416c782cc6
The interaction between `--show-density` and NFC testing wrapper is a bit subtle. ShowDensity is enabled by default in perf2bolt mode, which is detected based on executable name. NFC wrapper however replaces the invocation of perf2bolt with `llvm-bolt --aggregate-only`, and so ShowDensity is not enabled, which caused NFC test to fail: https://lab.llvm.org/buildbot/#/builders/92/builds/18656 Add show-density flag explicitly to work around the issue. Test Plan: ``` ../llvm-project/bolt/utils/nfc-check-setup.py bin/llvm-lit -a tools/bolt/test/perf2bolt/perf_test.test ```
16 lines
782 B
Plaintext
16 lines
782 B
Plaintext
# Check perf2bolt binary function which was compiled with pie
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REQUIRES: system-linux, perf
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RUN: %clang %S/Inputs/perf_test.c -fuse-ld=lld -Wl,--script=%S/Inputs/perf_test.lds -o %t
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RUN: perf record -Fmax -e cycles:u -o %t2 -- %t
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RUN: perf2bolt %t -p=%t2 -o %t3 -nl -ignore-build-id --show-density 2>&1 | FileCheck %s
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CHECK-NOT: PERF2BOLT-ERROR
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CHECK-NOT: !! WARNING !! This high mismatch ratio indicates the input binary is probably not the same binary used during profiling collection.
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CHECK: BOLT-INFO: Functions with density >= {{.*}} account for 99.00% total sample counts.
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RUN: %clang %S/Inputs/perf_test.c -no-pie -fuse-ld=lld -o %t4
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RUN: perf record -Fmax -e cycles:u -o %t5 -- %t4
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RUN: perf2bolt %t4 -p=%t5 -o %t6 -nl -ignore-build-id --show-density 2>&1 | FileCheck %s
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