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| author | Richard Sandiford <richard.sandiford@arm.com> | 2014-09-22 07:36:59 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2014-09-22 07:36:59 +0000 |
| commit | 7af3b946a4181ba5ae292a4a2ff905a4ae999073 (patch) | |
| tree | 85b775fbbda18d475c50ade22299ac69b66598f1 /gcc/combine.c | |
| parent | 0cb07998ae317e89dbf9695db731bfc8aa5f9d41 (diff) | |
| download | gcc-7af3b946a4181ba5ae292a4a2ff905a4ae999073.zip gcc-7af3b946a4181ba5ae292a4a2ff905a4ae999073.tar.gz gcc-7af3b946a4181ba5ae292a4a2ff905a4ae999073.tar.bz2 | |
combine.c (subst): Use simplify_subreg_regno rather than REG_CANNOT_CHANGE_MODE_P to detect...
gcc/
* combine.c (subst): Use simplify_subreg_regno rather than
REG_CANNOT_CHANGE_MODE_P to detect invalid mode changes.
From-SVN: r215448
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index bce5545..1328486 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -5121,15 +5121,13 @@ subst (rtx x, rtx from, rtx to, int in_dest, int in_cond, int unique_copy) ) return gen_rtx_CLOBBER (VOIDmode, const0_rtx); -#ifdef CANNOT_CHANGE_MODE_CLASS if (code == SUBREG && REG_P (to) && REGNO (to) < FIRST_PSEUDO_REGISTER - && REG_CANNOT_CHANGE_MODE_P (REGNO (to), - GET_MODE (to), - GET_MODE (x))) + && simplify_subreg_regno (REGNO (to), GET_MODE (to), + SUBREG_BYTE (x), + GET_MODE (x)) < 0) return gen_rtx_CLOBBER (VOIDmode, const0_rtx); -#endif new_rtx = (unique_copy && n_occurrences ? copy_rtx (to) : to); n_occurrences++; |