https://sourceware.org/bugzilla/show_bug.cgi?id=22871
--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> --- (In reply to Linus Torvalds from comment #4) > (In reply to H.J. Lu from comment #3) > > > > We need to keep > > > > andq imm31, mem > > Yes. > > > and optimize testq to > > > > testl imm31, mem > > This one isn't quite as obvious. There *may* be microarchitectures that > could have problems doing store buffer forwarding of a previous 64-bit write > to a the 32-bit read of the "testl". > I updated users/hjl/optimize branch to encode testq $imm31, mem as testl $imm31, mem only at -O2. -- You are receiving this mail because: You are on the CC list for the bug. _______________________________________________ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
