diff options
| author | Craig Topper <craig.topper@sifive.com> | 2023-02-17 10:53:44 -0800 |
|---|---|---|
| committer | Craig Topper <craig.topper@sifive.com> | 2023-02-17 10:53:44 -0800 |
| commit | 2b2b8409e6848361577be404bd0ae47a097f0e0c (patch) | |
| tree | 6b86d8b5077ecfee534ae397eee8bad733ca297b /llvm/lib/TextAPI/InterfaceFile.cpp | |
| parent | efe7c4b77bed76ef3af6fd018122b428c21512b7 (diff) | |
| download | llvm-2b2b8409e6848361577be404bd0ae47a097f0e0c.zip llvm-2b2b8409e6848361577be404bd0ae47a097f0e0c.tar.gz llvm-2b2b8409e6848361577be404bd0ae47a097f0e0c.tar.bz2 | |
[RISCV] For rv32, accept constants like 0xfffff800 as a valid simm12.
Internally we store constants in int64_t after parsing, but this is
kind of an implementation detail. If we only supported rv32, we might
have chosen int32_t.
For rv32, I think it makes sense to accept the constants that we
would accept if int32_t was the internal type. In fact we already
do this for the `li` alias. This patch extends this to sign
extended constants for other instructions.
This matches the GNU assembler. The difference between LLVM and gcc
was previously noted here. https://github.com/riscv-non-isa/riscv-asm-manual/pull/71
Reviewed By: reames
Differential Revision: https://reviews.llvm.org/D144166
Diffstat (limited to 'llvm/lib/TextAPI/InterfaceFile.cpp')
0 files changed, 0 insertions, 0 deletions