| commit | 598ec8ce2d1e5e20b45c56de8972f58a0caeb697 | [log] [tgz] |
|---|---|---|
| author | Rahul Joshi <rjoshi@nvidia.com> | Wed Apr 16 13:07:58 2025 -0700 |
| committer | GitHub <noreply@github.com> | Wed Apr 16 13:07:58 2025 -0700 |
| tree | 86d443dcb8d8c7403cd9d58aae6ec0384050fa3f | |
| parent | d338bdc9fe72aef1d9d2043d569fd94eb57db111 [diff] |
[LLVM][TableGen] Parameterize NumToSkip in DecoderEmitter (#135882) - Add command line option `num-to-skip-size` to parameterize the size of `NumToSkip` bytes in the decoder table. Default value will be 2, and targets that need larger size can use 3. - Keep all existing targets, except AArch64, to use size 2, and change AArch64 to use size 3 since it run into the "disassembler decoding table too large" error with size 2. - Following is a rough reduction in size for the decoder tables by switching to size 2. ``` Target Old Size New Size % Reduction ================================================ AArch64 153254 153254 0.00 AMDGPU 471566 412805 12.46 ARC 5724 5061 11.58 ARM 84936 73831 13.07 AVR 1497 1306 12.76 BPF 2172 1927 11.28 CSKY 10064 8692 13.63 Hexagon 47967 41965 12.51 Lanai 1108 982 11.37 LoongArch 24446 21621 11.56 MSP430 4200 3716 11.52 Mips 36330 31415 13.53 PPC 31897 28098 11.91 RISCV 37979 32790 13.66 Sparc 8331 7252 12.95 SystemZ 36722 32248 12.18 VE 48296 42873 11.23 XCore 2590 2316 10.58 Xtensa 3827 3316 13.35 ```
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