https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41742
Peter Bergner <bergner at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |bergner at gcc dot gnu.org
--- Comment #3 from Peter Bergner <bergner at gcc dot gnu.org> ---
Update: current code (both powerpc64-linux and powerpc64le-linux) still contain
the unneeded rlwinm, but now we've replaced the loop with a call to libc's
memset and we do not shrink-wrap the call due to the use of the non-volatile
r31 in the entry block.
foo:
cmpdi 0,5,0
std 31,-8(1)
stdu 1,-128(1)
mr 31,3
beq 0,.L4
mflr 0
rlwinm 4,4,0,0xff
std 0,144(1)
bl memset
nop
ld 0,144(1)
mtlr 0
.L4:
addi 1,1,128
mr 3,31
ld 31,-8(1)
blr
