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| author | Richard Kenner <kenner@vlsi1.ultra.nyu.edu> | 2000-01-01 00:07:54 +0000 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1999-12-31 19:07:54 -0500 |
| commit | 700f19f09fdeb75c173cd31b38acee11f6f88356 (patch) | |
| tree | ba1be5dc0460b0f5df814a49d8c3db765366ce78 | |
| parent | 2c33b220da50f14dd23e40cadcca51232a781579 (diff) | |
| download | gcc-700f19f09fdeb75c173cd31b38acee11f6f88356.zip gcc-700f19f09fdeb75c173cd31b38acee11f6f88356.tar.gz gcc-700f19f09fdeb75c173cd31b38acee11f6f88356.tar.bz2 | |
function.c (update_temp_slot_address): Handle case where sum of temporary address plus offset in register is a valid...
* function.c (update_temp_slot_address): Handle case where sum of
temporary address plus offset in register is a valid address.
From-SVN: r31153
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/function.c | 19 |
2 files changed, 20 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4bcdb47..acf044a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Fri Dec 31 19:10:31 1999 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> + + * function.c (update_temp_slot_address): Handle case where sum of + temporary address plus offset in register is a valid address. + 1999-12-30 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl> * genrecog.c (change_state) Corrected typo. diff --git a/gcc/function.c b/gcc/function.c index 77b1941..a551e24 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -978,12 +978,23 @@ update_temp_slot_address (old, new) p = find_temp_slot_from_address (old); - /* If we didn't find one, see if both OLD and NEW are a PLUS and if - there is a register in common between them. If so, try a recursive - call on those values. */ + /* If we didn't find one, see if both OLD is a PLUS. If so, and NEW + is a register, see if one operand of the PLUS is a temporary + location. If so, NEW points into it. Otherwise, if both OLD and + NEW are a PLUS and if there is a register in common between them. + If so, try a recursive call on those values. */ if (p == 0) { - if (GET_CODE (old) != PLUS || GET_CODE (new) != PLUS) + if (GET_CODE (old) != PLUS) + return; + + if (GET_CODE (new) == REG) + { + update_temp_slot_address (XEXP (old, 0), new); + update_temp_slot_address (XEXP (old, 1), new); + return; + } + else if (GET_CODE (new) != PLUS) return; if (rtx_equal_p (XEXP (old, 0), XEXP (new, 0))) |