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authorSegher Boessenkool <segher@kernel.crashing.org>2017-02-24 23:35:18 +0100
committerSandra Loosemore <sandra@gcc.gnu.org>2017-02-24 17:35:18 -0500
commit039f4db92051767d931d131a5ec2c7633061a2ed (patch)
treeed6039601e79f32a051b87a579fcd18d0f7f780c /gcc/config/nios2
parentda3243b2b6c29514a0550cfcd4055fdf13c448f3 (diff)
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nios2.c (nios2_simple_const_p): Returns false if the argument isn't a CONST_INT.
2017-02-24 Segher Boessenkool <segher@kernel.crashing.org> Sandra Loosemore <sandra@codesourcery.com> gcc/ * config/nios2/nios2.c (nios2_simple_const_p): Returns false if the argument isn't a CONST_INT. (nios2_alternate_compare_const): Assert op is a CONST_INT. (nios2_valid_compare_const_p): Assert op is a CONST_INT. (nios2_validate_compare): Bypass alternate compare logic if *op2 is not a CONST_INT. (ldstwm_operation_p): Return false if first_base is not a REG or if first_offset is not a CONST_INT. Co-Authored-By: Sandra Loosemore <sandra@codesourcery.com> From-SVN: r245724
Diffstat (limited to 'gcc/config/nios2')
-rw-r--r--gcc/config/nios2/nios2.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/gcc/config/nios2/nios2.c b/gcc/config/nios2/nios2.c
index e1b0372..2fc9a08 100644
--- a/gcc/config/nios2/nios2.c
+++ b/gcc/config/nios2/nios2.c
@@ -1416,6 +1416,8 @@ nios2_option_override (void)
static bool
nios2_simple_const_p (const_rtx cst)
{
+ if (!CONST_INT_P (cst))
+ return false;
HOST_WIDE_INT val = INTVAL (cst);
return SMALL_INT (val) || SMALL_INT_UNSIGNED (val) || UPPER16_INT (val);
}
@@ -1753,6 +1755,8 @@ nios2_alternate_compare_const (enum rtx_code code, rtx op,
enum rtx_code *alt_code, rtx *alt_op,
machine_mode mode)
{
+ gcc_assert (CONST_INT_P (op));
+
HOST_WIDE_INT opval = INTVAL (op);
enum rtx_code scode = signed_condition (code);
bool dec_p = (scode == LT || scode == GE);
@@ -1788,6 +1792,7 @@ nios2_alternate_compare_const (enum rtx_code code, rtx op,
static bool
nios2_valid_compare_const_p (enum rtx_code code, rtx op)
{
+ gcc_assert (CONST_INT_P (op));
switch (code)
{
case EQ: case NE: case GE: case LT:
@@ -1846,7 +1851,7 @@ nios2_validate_compare (machine_mode mode, rtx *cmp, rtx *op1, rtx *op2)
if (GET_MODE_CLASS (mode) == MODE_FLOAT)
return nios2_validate_fpu_compare (mode, cmp, op1, op2, true);
- if (!reg_or_0_operand (*op2, mode))
+ if (CONST_INT_P (*op2) && *op2 != const0_rtx)
{
/* Create alternate constant compare. */
nios2_alternate_compare_const (code, *op2, &alt_code, &alt_op2, mode);
@@ -1878,8 +1883,11 @@ nios2_validate_compare (machine_mode mode, rtx *cmp, rtx *op1, rtx *op2)
code = alt_code;
*op2 = alt_op2;
}
- *op2 = force_reg (SImode, *op2);
+ *op2 = force_reg (mode, *op2);
}
+ else if (!reg_or_0_operand (*op2, mode))
+ *op2 = force_reg (mode, *op2);
+
check_rebuild_cmp:
if (code == GT || code == GTU || code == LE || code == LEU)
{
@@ -4558,6 +4566,8 @@ ldstwm_operation_p (rtx op, bool load_p)
if (!split_mem_address (XEXP (mem, 0),
&first_base, &first_offset))
return false;
+ if (!REG_P (first_base) || !CONST_INT_P (first_offset))
+ return false;
base_reg = first_base;
inc_p = INTVAL (first_offset) >= 0;
}