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| author | Brian Gesiak <modocache@gmail.com> | 2017-06-30 23:14:53 +0000 |
|---|---|---|
| committer | Brian Gesiak <modocache@gmail.com> | 2017-06-30 23:14:53 +0000 |
| commit | 4ef3daafef7c53d03bd221a323d34ae2cd47d14d (patch) | |
| tree | 4fad026658b6f904209da704a666f75f6a0ca41a /llvm/test/Transforms | |
| parent | 4fcfc19976c9abfb98008f67c973b99376580121 (diff) | |
| download | bcm5719-llvm-4ef3daafef7c53d03bd221a323d34ae2cd47d14d.tar.gz bcm5719-llvm-4ef3daafef7c53d03bd221a323d34ae2cd47d14d.zip | |
[ORE] Add diagnostics hotness threshold
Summary:
Add an option to prevent diagnostics that do not meet a minimum hotness
threshold from being output. When generating optimization remarks for
large codebases with a ton of cold code paths, this option can be used
to limit the optimization remark output at a reasonable size. Discussion of
this change can be read here:
http://lists.llvm.org/pipermail/llvm-dev/2017-June/114377.html
Reviewers: anemet, davidxl, hfinkel
Reviewed By: anemet
Subscribers: qcolombet, javed.absar, fhahn, eraman, llvm-commits
Differential Revision: https://reviews.llvm.org/D34867
llvm-svn: 306912
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/Inline/optimization-remarks-yaml.ll | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/llvm/test/Transforms/Inline/optimization-remarks-yaml.ll b/llvm/test/Transforms/Inline/optimization-remarks-yaml.ll index 532e443e217..16783634484 100644 --- a/llvm/test/Transforms/Inline/optimization-remarks-yaml.ll +++ b/llvm/test/Transforms/Inline/optimization-remarks-yaml.ll @@ -1,8 +1,21 @@ -; RUN: opt < %s -S -inline -pass-remarks-missed=inline -pass-remarks-with-hotness \ +; RUN: opt < %s -S -inline -pass-remarks-missed=inline \ +; RUN: -pass-remarks-with-hotness -pass-remarks-hotness-threshold 15 \ ; RUN: -pass-remarks-output=%t 2>&1 | FileCheck %s ; RUN: cat %t | FileCheck -check-prefix=YAML %s ; RUN: opt < %s -S -inline -pass-remarks-with-hotness -pass-remarks-output=%t ; RUN: cat %t | FileCheck -check-prefix=YAML %s +; +; Verify that remarks that don't meet the hotness threshold are not output. +; RUN: opt < %s -S -inline -pass-remarks-missed=inline \ +; RUN: -pass-remarks-with-hotness -pass-remarks-hotness-threshold 100 \ +; RUN: -pass-remarks-output=%t.threshold 2>&1 | \ +; RUN: FileCheck -check-prefix=THRESHOLD %s +; RUN: test ! -s %t.threshold +; RUN: opt < %s -S -inline \ +; RUN: -pass-remarks-with-hotness -pass-remarks-hotness-threshold 100 \ +; RUN: -pass-remarks-output=%t.threshold +; The remarks output file should be empty. +; RUN: test ! -s %t.threshold ; Check the YAML file generated for inliner remarks for this program: ; @@ -43,6 +56,9 @@ ; YAML-NEXT: - String: ' because its definition is unavailable' ; YAML-NEXT: ... +; No remarks should be output, since none meet the threshold. +; THRESHOLD-NOT: remark + ; ModuleID = '/tmp/s.c' source_filename = "/tmp/s.c" target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
