llvm-mirror/test/TableGen/IntSpecialValues.td
Simon Tatham f622a83e0d [TableGen] Allow 2^63-1 and 2^63-2 as int literals.
These two values correspond to the 'Empty' and 'Tombstone' special
keys defined by DenseMapInfo<int64_t>, which means that neither one
can be used as a key in DenseMap<int64_t, anything>. Hence, if you try
to use either of those values as an int literal, IntInit::get() fails
an assertion when it tries to insert them into its static cache of
int-literal objects.

Fixed by replacing the DenseMap with a std::map, which doesn't intrude
on the space of legal values of the key type.

Reviewers: nhaehnle, hfinkel, javedabsar, efriedma

Reviewed By: efriedma

Subscribers: fhahn, efriedma, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D59016

llvm-svn: 355900
2019-03-12 09:28:19 +00:00

9 lines
200 B
TableGen

// RUN: llvm-tblgen %s | FileCheck %s
def TestRecord {
// CHECK: int X = 9223372036854775807;
int X = 0x7FFFFFFFFFFFFFFF;
// CHECK: int Y = 9223372036854775806;
int Y = 0x7FFFFFFFFFFFFFFE;
}