===================================================================
@@ -1141,7 +1141,8 @@
SUBREG_BYTE (in),
GET_MODE (in)),
REGNO (SUBREG_REG (in)));
- else if (GET_CODE (SUBREG_REG (in)) == SYMBOL_REF)
+ else if (CONSTANT_P (SUBREG_REG (in))
+ || GET_CODE (SUBREG_REG (in)) == PLUS)
subreg_in_class = find_valid_class_1 (inmode,
GET_MODE (SUBREG_REG (in)),
rclass);
===================================================================
@@ -0,0 +1,30 @@
+/* { dg-do compile } */
+/* { dg-options "-Os -fcaller-saves" } */
+
+#include <stdint.h>
+
+typedef struct {
+ uint8_t x;
+ uint32_t y;
+} A;
+
+A a;
+
+extern int bar(int);
+extern int foo (char *s, ...);
+
+extern uint8_t param;
+extern uint8_t h,m,s,ld,lm;
+extern uint16_t d;
+
+void gps_parse_string(int z)
+{
+ while (bar(z))
+ {
+ switch (param)
+ {
+ case 0: foo("a", &h, &m, &s, &d); break;
+ case 1: foo("d", &ld, &lm, &a.y); break;
+ }
+ }
+}