diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp index e00697cecb4..e7b70b17ef8 100644 --- a/lib/Target/X86/X86FastISel.cpp +++ b/lib/Target/X86/X86FastISel.cpp @@ -21,6 +21,7 @@ #include "X86TargetMachine.h" #include "llvm/CallingConv.h" #include "llvm/DerivedTypes.h" +#include "llvm/GlobalVariable.h" #include "llvm/Instructions.h" #include "llvm/Intrinsics.h" #include "llvm/CodeGen/FastISel.h" @@ -433,6 +434,11 @@ bool X86FastISel::X86SelectAddress(Value *V, X86AddressMode &AM, bool isCall) { (AM.Base.Reg != 0 || AM.IndexReg != 0)) return false; + // Can't handle TLS yet. + if (GlobalVariable *GVar = dyn_cast(GV)) + if (GVar->isThreadLocal()) + return false; + // Set up the basic address. AM.GV = GV; if (!isCall && diff --git a/test/CodeGen/X86/fast-isel-tls.ll b/test/CodeGen/X86/fast-isel-tls.ll new file mode 100644 index 00000000000..4dd14e6b216 --- /dev/null +++ b/test/CodeGen/X86/fast-isel-tls.ll @@ -0,0 +1,10 @@ +; RUN: llvm-as < %s | llc -march=x86 -relocation-model=pic -mtriple=i686-unknown-linux-gnu -fast-isel | grep __tls_get_addr +; PR3654 + +@v = thread_local global i32 0 +define i32 @f() nounwind { +entry: + %t = load i32* @v + %s = add i32 %t, 1 + ret i32 %s +}