The integrated assembler evaluates the expressions such as ~0x80000000 to
0xffffffff7fffffff early in the parsing process. This patch adds compatibility
with gas so that li loads the expected value (0x7fffffff) in those cases. This
only occurs iff all the upper 32bits are set and maintains existing checks by
not truncating the result down to 32 bits if any of the the upper bits are not
set.
Reviewers: dsanders, zoran.jovanovic
Differential Review: https://reviews.llvm.org/D23399
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283353 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
- Signed 16-bit should have priority over unsigned.
- For la, unsigned 16-bit must use ori+addu rather than directly use ori.
- Correct tests on 32-bit immediates with 64-bit predicates by
sign-extending the immediate beforehand. For example, isInt<16>(0xffff8000)
should be true and use addiu.
Also split li/la testing into separate files due to their size.
Reviewers: vkalintiris
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D10967
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242139 91177308-0d34-0410-b5e6-96231b3b80d8
