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[Bug middle-end/54821] Microblaze: Position independent code for byte access is incorrect.
- From: "qball at sarine dot nl" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 05 Oct 2012 13:17:17 +0000
- Subject: [Bug middle-end/54821] Microblaze: Position independent code for byte access is incorrect.
- Auto-submitted: auto-generated
- References: <bug-54821-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54821
--- Comment #1 from qball at sarine dot nl 2012-10-05 13:17:17 UTC ---
For 4.6.2 (xilinx) this seems to fix the code generation:
mb_gnu/src/gcc/gcc/config/microblaze/microblaze.c
temp/mb_gnu/src/gcc/gcc/config/microblaze/microblaze.c
@@ -558,7 +558,7 @@
{
return !(flag_pic && pic_address_needs_scratch (x));
}
- else if (flag_pic == 2)
+ else if (flag_pic)
{
return false;
}
Generates:
addik r1,r1,-16
swi r19,r1,8
swi r20,r1,12
addk r19,r1,r0
lwi r3,r20,temp@GOT
lbui r3,r3,0
sext8 r3,r3
addk r4,r3,r0
lwi r3,r20,temp2@GOT
lwi r3,r3,0
addk r4,r4,r3
lwi r3,r20,temp4@GOT
lhui r3,r3,0
sext16 r3,r3
addk r3,r4,r3
swi r3,r19,4
addk r1,r19,r0
lwi r19,r1,8
lwi r20,r1,12
addik r1,r1,16
rtsd r15,8
nop # Unfilled delay slot