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New testcases for PR615

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22689 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-08-07 04:25:39 +00:00
parent 3c304a3ba1
commit 8cc70cbea4
2 changed files with 22 additions and 0 deletions
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11
test/Transforms/TailCallElim/dont-tce-tail-marked-call.ll Normal file
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; RUN: llvm-as < %s | opt -tailcallelim | llvm-dis | grep 'call int %foo'
declare void %bar(int*)
int %foo(uint %N) {
%A = alloca int, uint %N ;; Should stay in entry block because of 'tail' marker
store int 17, int* %A
call void %bar(int* %A)
%X = tail call int %foo(uint %N) ;; Cannot -tailcallelim this without increasing stack usage!
ret int %X
}

11
test/Transforms/TailCallElim/move_alloca_for_tail_call.ll Normal file
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; RUN: llvm-as < %s | opt -tailcallelim | llvm-dis | %prcontext alloca 1 | grep 'int %foo'
declare void %bar(int*)
int %foo() {
%A = alloca int ;; Should stay in entry block because of 'tail' marker
store int 17, int* %A
call void %bar(int* %A)
%X = tail call int %foo()
ret int %X
}