[llvm] [llvm-profgen] Improve sample profile density (PR #92144)

[via llvm-commits]

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@@ -1,13 +1,16 @@
-; RUN: llvm-profgen --format=text --unsymbolized-profile=%S/Inputs/profile-density.raw.prof --binary=%S/Inputs/inline-noprobe2.perfbin --output=%t1 --use-offset=0 --show-density -hot-function-density-threshold=10  --trim-cold-profile=0 &> %t2
+; RUN: llvm-profgen --format=text --unsymbolized-profile=%S/Inputs/profile-density.raw.prof --binary=%S/Inputs/inline-noprobe2.perfbin --output=%t1 --use-offset=0 --show-density -profile-density-threshold=10  --trim-cold-profile=0 &> %t2
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WenleiHe wrote:

was there no test for suggestion? should we add one? 

https://github.com/llvm/llvm-project/pull/92144