Add some tests for "switch" over 32 and 64-bit integers.

git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2566 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e

3 files changed, 109 insertions, 1 deletions

diff --git a/test/regression/Makefile b/test/regression/Makefile
index 3583676..4cf9470 100644
--- a/test/regression/Makefile
+++ b/test/regression/Makefile
@@ -16,7 +16,7 @@ TESTS=int32 int64 floats floats-basics \
   expr1 expr6 funptr2 initializers initializers2 initializers3 \
   volatile1 volatile2 volatile3 \
   funct3 expr5 struct7 struct8 struct11 casts1 casts2 char1 \
-  sizeof1 sizeof2 binops bool for1
+  sizeof1 sizeof2 binops bool for1 switch switch2
 
 # Can run, but only in compiled mode, and have reference output in Results
 
diff --git a/test/regression/Results/switch2 b/test/regression/Results/switch2
new file mode 100644
index 0000000..dfbaff2
--- /dev/null
+++ b/test/regression/Results/switch2
@@ -0,0 +1,47 @@
+f(-1) = -1
+f(0) = -1
+f(1) = 34
+f(2) = 56
+f(3) = 78
+f(4) = 123
+f(5) = 456
+f(6) = 789
+f(7) = 11
+f(8) = 22
+f(9) = 33
+f(10) = 44
+f(11) = 55
+f(12) = 66
+f(13) = 77
+f(14) = 88
+f(15) = 99
+f(16) = 321
+f(17) = 654
+f(18) = 987
+f(19) = 1001
+f(20) = -1
+g(9223372036854775807) = 1
+g(-9223372036854775808) = 2
+g(1249835483136) = -1
+g(-1) = -1
+g(0) = 3
+g(1) = -1
+g(2) = -1
+g(3) = -1
+g(4) = 4
+g(5) = -1
+g(6) = -1
+g(7) = -1
+g(8) = -1
+g(9) = -1
+g(10) = -1
+g(11) = -1
+g(12) = -1
+g(13) = 5
+g(14) = -1
+g(15) = -1
+g(16) = -1
+g(17) = -1
+g(18) = -1
+g(19) = -1
+g(20) = -1
diff --git a/test/regression/switch2.c b/test/regression/switch2.c
new file mode 100644
index 0000000..db74174
--- /dev/null
+++ b/test/regression/switch2.c
@@ -0,0 +1,61 @@
+/* switch over long long */
+
+#include <stdio.h>
+
+/* Jumptable */
+
+int f(long long x)
+{
+  switch (x) {
+  case 1: return 34;
+  case 2: return 56;
+  case 3: return 78;
+  case 4: return 123;
+  case 5: return 456;
+  case 6: return 789;
+  case 7: return 11;
+  case 8: return 22;
+  case 9: return 33;
+  case 10: return 44;
+  case 11: return 55;
+  case 12: return 66;
+  case 13: return 77;
+  case 14: return 88;
+  case 15: return 99;
+  case 16: return 321;
+  case 17: return 654;
+  case 18: return 987;
+  case 19: return 1001;
+  default: return -1;
+  }
+}
+
+/* Decision tree */
+
+int g(long long x)
+{
+  switch(x) {
+  case 0x7FFFFFFFFFFFFFFFLL: return 1;
+  case -0x8000000000000000LL: return 2;
+  case 0: return 3;
+  case 4: return 4;
+  case 13: return 5;
+  default: return -1;
+  }
+}
+
+int main(void)
+{
+  int i;
+  for (i = -1; i <= 20; i++) {
+    printf("f(%d) = %d\n", i, f(i));
+  }
+  long long j;
+  j = 0x7FFFFFFFFFFFFFFFLL; printf("g(%lld) = %d\n", j, g(j));
+  j = -0x8000000000000000LL; printf("g(%lld) = %d\n", j, g(j));
+  j = 0x12300000000LL; printf("g(%lld) = %d\n", j, g(j));
+  for (i = -1; i <= 20; i++) {
+    printf("g(%d) = %d\n", i, g(i));
+  }
+  return 0;
+}