Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/StructurizeCFG/bug36015.ll

@@ -1,53 +0,0 @@
-; RUN: opt -S -structurizecfg %s | FileCheck %s
-
-; r321751 introduced a bug where control flow branching from if to exit was
-; not handled properly and instead ended up in an infinite loop.
-define void @bug36015(i32 %cmp0, i32 %count) {
-entry:
-  br label %loop.outer
-
-loop.outer:
-  %ctr.loop.outer = phi i32 [ 0, %entry ], [ %ctr.else, %else ]
-  call void @foo(i32 0)
-  br label %loop.inner
-
-loop.inner:
-  %ctr.loop.inner = phi i32 [ %ctr.loop.outer, %loop.outer ], [ %ctr.if, %if ]
-  call void @foo(i32 1)
-  %cond.inner = icmp eq i32 %cmp0, %ctr.loop.inner
-  br i1 %cond.inner, label %if, label %else
-
-; CHECK: if:
-; CHECK:   %0 = xor i1 %cond.if, true
-; CHECK:   br label %Flow
-if:
-  %ctr.if = add i32 %ctr.loop.inner, 1
-  call void @foo(i32 2)
-  %cond.if = icmp slt i32 %ctr.if, %count
-  br i1 %cond.if, label %loop.inner, label %exit
-
-; CHECK: Flow:
-; CHECK:   %2 = phi i1 [ %0, %if ], [ true, %loop.inner ]
-; CHECK:   %3 = phi i1 [ false, %if ], [ true, %loop.inner ]
-; CHECK:   br i1 %2, label %Flow1, label %loop.inner
-
-; CHECK: Flow1:
-; CHECK:   br i1 %3, label %else, label %Flow2
-
-; CHECK: else:
-; CHECK:   br label %Flow2
-else:
-  %ctr.else = add i32 %ctr.loop.inner, 1
-  call void @foo(i32 3)
-  %cond.else = icmp slt i32 %ctr.else, %count
-  br i1 %cond.else, label %loop.outer, label %exit
-
-; CHECK: Flow2:
-; CHECK:   %6 = phi i1 [ %4, %else ], [ true, %Flow1 ]
-; CHECK:   br i1 %6, label %exit, label %loop.outer
-
-exit:
-  ret void
-}
-
-declare void @foo(i32)