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| author | Richard Biener <rguenther@suse.de> | 2016-07-26 14:07:05 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2016-07-26 14:07:05 +0000 |
| commit | ab2b55c1093acf8b95b07147afe213cd6e98777f (patch) | |
| tree | 4d5d06e95d4bb2abc5611fa96df7c04afb7662f6 /gcc | |
| parent | 9b7937cf8a06c2d05dc1a5f357ef818f0c736cfa (diff) | |
| download | gcc-ab2b55c1093acf8b95b07147afe213cd6e98777f.zip gcc-ab2b55c1093acf8b95b07147afe213cd6e98777f.tar.gz gcc-ab2b55c1093acf8b95b07147afe213cd6e98777f.tar.bz2 | |
re PR tree-optimization/72517 (436.cactusADM: More than 40% regression in O3 and Ofast on AMD bdver4 m/c.)
2016-07-26 Richard Biener <rguenther@suse.de>
PR middle-end/72517
* expmed.c (extract_bit_field_1): Constrain the vector mode
with element size matching the extraction mode size when
choosing a better vector mode to do the extraction from.
From-SVN: r238756
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/expmed.c | 1 |
2 files changed, 8 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index bbc7e29..dff649d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,4 +1,11 @@ 2016-07-26 Richard Biener <rguenther@suse.de> + + PR middle-end/72517 + * expmed.c (extract_bit_field_1): Constrain the vector mode + with element size matching the extraction mode size when + choosing a better vector mode to do the extraction from. + +2016-07-26 Richard Biener <rguenther@suse.de> Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org> PR middle-end/70920 diff --git a/gcc/expmed.c b/gcc/expmed.c index f776e54..7af0c61 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -1581,6 +1581,7 @@ extract_bit_field_1 (rtx str_rtx, unsigned HOST_WIDE_INT bitsize, for (; new_mode != VOIDmode ; new_mode = GET_MODE_WIDER_MODE (new_mode)) if (GET_MODE_SIZE (new_mode) == GET_MODE_SIZE (GET_MODE (op0)) + && GET_MODE_UNIT_SIZE (new_mode) == GET_MODE_SIZE (tmode) && targetm.vector_mode_supported_p (new_mode)) break; if (new_mode != VOIDmode) |