Add option -Os to optimize for code size rather than for execution speed.

Refactored compilation flags that affect the Coq part (module Compopts).
Added support for C99 for loops with declarations.


git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2410 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e

1 files changed, 20 insertions, 0 deletions

diff --git a/test/regression/for1.c b/test/regression/for1.c
new file mode 100644
index 0000000..4563dde
--- /dev/null
+++ b/test/regression/for1.c
@@ -0,0 +1,20 @@
+/* C99 'for' loops with declarations */
+
+#include <stdio.h>
+
+int main()
+{
+  int i;
+  for (i = 0; i < 3; i++) printf("loop1: %d\n", i);
+  for (int i = 0; i < 3; i++) printf("loop2: %d\n", i);
+  printf("old i = %d\n", i);
+  for (int i = 0, j; i < 3; i++) {
+    j = i * 2 + 1; printf("loop3: %d %d\n", i, j);
+  }
+  printf("old i = %d\n", i);
+  for (int i = 0, j = i + 4; i < 3; i++, j--) {
+    printf("loop4: %d %d\n", i, j);
+  }
+  printf("old i = %d\n", i);
+  return 0;
+}