gcc/

2013-01-05  Mikael Pettersson  <mikpe@it.uu.se>

	PR target/43961
	* config/arm/arm.h (ADDR_VEC_ALIGN): Describe added
	alignment for Thumb-1 compressed switch tables.

--- gcc-4.7.2/gcc/config/arm/arm.h.~1~	2012-01-10 05:14:09.000000000 +0100
+++ gcc-4.7.2/gcc/config/arm/arm.h	2013-01-05 13:17:59.000000000 +0100
@@ -2027,7 +2027,8 @@ extern int making_const_table;
     } while (0)
 
 /* Jump table alignment is explicit in ASM_OUTPUT_CASE_LABEL.  */
-#define ADDR_VEC_ALIGN(JUMPTABLE) 0
+#define ADDR_VEC_ALIGN(JUMPTABLE)	\
+  ((TARGET_THUMB && GET_MODE (PATTERN (JUMPTABLE)) == SImode) ? 2 : 0)
 
 /* This is how to output a label which precedes a jumptable.  Since
    Thumb instructions are 2 bytes, we may need explicit alignment here.  */