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-rw-r--r--test/Analysis/ScalarEvolution/load-with-range-metadata.ll37
1 files changed, 37 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/load-with-range-metadata.ll b/test/Analysis/ScalarEvolution/load-with-range-metadata.ll
new file mode 100644
index 0000000..2f6dcd0
--- /dev/null
+++ b/test/Analysis/ScalarEvolution/load-with-range-metadata.ll
@@ -0,0 +1,37 @@
+; RUN: opt -analyze -scalar-evolution < %s | FileCheck %s
+
+define i32 @slt_trip_count_with_range(i32 *%ptr0, i32 *%ptr1) {
+; CHECK-LABEL: slt_trip_count_with_range
+ entry:
+ %limit = load i32* %ptr0, !range !0
+ br label %loop
+
+ loop:
+; CHECK: Loop %loop: max backedge-taken count is 98
+ %index = phi i32 [ 0, %entry ], [ %index.inc, %loop ]
+ %index.inc = add i32 %index, 1
+ %continue = icmp slt i32 %index.inc, %limit
+ br i1 %continue, label %loop, label %loop.exit
+
+ loop.exit:
+ ret i32 0
+}
+
+define i32 @ult_trip_count_with_range(i32 *%ptr0, i32 *%ptr1) {
+; CHECK-LABEL: ult_trip_count_with_range
+ entry:
+ %limit = load i32* %ptr0, !range !0
+ br label %loop
+
+ loop:
+; CHECK: Loop %loop: max backedge-taken count is 98
+ %index = phi i32 [ 0, %entry ], [ %index.inc, %loop ]
+ %index.inc = add i32 %index, 1
+ %continue = icmp ult i32 %index.inc, %limit
+ br i1 %continue, label %loop, label %loop.exit
+
+ loop.exit:
+ ret i32 0
+}
+
+!0 = metadata !{i32 1, i32 100}