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; Check that verification doesn't fail when reducing a function with
; unreachable blocks.
;
; RUN: llvm-reduce --abort-on-invalid-reduction --delta-passes=unreachable-basic-blocks --test FileCheck --test-arg --check-prefixes=CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t
; RUN: FileCheck -check-prefix=UNREACHABLE %s < %t
; RUN: llvm-reduce --abort-on-invalid-reduction --delta-passes=basic-blocks --test FileCheck --test-arg --check-prefixes=CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t
; RUN: FileCheck -check-prefix=REACHABLE %s < %t
; CHECK-INTERESTINGNESS: test0
; CHECK-INTERESTINGNESS: test1
; UNREACHABLE: define void @test0() {
; UNREACHABLE-NEXT: entry:
; UNREACHABLE-NEXT: br label %exit
; UNREACHABLE-NOT: unreachable
; UNREACHABLE: exit:
; UNREACHABLE-NEXT: ret void
; basic-blocks cannot deal with unreachable blocks, leave it behind
; REACHABLE: define void @test0() {
; REACHABLE: entry:
; REACHABLE: unreachable:
; REACHABLE: exit:
define void @test0() {
entry:
br label %exit
unreachable: ; No predecessors!
br label %exit
exit:
ret void
}
; UNREACHABLE: define void @test1() {
; UNREACHABLE-NEXT: entry:
; UNREACHABLE-NEXT: br label %exit
; REACHABLE: define void @test1() {
; REACHABLE: entry:
; REACHABLE: unreachable:
; REACHABLE: exit:
define void @test1() {
entry:
br label %exit
unreachable:
br label %unreachable
exit:
ret void
}
|
