1 files changed, 53 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/and-or-icmps.ll b/llvm/test/Transforms/InstCombine/and-or-icmps.ll
new file mode 100644
index 00000000000..3903472e911
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/and-or-icmps.ll
@@ -0,0 +1,53 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -instcombine -S | FileCheck %s
+
+define i1 @PR1817_1(i32 %X) {
+; CHECK-LABEL: @PR1817_1(
+; CHECK-NEXT:    [[A:%.*]] = icmp slt i32 %X, 10
+; CHECK-NEXT:    [[B:%.*]] = icmp ult i32 %X, 10
+; CHECK-NEXT:    [[C:%.*]] = and i1 [[A]], [[B]]
+; CHECK-NEXT:    ret i1 [[C]]
+;
+  %A = icmp slt i32 %X, 10
+  %B = icmp ult i32 %X, 10
+  %C = and i1 %A, %B
+  ret i1 %C
+}
+
+define i1 @PR1817_2(i32 %X) {
+; CHECK-LABEL: @PR1817_2(
+; CHECK-NEXT:    [[A:%.*]] = icmp slt i32 %X, 10
+; CHECK-NEXT:    [[B:%.*]] = icmp ult i32 %X, 10
+; CHECK-NEXT:    [[C:%.*]] = or i1 [[A]], [[B]]
+; CHECK-NEXT:    ret i1 [[C]]
+;
+  %A = icmp slt i32 %X, 10
+  %B = icmp ult i32 %X, 10
+  %C = or i1 %A, %B
+  ret i1 %C
+}
+
+define i1 @PR2330(i32 %a, i32 %b) {
+; CHECK-LABEL: @PR2330(
+; CHECK-NEXT:    [[TMP1:%.*]] = or i32 %b, %a
+; CHECK-NEXT:    [[TMP2:%.*]] = icmp ult i32 [[TMP1]], 8
+; CHECK-NEXT:    ret i1 [[TMP2]]
+;
+  %cmp1 = icmp ult i32 %a, 8
+  %cmp2 = icmp ult i32 %b, 8
+  %and = and i1 %cmp2, %cmp1
+  ret i1 %and
+}
+
+define i1 @test(i32 %tmp1030) {
+; CHECK-LABEL: @test(
+; CHECK-NEXT:    [[TMP1030_OFF:%.*]] = add i32 %tmp1030, -39
+; CHECK-NEXT:    [[TMP1030_CMP:%.*]] = icmp ugt i32 [[TMP1030_OFF]], 1
+; CHECK-NEXT:    ret i1 [[TMP1030_CMP]]
+;
+  %tmp1037 = icmp ne i32 %tmp1030, 39
+  %tmp1039 = icmp ne i32 %tmp1030, 40
+  %tmp1042 = and i1 %tmp1037, %tmp1039
+  ret i1 %tmp1042
+}
+