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00217aee23
Ensure that LLVM doesn't optimize out a profiler increment before lowering it, ensuring its name gets recorded.
48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
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// rdar://77217762 – The increment_profiler_counter in $foo gets optimized out by
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// LLVM function optimization, but make sure we still emit the name data which
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// is required by the coverage record.
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// Make sure both the legacy and new pass manager work.
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// We need to disable SIL optimizations to ensure LLVM optimizes out the
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// profiler increment.
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// RUN: %target-swift-frontend -emit-ir -profile-generate -profile-coverage-mapping -O -disable-sil-perf-optzns -disable-new-llvm-pass-manager %s | %FileCheck %s
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// RUN: %target-swift-frontend -emit-ir -profile-generate -profile-coverage-mapping -O -disable-sil-perf-optzns -enable-new-llvm-pass-manager %s | %FileCheck %s
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sil_stage canonical
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import Swift
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import Builtin
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// CHECK-DAG: @__covrec
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// CHECK-DAG: @__llvm_coverage_mapping
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// CHECK-DAG: @__llvm_prf_nm
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sil [ossa] @main : $@convention(c) (Int32, UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int8>>>) -> Int32 {
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bb0(%0 : $Int32, %1 : $UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int8>>>):
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%2 = integer_literal $Builtin.Int32, 0
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%3 = struct $Int32 (%2 : $Builtin.Int32)
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return %3 : $Int32
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}
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sil [ossa] @$foo : $@convention(thin) () -> () {
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bb0:
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%1 = integer_literal $Builtin.Int1, 0
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cond_br %1, bb1, bb2
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bb1:
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increment_profiler_counter 0, "$foo", num_counters 1, hash 0
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br bb3
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bb2:
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br bb3
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bb3:
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%10 = tuple ()
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return %10 : $()
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}
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sil_coverage_map "main.swift" "$foo" "$foo" 0 {
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10:6 -> 10:11 : 0
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}
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