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ubsan: aarch64 parse_vector_reg_list

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tc-aarch64.c:1473:27: runtime error: left shift of 7 by 30 places
cannot be represented in type 'int'.

	* config/tc-aarch64.c (parse_vector_reg_list): Avoid UB left
	shift.
This commit is contained in:
Alan Modra 2023-03-31 15:19:10 +10:30
parent a633691333
commit f679aaa4c8
1 changed files with 4 additions and 4 deletions
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8
gas/config/tc-aarch64.c
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@ -1393,7 +1393,7 @@ parse_vector_reg_list (char **ccp, aarch64_reg_type type,
char *str = *ccp;
int nb_regs;
struct vector_type_el typeinfo, typeinfo_first;
int val, val_range, mask;
uint32_t val, val_range, mask;
int in_range;
int ret_val;
bool error = false;
@ -1414,8 +1414,8 @@ parse_vector_reg_list (char **ccp, aarch64_reg_type type,
typeinfo_first.element_size = 0;
typeinfo_first.index = 0;
ret_val = 0;
val = -1;
val_range = -1;
val = -1u;
val_range = -1u;
in_range = 0;
mask = reg_type_mask (type);
do
@ -1470,7 +1470,7 @@ parse_vector_reg_list (char **ccp, aarch64_reg_type type,
if (! error)
for (;;)
{
ret_val |= val_range << (5 * nb_regs);
ret_val |= val_range << ((5 * nb_regs) & 31);
nb_regs++;
if (val_range == val)
break;