llvm/test/Transforms/SSI/2009-08-17-CritEdge.ll

; RUN: opt < %s -ssi-everything -disable-output

define void @test(i32 %x) {
entry:
  br label %label1
label1:
  %A = phi i32 [ 0, %entry ], [ %A.1, %label2 ]
  %B = icmp slt i32 %A, %x
  br i1 %B, label %label2, label %label2
label2:
  %A.1 = add i32 %A, 1
  br label %label1
label3:  ; No predecessors!
  ret void
}
Change tests from "opt %s" to "opt < %s" so that opt doesn't see the input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8 2009-09-11 18:01:28 +00:00			`; RUN: opt < %s -ssi-everything -disable-output`
Don't crash on critical edge. Patch by Andre Tavares. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79252 91177308-0d34-0410-b5e6-96231b3b80d8 2009-08-17 17:00:57 +00:00
			`define void @test(i32 %x) {`
			`entry:`
			`br label %label1`
			`label1:`
			`%A = phi i32 [ 0, %entry ], [ %A.1, %label2 ]`
			`%B = icmp slt i32 %A, %x`
			`br i1 %B, label %label2, label %label2`
			`label2:`
			`%A.1 = add i32 %A, 1`
			`br label %label1`
			`label3: ; No predecessors!`
			`ret void`
			`}`