tcg: Remove last traces of TCG_TARGET_NEED_POOL_LABELS
tcg: Cleanups after disallowing 64-on-32
tcg: Introduce constraint for zero register
tcg: Remove TCG_TARGET_HAS_{br,set}cond2 from riscv and loongarch64
tcg/i386: Use tcg_{high,unsigned}_cond in tcg_out_brcond2
linux-user: Move TARGET_SA_RESTORER out of generic/signal.h
linux-user: Fix alignment when unmapping excess reservation
target/sparc: Fix register selection for all F*TOx and FxTO* instructions
target/sparc: Fix gdbstub incorrectly handling registers f32-f62
target/sparc: fake UltraSPARC T1 PCR and PIC registers