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| author | David Majnemer <david.majnemer@gmail.com> | 2015-03-14 22:24:38 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2015-03-14 22:24:38 +0000 |
| commit | 8062eb6bede3bb92e8c2e119cc0985ab336247a1 (patch) | |
| tree | 4b40a67175db996484046991d25e367c5032b501 /clang/test/CodeGenCXX/const-init.cpp | |
| parent | b344ac9afe6a2a270cceeea14926873ed58ee507 (diff) | |
| download | bcm5719-llvm-8062eb6bede3bb92e8c2e119cc0985ab336247a1.tar.gz bcm5719-llvm-8062eb6bede3bb92e8c2e119cc0985ab336247a1.zip | |
CodeGen: Correctly initialize bitfields with non-constant initializers
It is possible to construct an initializer for a bitfield which is not
constant. Instead of emitting code to initialize the field before the
execution of main, clang would crash.
llvm-svn: 232285
Diffstat (limited to 'clang/test/CodeGenCXX/const-init.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/const-init.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/clang/test/CodeGenCXX/const-init.cpp b/clang/test/CodeGenCXX/const-init.cpp index 3dc8f673030..deb923a7089 100644 --- a/clang/test/CodeGenCXX/const-init.cpp +++ b/clang/test/CodeGenCXX/const-init.cpp @@ -1,4 +1,4 @@ -// RUN: not %clang_cc1 -verify -triple x86_64-apple-darwin -emit-llvm -o - %s | FileCheck %s +// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s | FileCheck %s // CHECK: @a = global i32 10 int a = 10; @@ -76,3 +76,10 @@ int &i = reinterpret_cast<int&>(PR9558); int arr[2]; // CHECK: @pastEnd = constant i32* bitcast (i8* getelementptr (i8, i8* bitcast ([2 x i32]* @arr to i8*), i64 8) to i32*) int &pastEnd = arr[2]; + +struct X { + long n : 8; +}; +long k; +X x = {(long)&k}; +// CHECK: store i8 ptrtoint (i64* @k to i8), i8* getelementptr inbounds (%struct.X, %struct.X* @x, i32 0, i32 0) |
