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a54a8ddaa3
Previously, the lexical attribute on allock_stack instructions was used. This doesn't work for values without lexical lifetimes which are consumed, e.g. stdlib CoW types. Here, the new var_decl attribute on alloc_stack is keyed off of instead. This flag encodes exactly that a value corresponds to a source-level VarDecl, which is the condition under which checking needs to run.
20 lines
770 B
Swift
20 lines
770 B
Swift
// RUN: %target-swift-frontend -enable-copy-propagation=requested-passes-only -enable-lexical-lifetimes=false %s -emit-ir -g -o - | %FileCheck %s
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// RUN: %target-swift-frontend -enable-copy-propagation=requested-passes-only -enable-lexical-lifetimes=false %s -emit-sil -g -o - | %FileCheck -check-prefix=CHECK-SIL %s
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import StdlibUnittest
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// Test that debug info for local variables is preserved by the
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// mandatory SIL optimization passes.
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func main() {
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// CHECK-SIL-DAG: debug_value {{.*}}: $Int, let, name "x"
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// CHECK-DAG: DILocalVariable(name: "x"
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let x = 10
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// CHECK-SIL-DAG: alloc_stack [var_decl] $Int, var, name "y"
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// CHECK-DAG: DILocalVariable(name: "y"
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var y = 10
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// The expression x+y may become constant folded.
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_blackHole(x+y)
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}
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main()
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