diff options
| author | Aaron Sawdey <acsawdey@linux.vnet.ibm.com> | 2018-03-13 16:28:09 +0000 |
|---|---|---|
| committer | Aaron Sawdey <acsawdey@gcc.gnu.org> | 2018-03-13 11:28:09 -0500 |
| commit | b34f5c5e69bb024f41b4e15869f7ff18c3f8dd6f (patch) | |
| tree | e36696173518a79b5c87561d0c4cf311239e665f /gcc | |
| parent | 1d500c25165a5b708f1fc2088ba63c93a2c1eb94 (diff) | |
| download | gcc-b34f5c5e69bb024f41b4e15869f7ff18c3f8dd6f.zip gcc-b34f5c5e69bb024f41b4e15869f7ff18c3f8dd6f.tar.gz gcc-b34f5c5e69bb024f41b4e15869f7ff18c3f8dd6f.tar.bz2 | |
re PR target/84743 (default widths for parallel reassociation now hurt rather than help)
2018-03-13 Aaron Sawdey <acsawdey@linux.vnet.ibm.com>
PR target/84743
* config/rs6000/rs6000.c (rs6000_reassociation_width): Disable parallel
reassociation for int modes.
From-SVN: r258495
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4a6f4d4..6453b26 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2018-03-13 Aaron Sawdey <acsawdey@linux.vnet.ibm.com> + + PR target/84743 + * config/rs6000/rs6000.c (rs6000_reassociation_width): Disable parallel + reassociation for int modes. + 2018-03-13 Richard Sandiford <richard.sandiford@linaro.org> * tree-vect-loop-manip.c (vect_maybe_permute_loop_masks): diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 1db88d0..7e3e5a6 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -10004,7 +10004,7 @@ rs6000_reassociation_width (unsigned int opc ATTRIBUTE_UNUSED, if (VECTOR_MODE_P (mode)) return 4; if (INTEGRAL_MODE_P (mode)) - return opc == MULT_EXPR ? 4 : 6; + return 1; if (FLOAT_MODE_P (mode)) return 4; break; |