diff options
| author | Chris Lattner <sabre@nondot.org> | 2008-06-16 17:15:14 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-06-16 17:15:14 +0000 |
| commit | 9e800e3dd80d77f6c47054738177bf824089f55a (patch) | |
| tree | 68eef8753e3a528defc77644eb30ecf7ce9be190 /lib/CodeGen/CGBuiltin.cpp | |
| parent | 1e692ace08959399794363e77499b73da5494af9 (diff) | |
force size of alloca to i32, which is currently required by LLVM IR.
This fixes use of alloca on 64-bit systems.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@52334 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGBuiltin.cpp')
| -rw-r--r-- | lib/CodeGen/CGBuiltin.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp index 51d7ced2d8..f8132f417d 100644 --- a/lib/CodeGen/CGBuiltin.cpp +++ b/lib/CodeGen/CGBuiltin.cpp @@ -261,10 +261,13 @@ RValue CodeGenFunction::EmitBuiltinExpr(unsigned BuiltinID, const CallExpr *E) { return RValue::get(Builder.CreateZExt(LHS, ConvertType(E->getType()), "tmp")); } - case Builtin::BI__builtin_alloca: - return RValue::get(Builder.CreateAlloca(llvm::Type::Int8Ty, - EmitScalarExpr(E->getArg(0)), + case Builtin::BI__builtin_alloca: { + // FIXME: LLVM IR Should allow alloca with an i64 size! + Value *Size = EmitScalarExpr(E->getArg(0)); + Size = Builder.CreateIntCast(Size, llvm::Type::Int32Ty, false, "tmp"); + return RValue::get(Builder.CreateAlloca(llvm::Type::Int8Ty, Size, "tmp")); + } case Builtin::BI__builtin_memcpy: { Value* MemCpyOps[4] = { EmitScalarExpr(E->getArg(0)), |