diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 15 |
2 files changed, 20 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d697edd..542abcf 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2015-09-09 Alan Modra <amodra@gmail.com> + + PR target/67378 + * config/rs6000/rs6000.c (rs6000_secondary_reload_gpr): Find + reload replacement for PRE_MODIFY address reg. + 2015-09-09 Sebastian Pop <s.pop@samsung.com> PR tree-optimization/53852 diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 8107bec..941592a 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -18198,8 +18198,21 @@ rs6000_secondary_reload_gpr (rtx reg, rtx mem, rtx scratch, bool store_p) if (GET_CODE (addr) == PRE_MODIFY) { + gcc_assert (REG_P (XEXP (addr, 0)) + && GET_CODE (XEXP (addr, 1)) == PLUS + && XEXP (XEXP (addr, 1), 0) == XEXP (addr, 0)); scratch_or_premodify = XEXP (addr, 0); - gcc_assert (REG_P (scratch_or_premodify)); + if (!HARD_REGISTER_P (scratch_or_premodify)) + /* If we have a pseudo here then reload will have arranged + to have it replaced, but only in the original insn. + Use the replacement here too. */ + scratch_or_premodify = find_replacement (&XEXP (addr, 0)); + + /* RTL emitted by rs6000_secondary_reload_gpr uses RTL + expressions from the original insn, without unsharing them. + Any RTL that points into the original insn will of course + have register replacements applied. That is why we don't + need to look for replacements under the PLUS. */ addr = XEXP (addr, 1); } gcc_assert (GET_CODE (addr) == PLUS || GET_CODE (addr) == LO_SUM); |