[llvm] [BOLT] Add sink block to flow CFG in profile inference (PR #95047)

[Amir Ayupov via llvm-commits]

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+## This verifies that functions where an exit block has a landing pad are covered by stale profile inference.
+# RUN: link_fdata %s %t.exe %t.preagg PREAGG
+# RUN: perf2bolt %t.exe -p %t.preagg --pa -o %t.fdata -w %t.yaml
+# RUN: sed -i 's/0000/0001/g' %t.yaml
+# RUN: sed -i '0,/hash:/s/0x[0-9A-Fa-f]\{16\}/0x0000000000000000/' %t.yaml
+# RUN: llvm-bolt %t.exe -data %t.yaml -o %t.null -v=1 -infer-stale-profile 2>&1 \
+# RUN:   | FileCheck %s
+
+# PREAGG: B X:0 #main# 1 0
+
+# CHECK: BOLT-INFO
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aaupov wrote:

Please clean up this line.

https://github.com/llvm/llvm-project/pull/95047