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authorGravatar xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e>2014-08-17 07:53:43 +0000
committerGravatar xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e>2014-08-17 07:53:43 +0000
commit34a2dec2f1fab835aec0799f5b4758df31e688ff (patch)
tree379302c07e9d167101053a30cb5ca36f16c67fe7 /test/regression
parent17f519651feb4a09aa90c89c949469e8a5ab0e88 (diff)
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
Diffstat (limited to 'test/regression')
-rw-r--r--test/regression/Makefile2
-rw-r--r--test/regression/Results/switch247
-rw-r--r--test/regression/switch2.c61
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;
+}