File: redundant_load_elimination.swift

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (27 lines) | stat: -rw-r--r-- 692 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
// RUN: %target-swift-frontend -parse-as-library -module-name test %s -O -emit-sil | %FileCheck %s

// REQUIRES: swift_in_compiler


public final class C {
  let i: Int

  init(i: Int) {
    self.i = i
  }
}

// CHECK-LABEL: sil @$s4test0A8LetField_1fSi_SitAA1CC_yyXEtF :
// CHECK:           [[A:%.*]] = ref_element_addr [immutable] %0 : $C, #C.i
// CHECK:           [[L:%.*]] = load [[A]]
// CHECK:           apply
// CHECK-NOT:       load
// CHECK:           tuple ([[L]] : $Int, [[L]] : $Int)
// CHECK:       } // end sil function '$s4test0A8LetField_1fSi_SitAA1CC_yyXEtF'
public func testLetField(_ c: C, f: () -> ()) ->  (Int, Int) {
  let a = c.i
  f()
  let b = c.i
  return (a, b)
}