tcg: Remove TODO file

The last update to this file was 9 years ago. In the meantime,
4 of the 6 ideas have actually been completed. The lat two do
not actually make sense anymore.

Backports commit 9e564a1dde5abc7ae4cebc115142f685d98938d7 from qemu
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Richard Henderson 2019-02-22 19:10:21 -05:00 committed by Lioncash
parent c9ad233678
commit b9156a0f55
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@ -1,14 +0,0 @@
- Add new instructions such as: clz, ctz, popcnt.
- See if it is worth exporting mul2, mulu2, div2, divu2.
- Support of globals saved in fixed registers between TBs.
Ideas:
- Move the slow part of the qemu_ld/st ops after the end of the TB.
- Change exception syntax to get closer to QOP system (exception
parameters given with a specific instruction).
- Add float and vector support.