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emit-rtl.c (set_mem_attributes_minus_bitpos): Set MEM_POINTER flag.

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* emit-rtl.c (set_mem_attributes_minus_bitpos): Set MEM_POINTER
	flag.
	* explow.c (force_not_mem): Set REG_POINTER flag according to
	MEM_POINTER one.
	* rtl.h (MEM_POINTER): New macro.
	(struct rtx_def): Use integrated for MEM_SCALAR_P and frame_related
	for MEM_POINTER.

From-SVN: r79764
This commit is contained in:
Zdenek Dvorak 2004-03-21 00:08:57 +01:00 committed by Zdenek Dvorak
parent 687c3ea538
commit f8ad8d7cf8
4 changed files with 24 additions and 5 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2004-03-20 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
* emit-rtl.c (set_mem_attributes_minus_bitpos): Set MEM_POINTER
flag.
* explow.c (force_not_mem): Set REG_POINTER flag according to
MEM_POINTER one.
* rtl.h (MEM_POINTER): New macro.
(struct rtx_def): Use integrated for MEM_SCALAR_P and frame_related
for MEM_POINTER.
2004-03-20 Roger Sayle <roger@eyesopen.com>
PR target/13889

1
gcc/emit-rtl.c
View File

@ -1512,6 +1512,7 @@ set_mem_attributes_minus_bitpos (rtx ref, tree t, int objectp,
|= ((lang_hooks.honor_readonly
&& (TYPE_READONLY (type) || TREE_READONLY (t)))
|| (! TYPE_P (t) && TREE_CONSTANT (t)));
MEM_POINTER (ref) = POINTER_TYPE_P (type);
/* If we are making an object of this type, or if this is a DECL, we know
that it is a scalar if the type is not an aggregate. */

4
gcc/explow.c
View File

@ -770,6 +770,10 @@ force_not_mem (rtx x)
return x;
temp = gen_reg_rtx (GET_MODE (x));
if (MEM_POINTER (x))
REG_POINTER (temp) = 1;
emit_move_insn (temp, x);
return temp;
}

14
gcc/rtl.h
View File

@ -243,14 +243,14 @@ struct rtx_def GTY((chain_next ("RTX_NEXT (&%h)"),
/* Nonzero if this rtx came from procedure integration.
1 in a REG or PARALLEL means this rtx refers to the return value
of the current function.
1 in a SYMBOL_REF if the symbol is weak. */
1 in a SYMBOL_REF if the symbol is weak.
1 in a MEM if the MEM refers to a scalar, rather than a member of
an aggregate. */
unsigned integrated : 1;
/* 1 in an INSN or a SET if this rtx is related to the call frame,
either changing how we compute the frame address or saving and
restoring registers in the prologue and epilogue.
1 in a MEM if the MEM refers to a scalar, rather than a member of
an aggregate.
1 in a REG if the register is a pointer.
1 in a REG or MEM if it is a pointer.
1 in a SYMBOL_REF if it addresses something in the per-function
constant string pool. */
unsigned frame_related : 1;
@ -1136,6 +1136,10 @@ enum label_kind
#define REG_POINTER(RTX) \
(RTL_FLAG_CHECK1("REG_POINTER", (RTX), REG)->frame_related)
/* 1 if RTX is a mem that holds a pointer value. */
#define MEM_POINTER(RTX) \
(RTL_FLAG_CHECK1("MEM_POINTER", (RTX), MEM)->frame_related)
/* 1 if the given register REG corresponds to a hard register. */
#define HARD_REGISTER_P(REG) (HARD_REGISTER_NUM_P (REGNO (REG)))
@ -1251,7 +1255,7 @@ do { \
/* 1 if RTX is a mem that refers to a scalar. If zero, RTX may or may
not refer to a scalar. */
#define MEM_SCALAR_P(RTX) \
(RTL_FLAG_CHECK1("MEM_SCALAR_P", (RTX), MEM)->frame_related)
(RTL_FLAG_CHECK1("MEM_SCALAR_P", (RTX), MEM)->integrated)
/* 1 if RTX is a mem that cannot trap. */
#define MEM_NOTRAP_P(RTX) \