YouCompleteMe/cpp/llvm/test/Transforms/InstCombine/sdiv-2.ll

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2012-07-05 20:51:06 -04:00
; RUN: opt < %s -instcombine -disable-output
; PR3144
define fastcc i32 @func(i32 %length) nounwind {
entry:
%0 = icmp ne i32 %length, -1 ; <i1> [#uses=1]
%iftmp.13.0 = select i1 %0, i128 0, i128 200000000 ; <i128> [#uses=2]
%1 = sdiv i128 %iftmp.13.0, 10 ; <i128> [#uses=1]
br label %bb5
bb5: ; preds = %bb8, %entry
%v.0 = phi i128 [ 0, %entry ], [ %6, %bb8 ] ; <i128> [#uses=2]
%2 = icmp sgt i128 %v.0, %1 ; <i1> [#uses=1]
br i1 %2, label %overflow, label %bb7
bb7: ; preds = %bb5
%3 = mul i128 %v.0, 10 ; <i128> [#uses=2]
%4 = sub i128 %iftmp.13.0, 0 ; <i128> [#uses=1]
%5 = icmp slt i128 %4, %3 ; <i1> [#uses=1]
br i1 %5, label %overflow, label %bb8
bb8: ; preds = %bb7
%6 = add i128 0, %3 ; <i128> [#uses=1]
br label %bb5
overflow: ; preds = %bb7, %bb5
ret i32 1
}