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llvm-mirror/test/tools/llvm-profdata/roundtrip.test
Wenlei He 733b0981cf [AutoFDO] Make call targets order deterministic for sample profile
Summary:
StringMap is used for storing call target to frequency map for AutoFDO. However the iterating order of StringMap is non-deterministic, which leads to non-determinism in AutoFDO profile output. Now new API getSortedCallTargets and SortCallTargets are added for deterministic ordering and output.

Roundtrip test for text profile and binary profile is added.

Reviewers: wmi, davidxl, danielcdh

Subscribers: hiraditya, mgrang, llvm-commits, twoh

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66191

llvm-svn: 369440
2019-08-20 20:52:00 +00:00

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RUN: llvm-profdata merge -o %t.0.profdata %S/Inputs/IR_profile.proftext
RUN: llvm-profdata show -o %t.0.proftext -all-functions -text %t.0.profdata
RUN: diff %t.0.proftext %S/Inputs/IR_profile.proftext
RUN: llvm-profdata merge -o %t.1.profdata %t.0.proftext
RUN: llvm-profdata show -o %t.1.proftext -all-functions -text %t.1.profdata
RUN: diff %t.1.proftext %S/Inputs/IR_profile.proftext
RUN: llvm-profdata merge --sample --binary -output=%t.2.profdata %S/Inputs/sample-profile.proftext
RUN: llvm-profdata merge --sample --text -output=%t.2.proftext %t.2.profdata
RUN: diff %t.2.proftext %S/Inputs/sample-profile.proftext