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| author | Guenter Roeck <guenter@roeck-us.net> | 2006-09-11 17:05:15 +0000 |
|---|---|---|
| committer | David Edelsohn <dje@gcc.gnu.org> | 2006-09-11 13:05:15 -0400 |
| commit | d29520088232b973624b0623763f0a9e307ef347 (patch) | |
| tree | 54b7ed6d4f4b8e01fd0c7f174cecab5cd9ab019e | |
| parent | 0c387be360e6ac258fc9293db42890d4b96ee276 (diff) | |
| download | gcc-d29520088232b973624b0623763f0a9e307ef347.zip gcc-d29520088232b973624b0623763f0a9e307ef347.tar.gz gcc-d29520088232b973624b0623763f0a9e307ef347.tar.bz2 | |
re PR target/27287 (returning constant double)
2006-09-11 Guenter Roeck <guenter@roeck-us.net>
David Edelsohn <edelsohn@gnu.org>
PR target/27287
* config/rs6000/spe.md (frob_df_di): Remove %H.
(frob_di_df): Remove %H. Change evmergelo to mr.
(frob_di_df_2): Remove %H. Change evldd to two loads.
Co-Authored-By: David Edelsohn <edelsohn@gnu.org>
From-SVN: r116850
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/config/rs6000/spe.md | 31 |
2 files changed, 32 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6790da2..22e113f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2006-09-11 Guenter Roeck <guenter@roeck-us.net> + David Edelsohn <edelsohn@gnu.org> + + PR target/27287 + * config/rs6000/spe.md (frob_df_di): Remove %H. + (frob_di_df): Remove %H. Change evmergelo to mr. + (frob_di_df_2): Remove %H. Change evldd to two loads. + 2006-09-11 Hideki Iwamoto <h-iwamoto@kit.hi-ho.ne.jp> * doc/cpp.texi: Fix names of charset options. diff --git a/gcc/config/rs6000/spe.md b/gcc/config/rs6000/spe.md index 930c48a..1ac1a84 100644 --- a/gcc/config/rs6000/spe.md +++ b/gcc/config/rs6000/spe.md @@ -2200,24 +2200,41 @@ (subreg:DF (match_operand:DI 1 "input_operand" "r,m") 0))] "TARGET_E500_DOUBLE" "@ - evmergelo %0,%H1,%L1 + evmergelo %0,%1,%L1 evldd%X1 %0,%y1") (define_insn "*frob_di_df" [(set (match_operand:DI 0 "nonimmediate_operand" "=&r") (subreg:DI (match_operand:DF 1 "input_operand" "r") 0))] - "TARGET_E500_DOUBLE" /*one of these can be an mr */ - "evmergehi %H0,%1,%1\;evmergelo %L0,%1,%1" + "TARGET_E500_DOUBLE" + "evmergehi %0,%1,%1\;mr %L0,%1" [(set_attr "length" "8")]) (define_insn "*frob_di_df_2" [(set (subreg:DF (match_operand:DI 0 "register_operand" "=&r,r") 0) (match_operand:DF 1 "input_operand" "r,m"))] "TARGET_E500_DOUBLE" - "@ - evmergehi %H0,%1,%1\;evmergelo %L0,%1,%1 - evldd%X1 %0,%y1" - [(set_attr "length" "8,4")]) + "* +{ + switch (which_alternative) + { + default: + gcc_unreachable (); + case 0: + return \"evmergehi %0,%1,%1\;mr %L0,%1\"; + case 1: + /* If the low-address word is used in the address, we must load + it last. Otherwise, load it first. Note that we cannot have + auto-increment in that case since the address register is + known to be dead. */ + if (refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1, + operands[1], 0)) + return \"{l|lwz} %L0,%L1\;{l|lwz} %0,%1\"; + else + return \"{l%U1%X1|lwz%U1%X1} %0,%1\;{l|lwz} %L0,%L1\"; + } +}" + [(set_attr "length" "8,8")]) (define_insn "*mov_sidf_e500_subreg0" [(set (subreg:SI (match_operand:DF 0 "register_operand" "+r") 0) |