ARM TLS: implement "general dynamic", "initial exec" and "local exec" models.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36506 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMInstrThumb.td b/lib/Target/ARM/ARMInstrThumb.td
index 4819636..fa66ddc 100644
--- a/lib/Target/ARM/ARMInstrThumb.td
+++ b/lib/Target/ARM/ARMInstrThumb.td
@@ -524,6 +524,18 @@
[]>;
//===----------------------------------------------------------------------===//
+// TLS Instructions
+//
+
+// __aeabi_read_tp preserves the registers r1-r3.
+let isCall = 1,
+ Defs = [R0, LR] in {
+ def tTPsoft : TIx2<(ops),
+ "bl __aeabi_read_tp",
+ [(set R0, ARMthread_pointer)]>;
+}
+
+//===----------------------------------------------------------------------===//
// Non-Instruction Patterns
//