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author | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
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committer | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
commit | be1de4be954c80875ad4108e0a33e8e131b2f2c0 (patch) | |
tree | 1fbbecf276bf7c7bdcbb4dd446099d6d90eaa516 /clang/test/CodeGen/enum.c | |
parent | c4626a62754862d20b41e8a46a3574264ea80e6d (diff) | |
parent | f1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff) |
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/CodeGen/enum.c')
-rw-r--r-- | clang/test/CodeGen/enum.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/clang/test/CodeGen/enum.c b/clang/test/CodeGen/enum.c new file mode 100644 index 0000000..0e239f1 --- /dev/null +++ b/clang/test/CodeGen/enum.c @@ -0,0 +1,22 @@ +// RUN: %clang_cc1 -triple i386-unknown-unknown %s -O3 -emit-llvm -o - | grep 'ret i32 6' +// RUN: %clang_cc1 -triple i386-unknown-unknown -x c++ %s -O3 -emit-llvm -o - | grep 'ret i32 7' + +// This test case illustrates a peculiarity of the promotion of +// enumeration types in C and C++. In particular, the enumeration type +// "z" below promotes to an unsigned int in C but int in C++. +static enum { foo, bar = 1U } z; + +int main (void) +{ + int r = 0; + + if (bar - 2 < 0) + r += 4; + if (foo - 1 < 0) + r += 2; + if (z - 1 < 0) + r++; + + return r; +} + |