33 lines · plain
1; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" 2>&1 2>&1 | FileCheck %s2 3; CHECK: Loop %bb: backedge-taken count is (7 + (-1 * %argc))4 5define i32 @main(i32 %argc, ptr %argv) nounwind {6entry:7 %0 = icmp ugt i32 %argc, 7 ; <i1> [#uses=1]8 br i1 %0, label %bb2, label %bb.nph9 10bb.nph: ; preds = %entry11 br label %bb12 13bb: ; preds = %bb.nph, %bb114 %indvar = phi i32 [ 0, %bb.nph ], [ %indvar.next, %bb1 ] ; <i32> [#uses=2]15 %argc_addr.04 = add i32 %indvar, %argc ; <i32> [#uses=1]16 tail call void (...) @Test() nounwind17 %1 = add i32 %argc_addr.04, 1 ; <i32> [#uses=1]18 br label %bb119 20bb1: ; preds = %bb21 %phitmp = icmp ugt i32 %1, 7 ; <i1> [#uses=1]22 %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1]23 br i1 %phitmp, label %bb1.bb2_crit_edge, label %bb24 25bb1.bb2_crit_edge: ; preds = %bb126 br label %bb227 28bb2: ; preds = %bb1.bb2_crit_edge, %entry29 ret i32 030}31 32declare void @Test(...)33