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The coverage format version we use is automatically set to whatever the latest version LLVM has. This resulting in us outputting version 6 as our format without having made the changes necessary to reflect the new format. Update the emission logic to take account for [the new changes in version 6][1] (we need to include the current working directory as the first element of the list of files we output). Additionally, add a `static_assert` so we don't get caught out by version bumps in the future. Note we can't pin our version, as it must stay in sync with the version Clang is using. [1]: https://llvm.org/docs/CoverageMappingFormat.html#llvm-ir-representation
26 lines
1.1 KiB
Swift
26 lines
1.1 KiB
Swift
// REQUIRES: profile_runtime
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// REQUIRES: executable_test
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// REQUIRES: OS=macosx
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// This test is to make sure llvm-cov can deal with a coverage-prefix-map.
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// To make sure this test is resilient to directory changes, we create nested directories inside of the
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// temporary test directory and assert those exist, or don't exist, in the emitted ir
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//
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// RUN: %empty-directory(%t)
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// RUN: mkdir -p %t/root/nested
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// RUN: echo "func coverage() {}" > %t/root/nested/coverage_relative_path.swift
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// RUN: cd %t/root
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// RUN: %target-build-swift -profile-generate -profile-coverage-mapping -Xfrontend -coverage-prefix-map -Xfrontend %/t/root=. -Xfrontend -disable-incremental-llvm-codegen -o %t/main %/t/root/nested/coverage_relative_path.swift
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// This unusual use of 'sh' allows the path of the profraw file to be
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// substituted by %target-run.
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// RUN: %target-codesign %t/main
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// RUN: %target-run sh -c 'env LLVM_PROFILE_FILE=$1 $2' -- %t/default.profraw %t/main
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// RUN: %llvm-profdata merge %t/default.profraw -o %t/default.profdata
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// RUN: %llvm-cov show %t/main -instr-profile=%t/default.profdata | %FileCheck %s
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// CHECK: func coverage
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