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efe143c2f4
Similarly to Clang, the flag enables coverage instrumentation, and links `libLLVMFuzzer.a` to the produced binary. Additionally, this change affects the driver logic, and enables the concurrent usage of multiple sanitizers.
33 lines
2.3 KiB
Swift
33 lines
2.3 KiB
Swift
// XFAIL: linux
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// RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -emit-ir -sanitize=address -sanitize-coverage=func %s | %FileCheck %s -check-prefix=SANCOV
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// RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -emit-ir -sanitize=address -sanitize-coverage=bb %s | %FileCheck %s -check-prefix=SANCOV
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// RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -emit-ir -sanitize=address -sanitize-coverage=edge %s | %FileCheck %s -check-prefix=SANCOV
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// RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -emit-ir -sanitize=fuzzer %s | %FileCheck %s -check-prefix=SANCOV
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// RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -emit-ir -sanitize=address -sanitize-coverage=edge,trace-cmp %s | %FileCheck %s -check-prefix=SANCOV -check-prefix=SANCOV_TRACE_CMP
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// RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -emit-ir -sanitize=address -sanitize-coverage=edge,trace-bb %s | %FileCheck %s -check-prefix=SANCOV -check-prefix=SANCOV_TRACE_BB
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// RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -emit-ir -sanitize=address -sanitize-coverage=edge,indirect-calls %s | %FileCheck %s -check-prefix=SANCOV -check-prefix=SANCOV_INDIRECT_CALLS
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// RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -emit-ir -sanitize=address -sanitize-coverage=edge,8bit-counters %s | %FileCheck %s -check-prefix=SANCOV -check-prefix=SANCOV_8BIT_COUNTERS
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// RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -emit-ir -sanitize=fuzzer %s | %FileCheck %s -check-prefix=SANCOV -check-prefix=SANCOV_TRACE_CMP
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import Darwin
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// FIXME: We should have a reliable way of triggering an indirect call in the
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// LLVM IR generated from this code.
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func test() {
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// Use random numbers so the compiler can't constant fold
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let x = arc4random()
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let y = arc4random()
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// Comparison is to trigger insertion of __sanitizer_cov_trace_cmp
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let z = x == y
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print("\(z)")
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}
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test()
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// FIXME: We need a way to distinguish the different types of coverage instrumentation
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// that isn't really fragile. For now just check there's at least one call to the function
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// used to increment coverage count at a particular PC.
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// SANCOV: call void @__sanitizer_cov
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// SANCOV_TRACE_CMP: call void @__sanitizer_cov_trace_cmp
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