xref: /llvm-project/llvm/test/Analysis/ScalarEvolution/range-attribute.ll (revision 9250aedb5cabf0e44c694f0c8e68ae03e937be89)
1*9250aedbSAndreas Jonson; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 4
2*9250aedbSAndreas Jonson; RUN: opt -disable-output "-passes=print<scalar-evolution>" -scalar-evolution-classify-expressions=0 < %s 2>&1 | FileCheck %s
3*9250aedbSAndreas Jonson
4*9250aedbSAndreas Jonsondefine i32 @slt_trip_count_with_range_attr(i32 range(i32 1, 100) %limit) {
5*9250aedbSAndreas Jonson;
6*9250aedbSAndreas Jonson; CHECK-LABEL: 'slt_trip_count_with_range_attr'
7*9250aedbSAndreas Jonson; CHECK-NEXT:  Determining loop execution counts for: @slt_trip_count_with_range_attr
8*9250aedbSAndreas Jonson; CHECK-NEXT:  Loop %loop: backedge-taken count is (-1 + %limit)<nsw>
9*9250aedbSAndreas Jonson; CHECK-NEXT:  Loop %loop: constant max backedge-taken count is i32 98
10*9250aedbSAndreas Jonson; CHECK-NEXT:  Loop %loop: symbolic max backedge-taken count is (-1 + %limit)<nsw>
11*9250aedbSAndreas Jonson; CHECK-NEXT:  Loop %loop: Trip multiple is 1
12*9250aedbSAndreas Jonson;
13*9250aedbSAndreas Jonson entry:
14*9250aedbSAndreas Jonson  br label %loop
15*9250aedbSAndreas Jonson
16*9250aedbSAndreas Jonson loop:
17*9250aedbSAndreas Jonson  %index = phi i32 [ 0, %entry ], [ %index.inc, %loop ]
18*9250aedbSAndreas Jonson  %index.inc = add i32 %index, 1
19*9250aedbSAndreas Jonson  %continue = icmp slt i32 %index.inc, %limit
20*9250aedbSAndreas Jonson  br i1 %continue, label %loop, label %loop.exit
21*9250aedbSAndreas Jonson
22*9250aedbSAndreas Jonson loop.exit:
23*9250aedbSAndreas Jonson  ret i32 0
24*9250aedbSAndreas Jonson}
25*9250aedbSAndreas Jonson
26*9250aedbSAndreas Jonsondeclare i32 @get_i32()
27*9250aedbSAndreas Jonson
28*9250aedbSAndreas Jonsondefine i32 @slt_trip_count_with_range_call() {
29*9250aedbSAndreas Jonson;
30*9250aedbSAndreas Jonson; CHECK-LABEL: 'slt_trip_count_with_range_call'
31*9250aedbSAndreas Jonson; CHECK-NEXT:  Determining loop execution counts for: @slt_trip_count_with_range_call
32*9250aedbSAndreas Jonson; CHECK-NEXT:  Loop %loop: backedge-taken count is (-1 + %limit)<nsw>
33*9250aedbSAndreas Jonson; CHECK-NEXT:  Loop %loop: constant max backedge-taken count is i32 98
34*9250aedbSAndreas Jonson; CHECK-NEXT:  Loop %loop: symbolic max backedge-taken count is (-1 + %limit)<nsw>
35*9250aedbSAndreas Jonson; CHECK-NEXT:  Loop %loop: Trip multiple is 1
36*9250aedbSAndreas Jonson;
37*9250aedbSAndreas Jonson entry:
38*9250aedbSAndreas Jonson  %limit = call range(i32 1, 100) i32 @get_i32()
39*9250aedbSAndreas Jonson  br label %loop
40*9250aedbSAndreas Jonson
41*9250aedbSAndreas Jonson loop:
42*9250aedbSAndreas Jonson  %index = phi i32 [ 0, %entry ], [ %index.inc, %loop ]
43*9250aedbSAndreas Jonson  %index.inc = add i32 %index, 1
44*9250aedbSAndreas Jonson  %continue = icmp slt i32 %index.inc, %limit
45*9250aedbSAndreas Jonson  br i1 %continue, label %loop, label %loop.exit
46*9250aedbSAndreas Jonson
47*9250aedbSAndreas Jonson loop.exit:
48*9250aedbSAndreas Jonson  ret i32 0
49*9250aedbSAndreas Jonson}
50*9250aedbSAndreas Jonson
51*9250aedbSAndreas Jonsondeclare range(i32 1, 100) i32 @get_i32_in_range()
52*9250aedbSAndreas Jonson
53*9250aedbSAndreas Jonsondefine i32 @slt_trip_count_with_range_result() {
54*9250aedbSAndreas Jonson;
55*9250aedbSAndreas Jonson; CHECK-LABEL: 'slt_trip_count_with_range_result'
56*9250aedbSAndreas Jonson; CHECK-NEXT:  Determining loop execution counts for: @slt_trip_count_with_range_result
57*9250aedbSAndreas Jonson; CHECK-NEXT:  Loop %loop: backedge-taken count is (-1 + %limit)<nsw>
58*9250aedbSAndreas Jonson; CHECK-NEXT:  Loop %loop: constant max backedge-taken count is i32 98
59*9250aedbSAndreas Jonson; CHECK-NEXT:  Loop %loop: symbolic max backedge-taken count is (-1 + %limit)<nsw>
60*9250aedbSAndreas Jonson; CHECK-NEXT:  Loop %loop: Trip multiple is 1
61*9250aedbSAndreas Jonson;
62*9250aedbSAndreas Jonson entry:
63*9250aedbSAndreas Jonson  %limit = call i32 @get_i32_in_range()
64*9250aedbSAndreas Jonson  br label %loop
65*9250aedbSAndreas Jonson
66*9250aedbSAndreas Jonson loop:
67*9250aedbSAndreas Jonson  %index = phi i32 [ 0, %entry ], [ %index.inc, %loop ]
68*9250aedbSAndreas Jonson  %index.inc = add i32 %index, 1
69*9250aedbSAndreas Jonson  %continue = icmp slt i32 %index.inc, %limit
70*9250aedbSAndreas Jonson  br i1 %continue, label %loop, label %loop.exit
71*9250aedbSAndreas Jonson
72*9250aedbSAndreas Jonson loop.exit:
73*9250aedbSAndreas Jonson  ret i32 0
74*9250aedbSAndreas Jonson}
75