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

[madanial]

Summary

Commit: https://reviews.llvm.org/D104803 requires -flto for -fprofile-generate. This causes the current gcc-flag-compatibility.c testcase to fail on AIX. This patch XFAILS the current test case on AIX and adds another testcase that targets AIX specifically with the -flto option.

[Whitney]

clang/test/Profile/gcc-flag-compatibility.c

10

Add in the comment that gcc-flag-compatibility-aix.c is used to do the testing on AIX.

[madanial]

Adding comment in gcc-flag-compatibility.c indicating that testing for AIX is done in gcc-flag-compatibility-aix.c as suggested

[madanial]

I need some help to commit this change as I do not have commit access as of now.

[Whitney]

In D106815#2926363, @madanial wrote:

I need some help to commit this change as I do not have commit access as of now.

I will commit it for you today.

clang/test/Profile/gcc-flag-compatibility-aix.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 -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
+// 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 -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 -fprofile-generate=/path/to -fexperimental-new-pass-manager | FileCheck -check-prefixes=PROFILE-GEN,PROFILE-GEN-EQ %s
+// 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

clang/test/Profile/gcc-flag-compatibility.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
 
+// 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
 // PROFILE-GEN: @__profd_main =
 
 // Check that -fprofile-generate=/path/to generates /path/to/default.profraw
 // RUN: %clang %s -c -S -o - -emit-llvm -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 -fprofile-generate=/path/to -fexperimental-new-pass-manager | FileCheck -check-prefixes=PROFILE-GEN,PROFILE-GEN-EQ %s