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| author | Trevor Saunders <tbsaunde+gcc@tbsaunde.org> | 2015-07-09 02:50:07 +0000 |
|---|---|---|
| committer | Trevor Saunders <tbsaunde@gcc.gnu.org> | 2015-07-09 02:50:07 +0000 |
| commit | 58f2ae18ff4d776b9e682e59d99391fbc515d351 (patch) | |
| tree | 46c8ef20e4e8f82019d6ebb3346caa847ecb58a5 /gcc/rtlanal.c | |
| parent | be1a835d86647f081c681ea8fa3e46e66f275b2e (diff) | |
| download | gcc-58f2ae18ff4d776b9e682e59d99391fbc515d351.zip gcc-58f2ae18ff4d776b9e682e59d99391fbc515d351.tar.gz gcc-58f2ae18ff4d776b9e682e59d99391fbc515d351.tar.bz2 | |
always define SHORT_IMMEDIATES_SIGN_EXTEND
gcc/ChangeLog:
2015-07-08 Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
* combine.c (update_rsp_from_reg_equal): Don't check if
SHORT_IMMEDIATES_SIGN_EXTEND is defined.
(reg_nonzero_bits_for_combine): Likewise.
* config/alpha/alpha.h: Define SHORT_IMMEDIATES_SIGN_EXTEND to
1.
* config/frv/frv.h: Likewise.
* config/lm32/lm32.h: Likewise.
* config/mep/mep.h: Likewise.
* config/mips/mips.h: Likewise.
* config/rs6000/rs6000.h: Likewise.
* config/sh/sh.h: Likewise.
* config/tilegx/tilegx.h (enum reg_class): Likewise.
* config/tilepro/tilepro.h: Likewise.
* defaults.h: Add default for SHORT_IMMEDIATES_SIGN_EXTEND.
* doc/tm.texi: Regenerate.
* doc/tm.texi.in: Adjust.
* rtlanal.c (nonzero_bits1): Likewise.
From-SVN: r225593
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index 854d741..e910ae7 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -4327,14 +4327,12 @@ nonzero_bits1 (const_rtx x, machine_mode mode, const_rtx known_x, } case CONST_INT: -#ifdef SHORT_IMMEDIATES_SIGN_EXTEND /* If X is negative in MODE, sign-extend the value. */ - if (INTVAL (x) > 0 + if (SHORT_IMMEDIATES_SIGN_EXTEND && INTVAL (x) > 0 && mode_width < BITS_PER_WORD && (UINTVAL (x) & ((unsigned HOST_WIDE_INT) 1 << (mode_width - 1))) != 0) return UINTVAL (x) | (HOST_WIDE_INT_M1U << mode_width); -#endif return UINTVAL (x); |