1 // Tests for -fprofile-generate and -fprofile-use flag compatibility. These two 2 // flags behave similarly to their GCC counterparts: 3 // 4 // -fprofile-generate Generates the profile file ./default.profraw 5 // -fprofile-generate=<dir> Generates the profile file <dir>/default.profraw 6 // -fprofile-use Uses the profile file ./default.profdata 7 // -fprofile-use=<dir> Uses the profile file <dir>/default.profdata 8 // -fprofile-use=<dir>/file Uses the profile file <dir>/file 9 10 // On AIX, -flto used to be required with -fprofile-generate, so test those 11 // extra cases. 12 13 // RUN: %clang %s -c -S -o - -emit-llvm -target powerpc64-unknown-aix -flto -fprofile-generate | FileCheck -check-prefix=PROFILE-GEN %s 14 // PROFILE-GEN: @__profc_main = {{(private|internal)}} global [2 x i64] zeroinitializer, section 15 // PROFILE-GEN: @__profd_main = 16 17 // Check that -fprofile-generate=/path/to generates /path/to/default.profraw 18 // RxUN: %clang %s -c -S -o - -emit-llvm -target powerpc64-unknown-aix -flto -fprofile-generate=/path/to | FileCheck -check-prefixes=PROFILE-GEN,PROFILE-GEN-EQ %s 19 // PROFILE-GEN-EQ: constant [{{.*}} x i8] c"/path/to{{/|\\\\}}{{.*}}\00" 20 21 // Check that -fprofile-use=some/path reads some/path/default.profdata 22 // This uses Clang FE format profile. 23 // RUN: rm -rf %t.dir 24 // RUN: mkdir -p %t.dir/some/path 25 // RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility.proftext -o %t.dir/some/path/default.profdata 26 // RUN: %clang %s -o - -Xclang -disable-llvm-passes -emit-llvm -S -fprofile-use=%t.dir/some/path | FileCheck -check-prefix=PROFILE-USE %s 27 28 // Check that -fprofile-use=some/path/file.prof reads some/path/file.prof 29 // This uses Clang FE format profile. 30 // RUN: rm -rf %t.dir 31 // RUN: mkdir -p %t.dir/some/path 32 // RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility.proftext -o %t.dir/some/path/file.prof 33 // RUN: %clang %s -o - -Xclang -disable-llvm-passes -emit-llvm -S -fprofile-use=%t.dir/some/path/file.prof | FileCheck -check-prefix=PROFILE-USE %s 34 // PROFILE-USE: = !{!"branch_weights", i32 101, i32 2} 35 36 // Check that -fprofile-use=some/path reads some/path/default.profdata 37 // This uses LLVM IR format profile. 38 // RUN: rm -rf %t.dir 39 // RUN: mkdir -p %t.dir/some/path 40 // RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility_IR.proftext -o %t.dir/some/path/default.profdata 41 // RUN: %clang %s -o - -emit-llvm -S -fprofile-use=%t.dir/some/path | FileCheck -check-prefix=PROFILE-USE-IR %s 42 43 // Check that -fprofile-use=some/path/file.prof reads some/path/file.prof 44 // This uses LLVM IR format profile. 45 // RUN: rm -rf %t.dir 46 // RUN: mkdir -p %t.dir/some/path 47 // RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility_IR.proftext -o %t.dir/some/path/file.prof 48 // RUN: %clang %s -o - -emit-llvm -S -fprofile-use=%t.dir/some/path/file.prof | FileCheck -check-prefix=PROFILE-USE-IR %s 49 // 50 // RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility_IR_entry.proftext -o %t.dir/some/path/file.prof 51 // RUN: %clang %s -o - -emit-llvm -S -fprofile-use=%t.dir/some/path/file.prof | FileCheck -check-prefix=PROFILE-USE-IR %s 52 53 // PROFILE-USE-IR: = !{!"branch_weights", i32 100, i32 1} 54 55 int X = 0; 56 main(void)57int main(void) { 58 int i; 59 for (i = 0; i < 100; i++) 60 X += i; 61 return 0; 62 } 63