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| author | Jozef Lawrynowicz <jozef.l@mittosystems.com> | 2020-07-22 12:34:30 +0100 |
|---|---|---|
| committer | Jozef Lawrynowicz <jozef.l@mittosystems.com> | 2020-07-22 12:34:46 +0100 |
| commit | 4821e0aabee57d5b7f955f138a8bee4588240609 (patch) | |
| tree | c0ddfb8f95fffac4ac6f967d819fb2cfceef2665 /gcc/expr.c | |
| parent | ade6e7204ce4d179cd9fa4637ddee85ba1fa12d9 (diff) | |
| download | gcc-4821e0aabee57d5b7f955f138a8bee4588240609.zip gcc-4821e0aabee57d5b7f955f138a8bee4588240609.tar.gz gcc-4821e0aabee57d5b7f955f138a8bee4588240609.tar.bz2 | |
expr: Allow scalar_int_mode target mode when converting a constant
is_int_mode does not allow MODE_PARTIAL_INT modes, so convert_modes was
not allowing a constant value to be converted to a MODE_PARTIAL_INT for
use as operand 2 in patterns such as ashlpsi3. The constant had
to be copied into a register before it could be used, but now can be
used directly as an operand without any copying.
gcc/ChangeLog:
* expr.c (convert_modes): Allow a constant integer to be converted to
any scalar int mode.
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -696,12 +696,12 @@ convert_modes (machine_mode mode, machine_mode oldmode, rtx x, int unsignedp) return x; if (CONST_SCALAR_INT_P (x) - && is_int_mode (mode, &int_mode)) + && is_a <scalar_int_mode> (mode, &int_mode)) { /* If the caller did not tell us the old mode, then there is not much to do with respect to canonicalization. We have to assume that all the bits are significant. */ - if (GET_MODE_CLASS (oldmode) != MODE_INT) + if (!is_a <scalar_int_mode> (oldmode)) oldmode = MAX_MODE_INT; wide_int w = wide_int::from (rtx_mode_t (x, oldmode), GET_MODE_PRECISION (int_mode), |