diff options
| -rw-r--r-- | lib/CodeGen/CGDecl.cpp | 5 | ||||
| -rw-r--r-- | test/CodeGen/align-param.c | 9 |
2 files changed, 13 insertions, 1 deletions
diff --git a/lib/CodeGen/CGDecl.cpp b/lib/CodeGen/CGDecl.cpp index a6147ea765..384d92a9bf 100644 --- a/lib/CodeGen/CGDecl.cpp +++ b/lib/CodeGen/CGDecl.cpp @@ -1442,7 +1442,10 @@ void CodeGenFunction::EmitParmDecl(const VarDecl &D, llvm::Value *Arg, DeclPtr = Arg; } else { // Otherwise, create a temporary to hold the value. - DeclPtr = CreateMemTemp(Ty, D.getName() + ".addr"); + llvm::AllocaInst *Alloc = CreateTempAlloca(ConvertTypeForMem(Ty), + D.getName() + ".addr"); + Alloc->setAlignment(getContext().getDeclAlign(&D).getQuantity()); + DeclPtr = Alloc; bool doStore = true; diff --git a/test/CodeGen/align-param.c b/test/CodeGen/align-param.c new file mode 100644 index 0000000000..15a8c2a79a --- /dev/null +++ b/test/CodeGen/align-param.c @@ -0,0 +1,9 @@ +// RUN: %clang_cc1 -emit-llvm -triple i386-apple-macosx10.7.2 < %s | FileCheck %s + +// The preferred alignment for a long long on x86-32 is 8; make sure the +// alloca for x uses that alignment. +int test (long long x) { + return (int)x; +} +// CHECK: define i32 @test +// CHECK: alloca i64, align 8 |