; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5 ; RUN: opt -disable-output "-passes=print" \ ; RUN: -scalar-evolution-classify-expressions=0 < %s 2>&1 | FileCheck %s define i32 @exit_count_samesign(i32 %iter.count, ptr %ptr) { ; CHECK-LABEL: 'exit_count_samesign' ; CHECK-NEXT: Determining loop execution counts for: @exit_count_samesign ; CHECK-NEXT: Loop %inner.loop: backedge-taken count is {(-2 + %iter.count),+,-1}<%outer.loop> ; CHECK-NEXT: Loop %inner.loop: constant max backedge-taken count is i32 2147483646 ; CHECK-NEXT: Loop %inner.loop: symbolic max backedge-taken count is {(-2 + %iter.count),+,-1}<%outer.loop> ; CHECK-NEXT: Loop %inner.loop: Trip multiple is 1 ; CHECK-NEXT: Loop %outer.loop: Unpredictable backedge-taken count. ; CHECK-NEXT: Loop %outer.loop: Unpredictable constant max backedge-taken count. ; CHECK-NEXT: Loop %outer.loop: Unpredictable symbolic max backedge-taken count. ; entry: br label %outer.loop ph: br label %outer.loop outer.loop: %iv.outer = phi i32 [ %iv.outer.1, %ph ], [ %iter.count, %entry ] %iv.outer.1 = add nsw i32 %iv.outer, -1 %ext.outer = zext nneg i32 %iv.outer.1 to i64 %gep.outer = getelementptr double, ptr %ptr, i64 %ext.outer store double poison, ptr %gep.outer %exit.cond.outer = icmp samesign ugt i32 %iv.outer, 1 br i1 %exit.cond.outer, label %inner.loop, label %ph inner.loop: %iv.inner = phi i32 [ %iv.next, %inner.loop ], [ 0, %outer.loop ] %ext.inner = zext nneg i32 %iv.inner to i64 %gep.inner = getelementptr double, ptr %ptr, i64 %ext.inner store double poison, ptr %gep.inner %iv.next = add nuw nsw i32 %iv.inner, 1 %exit.cond.inner = icmp slt i32 %iv.next, %iv.outer.1 br i1 %exit.cond.inner, label %inner.loop, label %ph exit: ret i32 0 }