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llvm-project/llvm/test/Transforms/IndVarSimplify/2008-06-15-SCEVExpanderBug.ll

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Change tests from "opt %s" to "opt < %s" so that opt doesn't see the input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. llvm-svn: 81537
2009-09-12 02:01:28 +08:00
; RUN: opt < %s -indvars -disable-output
Fix PR2434. When scanning for exising binary operator to reuse don't take into account the instrucion pointed by InsertPt. Thanks to it, returning the new value of InsertPt to the InsertBinop() caller can be avoided. The bug was, actually, in visitAddRecExpr() method which wasn't correctly handling changes of InsertPt. There shouldn't be any performance regression, as -gvn pass (run after -indvars) removes any redundant binops. llvm-svn: 52291
2008-06-16 03:07:39 +08:00
; PR2434
define fastcc void @regcppop() nounwind {
entry:
%tmp61 = add i32 0, -5 ; <i32> [#uses=1]
br label %bb
bb: ; preds = %bb, %entry
%PL_savestack_ix.tmp.0 = phi i32 [ %tmp61, %entry ], [ %tmp127, %bb ] ; <i32> [#uses=2]
%indvar10 = phi i32 [ 0, %entry ], [ %indvar.next11, %bb ] ; <i32> [#uses=2]
%tmp13 = mul i32 %indvar10, -4 ; <i32> [#uses=0]
%tmp111 = add i32 %PL_savestack_ix.tmp.0, -3 ; <i32> [#uses=0]
%tmp127 = add i32 %PL_savestack_ix.tmp.0, -4 ; <i32> [#uses=1]
%indvar.next11 = add i32 %indvar10, 1 ; <i32> [#uses=1]
br label %bb
}