ranges-multiple.ll
1.23 KB
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 -mergefunc -S < %s | FileCheck %s
define i1 @cmp_with_range(i8*, i8*) {
%v1 = load i8, i8* %0, !range !0
%v2 = load i8, i8* %1, !range !0
%out = icmp eq i8 %v1, %v2
ret i1 %out
}
define i1 @cmp_no_range(i8*, i8*) {
; CHECK-LABEL: @cmp_no_range
; CHECK-NEXT: %v1 = load i8, i8* %0
; CHECK-NEXT: %v2 = load i8, i8* %1
; CHECK-NEXT: %out = icmp eq i8 %v1, %v2
; CHECK-NEXT: ret i1 %out
%v1 = load i8, i8* %0
%v2 = load i8, i8* %1
%out = icmp eq i8 %v1, %v2
ret i1 %out
}
define i1 @cmp_different_range(i8*, i8*) {
; CHECK-LABEL: @cmp_different_range
; CHECK-NEXT: %v1 = load i8, i8* %0, align 1, !range !1
; CHECK-NEXT: %v2 = load i8, i8* %1, align 1, !range !1
; CHECK-NEXT: %out = icmp eq i8 %v1, %v2
; CHECK-NEXT: ret i1 %out
%v1 = load i8, i8* %0, !range !1
%v2 = load i8, i8* %1, !range !1
%out = icmp eq i8 %v1, %v2
ret i1 %out
}
define i1 @cmp_with_same_range(i8*, i8*) {
; CHECK-LABEL: @cmp_with_same_range
; CHECK: tail call i1 @cmp_with_range
%v1 = load i8, i8* %0, !range !0
%v2 = load i8, i8* %1, !range !0
%out = icmp eq i8 %v1, %v2
ret i1 %out
}
; The comparison must check every element of the range, not just the first pair.
!0 = !{i8 0, i8 2, i8 21, i8 30}
!1 = !{i8 0, i8 2, i8 21, i8 25}