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mips.c (mips_offset_within_alignment_p): New.

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* config/mips/mips.c (mips_offset_within_alignment_p): New.
(mips_symbolic_constant_p): Call it for TPREL and DTPREL symbols.

From-SVN: r124833
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DJ Delorie 2007-05-18 17:15:50 -04:00 committed by DJ Delorie
parent e7e0aaeca8
commit 8b5fb3a36f
2 changed files with 38 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2007-05-18 DJ Delorie <dj@redhat.com>
* config/mips/mips.c (mips_offset_within_alignment_p): New.
(mips_symbolic_constant_p): Call it for TPREL and DTPREL symbols.
2007-05-18 Uros Bizjak <ubizjak@gmail.com>
* longlong.h (__x86_64__): Add definitions for add_ssaaaa,

36
gcc/config/mips/mips.c
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@ -412,6 +412,7 @@ static rtx mips_expand_builtin_bposge (enum mips_builtin_type, rtx);
static void mips_encode_section_info (tree, rtx, int);
static void mips_extra_live_on_entry (bitmap);
static int mips_mode_rep_extended (enum machine_mode, enum machine_mode);
static bool mips_offset_within_alignment_p (rtx, HOST_WIDE_INT);
/* Structure to be filled in by compute_frame_size with register
save masks, and offsets for the current function. */
@ -1350,6 +1351,28 @@ mips_classify_symbol (rtx x)
return SYMBOL_GENERAL;
}
/* Returns true if OFFSET is within the range [0, ALIGN), where ALIGN
is the alignment (in bytes) of SYMBOL_REF X. */
static bool
mips_offset_within_alignment_p (rtx x, HOST_WIDE_INT offset)
{
/* If for some reason we can't get the alignment for the
symbol, initializing this to one means we won't accept any
offset. */
HOST_WIDE_INT align = 1;
tree t;
/* Get the alignment of the symbol we're referring to. */
t = SYMBOL_REF_DECL (x);
if (t)
align = DECL_ALIGN_UNIT (t);
if (offset >= 0 && offset < align)
return true;
return false;
}
/* Return true if X is a symbolic constant that can be calculated in
the same way as a bare symbol. If it is, store the type of the
symbol in *SYMBOL_TYPE. */
@ -1361,7 +1384,10 @@ mips_symbolic_constant_p (rtx x, enum mips_symbol_type *symbol_type)
split_const (x, &x, &offset);
if (UNSPEC_ADDRESS_P (x))
*symbol_type = UNSPEC_ADDRESS_TYPE (x);
{
*symbol_type = UNSPEC_ADDRESS_TYPE (x);
x = UNSPEC_ADDRESS (x);
}
else if (GET_CODE (x) == SYMBOL_REF || GET_CODE (x) == LABEL_REF)
{
*symbol_type = mips_classify_symbol (x);
@ -1416,14 +1442,18 @@ mips_symbolic_constant_p (rtx x, enum mips_symbol_type *symbol_type)
to GOT overflow. */
return SMALL_INT (offset);
case SYMBOL_TPREL:
case SYMBOL_DTPREL:
/* There is no carry between the HI and LO REL relocations, so the
offset is only valid if we know it won't lead to such a carry. */
return mips_offset_within_alignment_p (x, INTVAL (offset));
case SYMBOL_GOT_DISP:
case SYMBOL_GOTOFF_DISP:
case SYMBOL_GOTOFF_CALL:
case SYMBOL_GOTOFF_LOADGP:
case SYMBOL_TLSGD:
case SYMBOL_TLSLDM:
case SYMBOL_DTPREL:
case SYMBOL_TPREL:
case SYMBOL_GOTTPREL:
case SYMBOL_TLS:
case SYMBOL_HALF: