CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2021/04/20 18:22:16
Modified files:
gnu/llvm/llvm/lib/Target/PowerPC: PPCInstrInfo.td
Log message:
Fix __builtin_bitreverse32 on 32-bit PowerPC
This is a backport from LLVM 11. Before this fix, code using
__builtin_bitreverse32 was crashing SIGILL because clang-10 emitted a
64-bit rldicl/clrldi instruction. The SIGILL only happened on 32-bit
cpus, not on the G5. The code for LLVM 11 uses __builtin_bitreverse,
so clang-10 needs this fix to build clang-11.
https://github.com/llvm/llvm-project/commit/a5d161c119d5a
https://reviews.llvm.org/D77946
ok kettenis@
