vendor/llvm/llvm-trunk-r300422

1 files changed, 78 insertions, 0 deletions

diff --git a/test/Transforms/InstSimplify/addsub.ll b/test/Transforms/InstSimplify/addsub.ll
new file mode 100644
index 0000000000000..2f19a4d205e77
--- /dev/null
+++ b/test/Transforms/InstSimplify/addsub.ll
@@ -0,0 +1,78 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -instsimplify -S | FileCheck %s
+
+define i1 @test1(i1 %a) {
+; CHECK-LABEL: @test1(
+; CHECK-NEXT:    ret i1 true
+;
+  %b = xor i1 %a, true
+  %res = sub i1 %a, %b
+  ret i1 %res
+}
+
+define <2 x i1> @test2(<2 x i1> %a) {
+; CHECK-LABEL: @test2(
+; CHECK-NEXT:    ret <2 x i1> <i1 true, i1 true>
+;
+  %b = xor <2 x i1> %a, <i1 true, i1 true>
+  %res = sub <2 x i1> %a, %b
+  ret <2 x i1> %res
+}
+
+define i1 @test5(i1 %a) {
+; CHECK-LABEL: @test5(
+; CHECK-NEXT:    ret i1 false
+;
+  %res = add i1 %a, %a
+  ret i1 %res
+}
+
+define <2 x i1> @test6(<2 x i1> %a) {
+; CHECK-LABEL: @test6(
+; CHECK-NEXT:    ret <2 x i1> zeroinitializer
+;
+  %res = add <2 x i1> %a, %a
+  ret <2 x i1> %res
+}
+
+define i1 @test7(i1 %a) {
+; CHECK-LABEL: @test7(
+; CHECK-NEXT:    ret i1 [[A:%.*]]
+;
+  %c = xor i1 %a, true
+  %res = add i1 %c, true
+  ret i1 %res
+}
+
+; TODO: simplify this to %a
+define i1 @test8(i1 %a) {
+; CHECK-LABEL: @test8(
+; CHECK-NEXT:    [[C:%.*]] = add i1 [[A:%.*]], true
+; CHECK-NEXT:    [[RES:%.*]] = xor i1 [[C]], true
+; CHECK-NEXT:    ret i1 [[RES]]
+;
+  %c = add i1 %a, true
+  %res = xor i1 %c, true
+  ret i1 %res
+}
+
+define i1 @test9(i1 %a) {
+; CHECK-LABEL: @test9(
+; CHECK-NEXT:    ret i1 [[A:%.*]]
+;
+  %c = xor i1 %a, true
+  %res = sub i1 %c, true
+  ret i1 %res
+}
+
+; TODO: simplify this to %a
+define i1 @test10(i1 %a) {
+; CHECK-LABEL: @test10(
+; CHECK-NEXT:    [[C:%.*]] = sub i1 [[A:%.*]], true
+; CHECK-NEXT:    [[RES:%.*]] = xor i1 [[C]], true
+; CHECK-NEXT:    ret i1 [[RES]]
+;
+  %c = sub i1 %a, true
+  %res = xor i1 %c, true
+  ret i1 %res
+}