diff --git a/test/CodeGen/Generic/2010-11-11-ReturnBigBuffer.ll b/test/CodeGen/Generic/2010-11-11-ReturnBigBuffer.ll new file mode 100644 index 00000000000..73e26e7929f --- /dev/null +++ b/test/CodeGen/Generic/2010-11-11-ReturnBigBuffer.ll @@ -0,0 +1,31 @@ +; RUN: llc < %s PR8287: SelectionDag scheduling time. +; Yes, some front end really produces this code. But that is a +; separate bug. This is more an example than a real test, because I +; don't know how give llvm-lit a timeout. + +define void @foo([4096 x i8]* %arg1, [4096 x i8]* %arg2) { + %buffer = alloca [4096 x i8] + %pbuf = alloca [4096 x i8]* + store [4096 x i8]* %buffer, [4096 x i8]** %pbuf + + %parg1 = alloca [4096 x i8]* + store [4096 x i8]* %arg1, [4096 x i8]** %parg1 + + %parg2 = alloca [4096 x i8]* + store [4096 x i8]* %arg2, [4096 x i8]** %parg2 + + ; The original test case has intermediate blocks. + ; Presumably something fills in "buffer". + + %bufferCopy1 = load [4096 x i8]** %pbuf + %dataCopy1 = load [4096 x i8]* %bufferCopy1 + %arg1Copy = load [4096 x i8]** %parg1 + store [4096 x i8] %dataCopy1, [4096 x i8]* %arg1Copy + + %bufferCopy2 = load [4096 x i8]** %pbuf + %dataCopy2 = load [4096 x i8]* %bufferCopy2 + %arg2Copy = load [4096 x i8]** %parg2 + store [4096 x i8] %dataCopy2, [4096 x i8]* %arg2Copy + + ret void +}