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Debug variables that are marked 'implicit' on its `debug_value` instruction mean that they were generated by compiler. Optimizers are free to remove them (if it becomes a dead code, for instance) even in -Onone. Since they are barely used by users and keeping them might lead to incorrect IRGen results.
13 lines
510 B
Swift
13 lines
510 B
Swift
// RUN: %target-swift-frontend -emit-sil -g %s -o %t.sil
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// RUN: %FileCheck %s --input-file=%t.sil
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// Test the SILParser / SILPrinter
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// RUN: %target-swift-frontend -module-name ImplicitVar -emit-sil -g %t.sil | %FileCheck %s
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struct MyStruct {
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// Check if the 'implicit' directive for `self` is properly generated (and parsed)
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// CHECK: sil {{.*}} @{{.*}}MyStructV5hello
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// CHECK: debug_value %0 : $MyStruct
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// CHECK-SAME: let, name "self", argno 1, implicit, loc
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func hello() {}
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}
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