forked from OSchip/llvm-project
39 lines
1.8 KiB
C
39 lines
1.8 KiB
C
// Tests for -fprofile-generate and -fprofile-use flag compatibility. These two
|
|
// flags behave similarly to their GCC counterparts:
|
|
//
|
|
// -fprofile-generate Generates the profile file ./default.profraw
|
|
// -fprofile-generate=<dir> Generates the profile file <dir>/default.profraw
|
|
// -fprofile-use Uses the profile file ./default.profdata
|
|
// -fprofile-use=<dir> Uses the profile file <dir>/default.profdata
|
|
// -fprofile-use=<dir>/file Uses the profile file <dir>/file
|
|
|
|
// RUN: %clang %s -c -S -o - -emit-llvm -fprofile-generate | FileCheck -check-prefix=PROFILE-GEN %s
|
|
// PROFILE-GEN: __llvm_profile_filename
|
|
|
|
// Check that -fprofile-generate=/path/to generates /path/to/default.profraw
|
|
// RUN: %clang %s -c -S -o - -emit-llvm -fprofile-generate=/path/to | FileCheck -check-prefix=PROFILE-GEN-EQ %s
|
|
// PROFILE-GEN-EQ: constant [{{.*}} x i8] c"/path/to{{/|\\5C}}{{.*}}\00"
|
|
|
|
// Check that -fprofile-use=some/path reads some/path/default.profdata
|
|
// RUN: rm -rf %t.dir
|
|
// RUN: mkdir -p %t.dir/some/path
|
|
// RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility.proftext -o %t.dir/some/path/default.profdata
|
|
// RUN: %clang %s -o - -Xclang -disable-llvm-passes -emit-llvm -S -fprofile-use=%t.dir/some/path | FileCheck -check-prefix=PROFILE-USE-2 %s
|
|
// PROFILE-USE-2: = !{!"branch_weights", i32 101, i32 2}
|
|
|
|
// Check that -fprofile-use=some/path/file.prof reads some/path/file.prof
|
|
// RUN: rm -rf %t.dir
|
|
// RUN: mkdir -p %t.dir/some/path
|
|
// RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility.proftext -o %t.dir/some/path/file.prof
|
|
// RUN: %clang %s -o - -Xclang -disable-llvm-passes -emit-llvm -S -fprofile-use=%t.dir/some/path/file.prof | FileCheck -check-prefix=PROFILE-USE-3 %s
|
|
// PROFILE-USE-3: = !{!"branch_weights", i32 101, i32 2}
|
|
|
|
int X = 0;
|
|
|
|
int main() {
|
|
int i;
|
|
for (i = 0; i < 100; i++)
|
|
X += i;
|
|
return 0;
|
|
}
|