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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt < %s -passes=aggressive-instcombine -S | FileCheck %s3 4define i16 @trunc_shl(i16 %x, i16 %y) {5; CHECK-LABEL: @trunc_shl(6; CHECK-NEXT: [[CMP0:%.*]] = icmp ult i16 [[Y:%.*]], 167; CHECK-NEXT: call void @llvm.assume(i1 [[CMP0]])8; CHECK-NEXT: [[I0:%.*]] = shl i16 [[X:%.*]], [[Y]]9; CHECK-NEXT: ret i16 [[I0]]10;11 %cmp0 = icmp ult i16 %y, 1612 call void @llvm.assume(i1 %cmp0)13 14 %zextx = zext i16 %x to i3215 %zexty = zext i16 %y to i3216 17 %i0 = shl i32 %zextx, %zexty18 %r = trunc i32 %i0 to i1619 ret i16 %r20}21 22define i16 @trunc_lshr(i16 %x, i16 %y) {23; CHECK-LABEL: @trunc_lshr(24; CHECK-NEXT: [[CMP0:%.*]] = icmp ult i16 [[X:%.*]], 025; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i16 [[Y:%.*]], 1626; CHECK-NEXT: call void @llvm.assume(i1 [[CMP0]])27; CHECK-NEXT: call void @llvm.assume(i1 [[CMP1]])28; CHECK-NEXT: [[I0:%.*]] = lshr i16 [[X]], [[Y]]29; CHECK-NEXT: ret i16 [[I0]]30;31 %cmp0 = icmp ult i16 %x, 6553632 %cmp1 = icmp ult i16 %y, 1633 call void @llvm.assume(i1 %cmp0)34 call void @llvm.assume(i1 %cmp1)35 36 %zextx = zext i16 %x to i3237 %zexty = zext i16 %y to i3238 39 %i0 = lshr i32 %zextx, %zexty40 %r = trunc i32 %i0 to i1641 ret i16 %r42}43 44define i16 @trunc_ashr(i16 %x, i16 %y) {45; CHECK-LABEL: @trunc_ashr(46; CHECK-NEXT: [[CMP0:%.*]] = icmp slt i16 [[X:%.*]], 3276747; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i16 [[X]], -3276848; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i16 [[Y:%.*]], 1649; CHECK-NEXT: call void @llvm.assume(i1 [[CMP0]])50; CHECK-NEXT: call void @llvm.assume(i1 [[CMP1]])51; CHECK-NEXT: call void @llvm.assume(i1 [[CMP2]])52; CHECK-NEXT: [[I0:%.*]] = ashr i16 [[X]], [[Y]]53; CHECK-NEXT: ret i16 [[I0]]54;55 %cmp0 = icmp slt i16 %x, 3276756 %cmp1 = icmp sge i16 %x, -3276857 %cmp2 = icmp ult i16 %y, 1658 call void @llvm.assume(i1 %cmp0)59 call void @llvm.assume(i1 %cmp1)60 call void @llvm.assume(i1 %cmp2)61 62 %zextx = sext i16 %x to i3263 %zexty = sext i16 %y to i3264 65 %i0 = ashr i32 %zextx, %zexty66 %r = trunc i32 %i0 to i1667 ret i16 %r68}69 70declare void @llvm.assume(i1)71