Comment # 4
on bug 89785
from Tom Stellard
Here is the bug: s_mov_b64 vcc, s[6:7] ; Store pointer for s_load_dword* in vcc <snip> v_cmpx_le_f32_e32 vcc, 0, v6 ; Kill instructions v_cmpx_le_f32_e32 vcc, 0, v6 v_cmpx_le_f32_e32 vcc, 0, v6 v_cmpx_le_f32_e32 vcc, 0, v6 <snip> s_load_dwordx8 s[8:15], vcc, 0x48 ; vcc no longer contains a pointer. The lowering of kill instructions needs to save and restore VCC if it is live. As a work around, you can try this branch: http://cgit.freedesktop.org/~tstellar/llvm/log/?h=sched-perf-Mar-27-2015 or take the top two commits and apply it to llvm master. I think this will avoid the bug.
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