Test bit field of size 32

git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1313 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e

test/regression/Makefile

@@ -7,7 +7,7 @@ CCOMPFLAGS=-stdlib ../../runtime -dparse -dclight -dasm \
 LIBS=$(LIBMATH)
 
 # Can run and have reference output in Results
-TESTS=bitfields1 bitfields2 expr1 initializers volatile2 funct3 expr5
+TESTS=bitfields1 bitfields2 bitfields3 expr1 initializers volatile2 funct3 expr5
 
 # Other tests: should compile to .s without errors (but expect warnings)
 EXTRAS=commaprec expr2 expr3 expr4 extern1 funct2 funptr1 init1 \

test/regression/Results/bitfields3

+x = {a = 12345678}
+x = {a = deadbeef}

test/regression/bitfields3.c

+#include <stdio.h>
+
+struct s {
+  unsigned int a: 32;
+};
+
+struct s x = { 0x12345678 };
+
+int main()
+{
+  printf("x = {a = %x}\n", x.a);
+  x.a = 0xDEADBEEF;
+  printf("x = {a = %x}\n", x.a);
+  return 0;
+}