Imported Upstream version 5.18.0.247

Former-commit-id: 2d6af2e4ed0eda5cbdc2946446ef7718456ad190

external/llvm/test/Feature/cfgstructures.ll

@@ -1,53 +0,0 @@
-; RUN: llvm-as < %s | llvm-dis > %t1.ll
-; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
-; RUN: diff %t1.ll %t2.ll
-
-;; This is an irreducible flow graph
-define void @irreducible(i1 %cond) {
-        br i1 %cond, label %X, label %Y
-
-X:              ; preds = %Y, %0
-        br label %Y
-
-Y:              ; preds = %X, %0
-        br label %X
-}
-
-;; This is a pair of loops that share the same header
-define void @sharedheader(i1 %cond) {
-        br label %A
-
-A:              ; preds = %Y, %X, %0
-        br i1 %cond, label %X, label %Y
-
-X:              ; preds = %A
-        br label %A
-
-Y:              ; preds = %A
-        br label %A
-}
-
-
-;; This is a simple nested loop
-define void @nested(i1 %cond1, i1 %cond2, i1 %cond3) {
-        br label %Loop1
-
-Loop1:          ; preds = %L2Exit, %0
-        br label %Loop2
-
-Loop2:          ; preds = %L3Exit, %Loop1
-        br label %Loop3
-
-Loop3:          ; preds = %Loop3, %Loop2
-        br i1 %cond3, label %Loop3, label %L3Exit
-
-L3Exit:         ; preds = %Loop3
-        br i1 %cond2, label %Loop2, label %L2Exit
-
-L2Exit:         ; preds = %L3Exit
-        br i1 %cond1, label %Loop1, label %L1Exit
-
-L1Exit:         ; preds = %L2Exit
-        ret void
-}
-