| ; RUN: opt < %s -passes=instcombine -S | grep "fadd double .sx, .sy" |
| ; The 'or' has multiple uses, make sure that this doesn't prevent instcombine |
| ; from propagating the extends to the truncs. |
| |
| define double @ScaleObjectAdd(double %sx, double %sy, double %sz) nounwind { |
| entry: |
| %sx34 = bitcast double %sx to i64 ; <i64> [#uses=1] |
| %sx3435 = zext i64 %sx34 to i192 ; <i192> [#uses=1] |
| %sy22 = bitcast double %sy to i64 ; <i64> [#uses=1] |
| %sy2223 = zext i64 %sy22 to i192 ; <i192> [#uses=1] |
| %sy222324 = shl i192 %sy2223, 128 ; <i192> [#uses=1] |
| %sy222324.ins = or i192 %sx3435, %sy222324 ; <i192> [#uses=1] |
| |
| |
| %a = trunc i192 %sy222324.ins to i64 ; <i64> [#uses=1] |
| %b = bitcast i64 %a to double ; <double> [#uses=1] |
| %c = lshr i192 %sy222324.ins, 128 ; <i192> [#uses=1] |
| %d = trunc i192 %c to i64 ; <i64> [#uses=1] |
| %e = bitcast i64 %d to double ; <double> [#uses=1] |
| %f = fadd double %b, %e |
| |
| ; ret double %e |
| ret double %f |
| } |