Testcase for PR3909.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69868 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Analysis/ScalarEvolution/pr3909.ll b/test/Analysis/ScalarEvolution/pr3909.ll
new file mode 100644 (file)
index 0000000..80720c7
--- /dev/null
+++ b/test/Analysis/ScalarEvolution/pr3909.ll
@@ -0,0 +1,30 @@
+; RUN: llvm-as < %s | opt -indvars -disable-output
+; PR 3909
+
+
+       type { i32, %1* }               ; type %0
+       type { i32, i8* }               ; type %1
+
+define x86_stdcallcc i32 @_Dmain(%0 %unnamed) {
+entry:
+       br label %whilebody
+
+whilebody:             ; preds = %endwhile5, %entry
+       %i.0 = phi i64 [ 0, %entry ], [ %tmp11, %endwhile5 ]            ; <i64> [#uses=1]
+       %m.0 = phi i64 [ 0, %entry ], [ %tmp11, %endwhile5 ]            ; <i64> [#uses=2]
+       %tmp2 = mul i64 %m.0, %m.0              ; <i64> [#uses=1]
+       br label %whilecond3
+
+whilecond3:            ; preds = %whilebody4, %whilebody
+       %j.0 = phi i64 [ %tmp2, %whilebody ], [ %tmp9, %whilebody4 ]            ; <i64> [#uses=2]
+       %tmp7 = icmp ne i64 %j.0, 0             ; <i1> [#uses=1]
+       br i1 %tmp7, label %whilebody4, label %endwhile5
+
+whilebody4:            ; preds = %whilecond3
+       %tmp9 = add i64 %j.0, 1         ; <i64> [#uses=1]
+       br label %whilecond3
+
+endwhile5:             ; preds = %whilecond3
+       %tmp11 = add i64 %i.0, 1                ; <i64> [#uses=2]
+       br label %whilebody
+}