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-rw-r--r--clang/test/Sema/tautological-unsigned-enum-zero-compare.c174
1 files changed, 20 insertions, 154 deletions
diff --git a/clang/test/Sema/tautological-unsigned-enum-zero-compare.c b/clang/test/Sema/tautological-unsigned-enum-zero-compare.c
index 43b768433db..a32cfcd8329 100644
--- a/clang/test/Sema/tautological-unsigned-enum-zero-compare.c
+++ b/clang/test/Sema/tautological-unsigned-enum-zero-compare.c
@@ -1,6 +1,10 @@
-// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -fsyntax-only -DUNSIGNED -verify %s
-// RUN: %clang_cc1 -triple=x86_64-pc-win32 -fsyntax-only -DSIGNED -verify %s
-// RUN: %clang_cc1 -triple=x86_64-pc-win32 -fsyntax-only -Wno-tautological-unsigned-enum-zero-compare -verify %s
+// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -fsyntax-only \
+// RUN: -verify=unsigned,unsigned-signed %s
+// RUN: %clang_cc1 -triple=x86_64-pc-win32 -fsyntax-only \
+// RUN: -verify=unsigned-signed %s
+// RUN: %clang_cc1 -triple=x86_64-pc-win32 -fsyntax-only \
+// RUN: -Wno-tautological-unsigned-enum-zero-compare \
+// RUN: -verify=silence %s
// Okay, this is where it gets complicated.
// Then default enum sigdness is target-specific.
@@ -12,175 +16,38 @@ int main() {
enum B { B_a = -1 };
enum B b;
-#ifdef UNSIGNED
- if (a < 0) // expected-warning {{comparison of unsigned enum expression < 0 is always false}}
- return 0;
- if (0 >= a)
- return 0;
- if (a > 0)
- return 0;
- if (0 <= a) // expected-warning {{comparison of 0 <= unsigned enum expression is always true}}
- return 0;
- if (a <= 0)
- return 0;
- if (0 > a) // expected-warning {{comparison of 0 > unsigned enum expression is always false}}
- return 0;
- if (a >= 0) // expected-warning {{comparison of unsigned enum expression >= 0 is always true}}
- return 0;
- if (0 < a)
- return 0;
-
- if (a < 0U) // expected-warning {{comparison of unsigned enum expression < 0 is always false}}
- return 0;
- if (0U >= a)
- return 0;
- if (a > 0U)
- return 0;
- if (0U <= a) // expected-warning {{comparison of 0 <= unsigned enum expression is always true}}
- return 0;
- if (a <= 0U)
- return 0;
- if (0U > a) // expected-warning {{comparison of 0 > unsigned enum expression is always false}}
- return 0;
- if (a >= 0U) // expected-warning {{comparison of unsigned enum expression >= 0 is always true}}
- return 0;
- if (0U < a)
- return 0;
-
- if (b < 0)
- return 0;
- if (0 >= b)
- return 0;
- if (b > 0)
- return 0;
- if (0 <= b)
- return 0;
- if (b <= 0)
- return 0;
- if (0 > b)
- return 0;
- if (b >= 0)
- return 0;
- if (0 < b)
- return 0;
-
- if (b < 0U) // expected-warning {{comparison of unsigned enum expression < 0 is always false}}
- return 0;
- if (0U >= b)
- return 0;
- if (b > 0U)
- return 0;
- if (0U <= b) // expected-warning {{comparison of 0 <= unsigned enum expression is always true}}
- return 0;
- if (b <= 0U)
- return 0;
- if (0U > b) // expected-warning {{comparison of 0 > unsigned enum expression is always false}}
- return 0;
- if (b >= 0U) // expected-warning {{comparison of unsigned enum expression >= 0 is always true}}
- return 0;
- if (0U < b)
- return 0;
-#elif defined(SIGNED)
- if (a < 0)
- return 0;
- if (0 >= a)
- return 0;
- if (a > 0)
- return 0;
- if (0 <= a)
- return 0;
- if (a <= 0)
- return 0;
- if (0 > a)
- return 0;
- if (a >= 0)
- return 0;
- if (0 < a)
- return 0;
-
- if (a < 0U) // expected-warning {{comparison of unsigned enum expression < 0 is always false}}
- return 0;
- if (0U >= a)
- return 0;
- if (a > 0U)
- return 0;
- if (0U <= a) // expected-warning {{comparison of 0 <= unsigned enum expression is always true}}
- return 0;
- if (a <= 0U)
- return 0;
- if (0U > a) // expected-warning {{comparison of 0 > unsigned enum expression is always false}}
- return 0;
- if (a >= 0U) // expected-warning {{comparison of unsigned enum expression >= 0 is always true}}
- return 0;
- if (0U < a)
- return 0;
-
- if (b < 0)
- return 0;
- if (0 >= b)
- return 0;
- if (b > 0)
- return 0;
- if (0 <= b)
- return 0;
- if (b <= 0)
- return 0;
- if (0 > b)
- return 0;
- if (b >= 0)
- return 0;
- if (0 < b)
- return 0;
-
- if (b < 0U) // expected-warning {{comparison of unsigned enum expression < 0 is always false}}
- return 0;
- if (0U >= b)
- return 0;
- if (b > 0U)
- return 0;
- if (0U <= b) // expected-warning {{comparison of 0 <= unsigned enum expression is always true}}
- return 0;
- if (b <= 0U)
- return 0;
- if (0U > b) // expected-warning {{comparison of 0 > unsigned enum expression is always false}}
- return 0;
- if (b >= 0U) // expected-warning {{comparison of unsigned enum expression >= 0 is always true}}
- return 0;
- if (0U < b)
- return 0;
-#else
- // expected-no-diagnostics
+ // silence-no-diagnostics
- if (a < 0)
+ if (a < 0) // unsigned-warning {{comparison of unsigned enum expression < 0 is always false}}
return 0;
if (0 >= a)
return 0;
if (a > 0)
return 0;
- if (0 <= a)
+ if (0 <= a) // unsigned-warning {{comparison of 0 <= unsigned enum expression is always true}}
return 0;
if (a <= 0)
return 0;
- if (0 > a)
+ if (0 > a) // unsigned-warning {{comparison of 0 > unsigned enum expression is always false}}
return 0;
- if (a >= 0)
+ if (a >= 0) // unsigned-warning {{comparison of unsigned enum expression >= 0 is always true}}
return 0;
if (0 < a)
return 0;
- if (a < 0U)
+ if (a < 0U) // unsigned-signed-warning {{comparison of unsigned enum expression < 0 is always false}}
return 0;
if (0U >= a)
return 0;
if (a > 0U)
return 0;
- if (0U <= a)
+ if (0U <= a) // unsigned-signed-warning {{comparison of 0 <= unsigned enum expression is always true}}
return 0;
if (a <= 0U)
return 0;
- if (0U > a)
+ if (0U > a) // unsigned-signed-warning {{comparison of 0 > unsigned enum expression is always false}}
return 0;
- if (a >= 0U)
+ if (a >= 0U) // unsigned-signed-warning {{comparison of unsigned enum expression >= 0 is always true}}
return 0;
if (0U < a)
return 0;
@@ -202,23 +69,22 @@ int main() {
if (0 < b)
return 0;
- if (b < 0U)
+ if (b < 0U) // unsigned-signed-warning {{comparison of unsigned enum expression < 0 is always false}}
return 0;
if (0U >= b)
return 0;
if (b > 0U)
return 0;
- if (0U <= b)
+ if (0U <= b) // unsigned-signed-warning {{comparison of 0 <= unsigned enum expression is always true}}
return 0;
if (b <= 0U)
return 0;
- if (0U > b)
+ if (0U > b) // unsigned-signed-warning {{comparison of 0 > unsigned enum expression is always false}}
return 0;
- if (b >= 0U)
+ if (b >= 0U) // unsigned-signed-warning {{comparison of unsigned enum expression >= 0 is always true}}
return 0;
if (0U < b)
return 0;
-#endif
if (a == 0)
return 0;
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