1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 2; RUN: opt < %s -passes=jump-threading -S -jump-threading-across-loop-headers | FileCheck %s 3 4; Make sure we correctly distinguish between %tmp15 and %tmp16 when we clone 5; body2. 6 7define i32 @test(i1 %ARG1, i1 %ARG2, i32 %n) { 8; CHECK-LABEL: define i32 @test( 9; CHECK-SAME: i1 [[ARG1:%.*]], i1 [[ARG2:%.*]], i32 [[N:%.*]]) { 10; CHECK-NEXT: head1: 11; CHECK-NEXT: br i1 [[ARG1]], label [[EXIT:%.*]], label [[BODY2:%.*]] 12; CHECK: head1.thread: 13; CHECK-NEXT: br i1 [[ARG1]], label [[EXIT]], label [[BODY2_THREAD9:%.*]] 14; CHECK: body2.thread9: 15; CHECK-NEXT: [[TMP1612:%.*]] = add i32 [[TMP165:%.*]], 1 16; CHECK-NEXT: br label [[LATCH1:%.*]] 17; CHECK: body1: 18; CHECK-NEXT: [[TMP12:%.*]] = icmp sgt i32 [[TMP165]], 1 19; CHECK-NEXT: br i1 [[TMP12]], label [[BODY2_THREAD:%.*]], label [[HEAD1_THREAD:%.*]] 20; CHECK: body2.thread: 21; CHECK-NEXT: [[TMP163:%.*]] = add i32 [[TMP165]], 1 22; CHECK-NEXT: br label [[LATCH1]] 23; CHECK: body2: 24; CHECK-NEXT: [[TMP14:%.*]] = phi i32 [ 0, [[HEAD1:%.*]] ] 25; CHECK-NEXT: [[TMP15:%.*]] = phi i32 [ 0, [[HEAD1]] ] 26; CHECK-NEXT: [[TMP16:%.*]] = add i32 [[TMP14]], 1 27; CHECK-NEXT: br i1 [[ARG2]], label [[EXIT]], label [[LATCH1]] 28; CHECK: latch1: 29; CHECK-NEXT: [[TMP165]] = phi i32 [ [[TMP163]], [[BODY2_THREAD]] ], [ [[TMP16]], [[BODY2]] ], [ [[TMP1612]], [[BODY2_THREAD9]] ] 30; CHECK-NEXT: [[TMP154:%.*]] = phi i32 [ [[TMP165]], [[BODY2_THREAD]] ], [ [[TMP15]], [[BODY2]] ], [ [[TMP165]], [[BODY2_THREAD9]] ] 31; CHECK-NEXT: [[TMP18:%.*]] = icmp sgt i32 [[TMP165]], [[N]] 32; CHECK-NEXT: br i1 [[TMP18]], label [[EXIT]], label [[BODY1:%.*]] 33; CHECK: exit: 34; CHECK-NEXT: [[RC:%.*]] = phi i32 [ [[TMP15]], [[BODY2]] ], [ [[TMP154]], [[LATCH1]] ], [ -1, [[HEAD1]] ], [ -1, [[HEAD1_THREAD]] ] 35; CHECK-NEXT: ret i32 [[RC]] 36; 37entry: 38 br label %head1 39 40head1: ; preds = %entry, %body1 41 %tmp = phi i32 [ 0, %entry ], [ %tmp16, %body1 ] 42 %tmp3 = phi i32 [ 0, %entry ], [ %tmp16, %body1 ] 43 %tmp4 = phi i32 [ 0, %entry ], [ %tmp16, %body1 ] 44 br i1 %ARG1, label %exit, label %body2 45 46body1: ; preds = %latch1 47 %tmp12 = icmp sgt i32 %tmp16, 1 48 br i1 %tmp12, label %body2, label %head1 49 50body2: ; preds = %head1, %body1 51 %tmp14 = phi i32 [ %tmp16, %body1 ], [ %tmp, %head1 ] 52 %tmp15 = phi i32 [ %tmp16, %body1 ], [ %tmp3, %head1 ] 53 %tmp16 = add i32 %tmp14, 1 54 br i1 %ARG2, label %exit, label %latch1 55 56latch1: ; preds = %body2 57 %tmp18 = icmp sgt i32 %tmp16, %n 58 br i1 %tmp18, label %exit, label %body1 59 60exit: ; preds = %latch1, %body2, %head1 61 %rc = phi i32 [ %tmp15, %body2 ], [ %tmp15, %latch1 ], [ -1, %head1 ] 62 ret i32 %rc 63} 64