diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e9ff986fdf4..f2160ade9bd 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -45,6 +45,10 @@
 	PR target/46427
 	* config/m32r/m32r.c: Remove unused variables frame_size and insn.
 
+	PR bootstrap/45444
+	* config/arm/arm.c (locate_neon_builtin_icode): Initialize key.
+	(arm_output_asm_insn) Add ATTRIBUTE_PRINTF_4.
+
 2010-11-15  Richard Guenther  <rguenther@suse.de>
 
 	PR lto/44150
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 5baa2ca8476..afca3c68a62 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -19045,7 +19045,9 @@ neon_builtin_compare (const void *a, const void *b)
 static enum insn_code
 locate_neon_builtin_icode (int fcode, neon_itype *itype)
 {
-  neon_builtin_datum key, *found;
+  neon_builtin_datum key
+    = { NULL, (neon_itype) 0, 0, { CODE_FOR_nothing }, 0, 0 };
+  neon_builtin_datum *found;
   int idx;
 
   key.base_fcode = fcode;
@@ -22900,7 +22902,7 @@ arm_count (int label,
    it to output_asm_insn.  Provides a mechanism to construct the
    output pattern on the fly.  Note the hard limit on the pattern
    buffer size.  */
-static void
+static void ATTRIBUTE_PRINTF_4
 arm_output_asm_insn (emit_f emit, int label, rtx *operands,
 		     const char *pattern, ...)
 {