File: alloca.ll

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; 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 (33 lines) | stat: -rw-r--r-- 679 bytes parent folder | download | duplicates (16) 
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
28
29
30
31
32
33
 
; RUN: opt < %s -passes=loop-rotate -verify-memoryssa -S | FileCheck %s

; Test alloca in -loop-rotate.

; We expect a different value for %ptr each iteration (according to the
; definition of alloca). I.e. each @use must be paired with an alloca.

; CHECK: call void @use(ptr %
; CHECK: %ptr = alloca i8

@e = global i16 10

declare void @use(ptr)

define void @test() {
entry:
  %end = load i16, ptr @e
  br label %loop

loop:
  %n.phi = phi i16 [ %n, %loop.fin ], [ 0, %entry ]
  %ptr = alloca i8
  %cond = icmp eq i16 %n.phi, %end
  br i1 %cond, label %exit, label %loop.fin

loop.fin:
  %n = add i16 %n.phi, 1
  call void @use(ptr %ptr)
  br label %loop

exit:
  ret void
}