llvm-project

7a8b2627 - [libunwind][Hexagon] Save/restore full r0-r7 in getcontext/jumpto (#208753)

[libunwind][Hexagon] Save/restore full r0-r7 in getcontext/jumpto (#208753) The Hexagon save and restore routines dropped GPRs, producing an incomplete context. UnwindRegistersSave.S (__unw_getcontext): save r0-r7 (stores began at __r[8]), drop a dead "r1 = memw(r30)" before the PC store, and return UNW_ESUCCESS instead of a stale non-zero value. UnwindRegistersRestore.S (jumpto): restore the missing r2-r7 (r0/r1 and r8-r31 were already handled), and fix the stale "pointer is in r2" comment (it is r0). Signed-off-by: Kushal Pal <kushpal@qti.qualcomm.com>