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4009814783
Delay the emission of SIL global variables that aren't externally visible until they are actually used. This is the same lazy emission approach that we use for a number of other entities, such as SIL functions. Part of rdar://158363967.
37 lines
1.2 KiB
Swift
37 lines
1.2 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %{python} %utils/split_file.py -o %t %s
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// RUN: %target-swift-frontend -emit-module -o %t/MyModule.swiftmodule %t/MyModule.swift -enable-experimental-feature Embedded -parse-as-library
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// RUN: %target-swift-frontend -emit-ir -I %t %t/Main.swift -enable-experimental-feature Embedded -parse-as-library | %FileCheck %s
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// REQUIRES: swift_in_compiler
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// REQUIRES: swift_feature_Embedded
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// BEGIN MyModule.swift
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public var global_in_module_used_in_module = 0
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public var global_in_module_unused_in_module = 0
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public func foo() {
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global_in_module_used_in_module += 1
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}
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// BEGIN Main.swift
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import MyModule
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public var global_in_client_used_in_client = 0
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public var global_in_client_unused_in_client = 0
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public func main() {
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global_in_module_used_in_module = 42
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global_in_module_unused_in_module = 42
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global_in_client_used_in_client = 42
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foo()
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}
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// CHECK: @"$e4Main022global_in_client_used_c1_D0Sivp" = {{.*}}global %TSi zeroinitializer
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// CHECK: @"$e4Main024global_in_client_unused_c1_D0Sivp" = {{.*}}global %TSi zeroinitializer
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// CHECK: @"$e8MyModule022global_in_module_used_d1_E0Sivp" = {{.*}}global %TSi zeroinitializer
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// CHECK-NOT: @"$e8MyModule024global_in_module_unused_d1_E0Sivp" = {{.*}}global %TSi zeroinitializer
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