Index: lib/Target/X86/X86ISelLowering.cpp =================================================================== --- lib/Target/X86/X86ISelLowering.cpp +++ lib/Target/X86/X86ISelLowering.cpp @@ -3083,10 +3083,11 @@ // through a register, since the call instruction's 32-bit // pc-relative offset may not be large enough to hold the whole // address. - } else if (GlobalAddressSDNode *G = dyn_cast(Callee)) { + } else if (Callee->getOpcode() == ISD::GlobalAddress) { // If the callee is a GlobalAddress node (quite common, every direct call // is) turn it into a TargetGlobalAddress node so that legalize doesn't hack // it. + GlobalAddressSDNode* G = cast(Callee); // We should use extra load for direct calls to dllimported functions in // non-JIT mode. Index: test/CodeGen/X86/pr22103.ll =================================================================== --- test/CodeGen/X86/pr22103.ll +++ test/CodeGen/X86/pr22103.ll @@ -0,0 +1,16 @@ +; RUN: llc < %s | FileCheck %s +; Don't try to emit a direct call through a TLS global. +; This fixes PR22103 + +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +@a = external thread_local global i64 + +; Function Attrs: nounwind +define void @_Z1fv() { +; CHECK-NOT: callq *$a +entry: + call void bitcast (i64* @a to void ()*)() + ret void +}