diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 10 | ||||
| -rw-r--r-- | test/CodeGen/X86/2012-02-23-mmx-inlineasm.ll | 12 |
2 files changed, 20 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index 1aca833c3c..667dca14a5 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -352,10 +352,13 @@ static void getCopyToParts(SelectionDAG &DAG, DebugLoc DL, assert(NumParts == 1 && "Do not know what to promote to!"); Val = DAG.getNode(ISD::FP_EXTEND, DL, PartVT, Val); } else { - assert(PartVT.isInteger() && ValueVT.isInteger() && + assert((PartVT.isInteger() || PartVT == MVT::x86mmx) && + ValueVT.isInteger() && "Unknown mismatch!"); ValueVT = EVT::getIntegerVT(*DAG.getContext(), NumParts * PartBits); Val = DAG.getNode(ExtendKind, DL, ValueVT, Val); + if (PartVT == MVT::x86mmx) + Val = DAG.getNode(ISD::BITCAST, DL, PartVT, Val); } } else if (PartBits == ValueVT.getSizeInBits()) { // Different types of the same size. @@ -363,10 +366,13 @@ static void getCopyToParts(SelectionDAG &DAG, DebugLoc DL, Val = DAG.getNode(ISD::BITCAST, DL, PartVT, Val); } else if (NumParts * PartBits < ValueVT.getSizeInBits()) { // If the parts cover less bits than value has, truncate the value. - assert(PartVT.isInteger() && ValueVT.isInteger() && + assert((PartVT.isInteger() || PartVT == MVT::x86mmx) && + ValueVT.isInteger() && "Unknown mismatch!"); ValueVT = EVT::getIntegerVT(*DAG.getContext(), NumParts * PartBits); Val = DAG.getNode(ISD::TRUNCATE, DL, ValueVT, Val); + if (PartVT == MVT::x86mmx) + Val = DAG.getNode(ISD::BITCAST, DL, PartVT, Val); } // The value may have changed - recompute ValueVT. diff --git a/test/CodeGen/X86/2012-02-23-mmx-inlineasm.ll b/test/CodeGen/X86/2012-02-23-mmx-inlineasm.ll new file mode 100644 index 0000000000..1d239d6667 --- /dev/null +++ b/test/CodeGen/X86/2012-02-23-mmx-inlineasm.ll @@ -0,0 +1,12 @@ +; RUN: llc -mcpu=i686 -mattr=+mmx < %s | FileCheck %s +; <rdar://problem/10106006> + +define void @func() nounwind ssp { +; CHECK: psrlw %mm0, %mm1 +entry: + call void asm sideeffect "psrlw $0, %mm1", "y,~{dirflag},~{fpsr},~{flags}"(i32 8) nounwind + unreachable + +bb367: ; preds = %entry + ret void +} |