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New testcase that used to cause the unroller to try to unroll the loop 2G times. :(

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13563 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-05-13 20:43:15 +00:00
parent d1fbc8af48
commit 488b72bd7f
1 changed files with 15 additions and 0 deletions
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15
test/Transforms/LoopUnroll/2004-05-13-DontUnrollTooMuch.ll Normal file
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; RUN: llvm-as < %s | opt -loop-unroll -disable-output
int %main() {
entry:
br label %no_exit
no_exit: ; preds = %entry, %no_exit
%indvar = phi uint [ 0, %entry ], [ %indvar.next, %no_exit ] ; <uint> [#uses=1]
%indvar.next = add uint %indvar, 1 ; <uint> [#uses=2]
%exitcond = setne uint %indvar.next, 2147483648 ; <bool> [#uses=1]
br bool %exitcond, label %no_exit, label %loopexit
loopexit: ; preds = %no_exit
ret int 0
}