53 lines · plain
1; RUN: llvm-reduce --abort-on-invalid-reduction --delta-passes=basic-blocks --test FileCheck --test-arg --check-prefixes=CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t2; RUN: FileCheck %s < %t3 4 5; Check that no invalid reduction is produced. Remaining unreachable6; blocks can leave instructions that dominate uses. When %bb3 was made7; unreachable it produced this verifier error:8; Instruction does not dominate all uses!9; %i4 = icmp eq i32 0, 010; %i6 = select i1 %i4, i1 false, i1 false11 12 13; CHECK: define void @func() {14; CHECK-NEXT: bb:15; CHECK-NEXT: br label %bb116 17; CHECK: bb1:18; CHECK-NEXT: label %bb319 20; CHECK: bb2:21; CHECK-NEXT: br i1 false, label %bb1, label %bb222 23; CHECK: bb3:24; CHECK-NEXT: %i = phi i32 [ 0, %bb1 ]25; CHECK: %i4 = icmp eq i32 0, 026; CHECK-NEXT: br label %bb527 28; CHECK: bb5:29; CHECK-NEXT: %i6 = select i1 %i4, i1 false, i1 false30; CHECK-NEXT: store i32 031; CHECK-NEXT: ret void32define void @func() {33bb:34 br label %bb135 36bb1: ; preds = %bb2, %bb37 br label %bb338 39bb2: ; preds = %bb240 br i1 false, label %bb1, label %bb241 42bb3: ; preds = %bb143 %i = phi i32 [ 0, %bb1 ]44 %i4 = icmp eq i32 0, 045 br label %bb546 47bb5: ; preds = %bb348 %i6 = select i1 %i4, i1 false, i1 false49 ; CHECK-INTERESTINGNESS: store50 store i32 0, ptr undef, align 451 ret void52}53