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| author | Richard Sandiford <richard.sandiford@linaro.org> | 2017-09-05 19:58:04 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2017-09-05 19:58:04 +0000 |
| commit | 6657c1f9bda5042bb5854a3f524b02bd22f82e44 (patch) | |
| tree | a6a555e04a44267277c331cae36cd551c3df7a4e /gcc/stor-layout.c | |
| parent | 798014c58e9e54b068c30e8e2113d278a0bd6e07 (diff) | |
| download | gcc-6657c1f9bda5042bb5854a3f524b02bd22f82e44.zip gcc-6657c1f9bda5042bb5854a3f524b02bd22f82e44.tar.gz gcc-6657c1f9bda5042bb5854a3f524b02bd22f82e44.tar.bz2 | |
Make bitsize_mode_for_mode return an opt_mode
2017-09-05 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* machmode.h (bitwise_mode_for_mode): Return opt_mode.
* stor-layout.c (bitwise_mode_for_mode): Likewise.
(bitwise_type_for_mode): Update accordingly.
From-SVN: r251733
Diffstat (limited to 'gcc/stor-layout.c')
| -rw-r--r-- | gcc/stor-layout.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c index 8a3b0fe..3549f49 100644 --- a/gcc/stor-layout.c +++ b/gcc/stor-layout.c @@ -404,10 +404,10 @@ int_mode_for_mode (machine_mode mode) } } -/* Find a mode that can be used for efficient bitwise operations on MODE. - Return BLKmode if no such mode exists. */ +/* Find a mode that can be used for efficient bitwise operations on MODE, + if one exists. */ -machine_mode +opt_machine_mode bitwise_mode_for_mode (machine_mode mode) { /* Quick exit if we already have a suitable mode. */ @@ -445,7 +445,7 @@ bitwise_mode_for_mode (machine_mode mode) } /* Otherwise fall back on integers while honoring MAX_FIXED_MODE_SIZE. */ - return mode_for_size (bitsize, MODE_INT, true).else_blk (); + return mode_for_size (bitsize, MODE_INT, true); } /* Find a type that can be used for efficient bitwise operations on MODE. @@ -454,8 +454,7 @@ bitwise_mode_for_mode (machine_mode mode) tree bitwise_type_for_mode (machine_mode mode) { - mode = bitwise_mode_for_mode (mode); - if (mode == BLKmode) + if (!bitwise_mode_for_mode (mode).exists (&mode)) return NULL_TREE; unsigned int inner_size = GET_MODE_UNIT_BITSIZE (mode); |