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| author | Eli Friedman <eli.friedman@gmail.com> | 2011-09-19 23:17:44 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2011-09-19 23:17:44 +0000 |
| commit | 0c706c29f20b6fa36759fa41333b9c3ec0bd2969 (patch) | |
| tree | cff749b4d8a9d6e5b4fbae39c4f4e710307366c0 /lib/CodeGen/CGExprConstant.cpp | |
| parent | 40ccaccd21a4377cd76d6adda2b192dcf9514ef6 (diff) | |
Add list initialization for complex numbers in C. Essentially, this allows "_Complex float x = {1.0f, 2.0f};". See changes to docs/LanguageExtensions.html for a longer description.
<rdar://problem/9397672>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140090 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGExprConstant.cpp')
| -rw-r--r-- | lib/CodeGen/CGExprConstant.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/CodeGen/CGExprConstant.cpp b/lib/CodeGen/CGExprConstant.cpp index c0b7045a52..d7dfa253ad 100644 --- a/lib/CodeGen/CGExprConstant.cpp +++ b/lib/CodeGen/CGExprConstant.cpp @@ -742,6 +742,22 @@ public: } llvm::Constant *VisitInitListExpr(InitListExpr *ILE) { + if (ILE->getType()->isAnyComplexType() && ILE->getNumInits() == 2) { + // Complex type with element initializers + Expr *Real = ILE->getInit(0); + Expr *Imag = ILE->getInit(1); + llvm::Constant *Complex[2]; + Complex[0] = CGM.EmitConstantExpr(Real, Real->getType(), CGF); + if (!Complex[0]) + return 0; + Complex[1] = CGM.EmitConstantExpr(Imag, Imag->getType(), CGF); + if (!Complex[1]) + return 0; + llvm::StructType *STy = + cast<llvm::StructType>(ConvertType(ILE->getType())); + return llvm::ConstantStruct::get(STy, Complex); + } + if (ILE->getType()->isScalarType()) { // We have a scalar in braces. Just use the first element. if (ILE->getNumInits() > 0) { |