| 1 | // RUN: %clang_cc1 -triple i386-unknown-unknown %s -O3 -emit-llvm -o - | FileCheck -check-prefix=CHECK-C %s |
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| 2 | // RUN: %clang_cc1 -triple i386-unknown-unknown -x c++ %s -O3 -emit-llvm -o - | FileCheck -check-prefix=CHECK-CXX %s |
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| 3 | // CHECK-C: ret i32 6 |
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| 4 | // CHECK-CXX: ret i32 7 |
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| 5 | |
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| 6 | // This test case illustrates a peculiarity of the promotion of |
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| 7 | // enumeration types in C and C++. In particular, the enumeration type |
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| 8 | // "z" below promotes to an unsigned int in C but int in C++. |
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| 9 | static enum { foo, bar = 1U } z; |
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| 10 | |
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| 11 | int main (void) |
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| 12 | { |
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| 13 | int r = 0; |
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| 14 | |
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| 15 | if (bar - 2 < 0) |
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| 16 | r += 4; |
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| 17 | if (foo - 1 < 0) |
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| 18 | r += 2; |
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| 19 | if (z - 1 < 0) |
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| 20 | r++; |
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| 21 | |
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| 22 | return r; |
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| 23 | } |
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| 24 | |
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