1; RUN: opt < %s -analyze -scalar-evolution |& not grep smax 2; PR2261 3 4@lut = common global [256 x i8] zeroinitializer, align 32 ; <[256 x i8]*> [#uses=1] 5 6define void @foo(i32 %count, i32* %srcptr, i32* %dstptr) nounwind { 7entry: 8 icmp sgt i32 %count, 0 ; <i1>:0 [#uses=1] 9 br i1 %0, label %bb.nph, label %return 10 11bb.nph: ; preds = %entry 12 br label %bb 13 14bb: ; preds = %bb1, %bb.nph 15 %j.01 = phi i32 [ %8, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=1] 16 load i32* %srcptr, align 4 ; <i32>:1 [#uses=2] 17 and i32 %1, 255 ; <i32>:2 [#uses=1] 18 and i32 %1, -256 ; <i32>:3 [#uses=1] 19 getelementptr [256 x i8]* @lut, i32 0, i32 %2 ; <i8*>:4 [#uses=1] 20 load i8* %4, align 1 ; <i8>:5 [#uses=1] 21 zext i8 %5 to i32 ; <i32>:6 [#uses=1] 22 or i32 %6, %3 ; <i32>:7 [#uses=1] 23 store i32 %7, i32* %dstptr, align 4 24 add i32 %j.01, 1 ; <i32>:8 [#uses=2] 25 br label %bb1 26 27bb1: ; preds = %bb 28 icmp slt i32 %8, %count ; <i1>:9 [#uses=1] 29 br i1 %9, label %bb, label %bb1.return_crit_edge 30 31bb1.return_crit_edge: ; preds = %bb1 32 br label %return 33 34return: ; preds = %bb1.return_crit_edge, %entry 35 ret void 36} 37