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| author | Richard Sandiford <richard.sandiford@linaro.org> | 2017-08-30 11:09:41 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2017-08-30 11:09:41 +0000 |
| commit | 857c7b46875bdcf9d889543baad54977034d57ef (patch) | |
| tree | 60a693fba5c631712da730e6ce07a8deda2af759 /gcc/machmode.h | |
| parent | d16c828e7aa2a704d887b071864823fc1e39670f (diff) | |
| download | gcc-857c7b46875bdcf9d889543baad54977034d57ef.zip gcc-857c7b46875bdcf9d889543baad54977034d57ef.tar.gz gcc-857c7b46875bdcf9d889543baad54977034d57ef.tar.bz2 | |
[11/77] Add a float_mode_for_size helper function
This provides a type-safe way to ask for a float mode and get it as a
scalar_float_mode.
2017-08-30 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* coretypes.h (opt_scalar_float_mode): New typedef.
* machmode.h (float_mode_for_size): New function.
* emit-rtl.c (double_mode): Delete.
(init_emit_once): Use float_mode_for_size.
* stor-layout.c (layout_type): Likewise.
* gdbhooks.py (build_pretty_printer): Handle opt_scalar_float_mode.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r251463
Diffstat (limited to 'gcc/machmode.h')
| -rw-r--r-- | gcc/machmode.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/gcc/machmode.h b/gcc/machmode.h index 3b71b9d..aa931f5 100644 --- a/gcc/machmode.h +++ b/gcc/machmode.h @@ -520,7 +520,16 @@ extern const unsigned char mode_complex[NUM_MACHINE_MODES]; extern machine_mode mode_for_size (unsigned int, enum mode_class, int); -/* Similar, but find the smallest mode for a given width. */ +/* Return the machine mode to use for a MODE_FLOAT of SIZE bits, if one + exists. */ + +inline opt_scalar_float_mode +float_mode_for_size (unsigned int size) +{ + return dyn_cast <scalar_float_mode> (mode_for_size (size, MODE_FLOAT, 0)); +} + +/* Similar to mode_for_size, but find the smallest mode for a given width. */ extern machine_mode smallest_mode_for_size (unsigned int, enum mode_class); |