File: stack_promotion_array_literal.swift

package info (click to toggle)
swiftlang 6.1.3-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,532 kB
  • sloc: cpp: 9,901,743; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (21 lines) | stat: -rw-r--r-- 560 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
// RUN: %target-swift-frontend -parse-as-library -O -module-name=test %s -emit-sil | %FileCheck %s
// REQUIRES: swift_stdlib_no_asserts,optimized_stdlib

// REQUIRES: swift_in_compiler

// This is an end-to-end test to check if the array literal in the loop is
// stack promoted.

// CHECK-LABEL: sil @{{.*}}testit
// CHECK:  alloc_ref{{.*}} [stack] [tail_elems

public func testit(_ N: Int, _ x: Int) {
  for _ in 0..<N {
    for _ in 0..<10 {
       var nums = [Int]()
       for _ in 0..<40_000 {
         nums += [1, 2, 3, 4, 5, 6, x]
       }
    }
  }
}