1 ; RUN: opt < %s -instcombine -S | grep "fadd double .sx, .sy"
2 ; The 'or' has multiple uses, make sure that this doesn't prevent instcombine
3 ; from propagating the extends to the truncs.
5 define double @ScaleObjectAdd(double %sx, double %sy, double %sz) nounwind {
7 %sx34 = bitcast double %sx to i64 ; <i64> [#uses=1]
8 %sx3435 = zext i64 %sx34 to i192 ; <i192> [#uses=1]
9 %sy22 = bitcast double %sy to i64 ; <i64> [#uses=1]
10 %sy2223 = zext i64 %sy22 to i192 ; <i192> [#uses=1]
11 %sy222324 = shl i192 %sy2223, 128 ; <i192> [#uses=1]
12 %sy222324.ins = or i192 %sx3435, %sy222324 ; <i192> [#uses=1]
15 %a = trunc i192 %sy222324.ins to i64 ; <i64> [#uses=1]
16 %b = bitcast i64 %a to double ; <double> [#uses=1]
17 %c = lshr i192 %sy222324.ins, 128 ; <i192> [#uses=1]
18 %d = trunc i192 %c to i64 ; <i64> [#uses=1]
19 %e = bitcast i64 %d to double ; <double> [#uses=1]
20 %f = fadd double %b, %e