From d840c081f8082e8b9e63fead5306643975a97bb3 Mon Sep 17 00:00:00 2001 From: Richard Earnshaw Date: Thu, 20 Nov 2014 17:02:47 +0000 Subject: [PATCH] * config/tc-arm.c (rotate_left): Avoid undefined behaviour when N = 0. --- gas/config/tc-arm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/gas/config/tc-arm.c +++ b/gas/config/tc-arm.c @@ -7261,7 +7261,7 @@ /* Functions for operand encoding. ARM, then Thumb. */ -#define rotate_left(v, n) (v << n | v >> (32 - n)) +#define rotate_left(v, n) (v << (n & 31) | v >> ((32 - n) & 31)) /* If VAL can be encoded in the immediate field of an ARM instruction, return the encoded form. Otherwise, return FAIL. */