search for: spelwz

Displaying 1 result from an estimated 1 matches for "spelwz".

2020 Apr 16
2
Need help figuring out a isNopCopy() assert
...module 'reduced.ll'. 2. Running pass 'Machine Copy Propagation Pass' on function '@d' I dumped the debug during this, and found the following interesting bits: 0B bb.0.entry: liveins: $r4 16B %1:gprc_and_gprc_nor0 = COPY $r4 32B %2:gprc = SPELWZ 0, undef %3:gprc_and_gprc_nor0 :: (load 4 from `float* undef`) 40B %5:gprc = SPELWZ 0, killed %1:gprc_and_gprc_nor0 :: (load 4 from %ir.b1) 48B %4:sperc = COPY killed %2:gprc 80B %6:sperc = COPY killed %5:gprc ... MCP: Copy is a deletion candidate: renamable $s29 = COPY killed...