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-rw-r--r--llvm/test/Transforms/LoopSimplify/pr28272.ll76
1 files changed, 0 insertions, 76 deletions
diff --git a/llvm/test/Transforms/LoopSimplify/pr28272.ll b/llvm/test/Transforms/LoopSimplify/pr28272.ll
deleted file mode 100644
index 49990f92cab..00000000000
--- a/llvm/test/Transforms/LoopSimplify/pr28272.ll
+++ /dev/null
@@ -1,76 +0,0 @@
-; RUN: opt < %s -lcssa -loop-unroll -S | FileCheck %s
-target triple = "x86_64-unknown-linux-gnu"
-
-; PR28272
-; When LoopSimplify separates nested loops, it might break LCSSA form: values
-; from the original loop might be used in the outer loop. This test invokes
-; loop-unroll, which calls loop-simplify before itself. If LCSSA is broken
-; after loop-simplify, we crash on assertion.
-
-; CHECK-LABEL: @foo
-define void @foo() {
-entry:
- br label %header
-
-header:
- br label %loop1
-
-loop1:
- br i1 true, label %loop1, label %bb43
-
-bb43:
- %a = phi i32 [ undef, %loop1 ], [ 0, %bb45 ], [ %a, %bb54 ]
- %b = phi i32 [ 0, %loop1 ], [ 1, %bb54 ], [ %c, %bb45 ]
- br i1 true, label %bb114, label %header
-
-bb114:
- %c = add i32 0, 1
- %d = add i32 0, 1
- br i1 true, label %bb45, label %bb54
-
-bb45:
- %x = add i32 %d, 0
- br label %bb43
-
-bb54:
- br label %bb43
-}
-
-; CHECK-LABEL: @foo2
-define void @foo2() {
-entry:
- br label %outer
-
-outer.loopexit:
- br label %outer
-
-outer:
- br label %loop1
-
-loop1:
- br i1 true, label %loop1, label %loop2.preheader
-
-loop2.preheader:
- %a.ph = phi i32 [ undef, %loop1 ]
- %b.ph = phi i32 [ 0, %loop1 ]
- br label %loop2
-
-loop2:
- %a = phi i32 [ 0, %loop2.if.true ], [ %a, %loop2.if.false ], [ %a.ph, %loop2.preheader ], [0, %bb]
- %b = phi i32 [ 1, %loop2.if.false ], [ %c, %loop2.if.true ], [ %b.ph, %loop2.preheader ], [%c, %bb]
- br i1 true, label %loop2.if, label %outer.loopexit
-
-loop2.if:
- %c = add i32 0, 1
- switch i32 undef, label %loop2.if.false [i32 0, label %loop2.if.true
- i32 1, label %bb]
-
-loop2.if.true:
- br i1 undef, label %loop2, label %bb
-
-loop2.if.false:
- br label %loop2
-
-bb:
- br label %loop2
-}
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