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-rw-r--r--llvm/test/Transforms/IndVarSimplify/pr24783.ll27
1 files changed, 27 insertions, 0 deletions
diff --git a/llvm/test/Transforms/IndVarSimplify/pr24783.ll b/llvm/test/Transforms/IndVarSimplify/pr24783.ll
new file mode 100644
index 00000000000..2c19aada35e
--- /dev/null
+++ b/llvm/test/Transforms/IndVarSimplify/pr24783.ll
@@ -0,0 +1,27 @@
+; RUN: opt -S -indvars < %s | FileCheck %s
+
+target datalayout = "E-m:e-i64:64-n32:64"
+target triple = "powerpc64-unknown-linux-gnu"
+
+define void @f(i32* %end.s, i8** %loc, i32 %p) {
+; CHECK-LABEL: @f(
+entry:
+ %end = getelementptr inbounds i32, i32* %end.s, i32 %p
+ %init = bitcast i32* %end.s to i8*
+ br label %while.body.i
+
+while.body.i:
+ %ptr = phi i8* [ %ptr.inc, %while.body.i ], [ %init, %entry ]
+ %ptr.inc = getelementptr inbounds i8, i8* %ptr, i8 1
+ %ptr.inc.cast = bitcast i8* %ptr.inc to i32*
+ %cmp.i = icmp eq i32* %ptr.inc.cast, %end
+ br i1 %cmp.i, label %loop.exit, label %while.body.i
+
+loop.exit:
+; CHECK: loop.exit:
+; CHECK: [[END_BCASTED:%[a-z0-9]+]] = bitcast i32* %end to i8*
+; CHECK: store i8* [[END_BCASTED]], i8** %loc
+ %ptr.inc.lcssa = phi i8* [ %ptr.inc, %while.body.i ]
+ store i8* %ptr.inc.lcssa, i8** %loc
+ ret void
+}
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