From a126bb71d5ba119fcddabfe022fad9647b9f1bf0 Mon Sep 17 00:00:00 2001 From: Lauro Ramos Venancio Date: Wed, 11 Jul 2007 19:56:53 +0000 Subject: [PATCH] Handle packed structs in the CBackend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39752 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/CBackend/CBackend.cpp | 5 ++++- test/CodeGen/CBackend/2007-07-11-PackedStruct.ll | 9 +++++++++ 2 files changed, 13 insertions(+), 1 deletion(-) create mode 100644 test/CodeGen/CBackend/2007-07-11-PackedStruct.ll diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp index 91f427fa2cb..b0c76c8e8e7 100644 --- a/lib/Target/CBackend/CBackend.cpp +++ b/lib/Target/CBackend/CBackend.cpp @@ -466,7 +466,10 @@ std::ostream &CWriter::printType(std::ostream &Out, const Type *Ty, printType(Out, *I, false, "field" + utostr(Idx++)); Out << ";\n"; } - return Out << '}'; + Out << '}'; + if (STy->isPacked()) + Out << " __attribute__ ((packed))"; + return Out; } case Type::PointerTyID: { diff --git a/test/CodeGen/CBackend/2007-07-11-PackedStruct.ll b/test/CodeGen/CBackend/2007-07-11-PackedStruct.ll new file mode 100644 index 00000000000..60576161118 --- /dev/null +++ b/test/CodeGen/CBackend/2007-07-11-PackedStruct.ll @@ -0,0 +1,9 @@ +; RUN: llvm-as < %s | llc -march=c | grep {packed} + + %struct.p = type <{ i16 }> + +define i32 @main() { +entry: + %t = alloca %struct.p, align 2 + ret i32 5 +} -- 2.34.1