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| author | David S. Miller <davem@davemloft.net> | 2011-10-23 22:34:07 +0000 |
|---|---|---|
| committer | David S. Miller <davem@gcc.gnu.org> | 2011-10-23 15:34:07 -0700 |
| commit | b1fc9f8b8d5f9355695ba790d0884a951fcaf5db (patch) | |
| tree | ceddd6702b8688b2520fe6997456bb36bb09351c /gcc/config/sparc/sparc.c | |
| parent | 9c85d38bf4983b01eccfb364e5ef68c54a7d0486 (diff) | |
| download | gcc-b1fc9f8b8d5f9355695ba790d0884a951fcaf5db.zip gcc-b1fc9f8b8d5f9355695ba790d0884a951fcaf5db.tar.gz gcc-b1fc9f8b8d5f9355695ba790d0884a951fcaf5db.tar.bz2 | |
Factor out common tests in 8-byte reg/reg move splitters on 32-bit sparc.
* config/sparc/sparc.c (sparc_split_regreg_legitimate): New
function.
* config/sparc/sparc-protos.h (sparc_split_regreg_legitimate):
Declare it.
* config/sparc/sparc.md (DImode reg/reg split): Use it.
(DFmode reg/reg split): Likewise.
From-SVN: r180354
Diffstat (limited to 'gcc/config/sparc/sparc.c')
| -rw-r--r-- | gcc/config/sparc/sparc.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/config/sparc/sparc.c b/gcc/config/sparc/sparc.c index df0d825..29d2847 100644 --- a/gcc/config/sparc/sparc.c +++ b/gcc/config/sparc/sparc.c @@ -7762,6 +7762,31 @@ sparc_splitdi_legitimate (rtx reg, rtx mem) return 1; } +/* Like sparc_splitdi_legitimate but for REG <--> REG moves. */ + +int +sparc_split_regreg_legitimate (rtx reg1, rtx reg2) +{ + int regno1, regno2; + + if (GET_CODE (reg1) == SUBREG) + reg1 = SUBREG_REG (reg1); + if (GET_CODE (reg1) != REG) + return 0; + regno1 = REGNO (reg1); + + if (GET_CODE (reg2) == SUBREG) + reg2 = SUBREG_REG (reg2); + if (GET_CODE (reg2) != REG) + return 0; + regno2 = REGNO (reg2); + + if (SPARC_INT_REG_P (regno1) && SPARC_INT_REG_P (regno2)) + return 1; + + return 0; +} + /* Return 1 if x and y are some kind of REG and they refer to different hard registers. This test is guaranteed to be run after reload. */ |