Fix PR 4004 by including the call to __tls_get_addr in X86tlsaddr. This is not

[oota-llvm.git] / lib / Target / X86 / X86InstrInfo.td

diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index 462433bb27b33b22fdf1c4add693d37178bd9ce5..3aa344738d06050cdede9ce8867317fe3526d41b 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -2977,9 +2977,16 @@ def MOV32r0  : I<0x31, MRMInitReg,  (outs GR32:$dst), (ins),
 // Thread Local Storage Instructions
 //
 
-let hasSideEffects = 1, Uses = [EBX], Defs = [EAX] in
+// All calls clobber the non-callee saved registers. ESP is marked as
+// a use to prevent stack-pointer assignments that appear immediately
+// before calls from potentially appearing dead.
+let Defs = [EAX, ECX, EDX, FP0, FP1, FP2, FP3, FP4, FP5, FP6, ST0,
+            MM0, MM1, MM2, MM3, MM4, MM5, MM6, MM7,
+            XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7,
+            XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15, EFLAGS],
+    Uses = [ESP, EBX] in
 def TLS_addr32 : I<0, Pseudo, (outs), (ins i32imm:$sym),
-                  "leal\t${sym:mem}(,%ebx,1), %eax",
+                  "leal\t${sym:mem}(,%ebx,1), %eax; call\t___tls_get_addr@PLT",
                   [(X86tlsaddr tglobaltlsaddr:$sym)]>,
                   Requires<[In32BitMode]>;