------- Comment #29 from pthaugen at gcc dot gnu dot org 2007-10-23 20:29
-------
Found another example on PowerPC in the same benchmark that is not fixed by
the checked in patches. Compiled with -m32 -O2. From the loop in procedure
FLUXI:
revision 126325:
.L47:
lfd 0,0(9) #* ivtmp.277, tmp346
lfd 13,-8(9) #, tmp347
add 9,9,0 # ivtmp.277, ivtmp.277, ivtmp.309
fsub 0,0,13 # tmp345, tmp346, tmp347
fmul 0,0,12 # tmp348, tmp345, dtvol.23
fneg 0,0 # tmp349, tmp348
stfd 0,0(11) #* ivtmp.306, tmp349
add 11,11,10 # ivtmp.306, ivtmp.306, ivtmp.280
bdnz .L47 #
revision 126326 (and current mainline):
.L83:
lwz 0,48(7) # <variable>.stride, <variable>.stride
lfd 0,0(10) #* ivtmp.277, tmp416
lfd 13,-8(10) #, tmp417
lfd 12,0(5) # dtvol, dtvol
add 10,10,6 # ivtmp.277, ivtmp.277, ivtmp.306
mullw 0,8,0 # tmp409, l, <variable>.stride
fsub 0,0,13 # tmp415, tmp416, tmp417
lwz 9,4(7) # du.offset, du.offset
lwz 11,0(7) # du.data, du.data
fmul 0,0,12 # tmp420, tmp415, dtvol
fneg 0,0 # tmp422, tmp420
add 0,0,9 # tmp412, tmp409, du.offset
addi 8,8,1 # l, l,
slwi 0,0,3 # tmp413, tmp412,
stfdx 0,11,0 #, tmp422
bdnz .L83 #
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32921
