llvm-6502/test/tools/llvm-profdata/sample-profile-basic.test
Diego Novillo 9657de5f22 Add show and merge tools for sample PGO profiles.
Summary:
This patch extends the 'show' and 'merge' commands in llvm-profdata to handle
sample PGO formats. Using the 'merge' command it is now possible to convert
one sample PGO format to another.

The only format that is currently not working is 'gcc'. I still need to
implement support for it in lib/ProfileData.

The changes in the sample profile support classes are needed for the
merge operation.

Reviewers: bogner

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6065

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221032 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-01 00:56:55 +00:00

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Basic tests for sample profiles.
1- Show all functions
RUN: llvm-profdata show --sample %p/Inputs/sample-profile.proftext | FileCheck %s --check-prefix=SHOW1
SHOW1: Function: main: 184019, 0, 7 sampled lines
SHOW1: line offset: 9, discriminator: 0, number of samples: 2064, calls: _Z3fooi:631 _Z3bari:1471
SHOW1: Function: _Z3fooi: 7711, 610, 1 sampled lines
SHOW1: Function: _Z3bari: 20301, 1437, 1 sampled lines
SHOW1: line offset: 1, discriminator: 0, number of samples: 1437
2- Show only bar
RUN: llvm-profdata show --sample --function=_Z3bari %p/Inputs/sample-profile.proftext | FileCheck %s --check-prefix=SHOW2
SHOW2: Function: _Z3bari: 20301, 1437, 1 sampled lines
SHOW2: line offset: 1, discriminator: 0, number of samples: 1437
SHOW2-NOT: Function: main: 184019, 0, 7 sampled lines
SHOW2-NOT: Function: _Z3fooi: 7711, 610, 1 sampled lines
3- Convert the profile to binary encoding and check that they are both
identical.
RUN: llvm-profdata merge --sample %p/Inputs/sample-profile.proftext --binary -o - | llvm-profdata show --sample - -o %t-binary
RUN: llvm-profdata show --sample %p/Inputs/sample-profile.proftext -o %t-text
RUN: diff %t-binary %t-text
4- Merge the binary and text encodings of the profile and check that the
counters have doubled.
RUN: llvm-profdata merge --sample %p/Inputs/sample-profile.proftext -o %t-binprof
RUN: llvm-profdata merge --sample --text %p/Inputs/sample-profile.proftext %t-binprof -o - | FileCheck %s --check-prefix=MERGE1
MERGE1: main:368038:0
MERGE1: 9: 4128 _Z3fooi:1262 _Z3bari:2942
MERGE1: _Z3fooi:15422:1220