diff options
Diffstat (limited to 'gcc/reload.c')
| -rw-r--r-- | gcc/reload.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/gcc/reload.c b/gcc/reload.c index 2915475..394a430 100644 --- a/gcc/reload.c +++ b/gcc/reload.c @@ -671,7 +671,7 @@ clear_secondary_mem (void) /* Find the largest class which has at least one register valid in mode INNER, and which for every such register, that register number plus N is also valid in OUTER (if in range) and is cheap to move - into REGNO. Abort if no such class exists. */ + into REGNO. Such a class must exist. */ static enum reg_class find_valid_class (enum machine_mode outer ATTRIBUTE_UNUSED, @@ -4559,14 +4559,14 @@ find_reloads_toplev (rtx x, int opnum, enum reload_type type, if (code == SUBREG && REG_P (SUBREG_REG (x))) { - /* Check for SUBREG containing a REG that's equivalent to a constant. - If the constant has a known value, truncate it right now. - Similarly if we are extracting a single-word of a multi-word - constant. If the constant is symbolic, allow it to be substituted - normally. push_reload will strip the subreg later. If the - constant is VOIDmode, abort because we will lose the mode of - the register (this should never happen because one of the cases - above should handle it). */ + /* Check for SUBREG containing a REG that's equivalent to a + constant. If the constant has a known value, truncate it + right now. Similarly if we are extracting a single-word of a + multi-word constant. If the constant is symbolic, allow it + to be substituted normally. push_reload will strip the + subreg later. The constant must not be VOIDmode, because we + will lose the mode of the register (this should never happen + because one of the cases above should handle it). */ int regno = REGNO (SUBREG_REG (x)); rtx tem; @@ -6536,7 +6536,7 @@ find_equiv_reg (rtx goal, rtx insn, enum reg_class class, int other, different from what they were when calculating the need for spills. If we notice an input-reload insn here, we will reject it below, but it might hide a usable equivalent. - That makes bad code. It may even abort: perhaps no reg was + That makes bad code. It may even fail: perhaps no reg was spilled for this insn because it was assumed we would find that equivalent. */ || INSN_UID (p) < reload_first_uid)) |