[SPARC] Use the correct register set for the "r" asm constraint.
64bit mode must use 64bit registers, otherwise assumptions about the top
half of the registers are made. Problem found by Takeshi Nakayama in
NetBSD.
llvm-svn: 358998
diff --git a/llvm/lib/Target/Sparc/SparcISelLowering.cpp b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
index 05c6cce..a6d440f 100644
--- a/llvm/lib/Target/Sparc/SparcISelLowering.cpp
+++ b/llvm/lib/Target/Sparc/SparcISelLowering.cpp
@@ -3258,6 +3258,8 @@
case 'r':
if (VT == MVT::v2i32)
return std::make_pair(0U, &SP::IntPairRegClass);
+ else if (Subtarget->is64Bit())
+ return std::make_pair(0U, &SP::I64RegsRegClass);
else
return std::make_pair(0U, &SP::IntRegsRegClass);
case 'f':