; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -instcombine -S | FileCheck %s define i1 @and_consts(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @and_consts( ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[K:%.*]], 12 ; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i32 [[TMP1]], 12 ; CHECK-NEXT: ret i1 [[TMP2]] ; %t1 = and i32 4, %k %t2 = icmp eq i32 %t1, 0 %t5 = and i32 8, %k %t6 = icmp eq i32 %t5, 0 %or = or i1 %t2, %t6 ret i1 %or } define i1 @and_consts_logical(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @and_consts_logical( ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[K:%.*]], 12 ; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i32 [[TMP1]], 12 ; CHECK-NEXT: ret i1 [[TMP2]] ; %t1 = and i32 4, %k %t2 = icmp eq i32 %t1, 0 %t5 = and i32 8, %k %t6 = icmp eq i32 %t5, 0 %or = select i1 %t2, i1 true, i1 %t6 ret i1 %or } define <2 x i1> @and_consts_vector(<2 x i32> %k, <2 x i32> %c1, <2 x i32> %c2) { ; CHECK-LABEL: @and_consts_vector( ; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i32> [[K:%.*]], ; CHECK-NEXT: [[TMP2:%.*]] = icmp ne <2 x i32> [[TMP1]], ; CHECK-NEXT: ret <2 x i1> [[TMP2]] ; %t1 = and <2 x i32> , %k %t2 = icmp eq <2 x i32> %t1, zeroinitializer %t5 = and <2 x i32> , %k %t6 = icmp eq <2 x i32> %t5, zeroinitializer %or = or <2 x i1> %t2, %t6 ret <2 x i1> %or } define i1 @foo1_and(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_and( ; CHECK-NEXT: [[T:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t = shl i32 1, %c1 %t4 = shl i32 1, %c2 %t1 = and i32 %t, %k %t2 = icmp eq i32 %t1, 0 %t5 = and i32 %t4, %k %t6 = icmp eq i32 %t5, 0 %or = or i1 %t2, %t6 ret i1 %or } define i1 @foo1_and_logical(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_and_logical( ; CHECK-NEXT: [[T:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t = shl i32 1, %c1 %t4 = shl i32 1, %c2 %t1 = and i32 %t, %k %t2 = icmp eq i32 %t1, 0 %t5 = and i32 %t4, %k %t6 = icmp eq i32 %t5, 0 %or = select i1 %t2, i1 true, i1 %t6 ret i1 %or } define <2 x i1> @foo1_and_vector(<2 x i32> %k, <2 x i32> %c1, <2 x i32> %c2) { ; CHECK-LABEL: @foo1_and_vector( ; CHECK-NEXT: [[T:%.*]] = shl <2 x i32> , [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = shl <2 x i32> , [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or <2 x i32> [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne <2 x i32> [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret <2 x i1> [[TMP3]] ; %t = shl <2 x i32> , %c1 %t4 = shl <2 x i32> , %c2 %t1 = and <2 x i32> %t, %k %t2 = icmp eq <2 x i32> %t1, zeroinitializer %t5 = and <2 x i32> %t4, %k %t6 = icmp eq <2 x i32> %t5, zeroinitializer %or = or <2 x i1> %t2, %t6 ret <2 x i1> %or } ; Same as above but with operands commuted one of the ands, but not the other. define i1 @foo1_and_commuted(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_and_commuted( ; CHECK-NEXT: [[K2:%.*]] = mul i32 [[K:%.*]], [[K]] ; CHECK-NEXT: [[T:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[K2]], [[TMP1]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %k2 = mul i32 %k, %k ; to trick the complexity sorting %t = shl i32 1, %c1 %t4 = shl i32 1, %c2 %t1 = and i32 %k2, %t %t2 = icmp eq i32 %t1, 0 %t5 = and i32 %t4, %k2 %t6 = icmp eq i32 %t5, 0 %or = or i1 %t2, %t6 ret i1 %or } define i1 @foo1_and_commuted_logical(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_and_commuted_logical( ; CHECK-NEXT: [[K2:%.*]] = mul i32 [[K:%.*]], [[K]] ; CHECK-NEXT: [[T:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[K2]], [[TMP1]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %k2 = mul i32 %k, %k ; to trick the complexity sorting %t = shl i32 1, %c1 %t4 = shl i32 1, %c2 %t1 = and i32 %k2, %t %t2 = icmp eq i32 %t1, 0 %t5 = and i32 %t4, %k2 %t6 = icmp eq i32 %t5, 0 %or = select i1 %t2, i1 true, i1 %t6 ret i1 %or } define <2 x i1> @foo1_and_commuted_vector(<2 x i32> %k, <2 x i32> %c1, <2 x i32> %c2) { ; CHECK-LABEL: @foo1_and_commuted_vector( ; CHECK-NEXT: [[K2:%.*]] = mul <2 x i32> [[K:%.*]], [[K]] ; CHECK-NEXT: [[T:%.*]] = shl <2 x i32> , [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = shl <2 x i32> , [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or <2 x i32> [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[K2]], [[TMP1]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne <2 x i32> [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret <2 x i1> [[TMP3]] ; %k2 = mul <2 x i32> %k, %k ; to trick the complexity sorting %t = shl <2 x i32> , %c1 %t4 = shl <2 x i32> , %c2 %t1 = and <2 x i32> %k2, %t %t2 = icmp eq <2 x i32> %t1, zeroinitializer %t5 = and <2 x i32> %t4, %k2 %t6 = icmp eq <2 x i32> %t5, zeroinitializer %or = or <2 x i1> %t2, %t6 ret <2 x i1> %or } define i1 @or_consts(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @or_consts( ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[K:%.*]], 12 ; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 12 ; CHECK-NEXT: ret i1 [[TMP2]] ; %t1 = and i32 4, %k %t2 = icmp ne i32 %t1, 0 %t5 = and i32 8, %k %t6 = icmp ne i32 %t5, 0 %or = and i1 %t2, %t6 ret i1 %or } define i1 @or_consts_logical(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @or_consts_logical( ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[K:%.*]], 12 ; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 12 ; CHECK-NEXT: ret i1 [[TMP2]] ; %t1 = and i32 4, %k %t2 = icmp ne i32 %t1, 0 %t5 = and i32 8, %k %t6 = icmp ne i32 %t5, 0 %or = select i1 %t2, i1 %t6, i1 false ret i1 %or } define <2 x i1> @or_consts_vector(<2 x i32> %k, <2 x i32> %c1, <2 x i32> %c2) { ; CHECK-LABEL: @or_consts_vector( ; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i32> [[K:%.*]], ; CHECK-NEXT: [[TMP2:%.*]] = icmp eq <2 x i32> [[TMP1]], ; CHECK-NEXT: ret <2 x i1> [[TMP2]] ; %t1 = and <2 x i32> , %k %t2 = icmp ne <2 x i32> %t1, zeroinitializer %t5 = and <2 x i32> , %k %t6 = icmp ne <2 x i32> %t5, zeroinitializer %or = and <2 x i1> %t2, %t6 ret <2 x i1> %or } define i1 @foo1_or(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_or( ; CHECK-NEXT: [[T:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t = shl i32 1, %c1 %t4 = shl i32 1, %c2 %t1 = and i32 %t, %k %t2 = icmp ne i32 %t1, 0 %t5 = and i32 %t4, %k %t6 = icmp ne i32 %t5, 0 %or = and i1 %t2, %t6 ret i1 %or } define i1 @foo1_or_logical(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_or_logical( ; CHECK-NEXT: [[T:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t = shl i32 1, %c1 %t4 = shl i32 1, %c2 %t1 = and i32 %t, %k %t2 = icmp ne i32 %t1, 0 %t5 = and i32 %t4, %k %t6 = icmp ne i32 %t5, 0 %or = select i1 %t2, i1 %t6, i1 false ret i1 %or } define <2 x i1> @foo1_or_vector(<2 x i32> %k, <2 x i32> %c1, <2 x i32> %c2) { ; CHECK-LABEL: @foo1_or_vector( ; CHECK-NEXT: [[T:%.*]] = shl <2 x i32> , [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = shl <2 x i32> , [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or <2 x i32> [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp eq <2 x i32> [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret <2 x i1> [[TMP3]] ; %t = shl <2 x i32> , %c1 %t4 = shl <2 x i32> , %c2 %t1 = and <2 x i32> %t, %k %t2 = icmp ne <2 x i32> %t1, zeroinitializer %t5 = and <2 x i32> %t4, %k %t6 = icmp ne <2 x i32> %t5, zeroinitializer %or = and <2 x i1> %t2, %t6 ret <2 x i1> %or } ; Same as above but with operands commuted one of the ors, but not the other. define i1 @foo1_or_commuted(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_or_commuted( ; CHECK-NEXT: [[K2:%.*]] = mul i32 [[K:%.*]], [[K]] ; CHECK-NEXT: [[T:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[K2]], [[TMP1]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %k2 = mul i32 %k, %k ; to trick the complexity sorting %t = shl i32 1, %c1 %t4 = shl i32 1, %c2 %t1 = and i32 %k2, %t %t2 = icmp ne i32 %t1, 0 %t5 = and i32 %t4, %k2 %t6 = icmp ne i32 %t5, 0 %or = and i1 %t2, %t6 ret i1 %or } define i1 @foo1_or_commuted_logical(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_or_commuted_logical( ; CHECK-NEXT: [[K2:%.*]] = mul i32 [[K:%.*]], [[K]] ; CHECK-NEXT: [[T:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[K2]], [[TMP1]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %k2 = mul i32 %k, %k ; to trick the complexity sorting %t = shl i32 1, %c1 %t4 = shl i32 1, %c2 %t1 = and i32 %k2, %t %t2 = icmp ne i32 %t1, 0 %t5 = and i32 %t4, %k2 %t6 = icmp ne i32 %t5, 0 %or = select i1 %t2, i1 %t6, i1 false ret i1 %or } define <2 x i1> @foo1_or_commuted_vector(<2 x i32> %k, <2 x i32> %c1, <2 x i32> %c2) { ; CHECK-LABEL: @foo1_or_commuted_vector( ; CHECK-NEXT: [[K2:%.*]] = mul <2 x i32> [[K:%.*]], [[K]] ; CHECK-NEXT: [[T:%.*]] = shl <2 x i32> , [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = shl <2 x i32> , [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or <2 x i32> [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[K2]], [[TMP1]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp eq <2 x i32> [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret <2 x i1> [[TMP3]] ; %k2 = mul <2 x i32> %k, %k ; to trick the complexity sorting %t = shl <2 x i32> , %c1 %t4 = shl <2 x i32> , %c2 %t1 = and <2 x i32> %k2, %t %t2 = icmp ne <2 x i32> %t1, zeroinitializer %t5 = and <2 x i32> %t4, %k2 %t6 = icmp ne <2 x i32> %t5, zeroinitializer %or = and <2 x i1> %t2, %t6 ret <2 x i1> %or } define i1 @foo1_and_signbit_lshr(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_and_signbit_lshr( ; CHECK-NEXT: [[T:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = lshr i32 -2147483648, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t = shl i32 1, %c1 %t4 = lshr i32 -2147483648, %c2 %t1 = and i32 %t, %k %t2 = icmp eq i32 %t1, 0 %t5 = and i32 %t4, %k %t6 = icmp eq i32 %t5, 0 %or = or i1 %t2, %t6 ret i1 %or } define i1 @foo1_and_signbit_lshr_logical(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_and_signbit_lshr_logical( ; CHECK-NEXT: [[T:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = lshr i32 -2147483648, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t = shl i32 1, %c1 %t4 = lshr i32 -2147483648, %c2 %t1 = and i32 %t, %k %t2 = icmp eq i32 %t1, 0 %t5 = and i32 %t4, %k %t6 = icmp eq i32 %t5, 0 %or = select i1 %t2, i1 true, i1 %t6 ret i1 %or } define <2 x i1> @foo1_and_signbit_lshr_vector(<2 x i32> %k, <2 x i32> %c1, <2 x i32> %c2) { ; CHECK-LABEL: @foo1_and_signbit_lshr_vector( ; CHECK-NEXT: [[T:%.*]] = shl <2 x i32> , [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = lshr <2 x i32> , [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or <2 x i32> [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne <2 x i32> [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret <2 x i1> [[TMP3]] ; %t = shl <2 x i32> , %c1 %t4 = lshr <2 x i32> , %c2 %t1 = and <2 x i32> %t, %k %t2 = icmp eq <2 x i32> %t1, zeroinitializer %t5 = and <2 x i32> %t4, %k %t6 = icmp eq <2 x i32> %t5, zeroinitializer %or = or <2 x i1> %t2, %t6 ret <2 x i1> %or } define i1 @foo1_or_signbit_lshr(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_or_signbit_lshr( ; CHECK-NEXT: [[T:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = lshr i32 -2147483648, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t = shl i32 1, %c1 %t4 = lshr i32 -2147483648, %c2 %t1 = and i32 %t, %k %t2 = icmp ne i32 %t1, 0 %t5 = and i32 %t4, %k %t6 = icmp ne i32 %t5, 0 %or = and i1 %t2, %t6 ret i1 %or } define i1 @foo1_or_signbit_lshr_logical(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_or_signbit_lshr_logical( ; CHECK-NEXT: [[T:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = lshr i32 -2147483648, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t = shl i32 1, %c1 %t4 = lshr i32 -2147483648, %c2 %t1 = and i32 %t, %k %t2 = icmp ne i32 %t1, 0 %t5 = and i32 %t4, %k %t6 = icmp ne i32 %t5, 0 %or = select i1 %t2, i1 %t6, i1 false ret i1 %or } define <2 x i1> @foo1_or_signbit_lshr_vector(<2 x i32> %k, <2 x i32> %c1, <2 x i32> %c2) { ; CHECK-LABEL: @foo1_or_signbit_lshr_vector( ; CHECK-NEXT: [[T:%.*]] = shl <2 x i32> , [[C1:%.*]] ; CHECK-NEXT: [[T4:%.*]] = lshr <2 x i32> , [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or <2 x i32> [[T]], [[T4]] ; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp eq <2 x i32> [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret <2 x i1> [[TMP3]] ; %t = shl <2 x i32> , %c1 %t4 = lshr <2 x i32> , %c2 %t1 = and <2 x i32> %t, %k %t2 = icmp ne <2 x i32> %t1, zeroinitializer %t5 = and <2 x i32> %t4, %k %t6 = icmp ne <2 x i32> %t5, zeroinitializer %or = and <2 x i1> %t2, %t6 ret <2 x i1> %or } ; Same as last two, but shift-of-signbit replaced with 'icmp s*' define i1 @foo1_and_signbit_lshr_without_shifting_signbit(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 %t1 = and i32 %t0, %k %t2 = icmp eq i32 %t1, 0 %t3 = shl i32 %k, %c2 %t4 = icmp sgt i32 %t3, -1 %or = or i1 %t2, %t4 ret i1 %or } define i1 @foo1_and_signbit_lshr_without_shifting_signbit_logical(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 %t1 = and i32 %t0, %k %t2 = icmp eq i32 %t1, 0 %t3 = shl i32 %k, %c2 %t4 = icmp sgt i32 %t3, -1 %or = select i1 %t2, i1 true, i1 %t4 ret i1 %or } define i1 @foo1_or_signbit_lshr_without_shifting_signbit(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_or_signbit_lshr_without_shifting_signbit( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp ne i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp slt i32 [[T3]], 0 ; CHECK-NEXT: [[OR:%.*]] = and i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 %t1 = and i32 %t0, %k %t2 = icmp ne i32 %t1, 0 %t3 = shl i32 %k, %c2 %t4 = icmp slt i32 %t3, 0 %or = and i1 %t2, %t4 ret i1 %or } define i1 @foo1_or_signbit_lshr_without_shifting_signbit_logical(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_or_signbit_lshr_without_shifting_signbit_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp ne i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp slt i32 [[T3]], 0 ; CHECK-NEXT: [[OR:%.*]] = and i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 %t1 = and i32 %t0, %k %t2 = icmp ne i32 %t1, 0 %t3 = shl i32 %k, %c2 %t4 = icmp slt i32 %t3, 0 %or = select i1 %t2, i1 %t4, i1 false ret i1 %or } ; Shift-of-signbit replaced with 'icmp s*' for both sides define i1 @foo1_and_signbit_lshr_without_shifting_signbit_both_sides(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_both_sides( ; CHECK-NEXT: [[T0:%.*]] = shl i32 [[K:%.*]], [[C1:%.*]] ; CHECK-NEXT: [[T2:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[T0]], [[T2]] ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i32 [[TMP1]], -1 ; CHECK-NEXT: ret i1 [[TMP2]] ; %t0 = shl i32 %k, %c1 %t1 = icmp sgt i32 %t0, -1 %t2 = shl i32 %k, %c2 %t3 = icmp sgt i32 %t2, -1 %or = or i1 %t1, %t3 ret i1 %or } define i1 @foo1_and_signbit_lshr_without_shifting_signbit_both_sides_logical(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_both_sides_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 [[K:%.*]], [[C1:%.*]] ; CHECK-NEXT: [[T2:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[T0]], [[T2]] ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i32 [[TMP1]], -1 ; CHECK-NEXT: ret i1 [[TMP2]] ; %t0 = shl i32 %k, %c1 %t1 = icmp sgt i32 %t0, -1 %t2 = shl i32 %k, %c2 %t3 = icmp sgt i32 %t2, -1 %or = select i1 %t1, i1 true, i1 %t3 ret i1 %or } define i1 @foo1_or_signbit_lshr_without_shifting_signbit_both_sides(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_or_signbit_lshr_without_shifting_signbit_both_sides( ; CHECK-NEXT: [[T0:%.*]] = shl i32 [[K:%.*]], [[C1:%.*]] ; CHECK-NEXT: [[T2:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[T0]], [[T2]] ; CHECK-NEXT: [[TMP2:%.*]] = icmp slt i32 [[TMP1]], 0 ; CHECK-NEXT: ret i1 [[TMP2]] ; %t0 = shl i32 %k, %c1 %t1 = icmp slt i32 %t0, 0 %t2 = shl i32 %k, %c2 %t3 = icmp slt i32 %t2, 0 %or = and i1 %t1, %t3 ret i1 %or } define i1 @foo1_or_signbit_lshr_without_shifting_signbit_both_sides_logical(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_or_signbit_lshr_without_shifting_signbit_both_sides_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 [[K:%.*]], [[C1:%.*]] ; CHECK-NEXT: [[T2:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[T0]], [[T2]] ; CHECK-NEXT: [[TMP2:%.*]] = icmp slt i32 [[TMP1]], 0 ; CHECK-NEXT: ret i1 [[TMP2]] ; %t0 = shl i32 %k, %c1 %t1 = icmp slt i32 %t0, 0 %t2 = shl i32 %k, %c2 %t3 = icmp slt i32 %t2, 0 %or = select i1 %t1, i1 %t3, i1 false ret i1 %or } ; Extra use ; Expect to fold define i1 @foo1_and_extra_use_shl(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_extra_use_shl( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: store i32 [[T0]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[T1:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T0]], [[T1]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t0 = shl i32 1, %c1 store i32 %t0, i32* %p ; extra use of shl %t1 = shl i32 1, %c2 %t2 = and i32 %t0, %k %t3 = icmp eq i32 %t2, 0 %t4 = and i32 %t1, %k %t5 = icmp eq i32 %t4, 0 %or = or i1 %t3, %t5 ret i1 %or } define i1 @foo1_and_extra_use_shl_logical(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_extra_use_shl_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: store i32 [[T0]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[T1:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T0]], [[T1]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t0 = shl i32 1, %c1 store i32 %t0, i32* %p ; extra use of shl %t1 = shl i32 1, %c2 %t2 = and i32 %t0, %k %t3 = icmp eq i32 %t2, 0 %t4 = and i32 %t1, %k %t5 = icmp eq i32 %t4, 0 %or = select i1 %t3, i1 true, i1 %t5 ret i1 %or } ; Should not fold define i1 @foo1_and_extra_use_and(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_extra_use_and( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[T2:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: store i32 [[T2]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T0]], [[T1]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t0 = shl i32 1, %c1 %t1 = shl i32 1, %c2 %t2 = and i32 %t0, %k store i32 %t2, i32* %p ; extra use of and %t3 = icmp eq i32 %t2, 0 %t4 = and i32 %t1, %k %t5 = icmp eq i32 %t4, 0 %or = or i1 %t3, %t5 ret i1 %or } define i1 @foo1_and_extra_use_and_logical(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_extra_use_and_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[T2:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: store i32 [[T2]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T0]], [[T1]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t0 = shl i32 1, %c1 %t1 = shl i32 1, %c2 %t2 = and i32 %t0, %k store i32 %t2, i32* %p ; extra use of and %t3 = icmp eq i32 %t2, 0 %t4 = and i32 %t1, %k %t5 = icmp eq i32 %t4, 0 %or = select i1 %t3, i1 true, i1 %t5 ret i1 %or } ; Should not fold define i1 @foo1_and_extra_use_cmp(i32 %k, i32 %c1, i32 %c2, i1* %p) { ; CHECK-LABEL: @foo1_and_extra_use_cmp( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[T2:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T3:%.*]] = icmp eq i32 [[T2]], 0 ; CHECK-NEXT: store i1 [[T3]], i1* [[P:%.*]], align 1 ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T0]], [[T1]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t0 = shl i32 1, %c1 %t1 = shl i32 1, %c2 %t2 = and i32 %t0, %k %t3 = icmp eq i32 %t2, 0 store i1 %t3, i1* %p ; extra use of cmp %t4 = and i32 %t1, %k %t5 = icmp eq i32 %t4, 0 %or = or i1 %t3, %t5 ret i1 %or } define i1 @foo1_and_extra_use_cmp_logical(i32 %k, i32 %c1, i32 %c2, i1* %p) { ; CHECK-LABEL: @foo1_and_extra_use_cmp_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[T2:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T3:%.*]] = icmp eq i32 [[T2]], 0 ; CHECK-NEXT: store i1 [[T3]], i1* [[P:%.*]], align 1 ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T0]], [[T1]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t0 = shl i32 1, %c1 %t1 = shl i32 1, %c2 %t2 = and i32 %t0, %k %t3 = icmp eq i32 %t2, 0 store i1 %t3, i1* %p ; extra use of cmp %t4 = and i32 %t1, %k %t5 = icmp eq i32 %t4, 0 %or = select i1 %t3, i1 true, i1 %t5 ret i1 %or } ; Expect to fold define i1 @foo1_and_extra_use_shl2(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_extra_use_shl2( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: store i32 [[T1]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T0]], [[T1]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t0 = shl i32 1, %c1 %t1 = shl i32 1, %c2 store i32 %t1, i32* %p ; extra use of shl %t2 = and i32 %t0, %k %t3 = icmp eq i32 %t2, 0 %t4 = and i32 %t1, %k %t5 = icmp eq i32 %t4, 0 %or = or i1 %t3, %t5 ret i1 %or } define i1 @foo1_and_extra_use_shl2_logical(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_extra_use_shl2_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: store i32 [[T1]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T0]], [[T1]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K:%.*]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t0 = shl i32 1, %c1 %t1 = shl i32 1, %c2 store i32 %t1, i32* %p ; extra use of shl %t2 = and i32 %t0, %k %t3 = icmp eq i32 %t2, 0 %t4 = and i32 %t1, %k %t5 = icmp eq i32 %t4, 0 %or = select i1 %t3, i1 true, i1 %t5 ret i1 %or } ; Should not fold define i1 @foo1_and_extra_use_and2(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_extra_use_and2( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = and i32 [[T1]], [[K:%.*]] ; CHECK-NEXT: store i32 [[T4]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T0]], [[T1]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t0 = shl i32 1, %c1 %t1 = shl i32 1, %c2 %t2 = and i32 %t0, %k %t3 = icmp eq i32 %t2, 0 %t4 = and i32 %t1, %k store i32 %t4, i32* %p ; extra use of and %t5 = icmp eq i32 %t4, 0 %or = or i1 %t3, %t5 ret i1 %or } define i1 @foo1_and_extra_use_and2_logical(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_extra_use_and2_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = and i32 [[T1]], [[K:%.*]] ; CHECK-NEXT: store i32 [[T4]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T0]], [[T1]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t0 = shl i32 1, %c1 %t1 = shl i32 1, %c2 %t2 = and i32 %t0, %k %t3 = icmp eq i32 %t2, 0 %t4 = and i32 %t1, %k store i32 %t4, i32* %p ; extra use of and %t5 = icmp eq i32 %t4, 0 %or = select i1 %t3, i1 true, i1 %t5 ret i1 %or } ; Should not fold define i1 @foo1_and_extra_use_cmp2(i32 %k, i32 %c1, i32 %c2, i1* %p) { ; CHECK-LABEL: @foo1_and_extra_use_cmp2( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = and i32 [[T1]], [[K:%.*]] ; CHECK-NEXT: [[T5:%.*]] = icmp eq i32 [[T4]], 0 ; CHECK-NEXT: store i1 [[T5]], i1* [[P:%.*]], align 1 ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T0]], [[T1]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t0 = shl i32 1, %c1 %t1 = shl i32 1, %c2 %t2 = and i32 %t0, %k %t3 = icmp eq i32 %t2, 0 %t4 = and i32 %t1, %k %t5 = icmp eq i32 %t4, 0 store i1 %t5, i1* %p ; extra use of cmp %or = or i1 %t3, %t5 ret i1 %or } define i1 @foo1_and_extra_use_cmp2_logical(i32 %k, i32 %c1, i32 %c2, i1* %p) { ; CHECK-LABEL: @foo1_and_extra_use_cmp2_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = shl i32 1, [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = and i32 [[T1]], [[K:%.*]] ; CHECK-NEXT: [[T5:%.*]] = icmp eq i32 [[T4]], 0 ; CHECK-NEXT: store i1 [[T5]], i1* [[P:%.*]], align 1 ; CHECK-NEXT: [[TMP1:%.*]] = or i32 [[T0]], [[T1]] ; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], [[K]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ne i32 [[TMP2]], [[TMP1]] ; CHECK-NEXT: ret i1 [[TMP3]] ; %t0 = shl i32 1, %c1 %t1 = shl i32 1, %c2 %t2 = and i32 %t0, %k %t3 = icmp eq i32 %t2, 0 %t4 = and i32 %t1, %k %t5 = icmp eq i32 %t4, 0 store i1 %t5, i1* %p ; extra use of cmp %or = select i1 %t3, i1 true, i1 %t5 ret i1 %or } ; Shift-of-signbit replaced with 'icmp s*' ; Expect to fold define i1 @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_shl1(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_shl1( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: store i32 [[T0]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 store i32 %t0, i32* %p ; extra use of shl %t1 = and i32 %t0, %k %t2 = icmp eq i32 %t1, 0 %t3 = shl i32 %k, %c2 %t4 = icmp sgt i32 %t3, -1 %or = or i1 %t2, %t4 ret i1 %or } define i1 @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_shl1_logical(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_shl1_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: store i32 [[T0]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 store i32 %t0, i32* %p ; extra use of shl %t1 = and i32 %t0, %k %t2 = icmp eq i32 %t1, 0 %t3 = shl i32 %k, %c2 %t4 = icmp sgt i32 %t3, -1 %or = select i1 %t2, i1 true, i1 %t4 ret i1 %or } ; Not fold define i1 @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_and(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_and( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: store i32 [[T1]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 %t1 = and i32 %t0, %k store i32 %t1, i32* %p ; extra use of and %t2 = icmp eq i32 %t1, 0 %t3 = shl i32 %k, %c2 %t4 = icmp sgt i32 %t3, -1 %or = or i1 %t2, %t4 ret i1 %or } define i1 @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_and_logical(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_and_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: store i32 [[T1]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 %t1 = and i32 %t0, %k store i32 %t1, i32* %p ; extra use of and %t2 = icmp eq i32 %t1, 0 %t3 = shl i32 %k, %c2 %t4 = icmp sgt i32 %t3, -1 %or = select i1 %t2, i1 true, i1 %t4 ret i1 %or } ; Not fold define i1 @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_cmp1(i32 %k, i32 %c1, i32 %c2, i1* %p) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_cmp1( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: store i1 [[T2]], i1* [[P:%.*]], align 1 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 %t1 = and i32 %t0, %k %t2 = icmp eq i32 %t1, 0 store i1 %t2, i1* %p ; extra use of cmp %t3 = shl i32 %k, %c2 %t4 = icmp sgt i32 %t3, -1 %or = or i1 %t2, %t4 ret i1 %or } define i1 @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_cmp1_logical(i32 %k, i32 %c1, i32 %c2, i1* %p) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_cmp1_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: store i1 [[T2]], i1* [[P:%.*]], align 1 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 %t1 = and i32 %t0, %k %t2 = icmp eq i32 %t1, 0 store i1 %t2, i1* %p ; extra use of cmp %t3 = shl i32 %k, %c2 %t4 = icmp sgt i32 %t3, -1 %or = select i1 %t2, i1 true, i1 %t4 ret i1 %or } ; Not fold define i1 @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_shl2(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_shl2( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: store i32 [[T3]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 %t1 = and i32 %t0, %k %t2 = icmp eq i32 %t1, 0 %t3 = shl i32 %k, %c2 store i32 %t3, i32* %p ; extra use of shl %t4 = icmp sgt i32 %t3, -1 %or = or i1 %t2, %t4 ret i1 %or } define i1 @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_shl2_logical(i32 %k, i32 %c1, i32 %c2, i32* %p) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_shl2_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: store i32 [[T3]], i32* [[P:%.*]], align 4 ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 %t1 = and i32 %t0, %k %t2 = icmp eq i32 %t1, 0 %t3 = shl i32 %k, %c2 store i32 %t3, i32* %p ; extra use of shl %t4 = icmp sgt i32 %t3, -1 %or = select i1 %t2, i1 true, i1 %t4 ret i1 %or } ; Not fold define i1 @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_cmp2(i32 %k, i32 %c1, i32 %c2, i1* %p) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_cmp2( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: store i1 [[T4]], i1* [[P:%.*]], align 1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 %t1 = and i32 %t0, %k %t2 = icmp eq i32 %t1, 0 %t3 = shl i32 %k, %c2 %t4 = icmp sgt i32 %t3, -1 store i1 %t4, i1* %p ; extra use of cmp %or = or i1 %t2, %t4 ret i1 %or } define i1 @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_cmp2_logical(i32 %k, i32 %c1, i32 %c2, i1* %p) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_extra_use_cmp2_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 1, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: store i1 [[T4]], i1* [[P:%.*]], align 1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 1, %c1 %t1 = and i32 %t0, %k %t2 = icmp eq i32 %t1, 0 %t3 = shl i32 %k, %c2 %t4 = icmp sgt i32 %t3, -1 store i1 %t4, i1* %p ; extra use of cmp %or = select i1 %t2, i1 true, i1 %t4 ret i1 %or } ; Negative tests ; This test checks that we are not creating additional shift instruction when fold fails. define i1 @foo1_and_signbit_lshr_without_shifting_signbit_not_pwr2(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_not_pwr2( ; CHECK-NEXT: [[T0:%.*]] = shl i32 3, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 3, %c1 %t1 = and i32 %t0, %k %t2 = icmp eq i32 %t1, 0 %t3 = shl i32 %k, %c2 %t4 = icmp sgt i32 %t3, -1 %or = or i1 %t2, %t4 ret i1 %or } define i1 @foo1_and_signbit_lshr_without_shifting_signbit_not_pwr2_logical(i32 %k, i32 %c1, i32 %c2) { ; CHECK-LABEL: @foo1_and_signbit_lshr_without_shifting_signbit_not_pwr2_logical( ; CHECK-NEXT: [[T0:%.*]] = shl i32 3, [[C1:%.*]] ; CHECK-NEXT: [[T1:%.*]] = and i32 [[T0]], [[K:%.*]] ; CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0 ; CHECK-NEXT: [[T3:%.*]] = shl i32 [[K]], [[C2:%.*]] ; CHECK-NEXT: [[T4:%.*]] = icmp sgt i32 [[T3]], -1 ; CHECK-NEXT: [[OR:%.*]] = or i1 [[T2]], [[T4]] ; CHECK-NEXT: ret i1 [[OR]] ; %t0 = shl i32 3, %c1 %t1 = and i32 %t0, %k %t2 = icmp eq i32 %t1, 0 %t3 = shl i32 %k, %c2 %t4 = icmp sgt i32 %t3, -1 %or = select i1 %t2, i1 true, i1 %t4 ret i1 %or }