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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10374 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2003-12-10 17:57:38 +00:00
parent 66ea98e85c
commit 7277826d7e
1 changed files with 23 additions and 0 deletions
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test/Transforms/IndVarsSimplify/2003-12-10-IndVarDeadCode.ll Normal file
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; The induction variable canonicalization pass shouldn't leave dead
; instructions laying around!
;
; RUN: llvm-as < %s | opt -indvars | llvm-dis | not grep '#uses=0'
int %mul(int %x, int %y) {
entry:
br label %tailrecurse
tailrecurse: ; preds = %entry, %endif
%accumulator.tr = phi int [ %x, %entry ], [ %tmp.9, %endif ] ; <int> [#uses=2]
%y.tr = phi int [ %y, %entry ], [ %tmp.8, %endif ] ; <int> [#uses=2]
%tmp.1 = seteq int %y.tr, 0 ; <bool> [#uses=1]
br bool %tmp.1, label %return, label %endif
endif: ; preds = %tailrecurse
%tmp.8 = add int %y.tr, -1 ; <int> [#uses=1]
%tmp.9 = add int %accumulator.tr, %x ; <int> [#uses=1]
br label %tailrecurse
return: ; preds = %tailrecurse
ret int %accumulator.tr
}