mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
cbb89c78de
emitShadowCopyIfNeeded has some extra code that was added when function arguments were moved out of the async context to ensure that they are being lifetime-extended, and there is also code that generates an incorrect load from the shadow copy. However, emitShadowCopyIfNeeded is supposed return either an alloca or the value, and IRGenDebugInfo knows to describe the value in the alloca already. The load is counterproductive it's only valid until whatever register it ends up in is clobbered, whereas the alloca is valid throughout the function. This patch removes the load and updates the tests accordingly. rdar://81805727
29 lines
1.3 KiB
Swift
29 lines
1.3 KiB
Swift
// RUN: %target-swift-frontend %s -emit-ir -g -o - \
|
|
// RUN: -module-name a -disable-availability-checking \
|
|
// RUN: | %FileCheck %s --check-prefix=CHECK
|
|
// REQUIRES: concurrency
|
|
|
|
// Test that lifetime extension preserves a dbg.declare for "n" in the resume
|
|
// funclet.
|
|
|
|
// CHECK-LABEL: define {{.*}} void @"$s1a4fiboyS2iYaFTQ0_"
|
|
// CHECK-NEXT: entryresume.0:
|
|
// CHECK-NEXT: call void @llvm.dbg.declare(metadata {{.*}}%0, metadata ![[R:[0-9]+]], {{.*}}!DIExpression(DW_OP
|
|
// CHECK-NEXT: call void @llvm.dbg.declare(metadata {{.*}}%0, metadata ![[N:[0-9]+]], {{.*}}!DIExpression(DW_OP
|
|
// CHECK-NEXT: call void @llvm.dbg.declare(metadata {{.*}}%0, metadata ![[LHS:[0-9]+]], {{.*}}!DIExpression(DW_OP
|
|
// CHECK-NEXT: call void @llvm.dbg.declare(metadata {{.*}}%0, metadata ![[RHS:[0-9]+]], {{.*}}!DIExpression(DW_OP
|
|
// CHECK-NOT: {{ ret }}
|
|
// CHECK: call void asm sideeffect ""
|
|
// CHECK: ![[R]] = !DILocalVariable(name: "retval"
|
|
// CHECK: ![[N]] = !DILocalVariable(name: "n"
|
|
// CHECK: ![[LHS]] = !DILocalVariable(name: "lhs"
|
|
// CHECK: ![[RHS]] = !DILocalVariable(name: "rhs"
|
|
public func fibo(_ n: Int) async -> Int {
|
|
var retval = n
|
|
if retval < 2 { return 1 }
|
|
retval = retval - 1
|
|
let lhs = await fibo(retval - 1)
|
|
let rhs = await fibo(retval - 2)
|
|
return lhs + rhs + retval
|
|
}
|