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| author | Dehao Chen <dehao@google.com> | 2017-08-24 21:37:33 +0000 |
|---|---|---|
| committer | Dehao Chen <dehao@google.com> | 2017-08-24 21:37:33 +0000 |
| commit | 9619ec9a5eb42ebc8f71c933a919df08dfd90f86 (patch) | |
| tree | a7680df770d84e12a03a54cb4c907d72bc0b3e3c /test/Integration | |
| parent | 9448f422a1cf7f06fc904bc2d74dbbed5bfe6972 (diff) | |
Expose -mllvm -accurate-sample-profile to clang.
Summary: With accurate sample profile, we can do more aggressive size optimization. For some size-critical application, this can reduce the text size by 20%
Reviewers: davidxl, rsmith
Reviewed By: davidxl, rsmith
Subscribers: mehdi_amini, eraman, sanjoy, cfe-commits
Differential Revision: https://reviews.llvm.org/D37091
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@311707 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Integration')
| -rw-r--r-- | test/Integration/thinlto_profile_sample_accurate.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/test/Integration/thinlto_profile_sample_accurate.c b/test/Integration/thinlto_profile_sample_accurate.c new file mode 100644 index 0000000000..d7966c215c --- /dev/null +++ b/test/Integration/thinlto_profile_sample_accurate.c @@ -0,0 +1,9 @@ +// Test to ensure -emit-llvm profile-sample-accurate is honored in ThinLTO. +// RUN: %clang -O2 %s -flto=thin -fprofile-sample-accurate -c -o %t.o +// RUN: llvm-lto -thinlto -o %t %t.o +// RUN: %clang_cc1 -O2 -x ir %t.o -fthinlto-index=%t.thinlto.bc -emit-llvm -o - | FileCheck %s + +// CHECK: define void @foo() +// CHECK: attributes {{.*}} "profile-sample-accurate" +void foo() { +} |