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-rw-r--r--test/CodeGen/AArch64/Redundantstore.ll25
1 files changed, 25 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/Redundantstore.ll b/test/CodeGen/AArch64/Redundantstore.ll
new file mode 100644
index 000000000000..72f7f4679e6d
--- /dev/null
+++ b/test/CodeGen/AArch64/Redundantstore.ll
@@ -0,0 +1,25 @@
+; RUN: llc -O3 -march=aarch64 < %s | FileCheck %s
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+@end_of_array = common global i8* null, align 8
+
+; CHECK-LABEL: @test
+; CHECK: stur
+; CHECK-NOT: stur
+define i8* @test(i32 %size) {
+entry:
+ %0 = load i8** @end_of_array, align 8
+ %conv = sext i32 %size to i64
+ %and = and i64 %conv, -8
+ %conv2 = trunc i64 %and to i32
+ %add.ptr.sum = add nsw i64 %and, -4
+ %add.ptr3 = getelementptr inbounds i8* %0, i64 %add.ptr.sum
+ %size4 = bitcast i8* %add.ptr3 to i32*
+ store i32 %conv2, i32* %size4, align 4
+ %add.ptr.sum9 = add nsw i64 %and, -4
+ %add.ptr5 = getelementptr inbounds i8* %0, i64 %add.ptr.sum9
+ %size6 = bitcast i8* %add.ptr5 to i32*
+ store i32 %conv2, i32* %size6, align 4
+ ret i8* %0
+}
+