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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/CodeGenCXX/override-layout.cpp | |
parent | c4626a62754862d20b41e8a46a3574264ea80e6d (diff) | |
parent | f1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff) |
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/CodeGenCXX/override-layout.cpp')
-rw-r--r-- | clang/test/CodeGenCXX/override-layout.cpp | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/override-layout.cpp b/clang/test/CodeGenCXX/override-layout.cpp new file mode 100644 index 0000000..d432885 --- /dev/null +++ b/clang/test/CodeGenCXX/override-layout.cpp @@ -0,0 +1,64 @@ +// RUN: %clang_cc1 -fdump-record-layouts-simple %s 2> %t.layouts +// RUN: %clang_cc1 -fdump-record-layouts-simple %s > %t.before 2>&1 +// RUN: %clang_cc1 -DPACKED= -DALIGNED16= -fdump-record-layouts-simple -foverride-record-layout=%t.layouts %s > %t.after 2>&1 +// RUN: diff %t.before %t.after +// RUN: FileCheck %s < %t.after + +// If not explicitly disabled, set PACKED to the packed attribute. +#ifndef PACKED +# define PACKED __attribute__((packed)) +#endif + +struct Empty1 { }; +struct Empty2 { }; + +// CHECK: Type: struct X0 +struct X0 : public Empty1 { + int x[6] PACKED; +}; + +// CHECK: Type: struct X1 +struct X1 : public X0, public Empty2 { + char x[13]; + struct X0 y; +} PACKED; + +// CHECK: Type: struct X2 +struct PACKED X2 : public X1, public X0, public Empty1 { + short x; + int y; +}; + +// CHECK: Type: struct X3 +struct PACKED X3 : virtual public X1, public X0 { + short x; + int y; +}; + +// CHECK: Type: struct X4 +struct PACKED X4 { + unsigned int a : 1; + unsigned int b : 1; + unsigned int c : 1; + unsigned int d : 1; + unsigned int e : 1; + unsigned int f : 1; + unsigned int g : 1; + unsigned int h : 1; + unsigned int i : 1; + unsigned int j : 1; + unsigned int k : 1; + unsigned int l : 1; + unsigned int m : 1; + unsigned int n : 1; + X4(); +}; + +void use_structs() { + X0 x0s[sizeof(X0)]; + X1 x1s[sizeof(X1)]; + X2 x2s[sizeof(X2)]; + X3 x3s[sizeof(X3)]; + X4 x4s[sizeof(X4)]; + x4s[1].a = 1; +} |