File: nested_loop_single_exit.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 (44 lines) | stat: -rw-r--r-- 1,235 bytes parent folder | download | duplicates (9)
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
34
35
36
37
38
39
40
41
42
43
44
; RUN: opt %loadNPMPolly '-passes=print<polly-detect>' -disable-output < %s 2>&1 | FileCheck %s
; RUN: opt %loadNPMPolly -passes=polly-codegen -disable-output < %s

; void f(long A[], long N) {
;   long i, j;
;   if (true)
;     for (j = 0; j < N; ++j)
;       for (i = 0; i < N; ++i)
;         A[i] = i;
; }

target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"

define void @f(ptr %A, i64 %N) nounwind {
entry:
  fence seq_cst
  br label %next

next:
  br i1 true, label %for.j, label %return

for.j:
  %j.015 = phi i64 [ %inc5, %for.inc8 ], [ 0, %next ]
  br label %for.i

for.i:
  %indvar = phi i64 [ 0, %for.j], [ %indvar.next, %for.i ]
  %scevgep = getelementptr i64, ptr %A, i64 %indvar
  store i64 %indvar, ptr %scevgep
  %indvar.next = add nsw i64 %indvar, 1
  %exitcond = icmp eq i64 %indvar.next, %N
  br i1 %exitcond, label %for.inc8, label %for.i

for.inc8:                                         ; preds = %for.body3
  %inc5 = add nsw i64 %j.015, 1
  %exitcond16 = icmp eq i64 %inc5, %N
  br i1 %exitcond16, label %return, label %for.j

return:
  fence seq_cst
  ret void
}

; CHECK: Valid Region for Scop: next => return