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PR26468 UBSAN: tc-mep.c:1684 left shift of negative value

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PR 26468
	* config/tc-mep.c (md_convert_frag): Use uint32_t for addend and
	other variables.
This commit is contained in:
Alan Modra
2020-08-31 14:31:55 +09:30
parent 169ec51259
commit 7a5dd76f3c
2 changed files with 8 additions and 2 deletions
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4
gas/config/tc-mep.c
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@ -1617,7 +1617,7 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
segT seg ATTRIBUTE_UNUSED,
fragS *fragP)
{
int addend, rn, bit = 0;
uint32_t addend, rn, bit = 0;
int operand;
int where = fragP->fr_opcode - fragP->fr_literal;
int e = target_big_endian ? 0 : 1;
@ -1697,7 +1697,7 @@ md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
/* The default relax_frag doesn't change the state if there is no
growth, so we must manually handle converting out-of-range BEQ
instructions to JMP. */
if (addend <= 65535 && addend >= -65536)
if (addend + 65536 < 131071)
{
if (core_mode)
fragP->fr_fix += 2;