fast-isel sret calls, try 2. We actually do need to do something on x86-32. rdar://problem/9303592 .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130429 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp
index 82ed9ba..1382f18 100644
--- a/lib/Target/X86/X86FastISel.cpp
+++ b/lib/Target/X86/X86FastISel.cpp
@@ -1618,7 +1618,6 @@
// FIXME: Only handle *easy* calls for now.
if (CS.paramHasAttr(AttrInd, Attribute::InReg) ||
- CS.paramHasAttr(AttrInd, Attribute::StructRet) ||
CS.paramHasAttr(AttrInd, Attribute::Nest) ||
CS.paramHasAttr(AttrInd, Attribute::ByVal))
return false;
@@ -1811,8 +1810,11 @@
// Issue CALLSEQ_END
unsigned AdjStackUp = TM.getRegisterInfo()->getCallFrameDestroyOpcode();
+ unsigned NumBytesCallee = 0;
+ if (!Subtarget->is64Bit() && CS.paramHasAttr(1, Attribute::StructRet))
+ NumBytesCallee = 4;
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, TII.get(AdjStackUp))
- .addImm(NumBytes).addImm(0);
+ .addImm(NumBytes).addImm(NumBytesCallee);
// Now handle call return value (if any).
SmallVector<unsigned, 4> UsedRegs;