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Update: clang/test/Profile/gcc-flag-compatibility.c to have -flto on AIX
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Reviewed By: Whitney

Differential Revision: https://reviews.llvm.org/D106815
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@madanial0
madanial0 authored and Whitney Tsang committed Aug 9, 2021
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68 changes: 68 additions & 0 deletions clang/test/Profile/gcc-flag-compatibility-aix.c
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// 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

// On AIX, -flto is required with -fprofile-generate

// RUN: %clang %s -c -S -o - -emit-llvm -target powerpc64-unknown-aix -flto -fprofile-generate -fno-experimental-new-pass-manager | FileCheck -check-prefix=PROFILE-GEN %s
// RUN: %clang %s -c -S -o - -emit-llvm -target powerpc64-unknown-aix -flto -fprofile-generate -fexperimental-new-pass-manager | FileCheck -check-prefix=PROFILE-GEN %s
// PROFILE-GEN: @__profc_main = {{(private|internal)}} global [2 x i64] zeroinitializer, section
// PROFILE-GEN: @__profd_main =

// Check that -fprofile-generate=/path/to generates /path/to/default.profraw
// RUN: %clang %s -c -S -o - -emit-llvm -target powerpc64-unknown-aix -flto -fprofile-generate=/path/to -fno-experimental-new-pass-manager | FileCheck -check-prefixes=PROFILE-GEN,PROFILE-GEN-EQ %s
// RxUN: %clang %s -c -S -o - -emit-llvm -target powerpc64-unknown-aix -flto -fprofile-generate=/path/to -fexperimental-new-pass-manager | FileCheck -check-prefixes=PROFILE-GEN,PROFILE-GEN-EQ %s
// PROFILE-GEN-EQ: constant [{{.*}} x i8] c"/path/to{{/|\\\\}}{{.*}}\00"

// Check that -fprofile-use=some/path reads some/path/default.profdata
// This uses Clang FE format profile.
// 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 -fno-experimental-new-pass-manager | FileCheck -check-prefix=PROFILE-USE %s
// RUN: %clang %s -o - -Xclang -disable-llvm-passes -emit-llvm -S -fprofile-use=%t.dir/some/path -fexperimental-new-pass-manager | FileCheck -check-prefix=PROFILE-USE %s

// Check that -fprofile-use=some/path/file.prof reads some/path/file.prof
// This uses Clang FE format profile.
// 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 -fno-experimental-new-pass-manager | FileCheck -check-prefix=PROFILE-USE %s
// RUN: %clang %s -o - -Xclang -disable-llvm-passes -emit-llvm -S -fprofile-use=%t.dir/some/path/file.prof -fexperimental-new-pass-manager | FileCheck -check-prefix=PROFILE-USE %s
// PROFILE-USE: = !{!"branch_weights", i32 101, i32 2}

// Check that -fprofile-use=some/path reads some/path/default.profdata
// This uses LLVM IR format profile.
// RUN: rm -rf %t.dir
// RUN: mkdir -p %t.dir/some/path
// RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility_IR.proftext -o %t.dir/some/path/default.profdata
// RUN: %clang %s -o - -emit-llvm -S -fprofile-use=%t.dir/some/path -fno-experimental-new-pass-manager | FileCheck -check-prefix=PROFILE-USE-IR %s
// RUN: %clang %s -o - -emit-llvm -S -fprofile-use=%t.dir/some/path -fexperimental-new-pass-manager | FileCheck -check-prefix=PROFILE-USE-IR %s

// Check that -fprofile-use=some/path/file.prof reads some/path/file.prof
// This uses LLVM IR format profile.
// RUN: rm -rf %t.dir
// RUN: mkdir -p %t.dir/some/path
// RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility_IR.proftext -o %t.dir/some/path/file.prof
// RUN: %clang %s -o - -emit-llvm -S -fprofile-use=%t.dir/some/path/file.prof -fno-experimental-new-pass-manager | FileCheck -check-prefix=PROFILE-USE-IR %s
// RUN: %clang %s -o - -emit-llvm -S -fprofile-use=%t.dir/some/path/file.prof -fexperimental-new-pass-manager | FileCheck -check-prefix=PROFILE-USE-IR %s
//
// RUN: llvm-profdata merge %S/Inputs/gcc-flag-compatibility_IR_entry.proftext -o %t.dir/some/path/file.prof
// RUN: %clang %s -o - -emit-llvm -S -fprofile-use=%t.dir/some/path/file.prof -fno-experimental-new-pass-manager | FileCheck -check-prefix=PROFILE-USE-IR %s
// RUN: %clang %s -o - -emit-llvm -S -fprofile-use=%t.dir/some/path/file.prof -fexperimental-new-pass-manager | FileCheck -check-prefix=PROFILE-USE-IR %s

// PROFILE-USE-IR: = !{!"branch_weights", i32 100, i32 1}

int X = 0;

int main() {
int i;
for (i = 0; i < 100; i++)
X += i;
return 0;
}
2 changes: 2 additions & 0 deletions clang/test/Profile/gcc-flag-compatibility.c
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Expand Up @@ -7,6 +7,8 @@
// -fprofile-use=<dir> Uses the profile file <dir>/default.profdata
// -fprofile-use=<dir>/file Uses the profile file <dir>/file

// On AIX, -flto is required with -fprofile-generate. gcc-flag-compatibility-aix.c is used to do the testing on AIX with -flto
// XFAIL: aix
// RUN: %clang %s -c -S -o - -emit-llvm -fprofile-generate -fno-experimental-new-pass-manager | FileCheck -check-prefix=PROFILE-GEN %s
// RUN: %clang %s -c -S -o - -emit-llvm -fprofile-generate -fexperimental-new-pass-manager | FileCheck -check-prefix=PROFILE-GEN %s
// PROFILE-GEN: @__profc_main = {{(private|internal)}} global [2 x i64] zeroinitializer, section
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