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This ensures that we can write FileCheck patterns that match the end of sil
functions. Just using a FileCheck pattern against a brace is not sufficient in
the context of checking the SIL emitted by SILGen. This is because we could match a
different function's body and match the closing brace against the other
function's end brace.
With this change, one can be specific by checking:
// CHECK: } {{.*}} end sil function '<mangled name>'
The inspiration for this change is rdar://28685236. While updating SILGen tests
for that I have found many instances of SILGen tests pattern matching against
the wrong function bodies. This change will allow me to eliminate these problems
robustly.
rdar://29077869
36 lines
1.0 KiB
Plaintext
36 lines
1.0 KiB
Plaintext
// RUN: %target-sil-opt -assume-parsing-unqualified-ownership-sil -module-name Swift -enable-sil-verify-all %s -diagnostics | %FileCheck %s
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sil_stage raw
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import Builtin
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enum Never {}
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class TheClass {}
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// Ensure that when we remove the code after the apply of noreturn
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// function nada, we don't fail verification on a dealloc_stack with
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// an undef operand, but that we do later remove it in the diagnostics
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// passes.
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// CHECK-LABEL: sil @unreachable_deallocstack
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sil @unreachable_deallocstack: $@convention(method) (@guaranteed TheClass) -> () {
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bb0(%0 : $TheClass):
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%1 = function_ref @nada : $@convention(c) (Builtin.Int32) -> Never
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%2 = integer_literal $Builtin.Int32, 0
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// CHECK: apply{{.*}}
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%3 = apply %1(%2) : $@convention(c) (Builtin.Int32) -> Never
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// CHECK-NEXT: unreachable
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// CHECK-NOT: dealloc_stack
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%4 = alloc_stack $TheClass
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store %0 to %4 : $*TheClass
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br bb1
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bb1:
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dealloc_stack %4 : $*TheClass
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%5 = tuple ()
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return %5 : $()
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}
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// CHECK-LABEL: sil @nada
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sil @nada : $@convention(c) (Builtin.Int32) -> Never
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