1 files changed, 20 insertions, 0 deletions
diff --git a/test/Transforms/LICM/sink_multiple.ll b/test/Transforms/LICM/sink_multiple.ll
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+++ b/test/Transforms/LICM/sink_multiple.ll
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+; The loop sinker was running from the bottom of the loop to the top, causing
+; it to miss opportunities to sink instructions that depended on sinking other
+; instructions from the loop.  Instead they got hoisted, which is better than
+; leaving them in the loop, but increases register pressure pointlessly.
+
+; RUN: llvm-upgrade < %s | llvm-as | opt -licm | llvm-dis | \
+; RUN:    %prcontext getelementptr 1 | grep Out:
+
+%Ty = type { int, int }
+%X = external global %Ty
+
+int %test() {
+        br label %Loop
+Loop:
+        %dead = getelementptr %Ty* %X, long 0, uint 0
+        %sunk2 = load int* %dead
+        br bool false, label %Loop, label %Out
+Out:
+        ret int %sunk2
+}