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authorRobert Lytton <robert@xmos.com>2013-11-12 10:11:35 +0000
committerRobert Lytton <robert@xmos.com>2013-11-12 10:11:35 +0000
commit47a4349eb659e021899348f009650b9cadaf0de2 (patch)
treef99219c5bd092d054ed1b6ae8d25910eda955222
parent092815ce4be4a57d1520e73fdaaa95933aa38f81 (diff)
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XCore target: fix bug in aligning 'byval i8*' on the stack
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194466 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/Target/XCore/XCoreISelLowering.cpp2
-rw-r--r--test/CodeGen/XCore/byVal.ll15
2 files changed, 16 insertions, 1 deletions
diff --git a/lib/Target/XCore/XCoreISelLowering.cpp b/lib/Target/XCore/XCoreISelLowering.cpp
index 149652ff73..a382a189cf 100644
--- a/lib/Target/XCore/XCoreISelLowering.cpp
+++ b/lib/Target/XCore/XCoreISelLowering.cpp
@@ -1224,7 +1224,7 @@ XCoreTargetLowering::LowerCCCArguments(SDValue Chain,
ArgDI != ArgDE; ++ArgDI) {
if (ArgDI->Flags.isByVal() && ArgDI->Flags.getByValSize()) {
unsigned Size = ArgDI->Flags.getByValSize();
- unsigned Align = ArgDI->Flags.getByValAlign();
+ unsigned Align = std::max(StackSlotSize, ArgDI->Flags.getByValAlign());
// Create a new object on the stack and copy the pointee into it.
int FI = MFI->CreateStackObject(Size, Align, false, false);
SDValue FIN = DAG.getFrameIndex(FI, MVT::i32);
diff --git a/test/CodeGen/XCore/byVal.ll b/test/CodeGen/XCore/byVal.ll
index a5d25d2d95..e9612fd602 100644
--- a/test/CodeGen/XCore/byVal.ll
+++ b/test/CodeGen/XCore/byVal.ll
@@ -56,3 +56,18 @@ entry:
call void @f2(i32 %i, %struct.st2* %s2)
ret void
}
+
+; CHECK-LABEL: f3Test
+; CHECK: entsp 2
+; CHECK: ldc r1, 0
+; CHECK: ld8u r2, r0[r1]
+; CHECK: ldaw r0, sp[1]
+; CHECK: st8 r2, r0[r1]
+; CHECK: bl f
+; CHECK: retsp 2
+declare void @f3(i8*) nounwind
+define void @f3Test(i8* byval %v) nounwind {
+entry:
+ call void @f3(i8* %v) nounwind
+ ret void
+}