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| author | Brian Gesiak <modocache@gmail.com> | 2017-06-23 02:38:45 +0000 |
|---|---|---|
| committer | Brian Gesiak <modocache@gmail.com> | 2017-06-23 02:38:45 +0000 |
| commit | 742c4c842393005d91a6f805f665b077014d061a (patch) | |
| tree | a2b11befd86b432757097889f165fb5b4bab53a7 /test/Frontend | |
| parent | 516572b01686e96be619f9ae090ca4bb0166cb30 (diff) | |
[Frontend] 'Show hotness' can be used with a sampling profile
Summary:
Prior to this change, using `-fdiagnostics-show-hotness` with a sampling
profile specified via `-fprofile-sample-use=` would result in the Clang
frontend emitting a warning: "argument '-fdiagnostics-show-hotness' requires
profile-guided optimization information". Of course, a sampling profile
*is* profile-guided optimization information, so the warning is misleading.
Furthermore, despite the warning, hotness was displayed based on the data in
the sampling profile.
Prevent the warning from being emitted when a sampling profile is used, and
add a test that verifies this.
Reviewers: anemet, davidxl
Reviewed By: davidxl
Subscribers: danielcdh, cfe-commits
Differential Revision: https://reviews.llvm.org/D34082
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@306079 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Frontend')
| -rw-r--r-- | test/Frontend/Inputs/optimization-remark-with-hotness-sample.proftext | 7 | ||||
| -rw-r--r-- | test/Frontend/optimization-remark-with-hotness.c | 12 |
2 files changed, 18 insertions, 1 deletions
diff --git a/test/Frontend/Inputs/optimization-remark-with-hotness-sample.proftext b/test/Frontend/Inputs/optimization-remark-with-hotness-sample.proftext new file mode 100644 index 0000000000..aeea583de4 --- /dev/null +++ b/test/Frontend/Inputs/optimization-remark-with-hotness-sample.proftext @@ -0,0 +1,7 @@ +foo:0:0 + 0: 0 +bar:29:29 + 6: foo:0 +main:0:0 + 0: 0 bar:0 + diff --git a/test/Frontend/optimization-remark-with-hotness.c b/test/Frontend/optimization-remark-with-hotness.c index 708f5ec8d4..30ead64b8e 100644 --- a/test/Frontend/optimization-remark-with-hotness.c +++ b/test/Frontend/optimization-remark-with-hotness.c @@ -1,11 +1,21 @@ +// Generate instrumentation and sampling profile data. // RUN: llvm-profdata merge \ -// RUN: %S/Inputs/optimization-remark-with-hotness.proftext \ +// RUN: %S/Inputs/optimization-remark-with-hotness.proftext \ // RUN: -o %t.profdata +// RUN: llvm-profdata merge -sample \ +// RUN: %S/Inputs/optimization-remark-with-hotness-sample.proftext \ +// RUN: -o %t-sample.profdata +// // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name \ // RUN: optimization-remark-with-hotness.c %s -emit-llvm-only \ // RUN: -fprofile-instrument-use-path=%t.profdata -Rpass=inline \ // RUN: -Rpass-analysis=inline -Rpass-missed=inline \ // RUN: -fdiagnostics-show-hotness -verify +// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name \ +// RUN: optimization-remark-with-hotness.c %s -emit-llvm-only \ +// RUN: -fprofile-sample-use=%t-sample.profdata -Rpass=inline \ +// RUN: -Rpass-analysis=inline -Rpass-missed=inline \ +// RUN: -fdiagnostics-show-hotness -verify // The clang version of the previous test. // RUN: %clang -target x86_64-apple-macosx10.9 %s -c -emit-llvm -o /dev/null \ // RUN: -fprofile-instr-use=%t.profdata -Rpass=inline \ |