Treat floating point ST1 the same as ST0 when lowering for a call result
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55135 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 9a77c8e..fdc4618 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -969,7 +969,8 @@
// If this is a call to a function that returns an fp value on the floating
// point stack, but where we prefer to use the value in xmm registers, copy
// it out as F80 and use a truncate to move it from fp stack reg to xmm reg.
- if (RVLocs[i].getLocReg() == X86::ST0 &&
+ if ((RVLocs[i].getLocReg() == X86::ST0 ||
+ RVLocs[i].getLocReg() == X86::ST1) &&
isScalarFPTypeInSSEReg(RVLocs[i].getValVT())) {
CopyVT = MVT::f80;
}