xref: /llvm-project/llvm/test/Transforms/StructurizeCFG/invert-condition.ll (revision bf6f82a9df6a1693a5399039dcadd7fc00dab65e)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -S -structurizecfg %s | FileCheck %s
3
4define void @invert_condition(i1 %arg) {
5; CHECK-LABEL: @invert_condition(
6; CHECK-NEXT:  bb:
7; CHECK-NEXT:    [[TMP:%.*]] = load volatile float, ptr addrspace(1) undef
8; CHECK-NEXT:    [[TMP1:%.*]] = load volatile float, ptr addrspace(1) undef
9; CHECK-NEXT:    br label [[BB2:%.*]]
10; CHECK:       bb2:
11; CHECK-NEXT:    [[TMP3:%.*]] = fcmp oge float [[TMP]], [[TMP1]]
12; CHECK-NEXT:    [[TMP4:%.*]] = xor i1 [[ARG:%.*]], [[TMP3]]
13; CHECK-NEXT:    [[TMP0:%.*]] = xor i1 [[TMP4]], true
14; CHECK-NEXT:    br i1 [[TMP0]], label [[BB5:%.*]], label [[BB2]]
15; CHECK:       bb5:
16; CHECK-NEXT:    ret void
17;
18bb:
19  %tmp = load volatile float, ptr addrspace(1) undef
20  %tmp1 = load volatile float, ptr addrspace(1) undef
21  br label %bb2
22
23bb2:                                              ; preds = %bb2, %bb
24  %tmp3 = fcmp oge float %tmp, %tmp1
25  %tmp4 = xor i1 %arg, %tmp3
26  br i1 %tmp4, label %bb2, label %bb5
27
28bb5:                                              ; preds = %bb2
29  ret void
30}
31
32define void @invert_condition_phi(i32 %arg) {
33; CHECK-LABEL: @invert_condition_phi(
34; CHECK-NEXT:  main_body:
35; CHECK-NEXT:    [[I5:%.*]] = icmp eq i32 [[ARG:%.*]], 0
36; CHECK-NEXT:    [[I5_INV:%.*]] = xor i1 [[I5]], true
37; CHECK-NEXT:    br i1 [[I5_INV]], label [[IF1:%.*]], label [[ENDIF1:%.*]]
38; CHECK:       if1:
39; CHECK-NEXT:    br label [[ENDIF1]]
40; CHECK:       endif1:
41; CHECK-NEXT:    [[I7:%.*]] = phi i1 [ [[I5]], [[MAIN_BODY:%.*]] ], [ false, [[IF1]] ]
42; CHECK-NEXT:    [[I7_INV:%.*]] = xor i1 [[I7]], true
43; CHECK-NEXT:    br i1 [[I7_INV]], label [[IF4:%.*]], label [[ENDIF4:%.*]]
44; CHECK:       if4:
45; CHECK-NEXT:    br label [[ENDIF4]]
46; CHECK:       endif4:
47; CHECK-NEXT:    ret void
48;
49main_body:
50  %i5 = icmp eq i32 %arg, 0
51  br i1 %i5, label %endif1, label %if1
52
53if1:
54  br label %endif1
55
56endif1:
57  %i7 = phi i1 [ false, %if1 ], [ %i5, %main_body ]
58  br i1 %i7, label %endif4, label %if4
59
60if4:
61  br label %endif4
62
63endif4:
64  ret void
65}
66