------- Comment #6 from hjl at lucon dot org 2007-05-20 21:40 -------
forwprop changes
<bb 2>:
alen_4 = alen_2(D) - blen_3(D);
out_5 = 0;
__asm__("":"=r" a_9, "=r" b_10, "=mr" blen_11, "=mr" out_12, "=&r"
tmp_13:"mr"
d_6(D), "0" a_7(D), "1" b_8(D), "2" blen_3(D), "3" 0:"edx", "eax");
if (alen_4 == 0)
goto <bb 3> (<L0>);
else
goto <bb 4> (<L1>);
to
<bb 2>:
out_5 = 0;
__asm__("":"=r" a_9, "=r" b_10, "=mr" blen_11, "=mr" out_12, "=&r"
tmp_13:"mr"
d_6(D), "0" a_7(D), "1" b_8(D), "2" blen_3(D), "3" 0:"edx", "eax");
if (alen_2(D) == blen_3(D))
goto <bb 3> (<L0>);
else
goto <bb 4> (<L1>);
If it can use blen_11 instead of blen_3(D), it may compile. If forwprop can't
deal some asm stmts very well, it should skip those asm stmts.
--
hjl at lucon dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|middle-end |tree-optimization
Target Milestone|4.3.0 |---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32004
