Rename IndVarsSimplify to IndVarSimplify, to be consistent with

the name used in the code that these tests are for.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64624 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 25 insertions, 0 deletions

diff --git a/test/Transforms/IndVarSimplify/2003-12-10-IndVarDeadCode.ll b/test/Transforms/IndVarSimplify/2003-12-10-IndVarDeadCode.ll
new file mode 100644
index 0000000..bd9d1ef
--- /dev/null
+++ b/test/Transforms/IndVarSimplify/2003-12-10-IndVarDeadCode.ll
@@ -0,0 +1,25 @@
+; The induction variable canonicalization pass shouldn't leave dead
+; instructions laying around!
+;
+; RUN: llvm-as < %s | opt -indvars | llvm-dis | \
+; RUN:   not grep {#uses=0}
+
+define i32 @mul(i32 %x, i32 %y) {
+entry:
+        br label %tailrecurse
+
+tailrecurse:            ; preds = %endif, %entry
+        %accumulator.tr = phi i32 [ %x, %entry ], [ %tmp.9, %endif ]            ; <i32> [#uses=2]
+        %y.tr = phi i32 [ %y, %entry ], [ %tmp.8, %endif ]              ; <i32> [#uses=2]
+        %tmp.1 = icmp eq i32 %y.tr, 0           ; <i1> [#uses=1]
+        br i1 %tmp.1, label %return, label %endif
+
+endif:          ; preds = %tailrecurse
+        %tmp.8 = add i32 %y.tr, -1              ; <i32> [#uses=1]
+        %tmp.9 = add i32 %accumulator.tr, %x            ; <i32> [#uses=1]
+        br label %tailrecurse
+
+return:         ; preds = %tailrecurse
+        ret i32 %accumulator.tr
+}
+