[Bug target/50725] [4.7 regression] -O3 -mstackrealign -march=core2 generates invalid prologue code in callee procedure

["jojelino at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50725

--- Comment #9 from gee <jojelino at gmail dot com> 2011-10-17 15:42:21 UTC ---
here is more specific option for reproduce this bug.
$ g++ -fverbose-asm -c -O1 -finline-small-functions -ftree-vectorize 
-finline-functions -mstackrealign -march=core2  ./pseudo-reloc.ii
-save-temps;cat pseudo-reloc.s|grep "(%ecx)"
        movl    (%ecx), %eax     # u, u
        pushl   -4(%ecx)         #
        leal    -4(%ecx), %esp   #,


using -fverbose-asm, i got following equivalant option to above but it doesn't
emit same one as above. the only difference on RTL generated between two is
do_pseudo_reloc is inlined in above but below.

$ g++ -fverbose-asm -c -fcombine-stack-adjustments -fcompare-elim
-fcprop-registers -fdefer-pop -fforward-propagate -fguess-branch-probability
-fif-conversion -fif-conversion2 -finline -finline-functions-called-once
-fipa-profile -fipa-pure-const -fipa-reference -fmerge-constants
-fomit-frame-pointer -fshrink-wrap -fsplit-wide-types -ftoplevel-reorder
-ftree-bit-ccp -ftree-ccp -ftree-ch -ftree-copy-prop -ftree-copyrename
-ftree-dce -ftree-dominator-opts -ftree-dse -ftree-fre -ftree-sink -ftree-sra
-ftree-ter -finline-small-functions -ftree-vectorize  -finline-functions
-mstackrealign -march=core2  ./pseudo-reloc.ii -save-temps;cat
pseudo-reloc.s|grep "(%ecx)"