1 ; RUN: opt < %s -analyze -scalar-evolution 2 ; PR4537 3 4 ; ModuleID = 'b.bc' 5 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" 6 target triple = "x86_64-unknown-linux-gnu" 7 8 define i32 @test() { 9 entry: 10 %0 = load i32*, i32** undef, align 8 ; <i32*> [#uses=1] 11 %1 = ptrtoint i32* %0 to i64 ; <i64> [#uses=1] 12 %2 = sub i64 undef, %1 ; <i64> [#uses=1] 13 %3 = lshr i64 %2, 3 ; <i64> [#uses=1] 14 %4 = trunc i64 %3 to i32 ; <i32> [#uses=2] 15 br i1 undef, label %bb10, label %bb4.i 16 17 bb4.i: ; preds = %bb4.i, %entry 18 %i.0.i6 = phi i32 [ %8, %bb4.i ], [ 0, %entry ] ; <i32> [#uses=2] 19 %5 = sub i32 %4, %i.0.i6 ; <i32> [#uses=1] 20 %6 = sext i32 %5 to i64 ; <i64> [#uses=1] 21 %7 = udiv i64 undef, %6 ; <i64> [#uses=1] 22 %8 = add i32 %i.0.i6, 1 ; <i32> [#uses=2] 23 %phitmp = icmp eq i64 %7, 0 ; <i1> [#uses=1] 24 %.not.i = icmp sge i32 %8, %4 ; <i1> [#uses=1] 25 %or.cond.i = or i1 %phitmp, %.not.i ; <i1> [#uses=1] 26 br i1 %or.cond.i, label %bb10, label %bb4.i 27 28 bb10: ; preds = %bb4.i, %entry 29 unreachable 30 } 31
