[NewGVN][NFC] add poison tests

llvm · Jan 30, 2022 · 42a761e · 42a761e
1 parent 5a2020d
commit 42a761e
Showing 1 changed file with 26 additions and 0 deletions.
diff --git a/llvm/test/Transforms/NewGVN/basic.ll b/llvm/test/Transforms/NewGVN/basic.ll
@@ -41,3 +41,29 @@ define i8 @simplify_add_poison(i8 %x) {
   %r = add i8 poison, %x
   ret i8 %r
 }
+
+define i8 @simplify_xor_poison(i8 %x) {
+; CHECK-LABEL: @simplify_xor_poison(
+; CHECK-NEXT:    [[R:%.*]] = xor i8 poison, [[X:%.*]]
+; CHECK-NEXT:    ret i8 [[R]]
+;
+  %r = xor i8 poison, %x
+  ret i8 %r
+}
+
+define i8 @simplify_sdiv_poison(i8 %x) {
+; CHECK-LABEL: @simplify_sdiv_poison(
+; CHECK-NEXT:    ret i8 poison
+;
+  %r = sdiv i8 poison, %x
+  ret i8 %r
+}
+
+define i8 @simplify_urem_poison(i8 %x) {
+; CHECK-LABEL: @simplify_urem_poison(
+; CHECK-NEXT:    [[R:%.*]] = urem i8 [[X:%.*]], poison
+; CHECK-NEXT:    ret i8 [[R]]
+;
+  %r = urem i8 %x, poison
+  ret i8 %r
+}