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| author | Rahul Joshi <rjoshi@nvidia.com> | 2025-06-17 06:21:21 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-06-17 06:21:21 -0700 |
| commit | 816ab1af0da1dc833f487933e7d6fb470d844001 (patch) | |
| tree | 35a9f0590b8a14465daedd9d055cc1417f56a232 /llvm/lib/Transforms/Utils/LoopRotationUtils.cpp | |
| parent | 977d8a4bcd83797217433709201922b9deb97ae2 (diff) | |
| download | llvm-816ab1af0da1dc833f487933e7d6fb470d844001.zip llvm-816ab1af0da1dc833f487933e7d6fb470d844001.tar.gz llvm-816ab1af0da1dc833f487933e7d6fb470d844001.tar.bz2 | |
[NFCI][TableGen][DecoderEmitter] Cull Op handling when possible (#142974)
TryDecode/CheckPredicate/SoftFail MCD ops are not used by many targets.
Track the set of opcodes that were emitted and emit code for handling
TryDecode/CheckPredicate/SoftFail ops when decoding only if there were
emitted. This is purely eliminating dead code in the generated
`decodeInstruction` function.
This results in the following reduction in the size of the Disassembler
.so files with a release x86_64 release build on Linux:
```
Target Old Size New Size % reduction
build/lib/libLLVMAArch64Disassembler.so.21.0git 256656 256656 0.00
build/lib/libLLVMAMDGPUDisassembler.so.21.0git 813000 808168 0.59
build/lib/libLLVMARCDisassembler.so.21.0git 44816 43536 2.86
build/lib/libLLVMARMDisassembler.so.21.0git 281744 278808 1.04
build/lib/libLLVMAVRDisassembler.so.21.0git 36040 34496 4.28
build/lib/libLLVMBPFDisassembler.so.21.0git 26248 23168 11.73
build/lib/libLLVMCSKYDisassembler.so.21.0git 55960 53632 4.16
build/lib/libLLVMHexagonDisassembler.so.21.0git 115952 113416 2.19
build/lib/libLLVMLanaiDisassembler.so.21.0git 24360 21008 13.76
build/lib/libLLVMLoongArchDisassembler.so.21.0git 58584 56168 4.12
build/lib/libLLVMM68kDisassembler.so.21.0git 57264 53880 5.91
build/lib/libLLVMMSP430Disassembler.so.21.0git 28896 28440 1.58
build/lib/libLLVMMipsDisassembler.so.21.0git 123128 120568 2.08
build/lib/libLLVMPowerPCDisassembler.so.21.0git 80656 78096 3.17
build/lib/libLLVMRISCVDisassembler.so.21.0git 154080 150200 2.52
build/lib/libLLVMSparcDisassembler.so.21.0git 42040 39568 5.88
build/lib/libLLVMSystemZDisassembler.so.21.0git 97056 94552 2.58
build/lib/libLLVMVEDisassembler.so.21.0git 83944 81352 3.09
build/lib/libLLVMWebAssemblyDisassembler.so.21.0git 25280 25280 0.00
build/lib/libLLVMX86Disassembler.so.21.0git 2920624 2920624 0.00
build/lib/libLLVMXCoreDisassembler.so.21.0git 48320 44288 8.34
build/lib/libLLVMXtensaDisassembler.so.21.0git 42248 35840 15.17
```
Diffstat (limited to 'llvm/lib/Transforms/Utils/LoopRotationUtils.cpp')
0 files changed, 0 insertions, 0 deletions