diff options
| author | Richard Sandiford <richard.sandiford@linaro.org> | 2017-11-01 13:30:34 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2017-11-01 13:30:34 +0000 |
| commit | 7aaba298fe122dfd40bb612623df89db08499f8b (patch) | |
| tree | 0ae2545c05dfb383c6e30bf2152244a320722bec /gcc/optabs.c | |
| parent | b3ad445f853ab7ca0da6216ff1bebfd6f90425f5 (diff) | |
| download | gcc-7aaba298fe122dfd40bb612623df89db08499f8b.zip gcc-7aaba298fe122dfd40bb612623df89db08499f8b.tar.gz gcc-7aaba298fe122dfd40bb612623df89db08499f8b.tar.bz2 | |
Add an is_narrower_int_mode helper function
This patch adds a function for testing whether an arbitrary mode X
is an integer mode that is narrower than integer mode Y. This is
useful for code like expand_float and expand_fix that could in
principle handle vectors as well as scalars.
2017-11-01 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* machmode.h (is_narrower_int_mode): New function
* optabs.c (expand_float, expand_fix): Use it.
* dwarf2out.c (rotate_loc_descriptor): Likewise.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r254305
Diffstat (limited to 'gcc/optabs.c')
| -rw-r--r-- | gcc/optabs.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/optabs.c b/gcc/optabs.c index 7cf4d8e..8f7089e 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -4811,7 +4811,7 @@ expand_float (rtx to, rtx from, int unsignedp) rtx value; convert_optab tab = unsignedp ? ufloat_optab : sfloat_optab; - if (GET_MODE_PRECISION (GET_MODE (from)) < GET_MODE_PRECISION (SImode)) + if (is_narrower_int_mode (GET_MODE (from), SImode)) from = convert_to_mode (SImode, from, unsignedp); libfunc = convert_optab_libfunc (tab, GET_MODE (to), GET_MODE (from)); @@ -4993,7 +4993,7 @@ expand_fix (rtx to, rtx from, int unsignedp) that the mode of TO is at least as wide as SImode, since those are the only library calls we know about. */ - if (GET_MODE_PRECISION (GET_MODE (to)) < GET_MODE_PRECISION (SImode)) + if (is_narrower_int_mode (GET_MODE (to), SImode)) { target = gen_reg_rtx (SImode); |