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-rw-r--r--llvm/test/CodeGen/AVR/zext.ll31
1 files changed, 31 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AVR/zext.ll b/llvm/test/CodeGen/AVR/zext.ll
new file mode 100644
index 00000000000..ff7a653c7ef
--- /dev/null
+++ b/llvm/test/CodeGen/AVR/zext.ll
@@ -0,0 +1,31 @@
+; RUN: llc < %s -march=avr | FileCheck %s
+
+; zext R25:R24, R24
+; eor R25, R25
+define i16 @zext1(i8 %x) {
+; CHECK-LABEL: zext1:
+; CHECK: eor r25, r25
+ %1 = zext i8 %x to i16
+ ret i16 %1
+}
+
+; zext R25:R24, R20
+; mov R24, R20
+; eor R25, R25
+define i16 @zext2(i8 %x, i8 %y) {
+; CHECK-LABEL: zext2:
+; CHECK: mov r24, r22
+; CHECK: eor r25, r25
+ %1 = zext i8 %y to i16
+ ret i16 %1
+}
+
+; zext R25:R24, R24
+; eor R25, R25
+define i16 @zext_i1(i1 %x) {
+; CHECK-LABEL: zext_i1:
+; CHECK: eor r25, r25
+ %1 = zext i1 %x to i16
+ ret i16 %1
+}
+
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