[clang] [compiler-rt] [llvm] [clang-tools-extra] [Profile] Allow profile merging with multiple correlate files. (PR #75957)

[Ellis Hoag via cfe-commits]

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@@ -0,0 +1,33 @@
+// REQUIRES: lld-available
+// Test llvm-profdata merging with multiple correlation files mixing different correlation modes.
+
+// RUN: %clang_pgogen -o %t.normal -mllvm --disable-vp=true %S/../Inputs/instrprof-debug-info-correlate-main.cpp %S/../Inputs/instrprof-debug-info-correlate-foo.cpp
+// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t.normal
+// RUN: llvm-profdata merge -o %t.normal.profdata %t.profraw
+
+// Compiling with differnt configs.
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ellishg wrote:

```suggestion
// Compiling with different configs.
```

https://github.com/llvm/llvm-project/pull/75957