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llvm-mirror/test/TableGen/substr.td
Paul C. Anagnostopoulos 1c400b3882 [TableGen] Add the !substr() bang operator
Update the documentation and add a test.

Build failed: Change SIZE_MAX to std::numeric_limits<int64_t>::max().

Differential Revision: https://reviews.llvm.org/D93419
2020-12-23 10:59:33 -05:00

82 lines
2.2 KiB
TableGen

// RUN: llvm-tblgen %s | FileCheck %s
// RUN: not llvm-tblgen -DERROR1 %s 2>&1 | FileCheck --check-prefix=ERROR1 %s
defvar claim = "This is the end of the world!";
// CHECK: def Rec1
// CHECK: fullNoLength = "This is the end of the world!";
// CHECK: fullLength = "This is the end of the world!";
// CHECK: thisIsTheEnd = "This is the end";
// CHECK: DoorsSong = "the end";
// CHECK: finalNoLength = "end of the world!";
// CHECK: finalLength = "end of the world!";
def Rec1 {
string fullNoLength = !substr(claim, 0);
string fullLength = !substr(claim, 0, 999);
string thisIsTheEnd = !substr(claim, 0, 15);
string DoorsSong = !substr(claim, 8, 7);
string finalNoLength = !substr(claim, 12);
string finalLength = !substr(claim, 12, !sub(!size(claim), 12));
}
// CHECK: def Rec2 {
// CHECK: lastName = "Flintstone";
def Rec2 {
string firstName = "Fred";
string name = firstName # " " # "Flintstone";
string lastName = !substr(name, !add(!size(firstName), 1));
}
// CHECK: def Rec3 {
// CHECK: test1 = "";
// CHECK: test2 = "";
// CHECK: test3 = "";
// CHECK: test4 = "h";
// CHECK: test5 = "hello";
// CHECK: test6 = "";
def Rec3 {
string test1 = !substr("", 0, 0);
string test2 = !substr("", 0, 9);
string test3 = !substr("hello", 0, 0);
string test4 = !substr("hello", 0, 1);
string test5 = !substr("hello", 0, 99);
string test6 = !substr("hello", 5, 99);
}
// CHECK: def Rec4
// CHECK: message = "This is the end of the world!";
// CHECK: messagePrefix = "This is th...";
// CHECK: warning = "Bad message: 'This is th...'";
class C<string msg> {
string message = msg;
string messagePrefix = !substr(message, 0, 10) # "...";
}
def Rec4 : C<claim> {
string warning = "Bad message: '" # messagePrefix # "'";
}
#ifdef ERROR1
// ERROR1: expected string, got type 'int'
// ERROR1: expected int, got type 'bits<3>'
// ERROR1: expected int, got type 'string'
// ERROR1: !substr start position is out of range 0...29: 30
// ERROR1: !substr length must be nonnegative
def Rec8 {
string claim1 = !substr(42, 0, 3);
string claim2 = !substr(claim, 0b101);
string claim3 = !substr(claim, 0, "oops");
}
def Rec9 {
string claim1 = !substr(claim, !add(!size(claim), 1));
string claim2 = !substr(claim, 0, -13);
}
#endif