| commit | 758d97dce0c669a0ba6927728b40030a76acb144 | [log] [tgz] |
|---|---|---|
| author | YunQiang Su <syq@debian.org> | Tue Apr 23 02:08:12 2024 +0800 |
| committer | GitHub <noreply@github.com> | Tue Apr 23 02:08:12 2024 +0800 |
| tree | 636df6f7b979c62e6e85b72c52dbb3f914b1b9d3 | |
| parent | f94ed6f7977305db8fa6b48a85c9db2b8cc4d3b3 [diff] |
[MIPS]: Rework atomic max/min expand for subword (#89575) The current code is so buggy: it can work for few cases. The problems include: 1. ll/sc works on a whole word, while other parts other than we rmw are dropped. 2. The oprands are not well zero-extended for unsigned ops. 3. It doesn't work for big-endian, as the postion of subword differs with little endian. And in fact, we can set the return value correct in ll/sc scope, so we can skip the sinkMBB.
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