1 ; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s 2 ; PR3275 3 4 ; CHECK: Printing analysis 'Scalar Evolution Analysis' for function 'func_15' 5 ; CHECK-NOT: /u -1 6 7 @g_16 = external global i16 ; <i16*> [#uses=3] 8 @.str = external constant [4 x i8] ; <[4 x i8]*> [#uses=0] 9 10 define void @func_15() nounwind { 11 entry: 12 %0 = load i16, i16* @g_16, align 2 ; <i16> [#uses=1] 13 %1 = icmp sgt i16 %0, 0 ; <i1> [#uses=1] 14 br i1 %1, label %bb2, label %bb.nph 15 16 bb.nph: ; preds = %entry 17 %g_16.promoted = load i16, i16* @g_16 ; <i16> [#uses=1] 18 br label %bb 19 20 bb: ; preds = %bb1, %bb.nph 21 %g_16.tmp.0 = phi i16 [ %g_16.promoted, %bb.nph ], [ %2, %bb1 ] ; <i16> [#uses=1] 22 %2 = add i16 %g_16.tmp.0, -1 ; <i16> [#uses=3] 23 br label %bb1 24 25 bb1: ; preds = %bb 26 %3 = icmp sgt i16 %2, 0 ; <i1> [#uses=1] 27 br i1 %3, label %bb1.bb2_crit_edge, label %bb 28 29 bb1.bb2_crit_edge: ; preds = %bb1 30 store i16 %2, i16* @g_16 31 br label %bb2 32 33 bb2: ; preds = %bb1.bb2_crit_edge, %entry 34 br label %return 35 36 return: ; preds = %bb2 37 ret void 38 } 39 40 declare i32 @main() nounwind 41 42 declare i32 @printf(i8*, ...) nounwind 43 44
