mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-19 02:52:53 +02:00
648ea4f74f
Summary: Surface counter overflow when merging profile data. Merging still occurs on overflow but counts saturate to the maximum representable value. Overflow is reported to the user. Reviewers: davidxl, dnovillo, silvas Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D15547 llvm-svn: 255825
18 lines
1.1 KiB
Plaintext
18 lines
1.1 KiB
Plaintext
Tests for overflow when merging instrumented profiles.
|
|
|
|
1- Merge profile having maximum counts with itself and verify overflow detected and saturation occurred
|
|
RUN: llvm-profdata merge -instr %p/Inputs/overflow-instr.proftext %p/Inputs/overflow-instr.proftext -o %t.out 2>&1 | FileCheck %s -check-prefix=MERGE_OVERFLOW
|
|
RUN: llvm-profdata show -instr %t.out | FileCheck %s --check-prefix=SHOW_OVERFLOW
|
|
MERGE_OVERFLOW: {{.*}}: overflow: Counter overflow
|
|
SHOW_OVERFLOW: Total functions: 1
|
|
SHOW_OVERFLOW-NEXT: Maximum function count: 18446744073709551615
|
|
SHOW_OVERFLOW-NEXT: Maximum internal block count: 18446744073709551615
|
|
|
|
2- Merge profile having maximum counts by itself and verify no overflow
|
|
RUN: llvm-profdata merge -instr %p/Inputs/overflow-instr.proftext -o %t.out 2>&1 | FileCheck %s -check-prefix=MERGE_NO_OVERFLOW -allow-empty
|
|
RUN: llvm-profdata show -instr %t.out | FileCheck %s --check-prefix=SHOW_NO_OVERFLOW
|
|
MERGE_NO_OVERFLOW-NOT: {{.*}}: overflow: Counter overflow
|
|
SHOW_NO_OVERFLOW: Total functions: 1
|
|
SHOW_NO_OVERFLOW-NEXT: Maximum function count: 18446744073709551615
|
|
SHOW_NO_OVERFLOW-NEXT: Maximum internal block count: 18446744073709551615
|