1 // RUN: llvm-tblgen %s | FileCheck %s 2 // XFAIL: vg_leak 3 4 // Support for an `!if' operator as part of a `let' statement. 5 // CHECK: class C 6 // CHECK-NEXT: bits<16> n = { ?, ?, ?, ?, !if({ C:y{3} }, 1, !if({ C:y{2} }, { C:x{0} }, !if({ C:y{1} }, { C:x{1} }, !if({ C:y{0} }, { C:x{2} }, ?)))){0}, !if({ C:x{2} }, { C:y{3}, C:y{2} }, !if({ C:x{1} }, { C:y{2}, C:y{1} }, !if({ C:x{0} }, { C:y{1}, C:y{0} }, ?))){1}, !if({ C:x{2} }, { C:y{3}, C:y{2} }, !if({ C:x{1} }, { C:y{2}, C:y{1} }, !if({ C:x{0} }, { C:y{1}, C:y{0} }, ?))){0}, !if({ C:x{2} }, { 0, 1, 0 }, { 1, 1, 0 }){2}, !if({ C:x{2} }, { 0, 1, 0 }, { 1, 1, 0 }){1}, !if({ C:x{2} }, { 0, 1, 0 }, { 1, 1, 0 }){0}, !if({ C:x{1} }, { C:y{3}, C:y{2} }, { 0, 1 }){1}, !if({ C:x{1} }, { C:y{3}, C:y{2} }, { 0, 1 }){0}, !if({ C:x{0} }, { C:y{3}, C:y{2}, C:y{1}, C:y{0} }, { C:z, C:y{2}, C:y{1}, C:y{0} }){3}, !if({ C:x{0} }, { C:y{3}, C:y{2}, C:y{1}, C:y{0} }, { C:z, C:y{2}, C:y{1}, C:y{0} }){2}, !if({ C:x{0} }, { C:y{3}, C:y{2}, C:y{1}, C:y{0} }, { C:z, C:y{2}, C:y{1}, C:y{0} }){1}, !if({ C:x{0} }, { C:y{3}, C:y{2}, C:y{1}, C:y{0} }, { C:z, C:y{2}, C:y{1}, C:y{0} }){0} }; 7 class C<bits<3> x, bits<4> y, bit z> { 8 bits<16> n; 9 10 let n{11} = !if(y{3}, 1, 11 !if(y{2}, x{0}, 12 !if(y{1}, x{1}, 13 !if(y{0}, x{2}, ?)))); 14 let n{10-9}= !if(x{2}, y{3-2}, 15 !if(x{1}, y{2-1}, 16 !if(x{0}, y{1-0}, ?))); 17 let n{8-6} = !if(x{2}, 0b010, 0b110); 18 let n{5-4} = !if(x{1}, y{3-2}, {0, 1}); 19 let n{3-0} = !if(x{0}, y{3-0}, {z, y{2}, y{1}, y{0}}); 20 } 21 22 def C1 : C<{1, 0, 1}, {0, 1, 0, 1}, 0>; 23 def C2 : C<{0, 1, 0}, {1, 0, 1, 0}, 1>; 24 def C3 : C<{0, 0, 0}, {1, 0, 1, 0}, 0>; 25 def C4 : C<{0, 0, 0}, {0, 0, 0, 0}, 0>; 26 27 // CHECK: def C1 28 // CHECK-NEXT: bits<16> n = { ?, ?, ?, ?, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1 }; 29 // CHECK: def C2 30 // CHECK-NEXT: bits<16> n = { ?, ?, ?, ?, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0 }; 31 // CHECK: def C3 32 // CHECK-NEXT: bits<16> n = { ?, ?, ?, ?, 1, ?, ?, 1, 1, 0, 0, 1, 0, 0, 1, 0 }; 33 // CHECK: def C4 34 // CHECK-NEXT: bits<16> n = { ?, ?, ?, ?, ?, ?, ?, 1, 1, 0, 0, 1, 0, 0, 0, 0 }; 35 36 class S<int s> { 37 bits<2> val = !if(!eq(s, 8), {0, 0}, 38 !if(!eq(s, 16), 0b01, 39 !if(!eq(s, 32), 2, 40 !if(!eq(s, 64), {1, 1}, ?)))); 41 } 42 43 def D8 : S<8>; 44 def D16 : S<16>; 45 def D32 : S<32>; 46 def D64 : S<64>; 47 def D128: S<128>; 48 // CHECK: def D128 49 // CHECK-NEXT: bits<2> val = { ?, ? }; 50 // CHECK: def D16 51 // CHECK-NEXT: bits<2> val = { 0, 1 }; 52 // CHECK: def D32 53 // CHECK-NEXT: bits<2> val = { 1, 0 }; 54 // CHECK: def D64 55 // CHECK-NEXT: bits<2> val = { 1, 1 }; 56 // CHECK: def D8 57 // CHECK-NEXT: bits<2> val = { 0, 0 }; 58 59 // Make sure !if gets propagated across multiple layers of inheritance. 60 class getInt<int c> { 61 int ret = !if(c, 0, 1); 62 } 63 class I1<int c> { 64 int i = getInt<c>.ret; 65 } 66 class I2<int c> : I1<c>; 67 68 // CHECK: def DI1 { // I1 69 // CHECK-NEXT: int i = 0; 70 def DI1: I1<1>; 71 72 // CHECK: def DI2 { // I1 I2 73 // CHECK-NEXT: int i = 0; 74 def DI2: I2<1>; 75 76 // Check that !if with operands of different subtypes can initialize a 77 // supertype variable. 78 // 79 // CHECK: def EXd1 { 80 // CHECK: E x = E1d; 81 // CHECK: } 82 // 83 // CHECK: def EXd2 { 84 // CHECK: E x = E2d; 85 // CHECK: } 86 class E<int dummy> {} 87 class E1<int dummy> : E<dummy> {} 88 class E2<int dummy> : E<dummy> {} 89 90 class EX<int cc, E1 b, E2 c> { 91 E x = !if(cc, b, c); 92 } 93 94 def E1d : E1<0>; 95 def E2d : E2<0>; 96 97 def EXd1 : EX<1, E1d, E2d>; 98 def EXd2 : EX<0, E1d, E2d>; 99 100 // CHECK: def One 101 // CHECK-NEXT: list<int> first = [1, 2, 3]; 102 // CHECK-NEXT: list<int> rest = [1, 2, 3]; 103 104 // CHECK: def OneB 105 // CHECK-NEXT: list<int> vals = [1, 2, 3]; 106 107 // CHECK: def Two 108 // CHECK-NEXT: list<int> first = [1, 2, 3]; 109 // CHECK-NEXT: list<int> rest = [4, 5, 6]; 110 111 // CHECK: def TwoB 112 // CHECK-NEXT: list<int> vals = [4, 5, 6]; 113 114 class A<list<list<int>> vals> { 115 list<int> first = vals[0]; 116 list<int> rest = !if(!empty(!tail(vals)), vals[0], vals[1]); 117 } 118 119 def One : A<[[1,2,3]]>; 120 def Two : A<[[1,2,3], [4,5,6]]>; 121 122 class B<list<int> v> { 123 list<int> vals = v; 124 } 125 126 class BB<list<list<int>> vals> : B<!if(!empty(!tail(vals)), vals[0], vals[1])>; 127 class BBB<list<list<int>> vals> : BB<vals>; 128 129 def OneB : BBB<[[1,2,3]]>; 130 def TwoB : BBB<[[1,2,3],[4,5,6]]>; 131