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64d5aedd06
This patch adds base 2 logarithm that returns integer result. I initially wanted to name it `!log2`, but numbers are not permitted in the name. The documentation makes sure to clarify that it is base 2 since it is not explicit in the operator name. Differential Revision: https://reviews.llvm.org/D134068
146 lines
3.1 KiB
TableGen
146 lines
3.1 KiB
TableGen
// RUN: llvm-tblgen %s | FileCheck %s
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// RUN: not llvm-tblgen -DERROR1 %s 2>&1 | FileCheck --check-prefix=ERROR1 %s
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// RUN: not llvm-tblgen -DERROR2 %s 2>&1 | FileCheck --check-prefix=ERROR2 %s
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// RUN: not llvm-tblgen -DERROR3 %s 2>&1 | FileCheck --check-prefix=ERROR3 %s
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// RUN: not llvm-tblgen -DERROR4 %s 2>&1 | FileCheck --check-prefix=ERROR4 %s
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// XFAIL: vg_leak
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// CHECK: def shifts
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// CHECK: shifted_b = 8
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// CHECK: shifted_i = 8
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def shifts {
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bits<2> b = 0b10;
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int i = 2;
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int shifted_b = !shl(b, 2);
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int shifted_i = !shl(i, 2);
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}
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class Int<int value> {
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int Value = value;
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}
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def int2 : Int<2>;
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def int1022 : Int<1022>;
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def int1024 : Int<1024>;
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// CHECK: def v0a
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// CHECK: Value = 0
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def v0a : Int<!sub(int1024.Value, int1024.Value)>;
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// CHECK: def v0b
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// CHECK: Value = 0
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def v0b : Int<!and(int1024.Value, 2048)>;
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// CHECK: def v1
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// CHECK: Value = 1
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def v1 : Int<!and(1025, 1)>;
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// CHECK: def v1019
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// CHECK: Value = 1019
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def v1019 : Int<!sub(int1022.Value, 3)>;
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// CHECK: def v1023
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// CHECK: Value = 1023
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def v1023 : Int<!or(int1022.Value, 1)>;
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def v1025 : Int<!add(int1024.Value, 1)>;
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// CHECK: def v1025
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// CHECK: Value = 1025
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// CHECK: def v12
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// CHECK: Value = 12
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def v12 : Int<!mul(4, 3)>;
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// CHECK: def v13
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// CHECK: Value = 5
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def v13 : Int<!div(10, 2)>;
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// CHECK: def v14
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// CHECK: Value = 5
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def v14 : Int<!div(11, 2)>;
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// CHECK: def v15
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// CHECK: Value = 1
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def v15 : Int<!div(1, 1)>;
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// CHECK: def v16
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// CHECK: Value = 0
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def v16 : Int<!div(0, 10)>;
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// CHECK: def v17
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// CHECK: Value = -2
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def v17 : Int<!div(-8, 4)>;
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#ifdef ERROR1
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// ERROR1: error: Illegal operation: division by zero
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def v18 : Int<!div(4, 0)>;
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#endif
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#ifdef ERROR2
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// ERROR2: error: Illegal operation: INT64_MIN / -1
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def v19 : Int<!div(-9223372036854775808, -1)>;
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#endif
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// CHECK: def v1a
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// CHECK: Value = 1
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// CHECK: def v2048
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// CHECK: Value = 2048
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def v2048 : Int<!add(int1024.Value, int1024.Value)>;
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// CHECK: def v3072
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// CHECK: Value = 3072
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def v3072 : Int<!or(int1024.Value, v2048.Value)>;
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// CHECK: def v4
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// CHECK: Value = 4
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// CHECK: def v7
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// CHECK: Value = 7
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def v4 : Int<!add(int2.Value, 1, v1.Value)>;
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def v7 : Int<!or(v1.Value, int2.Value, v4.Value)>;
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def v1a : Int<!and(v7.Value, 5, v1.Value)>;
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// CHECK: def v84
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// CHECK: Value = 84
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def v84 : Int<!mul(v12.Value, v7.Value)>;
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// CHECK: def v9
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// CHECK: Value = 9
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def v9 : Int<!xor(v7.Value, 0x0E)>;
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// CHECK: def v924
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// CHECK: Value = 924
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def v924 : Int<!mul(v84.Value, 11)>;
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// CHECK: def v925
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// CHECK: Value = 925
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def v925 : Int<!sub(v924.Value, -1)>;
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// CHECK: def v950
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// CHECK: Value = 4
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def v950: Int<!logtwo(16)>;
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// CHECK: def v951
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// CHECK: Value = 10
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def v951 : Int<!logtwo(1024)>;
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// CHECK: def v952
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// CHECK: Value = 10
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def v952 : Int<!logtwo(1025)>;
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#ifdef ERROR3
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// ERROR3: error: Illegal operation: logtwo is undefined on arguments less than or equal to 0
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def v953 : Int<!logtwo(0)>;
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#endif
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#ifdef ERROR4
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// ERROR4: error: Illegal operation: logtwo is undefined on arguments less than or equal to 0
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def v954 : Int<!logtwo(-1)>;
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#endif
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// CHECK: def vneg
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// CHECK: Value = -2
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def vneg : Int<!sub(v925.Value, 927)>;
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