3 Commits

Author	SHA1	Message	Date
Simon Pilgrim	9d2df96407	[DAG] computeKnownBits - add ISD::MULHS/MULHU/SMUL_LOHI/UMUL_LOHI handling ... Reuse the existing KnownBits multiplication code to handle the 'extend + multiply + extract high bits' pattern for multiply-high ops. Noticed while looking at the codegen for D88785 / D98587 - the patch helps division-by-constant expansion code in particular, which suggests that we might have some further KnownBits div/rem cases we could handle - but this was far easier to implement. Differential Revision: https://reviews.llvm.org/D98857	2021-03-19 16:02:31 +00:00
Min-Yih Hsu	340d558c77	[M68k] Fixed incorrect `extract-section` command substitution ... Fix Bug 49485 (https://bugs.llvm.org/show_bug.cgi?id=49485). Which was caused by incorrect invocation of `extract-section.py` on Windows. Replacing it with more general python script invocation. Differential Revision: https://reviews.llvm.org/D98661	2021-03-16 13:37:50 -07:00
Min-Yih Hsu	c23a780c30	[M68k][test](6/8) Add all of the tests ... And a small utilities -- extract-section.py -- that helps extracting specific object file section and printing in textual format. This utility is just a workaround for tests inside `Encoding`. Hopefully in the future we can replace dependencies in those tests with existing tools (e.g. llvm-readobj). Please refer to this bug for more context: https://bugs.llvm.org/show_bug.cgi?id=49245 Note that since we don't have AsmParser for now, we are testing the MC part using MIR as input and put those tests under the `Encoding` folder. In the future when AsmParser (and disassembler) is finished, those tests will be moved to `test/MC/M68k`. Authors: myhsu, m4yers, glaubitz Differential Revision: https://reviews.llvm.org/D88392	2021-03-08 12:30:57 -08:00