xref: /llvm-project/clang/test/Profile/gcc-flag-compatibility-aix.c (revision 0dd49a5628bbe01cecf6516017da59ae44863ab3)
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)57 int main(void) {
58   int i;
59   for (i = 0; i < 100; i++)
60     X += i;
61   return 0;
62 }
63