diff options
Diffstat (limited to 'gcc/coverage.c')
| -rw-r--r-- | gcc/coverage.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/coverage.c b/gcc/coverage.c index 7c395f4..9b664cf 100644 --- a/gcc/coverage.c +++ b/gcc/coverage.c @@ -539,6 +539,28 @@ coverage_compute_lineno_checksum (void) return chksum; } +/* Compute profile ID. This is better to be unique in whole program. */ + +unsigned +coverage_compute_profile_id (struct cgraph_node *n) +{ + expanded_location xloc + = expand_location (DECL_SOURCE_LOCATION (n->symbol.decl)); + unsigned chksum = xloc.line; + + chksum = coverage_checksum_string (chksum, xloc.file); + chksum = coverage_checksum_string + (chksum, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (n->symbol.decl))); + if (first_global_object_name) + chksum = coverage_checksum_string + (chksum, first_global_object_name); + chksum = coverage_checksum_string + (chksum, aux_base_name); + + /* Non-negative integers are hopefully small enough to fit in all targets. */ + return chksum & 0x7fffffff; +} + /* Compute cfg checksum for the current function. The checksum is calculated carefully so that source code changes that doesn't affect the control flow graph |