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Test case for PR8287: SD scheduling time. Fixed in r118904. 

llvm-svn: 118906
This commit is contained in:
Andrew Trick 2010-11-12 17:57:22 +00:00
parent 0deb9c20c0
commit ff5f8680d8
1 changed files with 31 additions and 0 deletions
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llvm/test/CodeGen/Generic/2010-11-11-ReturnBigBuffer.ll Normal file
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; 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
}