xref: /llvm-project/llvm/test/Transforms/LICM/loop-sink-phi-in-preheader.ll (revision bc00f47c016a9042138d16a5ead9147c631396e5)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -S -passes=loop-sink %s | FileCheck %s
3
4define void @preheader_of_inner_has_phi() !prof !0 {
5; CHECK-LABEL: @preheader_of_inner_has_phi(
6; CHECK-NEXT:  entry:
7; CHECK-NEXT:    br label [[OUTER_HEADER:%.*]]
8; CHECK:       outer.header:
9; CHECK-NEXT:    [[PH_1:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[PH_2:%.*]], [[OUTER_LATCH:%.*]] ]
10; CHECK-NEXT:    br label [[INNER:%.*]]
11; CHECK:       inner:
12; CHECK-NEXT:    [[PH_2]] = phi i32 [ 0, [[OUTER_HEADER]] ], [ 0, [[INNER]] ]
13; CHECK-NEXT:    br i1 false, label [[OUTER_LATCH]], label [[INNER]], !prof [[PROF1:![0-9]+]]
14; CHECK:       outer.latch:
15; CHECK-NEXT:    br label [[OUTER_HEADER]]
16;
17entry:
18  br label %outer.header
19
20outer.header:
21  %ph.1 = phi i32 [ 0, %entry ], [ %ph.2, %outer.latch ]
22  br label %inner
23
24inner:
25  %ph.2 = phi i32 [ 0, %outer.header ], [ 0, %inner ]
26  br i1 false, label %outer.latch, label %inner, !prof !1
27
28outer.latch:
29  br label %outer.header
30}
31
32!0 = !{!"function_entry_count", i64 549102}
33!1 = !{!"branch_weights", i32 4027913, i32 1}
34