; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s declare void @llvm.assume(i1) define i1 @test(i8 %x, i8 %y) { ; CHECK-LABEL: @test( ; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i8 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: [[CMP_0:%.*]] = icmp uge i8 [[ADD]], 10 ; CHECK-NEXT: tail call void @llvm.assume(i1 [[CMP_0]]) ; CHECK-NEXT: [[EXT:%.*]] = zext i8 [[X]] to i16 ; CHECK-NEXT: [[T_1:%.*]] = icmp uge i16 [[EXT]], 0 ; CHECK-NEXT: [[C_1:%.*]] = icmp uge i16 [[EXT]], 1 ; CHECK-NEXT: [[RES:%.*]] = xor i1 true, [[C_1]] ; CHECK-NEXT: ret i1 [[RES]] ; %add = add nuw nsw i8 %x, %y %cmp.0 = icmp uge i8 %add, 10 tail call void @llvm.assume(i1 %cmp.0) %ext = zext i8 %x to i16 %t.1 = icmp uge i16 %ext, 0 %c.1 = icmp uge i16 %ext, 1 %res = xor i1 %t.1, %c.1 ret i1 %res } define i1 @test2(i8 %x, i8 %y) { ; CHECK-LABEL: @test2( ; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i8 [[X:%.*]], [[Y:%.*]] ; CHECK-NEXT: [[CMP_0:%.*]] = icmp uge i8 [[ADD]], 0 ; CHECK-NEXT: tail call void @llvm.assume(i1 [[CMP_0]]) ; CHECK-NEXT: [[EXT:%.*]] = zext i8 [[X]] to i16 ; CHECK-NEXT: [[ADD_1:%.*]] = add nuw nsw i16 [[EXT]], 1 ; CHECK-NEXT: [[T_1:%.*]] = icmp uge i16 [[ADD_1]], 1 ; CHECK-NEXT: [[C_1:%.*]] = icmp uge i16 [[ADD_1]], 2 ; CHECK-NEXT: [[F_1:%.*]] = icmp ult i16 [[ADD_1]], 1 ; CHECK-NEXT: [[RES_1:%.*]] = xor i1 true, [[C_1]] ; CHECK-NEXT: [[RES_2:%.*]] = xor i1 [[RES_1]], false ; CHECK-NEXT: [[C_2:%.*]] = icmp sge i16 [[ADD_1]], 1 ; CHECK-NEXT: [[RES_3:%.*]] = xor i1 [[RES_2]], [[C_2]] ; CHECK-NEXT: ret i1 [[RES_3]] ; %add = add nuw nsw i8 %x, %y %cmp.0 = icmp uge i8 %add, 0 tail call void @llvm.assume(i1 %cmp.0) %ext = zext i8 %x to i16 %add.1 = add nuw nsw i16 %ext, 1 %t.1 = icmp uge i16 %add.1, 1 %c.1 = icmp uge i16 %add.1, 2 %f.1 = icmp ult i16 %add.1, 1 %res.1 = xor i1 %t.1, %c.1 %res.2 = xor i1 %res.1, %f.1 %c.2 = icmp sge i16 %add.1, 1 %res.3 = xor i1 %res.2, %c.2 ret i1 %res.3 } define i1 @gep_zext_idx(ptr %p, i8 %cnt, i8 %off) { ; CHECK-LABEL: @gep_zext_idx( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i8 [[CNT:%.*]], [[OFF:%.*]] ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[ADD]], 10 ; CHECK-NEXT: tail call void @llvm.assume(i1 [[CMP]]) ; CHECK-NEXT: [[EXT:%.*]] = zext i8 [[CNT]] to i16 ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i32, ptr [[P:%.*]], i16 [[EXT]] ; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[ADD_PTR]], [[P]] ; CHECK-NEXT: [[F_1:%.*]] = icmp ult ptr [[ADD_PTR]], [[P]] ; CHECK-NEXT: [[GEP_11:%.*]] = getelementptr inbounds i32, ptr [[P]], i16 11 ; CHECK-NEXT: [[C_1:%.*]] = icmp ugt ptr [[ADD_PTR]], [[GEP_11]] ; CHECK-NEXT: [[RES_1:%.*]] = xor i1 true, false ; CHECK-NEXT: [[RES_2:%.*]] = xor i1 [[RES_1]], [[C_1]] ; CHECK-NEXT: ret i1 [[RES_2]] ; entry: %add = add nuw nsw i8 %cnt, %off %cmp = icmp ugt i8 %add, 10 tail call void @llvm.assume(i1 %cmp) %ext = zext i8 %cnt to i16 %add.ptr = getelementptr inbounds i32, ptr %p, i16 %ext %t.1 = icmp uge ptr %add.ptr, %p %f.1 = icmp ult ptr %add.ptr, %p %gep.11 = getelementptr inbounds i32, ptr %p, i16 11 %c.1 = icmp ugt ptr %add.ptr, %gep.11 %res.1 = xor i1 %t.1, %f.1 %res.2 = xor i1 %res.1, %c.1 ret i1 %res.2 } define i1 @gep_zext_idx_adds(ptr %p, i8 %cnt, i8 %off) { ; CHECK-LABEL: @gep_zext_idx_adds( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i8 [[CNT:%.*]], [[OFF:%.*]] ; CHECK-NEXT: [[CMP:%.*]] = icmp uge i8 [[ADD]], 10 ; CHECK-NEXT: tail call void @llvm.assume(i1 [[CMP]]) ; CHECK-NEXT: [[EXT:%.*]] = zext i8 [[CNT]] to i16 ; CHECK-NEXT: [[EXT_1:%.*]] = add nuw nsw i16 [[EXT]], 1 ; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i32, ptr [[P:%.*]], i16 [[EXT_1]] ; CHECK-NEXT: [[T_1:%.*]] = icmp uge ptr [[ADD_PTR]], [[P]] ; CHECK-NEXT: [[F_1:%.*]] = icmp ult ptr [[ADD_PTR]], [[P]] ; CHECK-NEXT: [[GEP_11:%.*]] = getelementptr inbounds i32, ptr [[P]], i16 11 ; CHECK-NEXT: [[C_1:%.*]] = icmp uge ptr [[ADD_PTR]], [[GEP_11]] ; CHECK-NEXT: [[RES_1:%.*]] = xor i1 [[T_1]], [[F_1]] ; CHECK-NEXT: [[RES_2:%.*]] = xor i1 [[RES_1]], [[C_1]] ; CHECK-NEXT: ret i1 [[RES_2]] ; entry: %add = add nuw nsw i8 %cnt, %off %cmp = icmp uge i8 %add, 10 tail call void @llvm.assume(i1 %cmp) %ext = zext i8 %cnt to i16 %ext.1 = add nuw nsw i16 %ext, 1 %add.ptr = getelementptr inbounds i32, ptr %p, i16 %ext.1 %t.1 = icmp uge ptr %add.ptr, %p %f.1 = icmp ult ptr %add.ptr, %p %gep.11 = getelementptr inbounds i32, ptr %p, i16 11 %c.1 = icmp uge ptr %add.ptr, %gep.11 %res.1 = xor i1 %t.1, %f.1 %res.2 = xor i1 %res.1, %c.1 ret i1 %res.2 }