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mips.c (r10k_safe_mem_expr_p): Use get_inner_reference.

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	* config/mips/mips.c (r10k_safe_mem_expr_p): Use get_inner_reference.

From-SVN: r190700
This commit is contained in:
Richard Sandiford 2012-08-26 19:20:31 +00:00 committed by Richard Sandiford
parent 1209ab5ed6
commit 62332eba32
2 changed files with 14 additions and 9 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2012-08-26 Richard Sandiford <rdsandiford@googlemail.com>
* config/mips/mips.c (r10k_safe_mem_expr_p): Use get_inner_reference.
2012-08-26 Richard Sandiford <rdsandiford@googlemail.com>
* config/mips/mips.c (mips_rtx_costs): Add costs for CINS.

19
gcc/config/mips/mips.c
View File

@ -14398,17 +14398,18 @@ r10k_safe_address_p (rtx x, rtx insn)
static bool
r10k_safe_mem_expr_p (tree expr, HOST_WIDE_INT offset)
{
if (offset < 0 || offset >= int_size_in_bytes (TREE_TYPE (expr)))
HOST_WIDE_INT bitoffset, bitsize;
tree inner, var_offset;
enum machine_mode mode;
int unsigned_p, volatile_p;
inner = get_inner_reference (expr, &bitsize, &bitoffset, &var_offset, &mode,
&unsigned_p, &volatile_p, false);
if (!DECL_P (inner) || !DECL_SIZE_UNIT (inner) || var_offset)
return false;
while (TREE_CODE (expr) == COMPONENT_REF)
{
expr = TREE_OPERAND (expr, 0);
if (expr == NULL_TREE)
return false;
}
return DECL_P (expr);
offset += bitoffset / BITS_PER_UNIT;
return offset >= 0 && offset < tree_low_cst (DECL_SIZE_UNIT (inner), 1);
}
/* A for_each_rtx callback for which DATA points to the instruction