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-rw-r--r--llvm/test/CodeGen/ARM/alias_align.ll25
1 files changed, 25 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM/alias_align.ll b/llvm/test/CodeGen/ARM/alias_align.ll
new file mode 100644
index 00000000000..452dfefbfcc
--- /dev/null
+++ b/llvm/test/CodeGen/ARM/alias_align.ll
@@ -0,0 +1,25 @@
+; RUN: llc < %s | FileCheck %s
+
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
+target triple = "armv8-arm-none-eabi"
+
+; Check the loads happen after the stores (note: directly returning 0 is also valid)
+; CHECK-LABEL: somesortofhash
+; CHECK-NOT: ldr
+; CHECK: str
+
+define i64 @somesortofhash() {
+entry:
+ %helper = alloca i8, i32 64, align 8
+ %helper.0.4x32 = bitcast i8* %helper to <4 x i32>*
+ %helper.20 = getelementptr inbounds i8, i8* %helper, i32 20
+ %helper.24 = getelementptr inbounds i8, i8* %helper, i32 24
+ store <4 x i32> zeroinitializer, <4 x i32>* %helper.0.4x32, align 8
+ %helper.20.32 = bitcast i8* %helper.20 to i32*
+ %helper.24.32 = bitcast i8* %helper.24 to i32*
+ store i32 0, i32* %helper.20.32
+ store i32 0, i32* %helper.24.32, align 8
+ %helper.20.64 = bitcast i8* %helper.20 to i64*
+ %load.helper.20.64 = load i64, i64* %helper.20.64, align 4
+ ret i64 %load.helper.20.64
+}
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