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| author | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
|---|---|---|
| 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/2009-02-13-zerosize-union-field.c | |
| parent | c4626a62754862d20b41e8a46a3574264ea80e6d (diff) | |
| parent | f1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff) | |
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/CodeGen/2009-02-13-zerosize-union-field.c')
| -rw-r--r-- | clang/test/CodeGen/2009-02-13-zerosize-union-field.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/clang/test/CodeGen/2009-02-13-zerosize-union-field.c b/clang/test/CodeGen/2009-02-13-zerosize-union-field.c new file mode 100644 index 0000000..b39a231 --- /dev/null +++ b/clang/test/CodeGen/2009-02-13-zerosize-union-field.c @@ -0,0 +1,16 @@ +// RUN: %clang_cc1 %s -triple i686-apple-darwin -emit-llvm -o - | FileCheck %s +// Every printf has 'i32 0' for the GEP of the string; no point counting those. +typedef unsigned int Foo __attribute__((aligned(32))); +typedef union{Foo:0;}a; +typedef union{int x; Foo:0;}b; +extern int printf(const char*, ...); +int main() { + // CHECK: getelementptr inbounds ([5 x i8]* @.str, i32 0, i32 0), i32 0 + printf("%ld\n", sizeof(a)); + // CHECK: getelementptr inbounds ([5 x i8]* @.str, i32 0, i32 0), i32 1 + printf("%ld\n", __alignof__(a)); + // CHECK: getelementptr inbounds ([5 x i8]* @.str, i32 0, i32 0), i32 4 + printf("%ld\n", sizeof(b)); + // CHECK: getelementptr inbounds ([5 x i8]* @.str, i32 0, i32 0), i32 4 + printf("%ld\n", __alignof__(b)); +} |