Handle a v2f64 formal parameter that is split between registers and memory
such that the entire second half is in memory. Radar 7855014.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101181 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 4fb9599..cd0268d 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -1613,10 +1613,8 @@
SDValue ArgValue2;
if (NextVA.isMemLoc()) {
- unsigned ArgSize = NextVA.getLocVT().getSizeInBits()/8;
MachineFrameInfo *MFI = MF.getFrameInfo();
- int FI = MFI->CreateFixedObject(ArgSize, NextVA.getLocMemOffset(),
- true, false);
+ int FI = MFI->CreateFixedObject(4, NextVA.getLocMemOffset(), true, false);
// Create load node to retrieve arguments from the stack.
SDValue FIN = DAG.getFrameIndex(FI, getPointerTy());
@@ -1665,14 +1663,22 @@
if (VA.needsCustom()) {
// f64 and vector types are split up into multiple registers or
// combinations of registers and stack slots.
- RegVT = MVT::i32;
-
if (VA.getLocVT() == MVT::v2f64) {
SDValue ArgValue1 = GetF64FormalArgument(VA, ArgLocs[++i],
Chain, DAG, dl);
VA = ArgLocs[++i]; // skip ahead to next loc
- SDValue ArgValue2 = GetF64FormalArgument(VA, ArgLocs[++i],
- Chain, DAG, dl);
+ SDValue ArgValue2;
+ if (VA.isMemLoc()) {
+ int FI = MFI->CreateFixedObject(8, VA.getLocMemOffset(),
+ true, false);
+ SDValue FIN = DAG.getFrameIndex(FI, getPointerTy());
+ ArgValue2 = DAG.getLoad(MVT::f64, dl, Chain, FIN,
+ PseudoSourceValue::getFixedStack(FI), 0,
+ false, false, 0);
+ } else {
+ ArgValue2 = GetF64FormalArgument(VA, ArgLocs[++i],
+ Chain, DAG, dl);
+ }
ArgValue = DAG.getNode(ISD::UNDEF, dl, MVT::v2f64);
ArgValue = DAG.getNode(ISD::INSERT_VECTOR_ELT, dl, MVT::v2f64,
ArgValue, ArgValue1, DAG.getIntPtrConstant(0));
diff --git a/test/CodeGen/ARM/2010-04-13-v2f64SplitArg.ll b/test/CodeGen/ARM/2010-04-13-v2f64SplitArg.ll
new file mode 100644
index 0000000..4f71b83
--- /dev/null
+++ b/test/CodeGen/ARM/2010-04-13-v2f64SplitArg.ll
@@ -0,0 +1,7 @@
+; RUN: llc < %s -mtriple=arm-apple-darwin -mcpu=cortex-a8
+; Radar 7855014
+
+define arm_apcscc void @test1(i32 %f0, i32 %f1, i32 %f2, <4 x i32> %f3) nounwind {
+entry:
+ unreachable
+}