| 1 | // Tests for -fprofile-generate and -fprofile-use flag compatibility. These two |
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| 2 | // flags behave similarly to their GCC counterparts: |
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| 3 | // |
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| 4 | // -fprofile-generate Generates the profile file ./default.profraw |
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| 5 | // -fprofile-generate=<dir> Generates the profile file <dir>/default.profraw |
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| 6 | // -fprofile-use Uses the profile file ./default.profdata |
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| 7 | // -fprofile-use=<dir> Uses the profile file <dir>/default.profdata |
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| 8 | // -fprofile-use=<dir>/file Uses the profile file <dir>/file |
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| 9 | |
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| 10 | // RUN: %clang %s -c -S -o - -emit-llvm -fprofile-generate | FileCheck -check-prefix=PROFILE-GEN %s |
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| 11 | // PROFILE-GEN: __llvm_profile_filename |
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| 12 | |
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| 13 | // Check that -fprofile-generate=/path/to generates /path/to/default.profraw |
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| 14 | // RUN: %clang %s -c -S -o - -emit-llvm -fprofile-generate=/path/to | FileCheck -check-prefix=PROFILE-GEN-EQ %s |
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| 15 | // PROFILE-GEN-EQ: constant [{{.*}} x i8] c"/path/to{{/|\\5C}}{{.*}}\00" |
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| 16 | |
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| 17 | // Check that -fprofile-use=some/path reads some/path/default.profdata |
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| 18 | // RUN: rm -rf %t.dir |
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| 19 | // RUN: mkdir -p %t.dir/some/path |
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| 20 | // RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility.proftext -o %t.dir/some/path/default.profdata |
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| 21 | // RUN: %clang %s -o - -Xclang -disable-llvm-passes -emit-llvm -S -fprofile-use=%t.dir/some/path | FileCheck -check-prefix=PROFILE-USE-2 %s |
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| 22 | // PROFILE-USE-2: = !{!"branch_weights", i32 101, i32 2} |
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| 23 | |
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| 24 | // Check that -fprofile-use=some/path/file.prof reads some/path/file.prof |
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| 25 | // RUN: rm -rf %t.dir |
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| 26 | // RUN: mkdir -p %t.dir/some/path |
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| 27 | // RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility.proftext -o %t.dir/some/path/file.prof |
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| 28 | // 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 |
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| 29 | // PROFILE-USE-3: = !{!"branch_weights", i32 101, i32 2} |
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| 30 | |
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| 31 | int X = 0; |
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| 32 | |
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| 33 | int main() { |
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| 34 | int i; |
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| 35 | for (i = 0; i < 100; i++) |
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| 36 | X += i; |
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| 37 | return 0; |
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| 38 | } |
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| 39 | |
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