1 ; RUN: opt < %s -analyze -scalar-evolution 2>&1 | FileCheck %s 2 ; PR2070 3 4 ; CHECK: Printing analysis 'Scalar Evolution Analysis' for function 'a' 5 ; CHECK-NOT: smax 6 7 define i32 @a(i32 %x) nounwind { 8 entry: 9 icmp sgt i32 %x, 1 ; <i1>:0 [#uses=1] 10 br i1 %0, label %bb.nph, label %bb2 11 12 bb.nph: ; preds = %entry 13 br label %bb 14 15 bb: ; preds = %bb1, %bb.nph 16 %z.02 = phi i32 [ %1, %bb1 ], [ 1, %bb.nph ] ; <i32> [#uses=1] 17 %i.01 = phi i32 [ %2, %bb1 ], [ 1, %bb.nph ] ; <i32> [#uses=2] 18 mul i32 %z.02, %i.01 ; <i32>:1 [#uses=2] 19 add i32 %i.01, 1 ; <i32>:2 [#uses=2] 20 br label %bb1 21 22 bb1: ; preds = %bb 23 icmp slt i32 %2, %x ; <i1>:3 [#uses=1] 24 br i1 %3, label %bb, label %bb1.bb2_crit_edge 25 26 bb1.bb2_crit_edge: ; preds = %bb1 27 %.lcssa = phi i32 [ %1, %bb1 ] ; <i32> [#uses=1] 28 br label %bb2 29 30 bb2: ; preds = %bb1.bb2_crit_edge, %entry 31 %z.0.lcssa = phi i32 [ %.lcssa, %bb1.bb2_crit_edge ], [ 1, %entry ] ; <i32> [#uses=1] 32 ret i32 %z.0.lcssa 33 } 34
