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1; RUN: opt -S -passes=instcombine < %s | FileCheck %s2 3@c = common global i8 0, align 14@a = common global i8 0, align 15@b = common global i8 0, align 16 7define void @func() nounwind uwtable ssp {8entry:9 %0 = load i8, ptr @c, align 110 %conv = zext i8 %0 to i3211 %or = or i32 %conv, 112 %conv1 = trunc i32 %or to i813 store i8 %conv1, ptr @a, align 114 %conv2 = zext i8 %conv1 to i3215 %neg = xor i32 %conv2, -116 %and = and i32 1, %neg17 %conv3 = trunc i32 %and to i818 store i8 %conv3, ptr @b, align 119 %1 = load i8, ptr @a, align 120 %conv4 = zext i8 %1 to i3221 %conv5 = zext i8 %conv3 to i3222 %tobool = icmp ne i32 %conv4, 023 br i1 %tobool, label %land.rhs, label %land.end24 25land.rhs: ; preds = %entry26 %tobool8 = icmp ne i32 %conv5, 027 br label %land.end28 29land.end: ; preds = %land.rhs, %entry30 %2 = phi i1 [ false, %entry ], [ %tobool8, %land.rhs ]31 %land.ext = zext i1 %2 to i3232 %mul = mul nsw i32 3, %land.ext33 %conv9 = trunc i32 %mul to i834 store i8 %conv9, ptr @a, align 135 ret void36 37; CHECK-LABEL: @func(38; CHECK-NOT: select39}40