Files
swift-mirror/test/DebugInfo/dead-store-elimination.sil
Erik Eckstein 7cceaff5f3 SIL: don't print operand types in textual SIL
Type annotations for instruction operands are omitted, e.g.

```
  %3 = struct $S(%1, %2)
```

Operand types are redundant anyway and were only used for sanity checking in the SIL parser.

But: operand types _are_ printed if the definition of the operand value was not printed yet.
This happens:

* if the block with the definition appears after the block where the operand's instruction is located

* if a block or instruction is printed in isolation, e.g. in a debugger

The old behavior can be restored with `-Xllvm -sil-print-types`.
This option is added to many existing test files which check for operand types in their check-lines.
2024-11-21 18:49:52 +01:00

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// RUN: %target-sil-opt -sil-print-types %s -dead-store-elimination -enable-sil-verify-all | %FileCheck %s
// REQUIRES: swift_in_compiler
sil_stage canonical
import Swift
import Builtin
// We should be able to replace the local store with a debug_value.
// The dead store elimination pass is written in Swift, and should call
// salvage debug info when removing the store.
// CHECK-LABEL: @trivial_local_dead_store
// CHECK: debug_value %{{[0-9]+}} : $Int64, var, name "a"
// CHECK: return
sil hidden @trivial_local_dead_store : $@convention(thin) () -> () {
bb0:
%0 = alloc_stack $Int64, var, name "a"
%1 = integer_literal $Builtin.Int64, 1
%2 = struct $Int64 (%1 : $Builtin.Int64)
store %2 to %0 : $*Int64
%4 = tuple ()
dealloc_stack %0 : $*Int64
return %4 : $()
}