Assertion `address.isLValue() && "Must have a physical copyable lvalue decl ref that " "evaluates to an address"' failed

[tayloraswift]

Description

this crashes the 5.10 compiler. it hits the same assertion as #71598

Reproduction

struct T:~Copyable
{
    var r:Range<Int> { fatalError() }

    var y:Int { self.r.upperBound }
}

Stack dump

swift-frontend: /home/build-user/swift/lib/SILGen/SILGenLValue.cpp:3332: void swift::Lowering::LValue::addNonMemberVarComponent(swift::Lowering::SILGenFunction &, swift::SILLocation, swift::VarDecl *, swift::SubstitutionMap, swift::Lowering::LValueOptions, swift::Lowering::SGFAccessKind, swift::AccessStrategy, swift::CanType, llvm::Optional<ActorIsolation>)::NonMemberVarAccessEmitter::emitUsingStorage(swift::Lowering::LValueTypeData): Assertion `address.isLValue() && "Must have a physical copyable lvalue decl ref that " "evaluates to an address"' failed.
Stack dump:
0.      Program arguments: /usr/bin/swift-frontend -frontend -interpret - -disable-objc-interop -I swiftfiddle.com/_Packages/.build/release -new-driver-path /usr/bin/swift-driver -empty-abi-descriptor -resource-dir /usr/lib/swift -module-name main -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -l_Packages
1.      Swift version 5.10-dev (LLVM dbfaba0078e9380, Swift 63c8b551eb2f613)
2.      Compiling with the current language version
3.      While evaluating request ASTLoweringRequest(Lowering AST to SIL for module main)
4.      While silgen emitFunction SIL function "@$s4main1TV1ySivg".
 for getter for y (at <stdin>:5:9)
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
/usr/bin/swift-frontend(+0x7307d73)[0x55fcca57bd73]
/usr/bin/swift-frontend(+0x7305abe)[0x55fcca579abe]
/usr/bin/swift-frontend(+0x73080ea)[0x55fcca57c0ea]
/lib/x86_64-linux-gnu/libc.so.6(+0x42520)[0x7f40248b8520]
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x12c)[0x7f402490c9fc]
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16)[0x7f40248b8476]
/lib/x86_64-linux-gnu/libc.so.6(abort+0xd3)[0x7f402489e7f3]
/lib/x86_64-linux-gnu/libc.so.6(+0x2871b)[0x7f402489e71b]
/lib/x86_64-linux-gnu/libc.so.6(+0x39e96)[0x7f40248afe96]
/usr/bin/swift-frontend(+0x15a8778)[0x55fcc481c778]
/usr/bin/swift-frontend(+0x15a99b2)[0x55fcc481d9b2]
/usr/bin/swift-frontend(+0x15aa55d)[0x55fcc481e55d]
/usr/bin/swift-frontend(+0x15b76d5)[0x55fcc482b6d5]
/usr/bin/swift-frontend(+0x15a74be)[0x55fcc481b4be]
/usr/bin/swift-frontend(+0x15b7918)[0x55fcc482b918]
/usr/bin/swift-frontend(+0x15a7522)[0x55fcc481b522]
/usr/bin/swift-frontend(+0x15a6d9c)[0x55fcc481ad9c]
/usr/bin/swift-frontend(+0x15ac0d0)[0x55fcc48200d0]
/usr/bin/swift-frontend(+0x15a6254)[0x55fcc481a254]
/usr/bin/swift-frontend(+0x15a5f4f)[0x55fcc4819f4f]
/usr/bin/swift-frontend(+0x15772e1)[0x55fcc47eb2e1]
/usr/bin/swift-frontend(+0x15727af)[0x55fcc47e67af]
/usr/bin/swift-frontend(+0x1563d96)[0x55fcc47d7d96]
/usr/bin/swift-frontend(+0x16012a5)[0x55fcc48752a5]
/usr/bin/swift-frontend(+0x15ff7a2)[0x55fcc48737a2]
/usr/bin/swift-frontend(+0x15fe743)[0x55fcc4872743]
/usr/bin/swift-frontend(+0x15fd15d)[0x55fcc487115d]
/usr/bin/swift-frontend(+0x1592d99)[0x55fcc4806d99]
/usr/bin/swift-frontend(+0x151827d)[0x55fcc478c27d]
/usr/bin/swift-frontend(+0x151931c)[0x55fcc478d31c]
/usr/bin/swift-frontend(+0x15166f4)[0x55fcc478a6f4]
/usr/bin/swift-frontend(+0x1612c92)[0x55fcc4886c92]
/usr/bin/swift-frontend(+0x280a0fa)[0x55fcc5a7e0fa]
/usr/bin/swift-frontend(+0x1612ea3)[0x55fcc4886ea3]
/usr/bin/swift-frontend(+0x1612c2a)[0x55fcc4886c2a]
/usr/bin/swift-frontend(+0x160eede)[0x55fcc4882ede]
/usr/bin/swift-frontend(+0x160ec08)[0x55fcc4882c08]
/usr/bin/swift-frontend(+0x151c5c7)[0x55fcc47905c7]
/usr/bin/swift-frontend(+0x15fca8c)[0x55fcc4870a8c]
/usr/bin/swift-frontend(+0x151f8df)[0x55fcc47938df]
/usr/bin/swift-frontend(+0x151cfdf)[0x55fcc4790fdf]
/usr/bin/swift-frontend(+0xe34965)[0x55fcc40a8965]
/usr/bin/swift-frontend(+0xe4a7f5)[0x55fcc40be7f5]
/usr/bin/swift-frontend(+0xe382ad)[0x55fcc40ac2ad]
/usr/bin/swift-frontend(+0xe369db)[0x55fcc40aa9db]
/usr/bin/swift-frontend(+0xcc3315)[0x55fcc3f37315]
/lib/x86_64-linux-gnu/libc.so.6(+0x29d90)[0x7f402489fd90]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x80)[0x7f402489fe40]
/usr/bin/swift-frontend(+0xcc2375)[0x55fcc3f36375]
*** Signal 11: Backtracing from 0x7f402489e898...
 done ***
*** Program crashed: Bad pointer dereference at 0x0000000000000000 ***
Thread 0 "swift-frontend" crashed:
0  0x00007f402489e898 <unknown> in libc.so.6
Registers:
rax 0x0000000000000000  0
rdx 0x00007f4024775840  40 58 77 24 40 7f 00 00 60 62 77 24 40 7f 00 00  @Xw$@···`bw$@···
rcx 0x00007f402490c9fc  41 89 c5 41 f7 dd 3d 00 f0 ff ff b8 00 00 00 00  A·ÅA÷Ý=·ðÿÿ¸····
rbx 0x0000000000000006  6
rsi 0x0000000000000001  1
rdi 0x0000000000000001  1
rbp 0x00007f4024a91e90  01 00 00 00 01 00 00 00 40 58 77 24 40 7f 00 00  ········@Xw$@···
rsp 0x00007fffd97b94c0  20 00 00 00 00 00 00 00 a0 16 a9 24 40 7f 00 00   ······· ·©$@···
 r8 0x0000000000000000  0
 r9 0x0000000000000000  0
r10 0x0000000000000008  8
r11 0x0000000000000246  582
r12 0x000055fccbd38740  2f 68 6f 6d 65 2f 62 75 69 6c 64 2d 75 73 65 72  /home/build-user
r13 0x0000000000000d04  3332
r14 0x000055fccbd3ccbc  61 64 64 72 65 73 73 2e 69 73 4c 56 61 6c 75 65  address.isLValue
r15 0x0000000000000004  4
rip 0x00007f402489e898  f4 83 3d 00 36 1f 00 05 75 14 c7 05 f4 35 1f 00  ô·=·6···u·Ç·ô5··
rflags 0x0000000000010246  ZF PF
cs 0x0033  fs 0x0000  gs 0x0000
Images (23 omitted):
0x00007f4024876000–0x00007f4024a32341 c289da5071a3399de893d2af81d6a30c62646e1e libc.so.6 /usr/lib/x86_64-linux-gnu/libc.so.6
Backtrace took 0.01s

Expected behavior

it worked on 5.9

Environment

Swift version 5.10-dev (LLVM dbfaba0078e9380, Swift 63c8b55)
Target: x86_64-unknown-linux-gnu

Additional information

SwiftFiddle, which also crashes on main

[jckarter]

#71908 should fix it.