; RUN: opt -passes='require,function(codegenprepare)' -S -mtriple=x86_64 < %s | FileCheck %s ; Test that an invalid CFG is not created by splitIndirectCriticalEdges ; transformation when the 'target' block is a loop to itself. ; CHECK: .split: ; CHECK: br label %while.body.clone ; CHECK: if.else1: ; CHECK: indirectbr ; CHECK: while.body.clone: ; CHECK: br label %.split define void @test(i1 %c) { entry: br label %if.else if.else: br i1 %c, label %while.body, label %preheader preheader: br label %if.else1 if.then: unreachable while.body: %dest.sroa = phi i32 [ %1, %while.body ], [ undef, %if.else1 ], [ undef, %if.else ] %0 = inttoptr i32 %dest.sroa to ptr %incdec.ptr = getelementptr inbounds i8, ptr %0, i32 -1 %1 = ptrtoint ptr %incdec.ptr to i32 store i8 undef, ptr %incdec.ptr, align 1 br label %while.body if.else1: indirectbr ptr undef, [label %if.then, label %while.body, label %if.else, label %if.else1] }