1 files changed, 27 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/Hexagon/cmpbeq.ll b/llvm/test/CodeGen/Hexagon/cmpbeq.ll
new file mode 100644
index 00000000000..645161ffdd0
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/cmpbeq.ll
@@ -0,0 +1,27 @@
+; RUN: llc -march=hexagon < %s | FileCheck %s
+; Check that we generate 'cmpb.eq' instruction for a byte comparision.
+
+@g0 = common global i8 0, align 1
+
+; Function Attrs: nounwind
+define i32 @f0(i32 %a0, i32 %a1) #0 {
+b0:
+  %v0 = xor i32 %a1, %a0
+  %v1 = and i32 %v0, 255
+  %v2 = icmp eq i32 %v1, 0
+  br i1 %v2, label %b1, label %b2
+; CHECK-NOT: xor(r{{[0-9]+}},r{{[0-9]+}})
+; CHECK-NOT: zxtb(r{{[0-9]+}})
+; CHECK: cmpb.eq(r{{[0-9]+}},r{{[0-9]+}})
+
+b1:                                               ; preds = %b0
+  %v3 = trunc i32 %a0 to i8
+  store i8 %v3, i8* @g0, align 1
+  br label %b2
+
+b2:                                               ; preds = %b1, %b0
+  %v4 = phi i32 [ 1, %b1 ], [ 0, %b0 ]
+  ret i32 %v4
+}
+
+attributes #0 = { nounwind }