diff options
Diffstat (limited to 'gcc/emit-rtl.c')
| -rw-r--r-- | gcc/emit-rtl.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 4ea852b..82dd61a 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -196,6 +196,7 @@ static mem_attrs *get_mem_attrs PARAMS ((HOST_WIDE_INT, tree, rtx, rtx, unsigned int, enum machine_mode)); static tree component_ref_for_mem_expr PARAMS ((tree)); +static rtx gen_const_vector_0 PARAMS ((enum mode_class, enum machine_mode)); /* Probability of the conditional branch currently proceeded by try_split. Set to -1 otherwise. */ @@ -2390,6 +2391,7 @@ copy_rtx_if_shared (orig) case QUEUED: case CONST_INT: case CONST_DOUBLE: + case CONST_VECTOR: case SYMBOL_REF: case CODE_LABEL: case PC: @@ -2506,6 +2508,7 @@ reset_used_flags (x) case QUEUED: case CONST_INT: case CONST_DOUBLE: + case CONST_VECTOR: case SYMBOL_REF: case CODE_LABEL: case PC: @@ -4541,6 +4544,7 @@ copy_insn_1 (orig) case QUEUED: case CONST_INT: case CONST_DOUBLE: + case CONST_VECTOR: case SYMBOL_REF: case CODE_LABEL: case PC: @@ -4779,6 +4783,35 @@ mark_emit_status (es) ggc_mark_rtx (es->x_first_insn); } +/* Generate the constant 0. The first argument is MODE_VECTOR_INT for + integers or MODE_VECTOR_FLOAT for floats. */ + +static rtx +gen_const_vector_0 (type, mode) + enum mode_class type; + enum machine_mode mode; +{ + rtx tem; + rtvec v; + int units, i; + enum machine_mode inner; + + units = GET_MODE_NUNITS (mode); + inner = GET_MODE_INNER (mode); + + v = rtvec_alloc (units); + + /* We need to call this function after we to set CONST0_RTX first. */ + if (!CONST0_RTX (inner)) + abort (); + + for (i = 0; i < units; ++i) + RTVEC_ELT (v, i) = CONST0_RTX (inner); + + tem = gen_rtx_CONST_VECTOR (mode, v); + return tem; +} + /* Create some permanent unique rtl objects shared between all functions. LINE_NUMBERS is nonzero if line numbers are to be generated. */ @@ -4920,6 +4953,18 @@ init_emit_once (line_numbers) const_tiny_rtx[i][(int) mode] = GEN_INT (i); } + for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_INT); + mode != VOIDmode; + mode = GET_MODE_WIDER_MODE (mode)) + const_tiny_rtx[0][(int) mode] + = gen_const_vector_0 (MODE_VECTOR_INT, mode); + + for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_FLOAT); + mode != VOIDmode; + mode = GET_MODE_WIDER_MODE (mode)) + const_tiny_rtx[0][(int) mode] + = gen_const_vector_0 (MODE_VECTOR_FLOAT, mode); + for (i = (int) CCmode; i < (int) MAX_MACHINE_MODE; ++i) if (GET_MODE_CLASS ((enum machine_mode) i) == MODE_CC) const_tiny_rtx[0][i] = const0_rtx; |