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gerrit-public.fairphone.software / toolchain / llvm-project / f913fd6eb0c228041b77a645d76993760d3b1421 / . / llvm / test / Transforms / Util / PredicateInfo / diamond.ll
blob: 8e3da687c1395f21814477d60c526019e9a5b1fd [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 < %s 2>&1 | FileCheck %s
3define i1 @f(i32 %x, i1 %y) {
4; CHECK-LABEL: @f(
5; CHECK-NEXT: br i1 [[Y:%.*]], label [[BB0:%.*]], label [[BB1:%.*]]
6; CHECK: bb0:
7; CHECK-NEXT: [[CMP:%.*]] = icmp sge i32 [[X:%.*]], 0
8; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]])
9; CHECK-NEXT: br i1 [[CMP]], label [[BB2:%.*]], label [[BB3:%.*]]
10; CHECK: bb1:
11; CHECK-NEXT: [[X2:%.*]] = add nuw nsw i32 [[X]], 1
12; CHECK-NEXT: [[CMP2:%.*]] = icmp sge i32 [[X2]], 2
13; CHECK: [[X2_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X2]])
14; CHECK-NEXT: br i1 [[CMP2]], label [[BB2]], label [[BB3]]
15; CHECK: bb2:
16; CHECK-NEXT: [[X3:%.*]] = phi i32 [ [[X_0]], [[BB0]] ], [ [[X2_0]], [[BB1]] ]
17; CHECK-NEXT: br label [[BB3]]
18; CHECK: bb3:
19; CHECK-NEXT: ret i1 false
20;
21 br i1 %y, label %bb0, label %bb1
22 bb0:
23 %cmp = icmp sge i32 %x, 0 ; x > 0
24 br i1 %cmp, label %bb2, label %bb3
25 bb1:
26 %x2 = add nsw nuw i32 %x, 1
27 %cmp2 = icmp sge i32 %x2, 2 ; x+1 > 2 / x > 1
28 br i1 %cmp2, label %bb2, label %bb3
29 bb2:
30 %x3 = phi i32 [ %x, %bb0 ], [ %x2, %bb1 ]
31 br label %bb3
32 bb3:
33 ret i1 0
34}
35
36define i1 @g(i32 %x, i1 %y) {
37; CHECK-LABEL: @g(
38; CHECK-NEXT: br i1 [[Y:%.*]], label [[BB0:%.*]], label [[BB1:%.*]]
39; CHECK: bb0:
40; CHECK-NEXT: [[CMP:%.*]] = icmp sge i32 [[X:%.*]], 0
41; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]])
42; CHECK-NEXT: br i1 [[CMP]], label [[BB3:%.*]], label [[BB2:%.*]]
43; CHECK: bb1:
44; CHECK-NEXT: [[X2:%.*]] = add nuw nsw i32 [[X]], 1
45; CHECK-NEXT: [[CMP2:%.*]] = icmp sge i32 [[X2]], 2
46; CHECK: [[X2_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X2]])
47; CHECK-NEXT: br i1 [[CMP2]], label [[BB3]], label [[BB2]]
48; CHECK: bb2:
49; CHECK-NEXT: [[X3:%.*]] = phi i32 [ [[X_0]], [[BB0]] ], [ [[X2_0]], [[BB1]] ]
50; CHECK-NEXT: br label [[BB3]]
51; CHECK: bb3:
52; CHECK-NEXT: ret i1 false
53;
54 br i1 %y, label %bb0, label %bb1
55 bb0:
56 %cmp = icmp sge i32 %x, 0 ; x > 0
57 br i1 %cmp, label %bb3, label %bb2
58 bb1:
59 %x2 = add nsw nuw i32 %x, 1
60 %cmp2 = icmp sge i32 %x2, 2 ; x+1 > 2 / x > 1
61 br i1 %cmp2, label %bb3, label %bb2
62 bb2:
63 %x3 = phi i32 [ %x, %bb0 ], [ %x2, %bb1 ]
64 br label %bb3
65 bb3:
66 ret i1 0
67}
68