-Werror=coverage-mismatch]
../../libdecnumber/decNumber.c: In function 'decNumberSquareRoot':
../../libdecnumber/decNumber.c:2797:13: error: number of counters in profile
data for function 'decNumberSquareRoot' does not match its profile data
(counter 'arcs', expected 64 and have 65) [-Werror=coverage-mismatch]
2797 | decNumber * decNumberSquareRoot(decNumber *res, const decNumber *rhs,
| ^~~~~~~~~~~~~~~~~~~
../../libdecnumber/decNumber.c:2797:13: error: the control flow of function
'decNumberSquareRoot' does not match its profile data (counter 'time_profiler')
[-Werror=coverage-mismatch]
which might be related, if one stage generates starting with PRE slightly
different code from the other stage, then the profile mismatches would make a
lot of sense.
