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      1 Tests for overflow when merging sampled profiles.
      2 
      3 1- Merge profile having maximum counts with itself and verify overflow detected
      4 RUN: llvm-profdata merge -sample %p/Inputs/overflow-sample.proftext %p/Inputs/overflow-sample.proftext -o %t.out 2>&1 | FileCheck %s -check-prefix=MERGE_OVERFLOW
      5 RUN: llvm-profdata show -sample %t.out | FileCheck %s --check-prefix=SHOW_OVERFLOW
      6 MERGE_OVERFLOW: {{.*}}: main: Counter overflow
      7 SHOW_OVERFLOW: Function: main: 2000, 0, 2 sampled lines
      8 SHOW_OVERFLOW-NEXT: Samples collected in the function's body {
      9 SHOW_OVERFLOW-NEXT:   1: 1000, calls: _Z3bari:18446744073709551615
     10 SHOW_OVERFLOW-NEXT:   2: 1000, calls: _Z3fooi:18446744073709551615
     11 SHOW_OVERFLOW-NEXT: }
     12 SHOW_OVERFLOW-NEXT: No inlined callsites in this function
     13 SHOW_OVERFLOW-NEXT: Function: _Z3fooi: 18446744073709551615, 2000, 1 sampled lines
     14 SHOW_OVERFLOW-NEXT: Samples collected in the function's body {
     15 SHOW_OVERFLOW-NEXT:   1: 18446744073709551615
     16 SHOW_OVERFLOW-NEXT: }
     17 SHOW_OVERFLOW-NEXT: No inlined callsites in this function
     18 SHOW_OVERFLOW-NEXT: Function: _Z3bari: 18446744073709551615, 2000, 1 sampled lines
     19 SHOW_OVERFLOW-NEXT: Samples collected in the function's body {
     20 SHOW_OVERFLOW-NEXT:   1: 18446744073709551615
     21 SHOW_OVERFLOW-NEXT: }
     22 SHOW_OVERFLOW-NEXT: No inlined callsites in this function
     23 
     24 2- Merge profile having maximum counts by itself and verify no overflow
     25 RUN: llvm-profdata merge -sample %p/Inputs/overflow-sample.proftext -o %t.out 2>&1 | FileCheck %s -allow-empty -check-prefix=MERGE_NO_OVERFLOW
     26 RUN: llvm-profdata show -sample %t.out | FileCheck %s --check-prefix=SHOW_NO_OVERFLOW
     27 MERGE_NO_OVERFLOW-NOT: {{.*}}: main: Counter overflow
     28 SHOW_NO_OVERFLOW: Function: main: 1000, 0, 2 sampled lines
     29 SHOW_NO_OVERFLOW-NEXT: Samples collected in the function's body {
     30 SHOW_NO_OVERFLOW-NEXT:   1: 500, calls: _Z3bari:18446744073709551615
     31 SHOW_NO_OVERFLOW-NEXT:   2: 500, calls: _Z3fooi:18446744073709551615
     32 SHOW_NO_OVERFLOW-NEXT: }
     33 SHOW_NO_OVERFLOW-NEXT: No inlined callsites in this function
     34 SHOW_NO_OVERFLOW-NEXT: Function: _Z3fooi: 18446744073709551615, 1000, 1 sampled lines
     35 SHOW_NO_OVERFLOW-NEXT: Samples collected in the function's body {
     36 SHOW_NO_OVERFLOW-NEXT:   1: 18446744073709551615
     37 SHOW_NO_OVERFLOW-NEXT: }
     38 SHOW_NO_OVERFLOW-NEXT: No inlined callsites in this function
     39 SHOW_NO_OVERFLOW-NEXT: Function: _Z3bari: 18446744073709551615, 1000, 1 sampled lines
     40 SHOW_NO_OVERFLOW-NEXT: Samples collected in the function's body {
     41 SHOW_NO_OVERFLOW-NEXT:   1: 18446744073709551615
     42 SHOW_NO_OVERFLOW-NEXT: }
     43 SHOW_NO_OVERFLOW-NEXT: No inlined callsites in this function
     44