[llvm-commits] CVS: llvm/test/Regression/Transforms/IndVarsSimplify/2003-12-10-IndVarDeadCode.ll

[Chris Lattner]

Changes in directory llvm/test/Regression/Transforms/IndVarsSimplify:

2003-12-10-IndVarDeadCode.ll added (r1.1)

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Log message:

New testcase


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Diffs of the changes:  (+23 -0)

Index: llvm/test/Regression/Transforms/IndVarsSimplify/2003-12-10-IndVarDeadCode.ll
diff -c /dev/null llvm/test/Regression/Transforms/IndVarsSimplify/2003-12-10-IndVarDeadCode.ll:1.1
*** /dev/null	Wed Dec 10 11:57:48 2003
--- llvm/test/Regression/Transforms/IndVarsSimplify/2003-12-10-IndVarDeadCode.ll	Wed Dec 10 11:57:38 2003
***************
*** 0 ****
--- 1,23 ----
+ ; 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
+ }