; RUN: opt -indvars -S < %s | FileCheck %s ; Indvars should be able to simplify simple comparisons involving ; induction variables. ; CHECK: %cond = and i1 %tobool.not, true 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-n8:16:32:64" @X = external global [0 x double] define void @foo(i64 %n, i32* nocapture %p) nounwind { entry: %cmp9 = icmp sgt i64 %n, 0 br i1 %cmp9, label %pre, label %return pre: %t3 = load i32* %p %tobool.not = icmp ne i32 %t3, 0 br label %loop loop: %i = phi i64 [ 0, %pre ], [ %inc, %for.inc ] %cmp6 = icmp slt i64 %i, %n %cond = and i1 %tobool.not, %cmp6 br i1 %cond, label %if.then, label %for.inc if.then: %arrayidx = getelementptr [0 x double]* @X, i64 0, i64 %i store double 3.200000e+00, double* %arrayidx br label %for.inc for.inc: %inc = add nsw i64 %i, 1 %exitcond = icmp sge i64 %inc, %n br i1 %exitcond, label %return, label %loop return: ret void }