For general dynamic TLS access we must use

leaq	foo@TLSGD(%rip), %rdi

as part of the instruction sequence. Using a register other than %rdi and then
copying it to %rdi is not valid.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69350 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/X86/2009-04-17-tls-fast.ll

@@ -0,0 +1,17 @@
+; RUN: llvm-as < %s | llc -march=x86-64 -mtriple=x86_64-linux-gnu -relocation-model=pic -regalloc=local > %t
+; RUN: grep {leaq	foo@TLSGD(%rip), %rdi} %t
+
+@foo = internal thread_local global i32 100
+
+define void @f(i32 %n) nounwind {
+entry:
+	%n_addr = alloca i32
+	%p = alloca i32*
+	%"alloca point" = bitcast i32 0 to i32
+	store i32 %n, i32* %n_addr
+	store i32* @foo, i32** %p, align 8
+	br label %return
+
+return:
+	ret void
+}