diff --git a/llvm/test/Transforms/InstCombine/fold-minmax-i1.ll b/llvm/test/Transforms/InstCombine/fold-minmax-i1.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/fold-minmax-i1.ll
@@ -0,0 +1,99 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -passes=instcombine -S | FileCheck %s
+
+;------------------------------------------------------------------------------;
+; Scalar tests
+;------------------------------------------------------------------------------;
+
+define i1 @umin_scalar(i1 %0, i1 %1) {
+; CHECK-LABEL: @umin_scalar
+; CHECK-SAME: (i1 [[TMP0:%.*]], i1 [[TMP1:%.*]]) {
+; CHECK-NEXT:    [[TMP3:%.*]] = call i1 @llvm.umin.i1(i1 [[TMP0:%.*]], i1 [[TMP1:%.*]])
+; CHECK-NEXT:    ret i1 [[TMP3]]
+;
+  %3 = call i1 @llvm.umin.i1(i1 %0, i1 %1)
+  ret i1 %3
+}
+
+define i1 @smin_scalar(i1 %0, i1 %1) {
+; CHECK-LABEL: @smin_scalar
+; CHECK-SAME: (i1 [[TMP0:%.*]], i1 [[TMP1:%.*]]) {
+; CHECK-NEXT:    [[TMP3:%.*]] = call i1 @llvm.smin.i1(i1 [[TMP0:%.*]], i1 [[TMP1:%.*]])
+; CHECK-NEXT:    ret i1 [[TMP3]]
+;
+  %3 = call i1 @llvm.smin.i1(i1 %0, i1 %1)
+  ret i1 %3
+}
+
+define i1 @umax_scalar(i1 %0, i1 %1) {
+; CHECK-LABEL: @umax_scalar
+; CHECK-SAME: (i1 [[TMP0:%.*]], i1 [[TMP1:%.*]]) {
+; CHECK-NEXT:    [[TMP3:%.*]] = call i1 @llvm.umax.i1(i1 [[TMP0:%.*]], i1 [[TMP1:%.*]])
+; CHECK-NEXT:    ret i1 [[TMP3]]
+;
+  %3 = call i1 @llvm.umax.i1(i1 %0, i1 %1)
+  ret i1 %3
+}
+
+define i1 @smax_scalar(i1 %0, i1 %1) {
+; CHECK-LABEL: @smax_scalar
+; CHECK-SAME: (i1 [[TMP0:%.*]], i1 [[TMP1:%.*]]) {
+; CHECK-NEXT:    [[TMP3:%.*]] = call i1 @llvm.smax.i1(i1 [[TMP0:%.*]], i1 [[TMP1:%.*]])
+; CHECK-NEXT:    ret i1 [[TMP3]]
+;
+  %3 = call i1 @llvm.smax.i1(i1 %0, i1 %1)
+  ret i1 %3
+}
+
+;------------------------------------------------------------------------------;
+; Vector tests
+;------------------------------------------------------------------------------;
+
+define <4 x i1> @umin_vector(<4 x i1> %0, <4 x i1> %1) {
+; CHECK-LABEL: @umin_vector
+; CHECK-SAME: (<4 x i1> [[TMP0:%.*]], <4 x i1> [[TMP1:%.*]]) {
+; CHECK-NEXT:    [[TMP3:%.*]] = call <4 x i1> @llvm.umin.v4i1(<4 x i1> [[TMP0:%.*]], <4 x i1> [[TMP1:%.*]])
+; CHECK-NEXT:    ret <4 x i1> [[TMP3]]
+;
+  %3 = call <4 x i1> @llvm.umin.v4i1(<4 x i1> %0, <4 x i1> %1)
+  ret <4 x i1> %3
+}
+
+define <4 x i1> @smin_vector(<4 x i1> %0, <4 x i1> %1) {
+; CHECK-LABEL: @smin_vector
+; CHECK-SAME: (<4 x i1> [[TMP0:%.*]], <4 x i1> [[TMP1:%.*]]) {
+; CHECK-NEXT:    [[TMP3:%.*]] = call <4 x i1> @llvm.smin.v4i1(<4 x i1> [[TMP0:%.*]], <4 x i1> [[TMP1:%.*]])
+; CHECK-NEXT:    ret <4 x i1> [[TMP3]]
+;
+  %3 = call <4 x i1> @llvm.smin.v4i1(<4 x i1> %0, <4 x i1> %1)
+  ret <4 x i1> %3
+}
+
+define <4 x i1> @umax_vector(<4 x i1> %0, <4 x i1> %1) {
+; CHECK-LABEL: @umax_vector
+; CHECK-SAME: (<4 x i1> [[TMP0:%.*]], <4 x i1> [[TMP1:%.*]]) {
+; CHECK-NEXT:    [[TMP3:%.*]] = call <4 x i1> @llvm.umax.v4i1(<4 x i1> [[TMP0:%.*]], <4 x i1> [[TMP1:%.*]])
+; CHECK-NEXT:    ret <4 x i1> [[TMP3]]
+;
+  %3 = call <4 x i1> @llvm.umax.v4i1(<4 x i1> %0, <4 x i1> %1)
+  ret <4 x i1> %3
+}
+
+define <4 x i1> @smax_vector(<4 x i1> %0, <4 x i1> %1) {
+; CHECK-LABEL: @smax_vector
+; CHECK-SAME: (<4 x i1> [[TMP0:%.*]], <4 x i1> [[TMP1:%.*]]) {
+; CHECK-NEXT:    [[TMP3:%.*]] = call <4 x i1> @llvm.smax.v4i1(<4 x i1> [[TMP0:%.*]], <4 x i1> [[TMP1:%.*]])
+; CHECK-NEXT:    ret <4 x i1> [[TMP3]]
+;
+  %3 = call <4 x i1> @llvm.smax.v4i1(<4 x i1> %0, <4 x i1> %1)
+  ret <4 x i1> %3
+}
+
+declare i1 @llvm.umin.i1(i1, i1)
+declare i1 @llvm.smin.i1(i1, i1)
+declare i1 @llvm.umax.i1(i1, i1)
+declare i1 @llvm.smax.i1(i1, i1)
+declare <4 x i1> @llvm.umin.v4i1(<4 x i1>, <4 x i1>)
+declare <4 x i1> @llvm.smin.v4i1(<4 x i1>, <4 x i1>)
+declare <4 x i1> @llvm.umax.v4i1(<4 x i1>, <4 x i1>)
+declare <4 x i1> @llvm.smax.v4i1(<4 x i1>, <4 x i1>)