llvm/test/Verifier/range-2.ll
Rafael Espindola c49b29ef5d Require intervals in the range metadata to be in a canonical form: They must
be non contiguous, non overlapping and sorted by the lower end.

While this is technically a backward incompatibility, every frontent currently
produces range metadata with a single interval and we don't have any pass
that merges intervals yet, so no existing bitcode files should be rejected by
this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157741 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-31 13:45:46 +00:00

37 lines
640 B
LLVM

; RUN: llvm-as < %s -o /dev/null
define i8 @f1(i8* %x) {
entry:
%y = load i8* %x, align 1, !range !0
ret i8 %y
}
!0 = metadata !{i8 0, i8 1}
define i8 @f2(i8* %x) {
entry:
%y = load i8* %x, align 1, !range !1
ret i8 %y
}
!1 = metadata !{i8 255, i8 1}
define i8 @f3(i8* %x) {
entry:
%y = load i8* %x, align 1, !range !2
ret i8 %y
}
!2 = metadata !{i8 1, i8 3, i8 5, i8 42}
define i8 @f4(i8* %x) {
entry:
%y = load i8* %x, align 1, !range !3
ret i8 %y
}
!3 = metadata !{i8 -1, i8 0, i8 1, i8 2}
define i8 @f5(i8* %x) {
entry:
%y = load i8* %x, align 1, !range !4
ret i8 %y
}
!4 = metadata !{i8 -1, i8 0, i8 1, i8 -2}