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gerrit-public.fairphone.software / toolchain / llvm-project / 2fc5a786beaba1fbac1de65d78889d72b667f2d3 / . / llvm / test / Transforms / Util / PredicateInfo / edge.ll
blob: 31c8faae496b08191ee1b69e24a34226504f6ed7 [file] [log] [blame]
Eric Christophercee313d2019-04-17 04:52:47 +0000[diff] [blame]1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -print-predicateinfo -analyze < %s 2>&1 | FileCheck %s
3
4define i32 @f1(i32 %x) {
5; CHECK-LABEL: @f1(
6; CHECK-NEXT: bb0:
7; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], 0
8; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]])
9; CHECK-NEXT: br i1 [[CMP]], label [[BB2:%.*]], label [[BB1:%.*]]
10; CHECK: bb1:
11; CHECK-NEXT: br label [[BB2]]
12; CHECK: bb2:
13; CHECK-NEXT: [[COND:%.*]] = phi i32 [ [[X_0]], [[BB0:%.*]] ], [ 0, [[BB1]] ]
14; CHECK-NEXT: [[FOO:%.*]] = add i32 [[COND]], [[X]]
15; CHECK-NEXT: ret i32 [[FOO]]
16;
17bb0:
18 %cmp = icmp eq i32 %x, 0
19 br i1 %cmp, label %bb2, label %bb1
20bb1:
21 br label %bb2
22bb2:
23 %cond = phi i32 [ %x, %bb0 ], [ 0, %bb1 ]
24 %foo = add i32 %cond, %x
25 ret i32 %foo
26}
27
28define i32 @f2(i32 %x) {
29; CHECK-LABEL: @f2(
30; CHECK-NEXT: bb0:
31; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[X:%.*]], 0
32; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]])
33; CHECK-NEXT: br i1 [[CMP]], label [[BB1:%.*]], label [[BB2:%.*]]
34; CHECK: bb1:
35; CHECK-NEXT: br label [[BB2]]
36; CHECK: bb2:
37; CHECK-NEXT: [[COND:%.*]] = phi i32 [ [[X_0]], [[BB0:%.*]] ], [ 0, [[BB1]] ]
38; CHECK-NEXT: [[FOO:%.*]] = add i32 [[COND]], [[X]]
39; CHECK-NEXT: ret i32 [[FOO]]
40;
41bb0:
42 %cmp = icmp ne i32 %x, 0
43 br i1 %cmp, label %bb1, label %bb2
44bb1:
45 br label %bb2
46bb2:
47 %cond = phi i32 [ %x, %bb0 ], [ 0, %bb1 ]
48 %foo = add i32 %cond, %x
49 ret i32 %foo
50}
51
52define i32 @f3(i32 %x) {
53; CHECK-LABEL: @f3(
54; CHECK-NEXT: bb0:
55; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X:%.*]])
56; CHECK-NEXT: switch i32 [[X]], label [[BB1:%.*]] [
57; CHECK-NEXT: i32 0, label [[BB2:%.*]]
58; CHECK-NEXT: ]
59; CHECK: bb1:
60; CHECK-NEXT: br label [[BB2]]
61; CHECK: bb2:
62; CHECK-NEXT: [[COND:%.*]] = phi i32 [ [[X_0]], [[BB0:%.*]] ], [ 0, [[BB1]] ]
63; CHECK-NEXT: [[FOO:%.*]] = add i32 [[COND]], [[X]]
64; CHECK-NEXT: ret i32 [[FOO]]
65;
66bb0:
67 switch i32 %x, label %bb1 [ i32 0, label %bb2]
68bb1:
69 br label %bb2
70bb2:
71 %cond = phi i32 [ %x, %bb0 ], [ 0, %bb1 ]
72 %foo = add i32 %cond, %x
73 ret i32 %foo
74}
75
76
77define double @fcmp_oeq_not_zero(double %x, double %y) {
78; CHECK-LABEL: @fcmp_oeq_not_zero(
79; CHECK-NEXT: entry:
80; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq double [[Y:%.*]], 2.000000e+00
81; CHECK: [[Y_0:%.*]] = call double @llvm.ssa.copy.{{.+}}(double [[Y]])
82; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[RETURN:%.*]]
83; CHECK: if:
84; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[X:%.*]], [[Y_0]]
85; CHECK-NEXT: br label [[RETURN]]
86; CHECK: return:
87; CHECK-NEXT: [[RETVAL:%.*]] = phi double [ [[DIV]], [[IF]] ], [ [[X]], [[ENTRY:%.*]] ]
88; CHECK-NEXT: ret double [[RETVAL]]
89;
90entry:
91 %cmp = fcmp oeq double %y, 2.0
92 br i1 %cmp, label %if, label %return
93
94if:
95 %div = fdiv double %x, %y
96 br label %return
97
98return:
99 %retval = phi double [ %div, %if ], [ %x, %entry ]
100 ret double %retval
101
102}
103
104define double @fcmp_une_not_zero(double %x, double %y) {
105; CHECK-LABEL: @fcmp_une_not_zero(
106; CHECK-NEXT: entry:
107; CHECK-NEXT: [[CMP:%.*]] = fcmp une double [[Y:%.*]], 2.000000e+00
108; CHECK: [[Y_0:%.*]] = call double @llvm.ssa.copy.{{.+}}(double [[Y]])
109; CHECK-NEXT: br i1 [[CMP]], label [[RETURN:%.*]], label [[ELSE:%.*]]
110; CHECK: else:
111; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[X:%.*]], [[Y_0]]
112; CHECK-NEXT: br label [[RETURN]]
113; CHECK: return:
114; CHECK-NEXT: [[RETVAL:%.*]] = phi double [ [[DIV]], [[ELSE]] ], [ [[X]], [[ENTRY:%.*]] ]
115; CHECK-NEXT: ret double [[RETVAL]]
116;
117entry:
118 %cmp = fcmp une double %y, 2.0
119 br i1 %cmp, label %return, label %else
120
121else:
122 %div = fdiv double %x, %y
123 br label %return
124
125return:
126 %retval = phi double [ %div, %else ], [ %x, %entry ]
127 ret double %retval
128
129}
130
131define double @fcmp_oeq_zero(double %x, double %y) {
132; CHECK-LABEL: @fcmp_oeq_zero(
133; CHECK-NEXT: entry:
134; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq double [[Y:%.*]], 0.000000e+00
135; CHECK: [[Y_0:%.*]] = call double @llvm.ssa.copy.{{.+}}(double [[Y]])
136; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[RETURN:%.*]]
137; CHECK: if:
138; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[X:%.*]], [[Y_0]]
139; CHECK-NEXT: br label [[RETURN]]
140; CHECK: return:
141; CHECK-NEXT: [[RETVAL:%.*]] = phi double [ [[DIV]], [[IF]] ], [ [[X]], [[ENTRY:%.*]] ]
142; CHECK-NEXT: ret double [[RETVAL]]
143;
144entry:
145 %cmp = fcmp oeq double %y, 0.0
146 br i1 %cmp, label %if, label %return
147
148if:
149 %div = fdiv double %x, %y
150 br label %return
151
152return:
153 %retval = phi double [ %div, %if ], [ %x, %entry ]
154 ret double %retval
155
156}
157
158define double @fcmp_une_zero(double %x, double %y) {
159; CHECK-LABEL: @fcmp_une_zero(
160; CHECK-NEXT: entry:
161; CHECK-NEXT: [[CMP:%.*]] = fcmp une double [[Y:%.*]], -0.000000e+00
162; CHECK: [[Y_0:%.*]] = call double @llvm.ssa.copy.{{.+}}(double [[Y]])
163; CHECK-NEXT: br i1 [[CMP]], label [[RETURN:%.*]], label [[ELSE:%.*]]
164; CHECK: else:
165; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[X:%.*]], [[Y_0]]
166; CHECK-NEXT: br label [[RETURN]]
167; CHECK: return:
168; CHECK-NEXT: [[RETVAL:%.*]] = phi double [ [[DIV]], [[ELSE]] ], [ [[X]], [[ENTRY:%.*]] ]
169; CHECK-NEXT: ret double [[RETVAL]]
170;
171entry:
172 %cmp = fcmp une double %y, -0.0
173 br i1 %cmp, label %return, label %else
174
175else:
176 %div = fdiv double %x, %y
177 br label %return
178
179return:
180 %retval = phi double [ %div, %else ], [ %x, %entry ]
181 ret double %retval
182
183}
184
185
186define double @fcmp_oeq_maybe_zero(double %x, double %y, double %z1, double %z2) {
187; CHECK-LABEL: @fcmp_oeq_maybe_zero(
188; CHECK-NEXT: entry:
189; CHECK-NEXT: [[Z:%.*]] = fadd double [[Z1:%.*]], [[Z2:%.*]]
190; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq double [[Y:%.*]], [[Z]]
191; CHECK: [[Z_0:%.*]] = call double @llvm.ssa.copy.{{.+}}(double [[Z]])
192; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[RETURN:%.*]]
193; CHECK: if:
194; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[X:%.*]], [[Z_0]]
195; CHECK-NEXT: br label [[RETURN]]
196; CHECK: return:
197; CHECK-NEXT: [[RETVAL:%.*]] = phi double [ [[DIV]], [[IF]] ], [ [[X]], [[ENTRY:%.*]] ]
198; CHECK-NEXT: ret double [[RETVAL]]
199;
200entry:
201 %z = fadd double %z1, %z2
202 %cmp = fcmp oeq double %y, %z
203 br i1 %cmp, label %if, label %return
204
205if:
206 %div = fdiv double %x, %z
207 br label %return
208
209return:
210 %retval = phi double [ %div, %if ], [ %x, %entry ]
211 ret double %retval
212
213}
214
215define double @fcmp_une_maybe_zero(double %x, double %y, double %z1, double %z2) {
216; CHECK-LABEL: @fcmp_une_maybe_zero(
217; CHECK-NEXT: entry:
218; CHECK-NEXT: [[Z:%.*]] = fadd double [[Z1:%.*]], [[Z2:%.*]]
219; CHECK-NEXT: [[CMP:%.*]] = fcmp une double [[Y:%.*]], [[Z]]
220; CHECK: [[Z_0:%.*]] = call double @llvm.ssa.copy.{{.+}}(double [[Z]])
221; CHECK-NEXT: br i1 [[CMP]], label [[RETURN:%.*]], label [[ELSE:%.*]]
222; CHECK: else:
223; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[X:%.*]], [[Z_0]]
224; CHECK-NEXT: br label [[RETURN]]
225; CHECK: return:
226; CHECK-NEXT: [[RETVAL:%.*]] = phi double [ [[DIV]], [[ELSE]] ], [ [[X]], [[ENTRY:%.*]] ]
227; CHECK-NEXT: ret double [[RETVAL]]
228;
229entry:
230 %z = fadd double %z1, %z2
231 %cmp = fcmp une double %y, %z
232 br i1 %cmp, label %return, label %else
233
234else:
235 %div = fdiv double %x, %z
236 br label %return
237
238return:
239 %retval = phi double [ %div, %else ], [ %x, %entry ]
240 ret double %retval
241
242}