blob: a6af59e72830d3d7b56c4750a8dee2a7ad3f7ff5 [file] [log] [blame]
Peter Collingbourne5d5c0622011-10-06 13:39:59 +00001// RUN: llvm-tblgen %s | FileCheck %s
NAKAMURA Takumia22657f2013-11-10 14:26:08 +00002// XFAIL: vg_leak
David Greene9bea7c82009-05-14 23:26:46 +00003
Bill Wendling548f5a0b2010-12-13 01:46:19 +00004// Support for an `!if' operator as part of a `let' statement.
5// CHECK: class C
Pete Cooper2093e2c2014-08-07 05:47:04 +00006// 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} };
Bill Wendling548f5a0b2010-12-13 01:46:19 +00007class C<bits<3> x, bits<4> y, bit z> {
8 bits<16> n;
9
Michael Liao307525c2012-09-06 23:32:48 +000010 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}, ?)));
Bill Wendling548f5a0b2010-12-13 01:46:19 +000017 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
Michael Liao307525c2012-09-06 23:32:48 +000022def C1 : C<{1, 0, 1}, {0, 1, 0, 1}, 0>;
23def C2 : C<{0, 1, 0}, {1, 0, 1, 0}, 1>;
24def C3 : C<{0, 0, 0}, {1, 0, 1, 0}, 0>;
25def 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
36class 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
43def D8 : S<8>;
44def D16 : S<16>;
45def D32 : S<32>;
46def D64 : S<64>;
47def 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
Artem Belevich34517fa2018-01-30 19:29:21 +000059// Make sure !if gets propagated across multiple layers of inheritance.
60class getInt<int c> {
61 int ret = !if(c, 0, 1);
62}
63class I1<int c> {
64 int i = getInt<c>.ret;
65}
66class I2<int c> : I1<c>;
67
68// CHECK: def DI1 { // I1
69// CHECK-NEXT: int i = 0;
70def DI1: I1<1>;
71
Nicolai Haehnleaba588d2018-02-23 11:31:49 +000072// CHECK: def DI2 { // I1 I2
Artem Belevich34517fa2018-01-30 19:29:21 +000073// CHECK-NEXT: int i = 0;
74def DI2: I2<1>;
75
Nicolai Haehnlec1dad062018-03-06 13:48:20 +000076// 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: }
86class E<int dummy> {}
87class E1<int dummy> : E<dummy> {}
88class E2<int dummy> : E<dummy> {}
89
90class EX<int cc, E1 b, E2 c> {
91 E x = !if(cc, b, c);
92}
93
94def E1d : E1<0>;
95def E2d : E2<0>;
96
97def EXd1 : EX<1, E1d, E2d>;
98def EXd2 : EX<0, E1d, E2d>;
99
Bill Wendling548f5a0b2010-12-13 01:46:19 +0000100// 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
David Greene9bea7c82009-05-14 23:26:46 +0000114class A<list<list<int>> vals> {
115 list<int> first = vals[0];
David Greene1434f662011-01-07 17:05:37 +0000116 list<int> rest = !if(!empty(!tail(vals)), vals[0], vals[1]);
David Greene9bea7c82009-05-14 23:26:46 +0000117}
118
119def One : A<[[1,2,3]]>;
Bill Wendling548f5a0b2010-12-13 01:46:19 +0000120def Two : A<[[1,2,3], [4,5,6]]>;
David Greene9bea7c82009-05-14 23:26:46 +0000121
122class B<list<int> v> {
123 list<int> vals = v;
124}
125
David Greene1434f662011-01-07 17:05:37 +0000126class BB<list<list<int>> vals> : B<!if(!empty(!tail(vals)), vals[0], vals[1])>;
David Greene9bea7c82009-05-14 23:26:46 +0000127class BBB<list<list<int>> vals> : BB<vals>;
128
129def OneB : BBB<[[1,2,3]]>;
130def TwoB : BBB<[[1,2,3],[4,5,6]]>;