llvm-project/llvm/test/CodeGen/Generic/zero-probability.mir

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# RUN: llc -o /dev/null %s
# REQUIRES: asserts
# Makes sure that having a probability of 0x00000000 to branch to a successor
# doesn't hit an APInt assert in the MIParser.
--- |
define i32 @main() local_unnamed_addr #0 {
entry:
ret i32 0
other:
ret i32 0
}
attributes #0 = { nounwind }
!llvm.module.flags = !{!0, !1}
!llvm.ident = !{!2}
!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 7, !"PIC Level", i32 2}
!2 = !{!"clang version 6.0.0"}
!3 = !{!"branch_weights", i32 0, i32 -1}
...
---
name: main
alignment: 2
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
tracksRegLiveness: true
body: |
bb.0.entry:
successors: %bb.1.other(0x00000000)
bb.1.other:
...