1 files changed, 20 insertions, 0 deletions
diff --git a/test/Transforms/LoopStrengthReduce/invariant_value_first_arg.ll b/test/Transforms/LoopStrengthReduce/invariant_value_first_arg.ll
new file mode 100644
index 0000000..6e90512
--- /dev/null
+++ b/test/Transforms/LoopStrengthReduce/invariant_value_first_arg.ll
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+; Check that the index of 'P[outer]' is pulled out of the loop.
+; RUN: llvm-upgrade < %s | llvm-as | opt -loop-reduce | llvm-dis | \
+; RUN:   not grep {getelementptr.*%outer.*%INDVAR}
+
+declare bool %pred()
+
+void %test([10000 x int]* %P, int %outer) {
+	br label %Loop
+Loop:
+	%INDVAR = phi int [0, %0], [%INDVAR2, %Loop]
+
+	%STRRED = getelementptr [10000 x int]* %P, int %outer, int %INDVAR
+	store int 0, int* %STRRED
+
+	%INDVAR2 = add int %INDVAR, 1
+	%cond = call bool %pred()
+	br bool %cond, label %Loop, label %Out
+Out:
+	ret void
+}