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923b9a6201
Previously we treated the * platform as checking for the minimum deployment target, but that's definitely unnecessary. There is a bit of a hack here to avoid diagnosing the 'else' branch as unreachable: if a constant true/false came from #available, ignore it.
84 lines
3.2 KiB
Swift
84 lines
3.2 KiB
Swift
// RUN: %target-swift-frontend -emit-sil %s -target x86_64-apple-macosx10.50 -verify
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// RUN: %target-swift-frontend -emit-silgen %s -target x86_64-apple-macosx10.50 | FileCheck %s
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// REQUIRES: OS=macosx
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// CHECK-LABEL: sil{{.+}}@main{{.*}} {
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// CHECK: [[MAJOR:%.*]] = integer_literal $Builtin.Word, 10
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// CHECK: [[MINOR:%.*]] = integer_literal $Builtin.Word, 53
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// CHECK: [[PATCH:%.*]] = integer_literal $Builtin.Word, 8
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// CHECK: [[FUNC:%.*]] = function_ref @_TFs26_stdlib_isOSVersionAtLeastFTBwBwBw_Bi1_ : $@convention(thin) (Builtin.Word, Builtin.Word, Builtin.Word) -> Builtin.Int1
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// CHECK: [[QUERY_RESULT:%.*]] = apply [[FUNC]]([[MAJOR]], [[MINOR]], [[PATCH]]) : $@convention(thin) (Builtin.Word, Builtin.Word, Builtin.Word) -> Builtin.Int1
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if #available(OSX 10.53.8, iOS 7.1, *) {
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}
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// CHECK: [[TRUE:%.*]] = integer_literal $Builtin.Int1, -1
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// CHECK: cond_br [[TRUE]]
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// Since we are compiling for an unmentioned platform (OS X), we check against the minimum
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// deployment target, which is 10.50
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if #available(iOS 7.1, *) {
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}
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// CHECK: [[MAJOR:%.*]] = integer_literal $Builtin.Word, 10
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// CHECK: [[MINOR:%.*]] = integer_literal $Builtin.Word, 52
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// CHECK: [[PATCH:%.*]] = integer_literal $Builtin.Word, 0
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// CHECK: [[QUERY_FUNC:%.*]] = function_ref @_TFs26_stdlib_isOSVersionAtLeastFTBwBwBw_Bi1_ : $@convention(thin) (Builtin.Word, Builtin.Word, Builtin.Word) -> Builtin.Int1
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// CHECK: [[QUERY_RESULT:%.*]] = apply [[QUERY_FUNC]]([[MAJOR]], [[MINOR]], [[PATCH]]) : $@convention(thin) (Builtin.Word, Builtin.Word, Builtin.Word) -> Builtin.Int1
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if #available(OSX 10.52, *) {
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}
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// CHECK: [[MAJOR:%.*]] = integer_literal $Builtin.Word, 10
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// CHECK: [[MINOR:%.*]] = integer_literal $Builtin.Word, 0
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// CHECK: [[PATCH:%.*]] = integer_literal $Builtin.Word, 0
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// CHECK: [[QUERY_FUNC:%.*]] = function_ref @_TFs26_stdlib_isOSVersionAtLeastFTBwBwBw_Bi1_ : $@convention(thin) (Builtin.Word, Builtin.Word, Builtin.Word) -> Builtin.Int1
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// CHECK: [[QUERY_RESULT:%.*]] = apply [[QUERY_FUNC]]([[MAJOR]], [[MINOR]], [[PATCH]]) : $@convention(thin) (Builtin.Word, Builtin.Word, Builtin.Word) -> Builtin.Int1
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if #available(OSX 10, *) { // expected-warning {{minimum deployment target ensures guard will always be true}}
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}
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// CHECK: }
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func doThing() {}
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func testUnreachableVersionAvailable(condition: Bool) {
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if #available(OSX 10.0, *) { // expected-warning {{minimum deployment target ensures guard will always be true}}
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doThing() // no-warning
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return
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} else {
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doThing() // FIXME-warning {{will never be executed}}
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}
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if true {
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doThing() // no-warning
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}
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if false { // expected-note {{condition always evaluates to false}}
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doThing() // expected-warning {{will never be executed}}
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}
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}
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func testUnreachablePlatformAvailable(condition: Bool) {
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if #available(iOS 7.1, *) {
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doThing() // no-warning
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return
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} else {
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doThing() // no-warning
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}
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if true {
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doThing() // no-warning
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}
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if false { // expected-note {{condition always evaluates to false}}
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doThing() // expected-warning {{will never be executed}}
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}
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}
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func testUnreachablePlatformAvailableGuard() {
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guard #available(iOS 7.1, *) else {
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doThing() // no-warning
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return
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}
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doThing() // no-warning
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}
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