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; RUN: llvm-reduce --abort-on-invalid-reduction --delta-passes=basic-blocks --test=FileCheck --test-arg=--check-prefix=CHECK-INTERESTINGNESS --test-arg=%s --test-arg=--input-file %s -o %t
; RUN: FileCheck %s < %t
; Make sure an invalid reduction isn't tried when deleting %bb5,
; causing the or in %bb6 to use its own output value.
; CHECK-INTERESTINGNESS: store i32 0
; CHECK-INTERESTINGNESS: store i32 1
; CHECK-INTERESTINGNESS: store i32 2
; CHECK: store i32 0
; CHECK-NEXT: br label %bb5
; CHECK: bb5:
; CHECK-NEXT: switch
; CHECK: bb6:
; CHECK-NEXT: %tmp = phi i32 [ %tmp7, %bb6 ]
; CHECK-NEXT: store i32 1
; CHECK-NEXT: %tmp7 = or i32 %tmp, 0
; CHECK-NEXT: br label %bb6
; CHECK-NOT: bb7
; CHECK: bb8:
; CHECK-NEXT: store i32 2,
define amdgpu_kernel void @snork(i32 %arg, i1 %arg1) {
bb:
store i32 0, ptr addrspace(3) null
br i1 %arg1, label %bb5, label %bb7
bb5: ; preds = %bb5, %bb
switch i32 %arg, label %bb5 [
i32 0, label %bb8
i32 1, label %bb6
]
bb6: ; preds = %bb6, %bb5
%tmp = phi i32 [ %tmp7, %bb6 ], [ 0, %bb5 ]
store i32 1, ptr addrspace(3) null
%tmp7 = or i32 %tmp, 0
br label %bb6
bb7:
store i32 3, ptr addrspace(3) null
br label %bb8
bb8: ; preds = %bb5
store i32 2, ptr addrspace(3) null
unreachable
}
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