1 ; Check that differences are reported in the BB processing order
2 ; following the control flow, independent on whether the diff was depending
3 ; on an assumption or not.
5 ; Replace %newvar1 with %newvar2 in the phi node. This can only
6 ; be detected to be different once BB2 has been processed, so leads to a assumption
7 ; and is detected to diff later on.
8 ; Also, replace the 1000 by 2000 in BB1, which is detected directly.
11 ; RUN: cat %s | sed -e 's/ %newvar1, %BB2 / %newvar2, %BB2 /' | sed -e 's/1000/2000/' > %t.ll
12 ; RUN: not llvm-diff %s %t.ll 2>&1 | FileCheck %s
14 ; CHECK: in function func:
15 ; CHECK-NEXT: in block %BB0:
16 ; CHECK-NEXT: > %var = phi i32 [ 0, %ENTRY ], [ %newvar2, %BB2 ]
17 ; CHECK-NEXT: < %var = phi i32 [ 0, %ENTRY ], [ %newvar1, %BB2 ]
18 ; CHECK-NEXT: in block %BB1:
19 ; CHECK-NEXT: > %diffvar = add i32 %var, 2000
20 ; CHECK-NEXT: < %diffvar = add i32 %var, 1000
27 ; When diffing this phi node, we need to detect whether
28 ; %newvar1 is equivalent, which is not known until BB2 has been processed.
29 %var = phi i32 [ 0, %ENTRY ], [ %newvar1, %BB2 ]
30 %cnd = icmp eq i32 %var, 0
31 br i1 %cnd, label %BB1, label %END
34 %diffvar = add i32 %var, 1000
38 %newvar1 = add i32 %var, 1
39 %newvar2 = add i32 %var, 2
43 ; Equivalence of the ret depends on equivalence of %var.
44 ; Even if %var differs, we do not report a diff here, because
45 ; this is an indirect diff caused by another diff.