procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

rs6000.c (rs6000_frame_related): Avoid unwanted sharing of hard registers.

Browse source 
* rs6000.c (rs6000_frame_related): Avoid unwanted sharing
        of hard registers.

From-SVN: r54615
This commit is contained in:
Jeff Law 2002-06-14 08:44:33 -06:00 • committed by Jeff Law
parent 556b821e7c
commit e56c446321
2 changed files with 13 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
gcc/ChangeLog
View file

@ -1,3 +1,8 @@
2002-06-13 Jeffrey Law <law@redhat.com>
* rs6000.c (rs6000_frame_related): Avoid unwanted sharing
of hard registers.
2002-06-14 Ulrich Weigand <uweigand@de.ibm.com>
* Makefile.in (libgcc.mk): Depend on specs.

8
gcc/config/rs6000/rs6000.c
View file

@ -8666,6 +8666,14 @@ rs6000_frame_related (insn, reg, val, reg2, rreg)
{
rtx real, temp;
/* copy_rtx will not make unique copies of registers, so we need to
ensure we don't have unwanted sharing here. */
if (reg == reg2)
reg = gen_raw_REG (GET_MODE (reg), REGNO (reg));
if (reg == rreg)
reg = gen_raw_REG (GET_MODE (reg), REGNO (reg));
real = copy_rtx (PATTERN (insn));
real = replace_rtx (real, reg,