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